The world is getting smarter. Across cities, homes, factories, and streets, tiny connected devices are changing how everything works. These are IoT devices—small sensors and tools that connect to the internet and make systems more intelligent and efficient. But where are these devices going? Which industries are using them most, and how can you take advantage of this trend?
1. The energy sector accounts for over 20% of global IoT device deployments.
The energy industry is one of the biggest users of IoT devices today. More than one in every five IoT devices installed around the world is used to manage energy.
These devices monitor power usage, reduce waste, and keep systems running efficiently.
Why is this such a big deal? Because energy is everywhere. From lighting homes and running factories to powering electric vehicles, it touches every part of life.
Energy providers are under pressure to reduce emissions, improve uptime, and cut costs. IoT gives them the tools to do just that.
For example, smart grid sensors can detect faults in real-time. Instead of waiting for a blackout, systems can automatically reroute power or send out a technician before a problem spreads. These proactive fixes save money and increase reliability.
For businesses, tapping into this trend can mean a lot. If you’re a startup, think about building solutions that help utility companies manage their grids.
If you’re in manufacturing, look into how IoT can help cut your energy bills by showing where energy is wasted.
And if you’re an inventor or innovator, this space is full of opportunities to create new devices that detect usage patterns, automate shut-offs, or improve system diagnostics.
No matter where you sit in the ecosystem, the energy sector is a huge playing field for IoT. With 20% of global devices installed here, the market is big, active, and growing.
2. Smart meters represent 60% of IoT devices in the utility sector.
Within energy and utilities, smart meters have taken the lead. These devices are responsible for more than half of all IoT installations in the utility space.
Why? Because they solve a massive problem—manual meter reading and delayed billing.
Smart meters automatically track electricity, gas, or water use in real time. No more estimated bills. No more needing someone to visit each home or building. Everything is done remotely, and data flows instantly to utility companies.
For energy providers, this means faster billing, lower labor costs, and fewer disputes.
For customers, it means transparency and control. They can monitor their usage through apps and dashboards, spotting patterns and making changes that save money.
This is where inventors and entrepreneurs can make a real impact. If you’re in product development, consider building software that helps homeowners get the most out of their smart meter data.
Or think about solutions for apartment buildings or office spaces where energy is shared and needs to be divided fairly.
For utility companies, integrating IoT with AI can take this even further.
Predictive models based on smart meter data can help forecast demand, avoid outages, or recommend pricing plans that suit each user’s habits.
The smart meter wave is far from over. As more cities and countries mandate their use, there’s still room for new ideas, tools, and services that support this growing ecosystem.
3. Over 1.1 billion smart electricity meters were installed globally by the end of 2023.
That’s a staggering number—over a billion smart electricity meters are now in place around the world.
These aren’t just gadgets. They’re part of a massive infrastructure shift that’s quietly modernizing the power grid in almost every country.
These devices collect usage data every few minutes and send it to utility companies. This allows for time-of-use billing, energy-saving tips, and more stable power grids.
With data flowing at this scale, companies can better predict where power will be needed, identify outages, and plan upgrades.
For companies in the IoT supply chain, the opportunity is huge. Think hardware, cloud platforms, installation services, and cybersecurity tools. Every one of these billion meters needs secure communication and support.
What about for cities or governments? This infrastructure creates a foundation for smarter neighborhoods.
For example, if a city knows where peak loads happen, it can redesign how power is distributed or encourage the use of solar panels in specific areas.
Even investors should pay attention. Companies that support the installation or maintenance of smart meters—whether through software or services—are seeing consistent growth.
The trick is to focus on ease of use, low maintenance, and high integration capability.
This stat isn’t just about numbers—it’s about a permanent shift toward a smarter, more efficient way to manage electricity. And it’s only just beginning.
4. IoT in traffic and transportation is expected to surpass 800 million connected devices by 2025.
Traffic is one of the most complex systems in any city. Cars, buses, bikes, and pedestrians are all moving at once, often without clear communication between them. That’s why cities are turning to IoT.
By 2025, more than 800 million IoT devices will be used in traffic and transportation. These include sensors embedded in roads, GPS trackers in vehicles, traffic light controllers, and smart signage.
The goal is to make movement safer, faster, and cleaner.
For city planners, this tech gives a full picture of how streets are used. It can show where congestion builds up, how long buses are delayed, or where more crosswalks are needed.
That insight helps make better decisions.
If you’re building in this space, the possibilities are huge. Think about vehicle-to-infrastructure communication. Cars that talk to traffic lights to optimize speed. Or apps that use real-time data to reroute drivers around accidents. Or systems that help delivery fleets reduce idle time.
Startups can also help cities analyze this mountain of data.
