The 10 Coolest IoT Security Companies: The 2025 Internet Of Things 50
Here are the 10 coolest and most noteworthy vendors who are innovating and making big moves within the IoT security space.
While IoT vendors are creating a bevy of new opportunities and capabilities for connecting the digital and physical worlds, doing so has created the need for a new class of companies that are dedicated to protecting such infrastructure from bad actors.
These IoT security companies range from pure-play vendors, like Armis and Finite State, to those focused mainly on operational technology environments, like Nozomi Networks and Claroty. There are also larger security vendors that have introduced their own capabilities for protecting IoT applications such as Palo Alto Networks.
There are also vendors like Rhombus and Verkada who focus on physical security by combining cameras and sensors with advanced IoT and AI capabilities.
Many of these vendors have announced major developments in the past year, whether those are new funding rounds, new products or new acquisitions.
For the 2025 Internet of Things 50, CRN picked these and other companies it deemed the most noteworthy vendors within the IoT security space. What follows are descriptions of each company, which also includes TXOne Networks and Xona Systems.
Armis
Yevgeny Dibrov
Co-Founder, CEO
After disclosing that it had raised a $200 million Series D funding round from investors in the fall, San Francisco-based Armis said in February that it is integrating Nvidia’s cybersecurity AI platform into the Armis Centrix cyber exposure management platform to protect critical infrastructure without impacting performance.
Claroty
Yaniv Vardi
CEO
After securing $100 million in new funding from investors last year, New York-based Claroty added the venture arms of Bosch and Chevron as new backers. The company also revealed the next evolution of its cyber-physical systems protection platform with a wide range of capabilities that include threat detection, secure access and exposure management.
Finite State
Matt Wyckhouse
Founder, CEO
Finite State, a developer of software risk management offerings for connected devices, last year raised a $20 million funding round to accelerate product development and sales efforts. The Columbus, Ohio-based company then inked a deal to acquire software supply chain security vendor MergeBase to protect what it says is “every aspect of the software development life cycle.”
Nozomi Networks
Edgard Capdevielle
President, CEO
Combining network and endpoint visibility with threat detection and AI-powered analysis to protect critical infrastructure, Nozomi Networks said last year that it had raised a $100 million funding round from Mitsubishi Electric, Schneider Electric, Honeywell and Johnson Controls, among others, before unveiling a slew of partnerships.
Palo Alto Networks
Nikesh Arora
Chairman, CEO
Palo Alto Networks is protecting IoT devices and operational technology environments by using machine learning and AI to detect, classify, segment and defend assets. In October, the Santa Clara, Calif.-based company unveiled a new operational technology security offering that includes risk-based guided virtual patching and a suite of ruggedized, machine learning-powered firewalls.
Rhombus
Garrett Larsson
Co-Founder, CEO
Rhombus is modernizing physical security by combining plug-and-play cameras and sensors with advanced analytics for stayingahead of security threats and understanding how people use spaces. The Sacramento, Calif.-based company in July said that it had raised a $45 million Series C funding round to increase investments in its partner and developer ecosystem, among other things.
Shield-IoT
Udi Solomon
CEO
Shield-IoT is protecting cellular IoT networks with an agentless IoT cybersecurity platform that “offers operational visibility, threat management and compliance across any SIM-connected device or application at unlimited scale. The Kfar Saba, Israel-based company said its cellular security capabilities can be used by IoT connectivity providers to open new revenue streams.
TXOne Networks
Terence Liu
CEO
Founded as a joint venture between Moxa and Trend Micro, TXOne Networks is safeguarding industrial control systems and operational technology environments with zero-trust offerings for endpoint protection, security inspection and network defense. The Taipei, Taiwan-based company said in May that it had raised a $51 million Series B funding round from investors, including Taiwanese electronics giant Pegatron.
Verkada Security
Filip Kaliszan
Co-Founder, CEO
Verkada aims to make physical security easy to scale through the combination of its cloud-based platform with wireless gateways, cameras, sensors and access control modules. The San Mateo, Calif.-based company said in February that it had raised a $200 million Series E funding round at a $4.5 billion valuation to add additional AI features into its physical security platform.
Xona Systems
Bill Moore
Founder, CEO
After raising an $18 million funding round last year to accelerate product development and grow strategic alliances, Annapolis, Md.-based Xona Systems in January marked the launch of its new secure access management platform, which provides simple user access to critical systems without requiring the connection of insecure user endpoints.
