Armis
OT, IoT and medical device security with passive monitoring
- #6 of 10 in best OT security platforms
- Contact for pricing
- Web
Ranked 6 of 10 in best OT security platforms
Passive OT and IoT monitoring offered as SaaS or on-prem, with framework mapping to IEC 62443, NIST CSF and ISO 27001. Its scope also covers IT and medical assets, so OT-only buyers should check the OT module.
Best for Passive OT and IoT monitoring with SaaS or on-prem choice
About Armis
Armis Centrix for OT/IoT Security is listed as a SaaS product and as an on-prem product, and the vendor site has a separate page for each. The SaaS page describes discovery of OT, IoT and ICS assets. It says the platform monitors network traffic passively and uses vendor-approved industrial protocols for safe active queries. Device criticality and operational context are used to rank vulnerabilities, so teams can focus on the PLCs that run production.
The OT page maps asset data and controls to IEC 62443, NIST CSF, HIPAA and ISO 27001, and it generates audit trails and reports. The vendor's compliance list also names NIS2 and MITRE ATT&CK for ICS. Threat research comes from Armis Labs. The wider Centrix platform also covers asset management, medical device security and vulnerability work, so an OT-only buyer should check the OT module on its own.
Key features
- Passive OT and IoT discovery
- IEC 62443 framework mapping
- SaaS and on-prem deployment
- Audit trails and reports
- Armis Labs research
Strengths
- Passive network monitoring of OT and IoT assets
- Framework mapping to IEC 62443, NIST CSF and ISO 27001
- SaaS and on-prem versions of the OT and IoT product
Limits
- Scope spans IT, medical and OT, so it is broader than OT-only tools
- No list prices on the pages read
Where Armis ranks
How Armis compares
| Product | Score | Price | Platforms | Delivery model | Standards and certifications | Threat intelligence |
|---|---|---|---|---|---|---|
#4 Tenable One OT Exposure | 86.0 | Contact for pricing | WebSelf-hosted | Cloud, on-premises or hybrid | IEC 62443, NERC CIP, NIST, ISO 27001 | Tenable Research intelligence |
#5 TXOne Networks | 84.5 | Contact for pricing | WindowsLinuxSelf-hosted | Endpoint software and network hardware | Not stated on the home page | Shared threat intelligence across products |
| #6Armis | 84.0 | Contact for pricing | Web | SaaS or on-prem Centrix versions | IEC 62443, NIST CSF, ISO 27001, NIS2 | Armis Labs research |
#7 Fortinet OT Security Platform | 83.5 | Contact for pricing | Web | Appliances and FortiGuard subscriptions | IEC 62443-4-1 ML2 certification | FortiGuard industrial subscriptions |
#8 Microsoft Defender for IoT | 81.5 | Subscription | WebSelf-hosted | Azure cloud with on-premises options | Not stated in the docs read | Not stated in the docs read |
The full comparison table for best OT security platforms has all 10 products.
Alternatives to Armis
All 9 alternatives- DragosOT and xOT cybersecurity with threat intelligence and managed services
Nozomi NetworksOT and IoT security with asset visibility, threat detection and AI analysis
ClarotyCyber-physical systems security for industrial, healthcare and commercial sites- Tenable One OT ExposureOT asset discovery and exposure management in the Tenable One platform
- TXOne NetworksAlso runs on Windows, Linux.
- Fortinet OT Security PlatformOT network segmentation and threat protection from Fortinet firewalls and switches
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Questions about Armis
- Is Armis free?
- Armis is a paid product (contact for pricing). Quote-based; listed as SaaS and on-prem versions.
- Is Armis open source?
- No. Armis is proprietary software; its source code is not public.
- Which platforms does Armis support?
- Armis is available on: Web.
- What is Armis best for?
- Passive OT and IoT monitoring with SaaS or on-prem choice. In our ranking of OT security platforms it is number 6 of 10 with a score of 84.0.
- What are the best alternatives to Armis?
- The highest-ranked alternatives on listme.name are Dragos, Nozomi Networks, Claroty, Tenable One OT Exposure.
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