Real-time dashboards, AI traffic modeling, or predictive maintenance for road infrastructure—all of these are ripe for innovation.
This stat is your green light. Traffic and transport are going smart, and with 800 million devices on the way, there’s room for bold new ideas and real impact.
5. Traffic monitoring systems make up nearly 30% of urban IoT deployments.
Urban areas are leading the charge in IoT adoption, and one-third of those devices are going into traffic monitoring.
Cameras, vehicle counters, speed detectors, and air quality sensors are being installed on almost every street corner in major cities.
Why? Because knowing what’s happening on the roads helps manage everything better.
When a city can see traffic build-ups in real-time, it can adjust light cycles, send alerts, or even redirect flow using dynamic signs.
But this data isn’t just for traffic engineers. Insurance companies are starting to use it. So are ride-sharing platforms and logistics firms. There’s a growing demand for services that can read this data, make predictions, and turn it into useful actions.
That’s your window of opportunity. If you’re an app developer, think about how you can use traffic monitoring data to help delivery drivers avoid delays.
If you’re in AI, consider building a tool that learns from congestion patterns and suggests better road layouts.
Cities are hungry for tech partners who can help them make sense of the data they’re collecting.
They don’t just want hardware—they want insights. If you can turn traffic data into smarter streets, this market is yours to shape.
6. Security and surveillance account for approximately 15% of total IoT installations.
One of the first uses for IoT devices—before smart homes, before smart cities—was security. Today, around 15% of all IoT devices installed globally are used for surveillance and monitoring.
That includes everything from cameras in city centers to motion detectors in office buildings.
This number shows just how critical security is in the IoT world.
Whether it’s a homeowner checking a live feed on their phone or a city tracking crowd movement during a festival, connected devices make it all possible in real time.
The real power here comes from integration. A camera alone is just a video feed. But a camera connected to facial recognition software, license plate readers, or environmental sensors can detect threats automatically.
This is where the next wave of innovation will happen—turning raw feeds into actionable alerts.
If you’re a developer, focus on software that makes these devices smarter. Can your platform detect unusual patterns without needing a human to watch the feed? Can it alert authorities when something truly unusual happens?
And for product designers, think about form factor and battery life. Many surveillance devices need to operate outdoors, 24/7, with limited maintenance. Low power and weatherproofing are key.
Security is only going to become more important. As more public spaces and private properties adopt smart systems, there will be endless demand for connected, intelligent devices that protect people and assets.
7. Over 1 billion CCTV and surveillance devices were connected globally by 2024.
This stat builds on the last one: more than a billion surveillance devices are now connected to networks around the world.
That’s a huge jump from just a few years ago, and it shows how central video monitoring has become to our infrastructure.
But not all of these devices are just watching—they’re analyzing. Smart cameras can now count people, recognize faces, detect movement, or even read body language.
That’s a big shift from passive recording to active detection.
For businesses, this has big implications. Retailers can track foot traffic and adjust staffing levels. Airports can spot unusual crowd movement. Event venues can improve safety in real time.
If you’re a company offering cloud services, video data is heavy. That means there’s a growing market for cloud storage solutions that are fast, secure, and cost-efficient.
You can also create local edge computing solutions that analyze footage before sending it to the cloud—saving bandwidth and speeding up response times.
And let’s not forget privacy. With more surveillance comes more scrutiny. Legal compliance, data protection, and ethical use are all growing concerns.
If you can build systems that balance safety with privacy, you’re going to be a valuable partner for both public and private sectors.
This space is large, active, and still evolving. Whether you’re building hardware, writing AI algorithms, or managing video data, there’s a place for you in the growing surveillance IoT market.
8. Industrial IoT (IIoT) leads all sectors with over 2 billion devices in use.
Factories, warehouses, and heavy industries are ahead of the pack when it comes to IoT adoption.
With over 2 billion devices already in use, Industrial IoT is the most active sector right now.
These devices track machine performance, monitor environmental conditions, manage inventory, and more. In a factory, a single machine might have ten sensors measuring temperature, vibration, speed, and power use.
Multiply that by hundreds of machines, and you start to see how fast this number adds up.
What makes IIoT so powerful is that it solves high-cost problems. A failed machine can stop an entire production line. But with predictive maintenance, IoT sensors can detect wear and tear before anything breaks.
That saves money, prevents delays, and keeps output on track.
If you’re building solutions in this space, think beyond the sensor. How do you display the data? How do you alert the right people? Can your system learn over time and offer suggestions?
Even more, industries want connected tools that are rugged, long-lasting, and easy to install. If you’re a hardware startup, design devices that work in harsh environments.
