Top IoT Startups in the United States to Watch in 2026

Top IoT startups in the United States are reshaping how businesses operate, how cities function, and how people live their daily lives. In 2026, the Internet of Things is no longer a buzzword. It is the backbone of modern infrastructure across dozens of industries.

The numbers back this up. <According to recent market research, the global IoT market was valued at $902.6 billion in 2026 and is on track to reach $2 trillion by 2033, growing at a compound annual growth rate of 12.2%.> The United States sits at the center of this growth, holding roughly 20% of global IoT market share and housing some of the most well-funded, innovative startups working in the space today.

What makes 2026 particularly interesting is the convergence of IoT with artificial intelligence, 5G connectivity, and edge computing. Startups are no longer just connecting devices. They are building intelligent systems that learn, adapt, and act in real time. From predictive maintenance on factory floors to satellite-connected livestock sensors in remote farmland, the range of what is possible has exploded.

If you are an investor, entrepreneur, tech enthusiast, or enterprise buyer trying to understand where the market is heading, this article breaks down the most important IoT companies in the US you need to know about in 2026, organized by sector and backed by real data.

Why the US IoT Market Is Booming in 2026

Before diving into individual startups, it helps to understand the environment they are operating in.

Key market statistics for 2026:

• The U.S. IoT market is estimated to reach $342.5 billion, with a projected CAGR of 9.74% through 2029
• There are approximately 21.1 billion connected IoT devices worldwide as of 2025, growing 14% year over year
• 5G-enabled IoT chipsets reached $4.07 billion in 2024 and are forecast to hit $14.08 billion by 2030
• 85% of companies globally are running at least one Industrial IoT project right now
• Smart city spending is expected to exceed $300 billion in 2026 alone

The U.S. benefits from a dense ecosystem of venture capital, top research universities, and a regulatory environment that, despite some friction, still allows fast-moving startups to test and scale new technology. That combination has made American cities like San Francisco, Boston, Austin, and New York City genuine hubs for IoT innovation.

Top IoT Startups in the United States to Watch in 2026

Industrial IoT Startups Leading the Pack

TRACTIAN — Atlanta, Georgia

TRACTIAN is one of the most impressive industrial IoT startups operating in the U.S. right now. The company offers an AI-powered platform that attaches sensors to industrial machinery and uses machine learning to monitor equipment health in real time. The goal is simple: catch problems before they become shutdowns.

Manufacturers that implement IoT-based predictive maintenance solutions report as much as 52% fewer unplanned equipment failures. TRACTIAN sits squarely in that market, offering a solution that combines hardware sensors with a cloud analytics platform and an easy-to-use dashboard.

Why it matters in 2026: As industrial facilities push harder toward automation, the demand for predictive maintenance and real-time machine intelligence is only going to grow. TRACTIAN is already working with large industrial players across North and South America.

MachineMetrics — Northampton, Massachusetts

MachineMetrics is an industrial IoT analytics platform focused on manufacturing. The platform connects to existing factory equipment and pulls live production data, giving plant managers a clear view of machine utilization, downtime causes, and quality trends.

What sets MachineMetrics apart is how quickly it can be deployed. Most legacy manufacturers struggle to retrofit older machines for digital monitoring. MachineMetrics has built its product to bridge that gap without requiring expensive upgrades.

Key features:

• Real-time machine monitoring across entire production floors
• OEE (Overall Equipment Effectiveness) tracking
• Anomaly detection powered by machine learning
• Integration with ERP and MES systems

Triax Technologies — Norwalk, Connecticut

Triax Technologies focuses on worker safety and productivity in construction and industrial environments. Their connected worker IoT platform uses wearable sensors to track the location, proximity, and safety status of workers in real time across job sites.

Construction is one of the highest-risk industries in the U.S., and companies are under increasing pressure to meet safety compliance standards without slowing down project timelines. Triax has found a strong foothold in that space.

IoT Cybersecurity Startups the Industry Depends On

As the number of connected devices grows into the billions, so does the attack surface. IoT security is no longer optional, and a strong group of U.S. startups is building the infrastructure to keep those devices safe.

Armis — San Francisco, California

Armis has established itself as one of the most important IoT cybersecurity companies in the world. Their agentless platform discovers and monitors every device on a network — from IT infrastructure to OT systems to IoT endpoints — without requiring software installed on the devices themselves.

The company has raised over $837 million in funding, which reflects the scale of the problem it is solving. In a world where a single unmonitored sensor on a hospital network can serve as an entry point for a ransomware attack, Armis's approach to cyber exposure management has become critical infrastructure for enterprises across industries.

Sectors served: Healthcare, manufacturing, utilities, government, and financial services.

For more on how IoT security threats are evolving, CISA's IoT security guidance is an authoritative resource for organizations building connected device programs.

Nozomi Networks — San Francisco, California

Nozomi Networks protects operational technology (OT) and industrial control systems from cyber threats. Their platform provides real-time visibility into industrial networks and uses AI to detect anomalies and potential intrusions before they cause damage.

The company is particularly relevant in 2026 as critical infrastructure — water treatment, power grids, oil and gas pipelines — becomes increasingly connected and increasingly targeted. Nozomi's deep integration with industrial protocols makes it a go-to for organizations running complex physical operations.

Healthcare IoT Startups Transforming Patient Care

Connected health technology is one of the fastest-growing segments in the entire IoT market. U.S. startups in this space are using sensors, wearables, and real-time data pipelines to change how patients are monitored and how care is delivered.

