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Top 4 IoT Operating Systems Companies Under $1M Revenue (September 2026)

As of September 2026, Latka tracks 4 IoT operating systems companies under $1M in annual revenue. They have combined revenues of $2M and employ 51 people. They have raised $460K.

Every company below sells IoT operating systems to other businesses and is ranked by its most recent annual revenue. Revenue, funding, headcount and customer figures come from CEO interviews on the Latka podcast, public company filings, and Latka estimates where a company has not disclosed a number.

What IoT Operating Systems Companies do

IoT Operating Systems (IoT OS) are specialized operating systems designed for Internet of Things (IoT) devices, enabling them to connect, communicate, and operate effectively within networks. These operating systems cater to the unique requirements of IoT hardware, focusing on lightweight performance, efficient resource management, and robust security features. They facilitate the interaction of numerous devices, allowing them to collect and share data seamlessly. Common use cases for IoT Operating Systems include smart home devices, industrial automation, wearables, and smart city applications. Features typically found in IoT OS include security protocols, device management, connectivity options, and support for various communication standards. The primary users of these systems include developers, IT professionals, and companies focused on deploying IoT solutions for specific applications and environments.

Companies
4
Revenue
$2M
Funding
$460K
Employees
51

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Top IoT Operating Systems Companies Under $1M Revenue

Showing 4 of 4 companies ranked by annual revenue.

1Thermosphr logo
Thermosphr

Berlin, Germany

Thermosphr is a revolutionary operating system for thermal management in commercial buildings. We use a unique proprietary technology, result of years of research in thermal optimization and data science, which simulates and predicts building thermal behavior. Our SaaS plugs into any BMS and optimizes heating and cooling equipment settings (HVAC) in real time for maximum energy and cost efficiency. Our solution shows savings >30% within days, at no upfront cost, with continuous improvement. We are faster, more transparent and more performant than any solution available on the market! Thermosphr is bringing breakthrough thermal engineering technologies to the building industry, for more sustainable and profitable real estate.

Revenue
$809.4K
Year founded
2020
Team size
19
2Toit logo
Toit

Aarhus, Middle Jutland, Denmark

Toit is founded by industry veterans eager to modernize software development for the Internet of Things. We care about performance, robustness, and developer ergonomics and we believe it is time to significantly improve the way software for small network-connected devices is developed, deployed, and maintained. Toit is an IoT ecosystem that includes a virtual machine, a high-level programming language, and management tools that make programming and managing ESP32-based devices easy and secure. With an investment of 1000 lines of code only in the high-level Toit language, you will reap the benefits of full sandboxing and real multi-application running on your device. Our platform is optimized so you can update the whole system or only individual apps as often as you need, even on a shaky connection. With us, you can even consider running your devices on batteries. Give Toit a try by signing up at toit.io.

Revenue
$550K
Year founded
2018
Team size
5
3Flott HQ logo
Flott HQ

United States

AI-native operating system for vehicle fleet management

Revenue
$330K
Year founded
2025
Team size
3
4DarkHorse logo
DarkHorse

Menlo Park, California, United States

DarkHorse is an automated sports operating system that provides integrated vision and IoT-SaaS solutions.

Revenue
$300K
Year founded
2019
Funding
$460K
Team size
24

Frequently asked questions about IoT Operating Systems Companies Under $1M Revenue

How many IoT operating systems companies under $1M in annual revenue are there?

Latka tracks 4 IoT operating systems companies under $1M in annual revenue. Together they generate $2M in annual revenue and employ 51 people.

Which IoT operating systems company under $1M in annual revenue is the largest?

Thermosphr is the largest, with $809.4K in annual revenue, founded in 2020.

How much revenue does a typical IoT operating systems company under $1M in annual revenue make?

The average IoT operating systems company in this list makes $497.3K a year, across 4 companies with reported revenue.

Who are the leading IoT Operating systems vendors under $1M in annual revenue?

Ranked by annual revenue, the leaders are Thermosphr, Toit, Flott HQ and DarkHorse.

How much funding have IoT operating systems companies under $1M in annual revenue raised?

The 4 IoT operating systems companies under $1M in annual revenue tracked here have raised $460K in disclosed funding between them.

Related IoT Management Platforms categories

All IoT Management Platforms SaaS categoriesEvery category we track inside IoT Management Platforms, each ranked by revenue.Browse every SaaS industryThe full A-Z of SaaS categories Latka tracks, from IoT Operating to everything else.

Inclusion Criteria

- Must provide essential features for device management and connectivity. - Must include robust security measures such as encryption and authentication. - Should enable real-time data processing and communication between devices. - Must be designed for resource-constrained environments typical of IoT devices. - Should support various hardware architectures and communication protocols. - Not just a general-purpose OS; must be optimized specifically for IoT applications.