If you’re a software company, build platforms that can handle millions of data points and deliver instant insights.
The industrial sector moves quickly once ROI is proven. If your product helps companies increase uptime or reduce risk, adoption can scale fast. That’s why IIoT isn’t just big—it’s booming.
9. Building automation represents around 10% of all IoT installations.
Modern buildings are more than bricks and steel—they’re smart, responsive, and full of sensors.
Around 10% of all IoT devices are installed in commercial and residential buildings to manage things like lighting, climate, access, and safety.
This shift is being driven by rising energy costs, sustainability goals, and tenant expectations.
People want buildings that are comfortable, safe, and efficient. Facility managers want systems they can control remotely, automate easily, and adapt without costly rewiring.
IoT makes that possible. A connected thermostat can learn usage patterns and reduce heating costs. A motion sensor can trigger lights only when someone is in the room. Access systems can track who enters and when, improving both security and compliance.
This is a goldmine for businesses in building management, real estate, and proptech. If you’re in software, think about dashboards that help facility managers see energy usage in real-time.
If you’re a hardware designer, create modular devices that are easy to install and scale.
Also consider retrofitting. Older buildings need upgrades but can’t always afford full rewiring. Wireless IoT systems offer a low-cost, low-disruption way to modernize without starting from scratch.
As more cities adopt green building codes and ESG reporting becomes standard, demand for smart building solutions is only going to grow. Being in this space now means being ready for a very connected future.
10. Smart home devices surpassed 1.5 billion units installed by early 2024.
The smart home is no longer just a trend—it’s a standard. With over 1.5 billion smart home devices installed, homes are now among the most connected spaces in the world.
These devices include everything from smart speakers and doorbells to light bulbs and security systems. Consumers love them because they’re easy to use, save time, and add a layer of comfort or protection.
But here’s what matters for businesses: customers expect devices to work together. If your light bulb doesn’t sync with Alexa or Google Home, you’re already at a disadvantage. Compatibility is key.
There’s also a growing interest in privacy and control.
Many users want devices that process data locally, without sending everything to the cloud. That opens up a space for products focused on security and data ownership.
If you’re an entrepreneur or innovator, focus on solving daily pain points. Can you make a system that shuts off all unused lights automatically when people leave?
Can you create a smart appliance that adapts based on how a family lives?
Even in a crowded space, there’s room for simple, well-designed products that just work.
And because the install base is already so high, there’s a huge market for accessories, add-ons, and software that improves the smart home experience.
This is the age of intelligent living, and if you have a way to make home life smoother or smarter, you’ll find eager users ready to adopt your solution.
11. IoT devices in the oil & gas sector grew at a CAGR of 18% from 2020–2024.
Few industries benefit more from real-time data than oil and gas.
With operations that span remote locations, hazardous environments, and high-cost equipment, it’s no surprise that the oil and gas sector has embraced IoT—and it’s growing fast, at a compound annual growth rate of 18% over four years.
This growth is fueled by the need for safety, efficiency, and predictive insights. Sensors are being deployed on pipelines, drilling rigs, compressors, and storage tanks.
These devices detect leaks, measure pressure, track fuel levels, and even predict failures before they happen.
One major challenge in this sector is downtime. A single equipment failure can cost millions in lost production. That’s why predictive maintenance is one of the biggest use cases for IoT here.
By catching signs of wear or malfunction early, companies can plan maintenance during non-peak periods and avoid sudden shutdowns.
If you’re a tech founder or solution provider, this space needs ruggedized, intrinsically safe devices that can withstand extreme conditions. There’s also demand for satellite communication support, since many assets are located in remote, off-grid areas.
Software also plays a big role. Platforms that visualize field data, flag anomalies, and coordinate on-site teams are in high demand.
And there’s a growing need for cybersecurity tools tailored for industrial IoT, given the sensitivity of the infrastructure.
Oil and gas may be traditional, but its adoption of IoT is anything but old-school. With safety and profitability on the line, this sector continues to invest heavily in smart solutions.
12. In traffic systems, connected street lights and signals exceed 150 million globally.
Street lighting is one of the most widespread infrastructures in any city—and now it’s getting smarter.
Over 150 million connected street lights and traffic signals have been deployed globally, turning ordinary poles and signals into intelligent traffic managers.
These devices can do much more than light the way. They can adjust brightness based on movement or time of day, reducing energy waste. They can send alerts when bulbs are about to fail, cutting down maintenance costs.
And in some cases, they serve as platforms for additional sensors—air quality, sound levels, or even weather.
Connected traffic signals also adapt to flow. If sensors detect heavy congestion, they can automatically change light timing to ease backups. This reduces idling, which helps cut emissions and frustration.