Nanit — New York, New York

Nanit is a smart baby monitor platform that does far more than stream video. The system monitors infant breathing motion, sleep patterns, and developmental milestones using computer vision and machine learning. Parents receive actionable insights through a mobile app, and the platform tracks progress over time to surface meaningful trends.

Nanit represents the consumer end of medical IoT — a category that is growing fast as parents, caregivers, and individuals become more comfortable with health-tracking devices in the home. The company has earned strong reviews for both its hardware quality and its data-driven approach to infant care.

Oura — San Francisco, California

Oura makes a smart ring that tracks sleep, activity, heart rate variability, body temperature, and a range of physiological metrics that give users a clear picture of their health readiness. The device has gained significant traction among professional athletes, executives, and healthcare systems running remote patient monitoring programs.

In 2026, wearable IoT is the fastest-growing consumer category, with a projected CAGR of 22.73% through 2030. Oura sits at the premium end of that market, having raised $598.3 million and built partnerships with major health systems interested in using the ring's data for clinical research and remote monitoring.

Smart Home and Energy IoT Startups to Know

Span — San Francisco, California

Span makes smart electrical panels for homes — a product that sounds mundane until you realize how critical it is for the clean energy transition. A traditional circuit breaker panel gives homeowners no visibility and no control. Span's panel connects every circuit to a software platform, letting users see energy consumption in real time, manage loads remotely, and integrate cleanly with solar panels, battery storage systems, and EV chargers.

For homeowners navigating the shift to electrification, Span is one of the clearest examples of how IoT hardware and software together can create entirely new value from an existing piece of infrastructure.

Key capabilities:

• Real-time energy monitoring by circuit
• Remote load control via mobile app
• Native integration with solar and battery storage
• Automatic islanding during grid outages

Quilt — San Francisco, California

Quilt is a smart home climate startup taking on the HVAC industry with an AI-driven temperature control system that manages comfort on a room-by-room basis. The system uses occupancy awareness and predictive algorithms to optimize energy consumption without requiring homeowners to think much about it.

With residential energy costs continuing to climb, products like Quilt represent a meaningful intersection of consumer IoT and sustainability.

Agriculture and Smart City IoT Startups

Seeq — Seattle, Washington

Seeq is an analytics platform purpose-built for industrial process data. While it serves several verticals, it is particularly powerful in energy, chemicals, and food and beverage manufacturing — industries that generate enormous volumes of sensor data from complex continuous processes.

The platform lets engineers and data scientists extract insights from that data without writing code. For companies that have been collecting IoT data for years but struggling to act on it, Seeq closes the gap between raw sensor telemetry and operational decisions.

For a broader look at how industrial IoT and data analytics are converging, the Industrial Internet Consortium's technical resources provide solid context on standards and best practices in this space.

Hubble Network — Seattle, Washington

Hubble Network is doing something genuinely novel: building a satellite-based IoT network that gives any standard Bluetooth device global connectivity without needing cellular coverage. Their system enables IoT deployments in remote locations — agriculture, maritime, mining, environmental monitoring — where cellular infrastructure simply does not reach.

This is important because a significant percentage of industrial IoT assets are located in exactly those kinds of remote environments. Hubble is early in its trajectory, but the technology it is building addresses a real connectivity gap.

What Makes a Strong IoT Startup in 2026?

Across all of these companies, a few common traits stand out:

1. Hardware plus software: The best IoT startups are not just building devices or platforms. They are combining both into integrated systems that deliver value from day one.
2. AI and machine learning integration: Raw sensor data is only useful if you can act on it. Every leading startup in this space layers intelligence on top of connectivity.
3. Security by design: Given the stakes involved — especially in healthcare and critical infrastructure — startups that treat IoT security as a core feature rather than an afterthought are winning deals.
4. Edge computing capability: Sending every byte of data to the cloud is expensive and slow. The startups that can process data closer to the source — at the edge — have a meaningful competitive advantage.
5. Vertical focus: Rather than trying to build a horizontal platform that serves everyone, the most successful connected device companies in 2026 have gone deep on a specific industry and built genuine domain expertise.

Industries Being Transformed by IoT in the US

The impact of these startups is not evenly distributed. Certain industries are seeing faster, more profound change:

• Manufacturing: Smart factories using Industrial IoT (IIoT) sensors are reducing downtime, improving quality, and optimizing throughput. Manufacturing accounts for 24.4% of the entire IoT market in 2026.
• Healthcare: Remote patient monitoring, wearable diagnostics, and connected surgical tools are changing how care is delivered and documented.
• Energy: Smart grid technology, connected home energy systems, and grid-scale monitoring platforms are making energy distribution more efficient and more resilient.
• Agriculture: Precision agriculture platforms using IoT sensors for soil moisture, crop health, and equipment tracking are helping U.S. farmers squeeze more yield from every acre.
• Logistics: Fleet tracking, asset monitoring, cold chain sensors, and real-time supply chain visibility tools are now table stakes for major logistics operators.

Conclusion

The top IoT startups in the United States in 2026 share one thing in common: they are building technology that makes complex physical systems smarter, more efficient, and more responsive. From Armis securing billions of connected endpoints to Oura turning a ring on your finger into a health monitoring system, these companies are tackling real problems at real scale. The U.S. IoT market, on track to surpass $342 billion this year and growing steadily toward $545 billion by 2029, is creating space for dozens of well-funded startups to build category-defining businesses. Whether you are an investor scouting the next breakout company, an enterprise buyer evaluating solutions, or simply someone trying to understand where technology is headed, these are the IoT companies worth watching closely in 2026 and beyond.