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Alternatives

Best Fortinet OT Security Platform alternatives in 2026

Fortinet OT Security Platform is oT network segmentation and threat protection from Fortinet firewalls and switches. These 5 alternatives come from the same rankings, ordered by editorial score. Connected products carry a small, disclosed lift.

5 alternatives From best OT security platforms How we rank

Ranked alternatives

  1. 1

    Dragos

    OT and xOT specialist with its own threat intelligence, Managed OT Watch and incident response. The platform page gives no deployment model, so ask about sensors and hosting before comparing it with rivals.

    Best for Operators wanting managed OT detection and response

    WebContact for pricing

    93.0score
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  2. 2

    Nozomi Networks

    OT and IoT visibility with Guardian sensors, a Vantage console on-prem or in the cloud, and Mandiant-powered threat intelligence. Its feature set is split across many product names, which makes scoping harder.

    Best for Plants needing OT and IoT asset visibility

    WebSelf-hostedContact for pricing

    92.0score
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  3. 3

    Claroty

    Passive monitoring, asset inventory and exposure management for industrial, healthcare and commercial sites, on-premise or in the cloud. Its platform page does not list IEC 62443 or NERC CIP, so confirm standards during evaluation.

    Best for Industrial and healthcare sites needing passive discovery

    WebSelf-hostedContact for pricing

    91.0score
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  4. 4

    Tenable One OT Exposure

    Passive OT discovery and compliance mapping to IEC 62443, NERC CIP and NIST, with cloud, on-prem or hybrid deployment. It is part of a wider exposure platform, so it suits teams already using Tenable tools.

    Best for Teams unifying OT and IT exposure management

    WebSelf-hostedContact for pricing

    86.0score
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  5. 5

    Radiflow

    Specialist OT threat detection and risk management for ICS and SCADA, designed for in-house SOCs and MSSPs. Its product set is narrower than the platform vendors above, and its homepage shows no prices.

    Best for In-house SOCs and MSSPs covering ICS networks

    WebSelf-hostedContact for pricing

    80.0score
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About Fortinet OT Security Platform alternatives

What is the best alternative to Fortinet OT Security Platform?
On listme.name the highest-scored alternative is Dragos, followed by Nozomi Networks. The right choice depends on price, platform and whether you need open source.
Is there a free alternative to Fortinet OT Security Platform?
No free alternative is ranked next to Fortinet OT Security Platform at the moment.