The opportunity here lies in integration and optimization. If you’re working on city infrastructure, think about how your product can plug into existing streetlight networks.
Can your solution use light poles as mounting points for 5G, EV charging, or public Wi-Fi?
There’s also a big push toward energy-efficient cities. LED conversions paired with smart controls offer a huge ROI for municipalities.
If you provide services around this—like lighting-as-a-service or data analytics for smart cities—you’re solving real, budget-sensitive problems.
The future of cities is built on intelligent infrastructure, and street lighting is one of the easiest, most cost-effective entry points. Build something that adds value here, and cities will listen.
13. Around 80 million connected public transport vehicles are using IoT solutions.
Buses, trains, ferries, and even trams are getting smarter, with over 80 million connected public transport vehicles already running IoT systems. From onboard diagnostics to passenger tracking, these systems help transport agencies run more smoothly and safely.
In a modern fleet, every vehicle is a data center. IoT systems can track speed, fuel use, location, door activity, and maintenance needs.
This data isn’t just for logs—it’s used to improve routes, reduce costs, and enhance passenger experiences.
Real-time vehicle tracking, for instance, allows commuters to see exactly when their ride will arrive.
That level of transparency builds trust and increases public transport usage. Meanwhile, predictive maintenance helps prevent breakdowns that cause delays.
If you’re building in this space, think about interoperability. Transit agencies use a mix of vehicles and systems, and your product will need to work across that variety.
Lightweight sensors, durable communication modules, and easy-to-use software are all in high demand.
Also consider accessibility and inclusion. Smart systems that provide audio alerts, step counters, or wheelchair detection can help cities better serve all residents. These features aren’t just valuable—they’re often required by law.
Public transport is essential to sustainable cities, and IoT is how it becomes more reliable, responsive, and rider-friendly. There’s a clear path for innovation here—and plenty of vehicles to support it.
14. IoT-based predictive maintenance in energy reduced downtime by 30% in 2023.
One of the most powerful uses of IoT in the energy sector is predictive maintenance. And it’s not just theoretical—it’s working. In 2023 alone, companies using IoT-based predictive systems reduced equipment downtime by an average of 30%.
That’s a game-changer. Downtime is incredibly expensive, whether it’s a wind turbine, power station, or transformer.
Predictive maintenance uses sensors to monitor equipment conditions in real time—temperature, vibration, voltage, and more. When patterns suggest something is wearing out, alerts go out before a failure happens.
The savings here are both direct and indirect. You avoid emergency repairs, reduce labor costs, and minimize lost production.
But you also extend the life of expensive assets and keep customer satisfaction high.
For tech companies, there’s strong demand for tools that turn sensor data into useful insights. That could be AI models that predict failure windows, or dashboards that make it easy for technicians to know what to fix and when.
There’s also a need for better data pipelines. Energy companies often deal with outdated systems or disconnected data silos. If you can create solutions that centralize and clean this data for predictive models, you’re adding serious value.
Predictive maintenance isn’t just another buzzword. It’s an active area of investment with clear ROI—and a great space to build in.
15. Over 60% of city governments deployed IoT for traffic flow optimization by 2024.
More than half of all cities are now using IoT systems to improve traffic flow—and this number is growing fast. By 2024, over 60% of city governments had already deployed IoT solutions for this purpose.
Traffic flow optimization includes a wide range of tools: real-time vehicle counting, adaptive signal control, connected signage, and even license plate recognition.
These systems help reduce congestion, improve safety, and make public transportation more predictable.
For cities, the benefits are huge. Better traffic flow reduces travel time, cuts emissions, and lowers stress for drivers and commuters alike. But implementing these systems isn’t always easy.
Many cities struggle with legacy infrastructure, limited budgets, or data privacy concerns.
That’s where your opportunity lies. If you can offer modular, scalable, and cost-effective solutions that improve flow without a full infrastructure overhaul, you’ll stand out.
Mobile-based analytics tools, AI-powered optimization engines, or interoperable sensor networks are all in demand.
There’s also growing interest in citizen-facing platforms. Apps that help commuters pick the fastest route based on real-time traffic data can improve adoption and trust in smart city systems.
Traffic optimization is no longer optional—it’s essential for growing urban areas. If you can help cities move better, your tech will be welcomed with open arms.
16. The global water management sector has over 200 million IoT sensors in use.
Water is one of the world’s most precious resources—and it’s being closely watched. With over 200 million IoT sensors installed globally, water management is one of the fastest-growing areas for connected technology.
These sensors are deployed in reservoirs, pipelines, treatment plants, and agricultural fields.
They measure flow rates, detect leaks, monitor water quality, and even check chemical levels in real-time.
