# Tenable OT Security alternatives: what AI models name instead, November 2026

Gane Index, November 2026 Edition. 216 of the 252 answers in the 1 category where Tenable OT Security holds a standing named it neither first nor as an alternative; these are the first choices those answers made. Page: https://www.gane.ai/index/it/vendors/tenable-ot-security/alternatives

## Named instead, most often (every category and segment added)

- Microsoft Defender for IoT: 47
- Claroty xDome: 38
- Nozomi Networks Guardian: 19
- Armis Centrix: 12
- Fortinet OT Security Platform: 12
- Dragos Platform: 10

## OT and IoT security

**Small business**: 72 of 84 answers did not name Tenable OT Security (Tenable OT Security is #8 of 11 at 0%).

- Microsoft Defender for IoT: first choice in 23 of those 72
- Fortinet OT Security Platform: first choice in 6 of those 72
- Armis Centrix: first choice in 5 of those 72
- Nozomi Networks Guardian: first choice in 5 of those 72
- Claroty xDome: first choice in 3 of those 72
- Acreto: first choice in 2 of those 72
- Cisco Cyber Vision: first choice in 2 of those 72
- Armis Centrix for OT/IoT Security: first choice in 1 of those 72

**Mid-market**: 71 of 84 answers did not name Tenable OT Security (Tenable OT Security is #6 of 11 at 2%).

- Claroty xDome: first choice in 15 of those 71
- Microsoft Defender for IoT: first choice in 14 of those 71
- Nozomi Networks Guardian: first choice in 6 of those 71
- Dragos Platform: first choice in 5 of those 71
- Armis Centrix: first choice in 2 of those 71
- Fortinet OT Security Platform: first choice in 2 of those 71
- Palo Alto Networks OT Security: first choice in 2 of those 71
- Suricata: first choice in 2 of those 71

**Enterprise**: 73 of 84 answers did not name Tenable OT Security (Tenable OT Security is #9 of 9 at 0%).

- Claroty xDome: first choice in 20 of those 73
- Microsoft Defender for IoT: first choice in 10 of those 73
- Nozomi Networks Guardian: first choice in 8 of those 73
- Armis Centrix: first choice in 5 of those 73
- Dragos Platform: first choice in 5 of those 73
- Fortinet OT Security Platform: first choice in 4 of those 73
- Palo Alto Networks OT Security: first choice in 2 of those 73
- Access Gate: first choice in 1 of those 73

Published under CC BY 4.0. The output is the models' output; nothing here is a recommendation by the index.