Why does this matter? Because water loss is a huge problem. In some regions, up to 30% of water is lost due to leaks or theft before it ever reaches a tap. IoT sensors help detect these losses early, saving money and conserving resources.
If you’re thinking about entering this space, focus on systems that deliver actionable insights. Raw data isn’t enough. Cities and utilities need alerts when something goes wrong and recommendations on what to do next.
Smart dashboards, mobile alerts, and AI-based decision tools are in demand.
There’s also a growing market in agriculture. Farmers are using soil moisture sensors, weather-integrated irrigation systems, and water flow controllers to maximize crop yield while reducing waste. Tools that integrate easily with existing irrigation systems are especially popular.
Regulatory compliance is another key driver. Governments are increasing water quality standards, and IoT helps ensure consistent monitoring and reporting.
If you offer a product that simplifies compliance, you’ll find a receptive audience.
Water is essential—and managing it wisely is non-negotiable. That’s why this sector will continue to grow, creating new chances for innovation and investment.
17. Energy grid IoT installations have grown by 25% annually since 2020.
The energy grid—the backbone of modern civilization—is undergoing a digital transformation. Since 2020, IoT device installations in energy grids have been growing at a steady 25% each year.
Why? Because grids are no longer simple one-way systems. With renewable energy, electric vehicles, and battery storage entering the mix, energy needs to be actively managed in both directions. IoT makes that possible.
These connected devices monitor voltage, detect faults, balance loads, and help grids respond quickly to changing conditions. They also enable remote control of substations, switches, and transformers—saving time and reducing risk.
For grid operators, these tools are essential. But they also need platforms that can aggregate and interpret all that data in real-time.
That’s a big opportunity for software developers and platform providers who can create solutions that are scalable, secure, and easy to use.
There’s also an opportunity in edge computing. Energy companies can’t afford lag or data loss, especially during peak usage.
Local processing that filters and summarizes data before sending it to the cloud can add major value.
And then there’s cybersecurity. As grids become more connected, they also become more vulnerable. If you’re in cybersecurity, this is your moment. Tools that protect energy infrastructure are urgently needed and heavily funded.
A smarter grid means a more stable, efficient, and resilient power system. If you can build something that helps achieve that, you’ll be solving problems that truly matter.
18. Over 500 million environmental monitoring IoT devices are deployed worldwide.
Our environment is changing—and IoT devices are helping us keep an eye on it. More than 500 million IoT sensors are already in place globally to monitor everything from air quality to weather patterns.
These devices are used by governments, researchers, environmental groups, and even individuals. They measure pollution levels, carbon emissions, noise, temperature, radiation, and humidity in real-time.
That data is used for everything from disaster response to long-term climate planning.
Cities are one of the biggest adopters. Air quality sensors mounted on street lights or buses can help identify pollution hotspots and guide public health policy. Some cities even use this data to adjust traffic flow or inform the public about dangerous conditions.
If you’re developing in this space, think about accessibility. Make sensors that are affordable, easy to install, and battery-efficient.
There’s also a strong need for platforms that collect, clean, and share data with multiple stakeholders.
Educational and nonprofit markets are growing too. Schools, environmental groups, and citizen science programs want affordable tools that allow people to measure and understand their surroundings.
If you can deliver reliability with simplicity, you’ll find an eager user base.
As climate challenges increase, monitoring will only become more important. The more accurately we can measure the environment, the better we can protect it—and the more valuable your solution will be.
19. Public safety networks use over 400 million IoT-enabled emergency response devices.
When lives are on the line, speed and information matter most. That’s why over 400 million IoT-enabled devices are now used in public safety networks around the world.
These include wearable trackers for firefighters, GPS systems for ambulances, drones for search-and-rescue, and sensors that detect gunshots, floods, or hazardous chemicals. In every case, they help first responders act faster, safer, and smarter.
The value here is in context. A smoke detector alone is useful.
But a network of devices that identifies the exact location of a fire, alerts nearby responders, and provides real-time building data? That’s transformative.
If you’re building tools for this sector, focus on rugged design, low-latency communication, and interoperability with existing emergency infrastructure.
Your product might be used in extreme conditions, so it needs to be durable and dependable.
There’s also a growing need for data visualization. Emergency command centers need live maps, color-coded alerts, and AI tools that help prioritize incidents. If you can turn chaotic data into clear decisions, your product becomes a mission-critical tool.
In public safety, reliability is everything. This is a sector where your innovation doesn’t just create convenience—it can save lives. And that’s a mission worth building for.
20. Smart parking systems reached 120 million installations globally by 2023.
Finding a parking spot is frustrating—and smart cities are trying to fix that with technology.
By 2023, over 120 million smart parking systems had been installed worldwide, from sensors in city streets to entire connected parking garages.
These systems detect available spots in real-time, guide drivers to them, and sometimes even enable automatic payment. They’re reducing congestion, lowering emissions, and saving drivers time.
For municipalities, smart parking means better use of space and more efficient enforcement. Some systems can dynamically adjust pricing based on demand, helping spread traffic across the day.
If you’re working in this area, think about how your solution improves accuracy and user experience. Can your system avoid false positives when a motorcycle parks in a spot? Does your app make it easy for drivers to pay and get directions?
Also think beyond just drivers. Parking data can help cities plan new bike lanes, reduce idling in sensitive areas, or manage curb space for deliveries.
If your platform integrates with these broader urban planning goals, you’ll offer more than just convenience—you’ll provide strategy.
Smart parking is a perfect entry point into smart cities. It’s tangible, highly visible, and easy to understand. If you can make parking painless, you’ll earn fans—and contracts.
21. IoT in the logistics sector surpassed 1 billion device installations in 2024.
Moving goods from place to place used to be all about trucks, warehouses, and clipboards. Today, it’s about data—and over 1 billion IoT devices are now helping the logistics industry run smarter.
These devices are everywhere: GPS trackers in vehicles, RFID tags on packages, temperature sensors in refrigerated containers, and even motion detectors on pallets. The goal is full visibility—knowing where every item is, what condition it’s in, and when it will arrive.
For logistics companies, this means fewer lost shipments, faster routes, and better planning.
For customers, it means real-time tracking and reliable delivery. In a world that expects next-day shipping, IoT has become a must-have, not a nice-to-have.
If you’re building in this space, focus on interoperability. Logistics involves multiple players—warehouses, shipping companies, last-mile couriers. Your tech has to plug into all their systems without friction.
There’s also huge demand for predictive tools. Can your software spot a delay before it happens and suggest a backup plan?
Can it identify the most fuel-efficient routes or optimize warehouse layouts based on traffic patterns?
And don’t overlook the packaging itself. Smart labels that monitor temperature, shock, or humidity are a growing niche—especially for pharmaceuticals, electronics, and food.
Logistics is the lifeline of global commerce. If you can help make it more transparent, reliable, and efficient, you’ll have a valuable seat at the table.
22. Over 90% of new buildings in developed cities include IoT-based HVAC systems.
Comfort and efficiency now go hand-in-hand in modern architecture. In developed cities, more than 90% of newly constructed buildings are being equipped with IoT-powered HVAC systems.
Why? Because traditional heating and cooling systems waste energy. They run on static schedules, ignore room occupancy, and often overcompensate for weather.
IoT systems change that by using real-time data to control temperature, airflow, and humidity more precisely.
Sensors track when rooms are used, how many people are inside, and even the angle of sunlight coming through windows.
That information lets HVAC systems adjust automatically, saving energy without sacrificing comfort.
If you’re creating tech in this space, think about user control. Can a building manager override the system easily? Can a tenant fine-tune their office zone through an app? The best systems balance automation with usability.
There’s also opportunity in retrofitting. Older buildings may not support full smart systems, but they can still benefit from sensor-based upgrades. Creating plug-and-play devices that work with legacy systems is a smart way in.
And don’t forget integration. Your HVAC solution should connect smoothly with lighting, access control, and occupancy tools. Buildings want unified systems—not a mess of separate apps.
This trend is growing fast, driven by both economics and regulations. If you’re solving problems in smart climate control, your tech is going to be in high demand.
23. Renewable energy installations use over 300 million IoT sensors worldwide.
Solar, wind, and hydro installations aren’t just about generating power—they’re about managing variability.
That’s why renewable energy now relies on more than 300 million IoT sensors to stay efficient, stable, and safe.
Unlike fossil fuel plants, renewables are intermittent. Clouds reduce solar output. Wind can be too strong or too weak. IoT sensors measure these conditions constantly, adjusting systems in real-time to keep production consistent and safe.
For example, wind turbines use sensors to monitor blade speed, torque, and vibration.
Solar panels track temperature and light intensity. Inverters monitor grid output and detect imbalances. All of this ensures maximum energy yield and grid stability.
If you’re working on renewable energy solutions, consider focusing on edge analytics. Remote solar farms and offshore wind arrays don’t always have strong internet connections. Devices that can process data locally and report summaries are incredibly useful.
Another opportunity is in predictive performance. By analyzing past output and current weather, your software can forecast energy generation and help grid operators plan accordingly.
And there’s room to innovate in O&M (operations and maintenance).
Systems that spot a dip in output and pinpoint the issue—dirty panels, a failing part, or cloud cover—can save huge amounts in downtime.
Clean energy is the future, and connected tech is what will make it reliable and scalable. If you’re in this space, you’re contributing to one of the most important shifts of our time.
24. IoT-based traffic enforcement cameras exceed 200 million units globally.
Traffic enforcement is no longer just about cops and tickets—it’s about sensors and automation. Over 200 million IoT-powered traffic cameras are now in use around the world, helping enforce laws and improve road safety.
These cameras do more than catch speeders. They detect red-light violations, illegal turns, wrong-way driving, and more.
Many are connected to AI systems that automatically flag dangerous behavior or generate citations without human intervention.
This trend helps cities in two big ways. First, it improves safety—automated enforcement reduces accidents. Second, it helps with congestion—drivers behave better when they know the system is watching.
If you’re building in this space, the challenge is accuracy. False positives (or missed infractions) cause public pushback.
That means your detection algorithms have to be extremely reliable and tested under different lighting, weather, and traffic conditions.
There’s also opportunity in data integration. Can your system feed into broader traffic platforms? Can it provide real-time alerts to emergency services or integrate with smart lights to prevent accidents before they happen?
Privacy is another concern. Systems that blur faces, avoid unnecessary data collection, and support compliance with local laws will be more trusted and widely adopted.
Traffic enforcement isn’t about punishment—it’s about prevention. If your tech can help make roads safer in a smart, fair way, you’re building something cities want and need.
25. Smart grid sensors cover more than 75% of urban energy networks.
The modern city runs on a grid that thinks for itself. Today, over 75% of urban energy networks are outfitted with smart grid sensors that monitor, balance, and optimize power delivery in real-time.
These sensors check voltage levels, spot outages, detect overloads, and even predict equipment failure. They turn the traditional “one-way” grid into a two-way, self-healing system that responds instantly to changing demand and supply.
This is essential in cities where energy use fluctuates constantly. Think about air conditioners switching on during a heat wave, or EVs plugging in at night. Without smart sensors, grids would struggle to keep up or might fail entirely.
For innovators, the key area of growth is orchestration. How do these sensors talk to each other? How does the data they produce turn into clear, automated decisions? Platforms that manage this orchestration in real-time are highly valuable.
Cybersecurity is also top of mind. As more of the grid goes online, the risk of attacks increases. Securing device-to-grid communication, detecting unusual patterns, and isolating breaches are all opportunities for innovation.
Urban planners and utilities are looking for partners who understand both technology and power systems. If you bring both to the table, you’re not just another vendor—you’re a strategic asset.
26. IoT installations in mining and heavy industries surpassed 250 million devices.
Mining and heavy industries have traditionally been slower to adopt new technologies, but that’s changing rapidly.
As of now, over 250 million IoT devices are in use across mining, metallurgy, construction, and related sectors.
These environments are high-risk and high-cost, making real-time monitoring essential. IoT devices are used to track worker safety, monitor machinery, predict breakdowns, and even check structural integrity in underground shafts or tunnels.
In mining, sensors are placed on equipment to measure vibration, temperature, and pressure.
This helps avoid failures that could cause injury or halt production. In construction, IoT is used to monitor crane operation, fuel usage, or asset location across massive sites.
The actionable insight here? Automation. These industries are leaning heavily on autonomous operations. From self-driving haul trucks to robotic drilling systems, IoT is what connects the machines and keeps them working together safely.
If you’re building tech for these spaces, ruggedness is key.
Devices must handle dust, vibration, heat, and often, poor network connectivity. There’s a growing demand for mesh networks and edge devices that don’t rely on constant cloud access.
There’s also opportunity in workforce safety. Wearables that detect fatigue, gas exposure, or proximity to hazardous zones can prevent serious accidents. Tools that track lone workers in remote areas are especially valued.
This sector may seem traditional, but it’s entering a high-tech renaissance—and if your product can make things safer, faster, or more precise, you’ll find eager buyers.
27. Smart fire detection systems have over 80 million devices connected worldwide.
Fire safety has always been a critical concern, but now it’s getting smarter. More than 80 million connected fire detection devices are in use globally, offering more than just alarms—they deliver data.
Traditional smoke detectors react once a fire starts. Smart systems aim to prevent fires or catch early signs before flames even appear.
IoT sensors can detect rising temperatures, changes in air composition, gas leaks, and unusual equipment behavior in real-time.
These systems are especially useful in high-risk environments—warehouses, hospitals, factories, and data centers—where seconds matter and early detection can save millions in losses.
For developers and inventors, the key is integration. Can your device talk to the building’s HVAC system to shut off air circulation? Can it notify emergency services and share the location instantly?
The more your product fits into a broader safety ecosystem, the more valuable it becomes.
There’s also strong demand for devices that reduce false alarms. High-traffic areas like schools or hotels need smart detectors that can distinguish between cooking smoke and an actual threat.
Smart fire systems are also seeing adoption in residential markets, especially luxury housing and high-rise apartments.
Builders want advanced systems that are reliable, easy to manage remotely, and require minimal maintenance.
Fire safety isn’t just about compliance—it’s about prevention, precision, and peace of mind. IoT takes it to the next level, and if you build in this space, you’re offering more than convenience—you’re offering protection.
28. Connected waste management systems grew by 40% YoY between 2022 and 2024.
Nobody likes to think about garbage—but smart cities are turning even waste collection into a data-driven process. Between 2022 and 2024, connected waste management systems grew by a staggering 40% year-over-year.
Why the surge? Because smart bins, route optimization, and fill-level sensors help cities reduce costs, emissions, and overflow issues.
A bin that tells you when it’s full saves fuel and manpower. A route that adjusts dynamically avoids traffic and cuts down on carbon emissions.
This tech is being adopted by municipalities, universities, stadiums, airports, and large residential complexes.
And the potential goes beyond just trash. Smart systems can monitor recycling, composting, and hazardous waste too.
If you’re looking to innovate here, focus on simplicity and durability. Devices need long battery life, tamper resistance, and easy installation. Solar-powered sensors are increasingly popular in outdoor settings.
Software is another key area. Cities need platforms to visualize bin status, generate optimized routes, and predict demand. Adding alerts for maintenance or contamination can set your product apart.
There’s even room for AI to analyze waste composition over time and recommend changes in purchasing or waste sorting behavior.
Sustainable cities are the future—and that includes smarter ways to manage what we throw away. If your tech helps reduce costs and improve cleanliness, adoption will follow.
29. IoT in railway systems includes over 100 million sensors and devices.
Trains have always been a critical part of moving people and goods. Now, they’re becoming a key focus for IoT, with over 100 million sensors and devices deployed across global rail systems.
These devices cover a wide range of applications—track health monitoring, rolling stock diagnostics, signal systems, passenger counting, and more. The goal is simple: improve reliability, efficiency, and safety.
Track sensors, for instance, can detect wear and tear or thermal expansion.
Train-mounted sensors monitor speed, engine health, and brake systems. Passenger flow sensors help optimize schedules and avoid overcrowding.
For companies in the railway space, IoT creates new revenue opportunities in predictive maintenance, passenger analytics, and energy management. Real-time data helps reduce breakdowns, optimize routes, and avoid unnecessary delays.
If you’re entering this space, focus on interoperability with legacy rail infrastructure.
Rail systems vary widely between regions, so your solution needs to be flexible and standards-compliant.
There’s also growing interest in passenger-facing applications. Real-time train arrival updates, seat availability indicators, and climate control systems that respond to occupancy levels all enhance rider experience.
The railway sector is massive, slow-moving, and full of potential. If you can help railways become safer, more efficient, or more comfortable, your tech could go the distance—literally.
30. Over 2.5 billion IoT devices are expected in public infrastructure by 2025.
We’re entering a new era of cities—where roads, buildings, lights, and pipes all talk to each other. By 2025, over 2.5 billion IoT devices will be installed in public infrastructure globally. That includes everything from traffic lights and bridges to water mains and street signs.
This mass deployment is driven by the need for smarter, more sustainable, and more responsive cities.
Public infrastructure that monitors itself can prevent failures, reduce costs, and improve quality of life.
Bridges can use sensors to detect structural fatigue. Water systems can spot leaks the moment they begin.
Roads can measure wear, temperature, and traffic load to guide maintenance schedules.
For startups and developers, this is one of the broadest and most promising spaces to play in. Whatever you build—whether it’s sensors, communication networks, or analytics platforms—there’s a public use for it.
The key is scale. Can your system manage thousands of connected devices reliably?
Can it be managed remotely with minimal training? Cities want tools that work well and don’t require an army of technicians.
There’s also increasing attention on climate resilience. Infrastructure must now withstand more extreme weather, so systems that offer early warnings or real-time adaptation (like flood gates or snow sensors) are in high demand.
As governments invest in smart infrastructure through grants, green bonds, and public-private partnerships, the runway is long and well-funded. If you want to shape the cities of tomorrow, public IoT is where the action is.
wrapping it up
From energy and traffic to mining and water management, IoT is no longer a futuristic idea—it’s already here, shaping how the world works behind the scenes. These 30 powerful stats aren’t just numbers—they’re signals of where opportunities are exploding.
