Documented OT/ICS Cybersecurity Consultancies
Operational technology fails differently from IT. A compromised historian is an inconvenience; a compromised safety instrumented system is a shutdown, an environmental release, or worse. The firms listed here work in that reality daily, refinery ransomware containment, pipeline response under TSA Security Directives, SCADA restoration with NERC CIP reporting attached.
Every firm carries named, currently-certified responders (GICSP, GRID, GCIP), active insurance panel memberships, and anonymized case outcomes with recorded response and containment times, visible before you ever send an RFP.
What renders on this page
- ▸Firm matrix filtered by framework alignment, MITRE ATT&CK for ICS, IEC 62443, NERC CIP, TSA Pipeline Security Directive
- ▸Certification verification with named holder counts and expiration tracking
- ▸Insurance panel status (AIG, Chubb, Coalition, Beazley) with carrier-approved response rates
- ▸Deployment radius, onsite SLA, and retainer tier per firm
- ▸"Request Secure RFP" form pre-wired to the OT/ICS RFP template
Why OT/ICS vetting is different
IT incident response rewards speed; OT incident response rewards sequencing. A firm that contains before validating against safety instrumented systems creates the very process incident it was hired to prevent. Verified firms here are staffed separately from general IT DFIR practices, with industrial protocol experience (Modbus, DNP3, EtherNet/IP, OPC UA) and Purdue Model Levels 0–3 fluency.
What we verify
Certifications are checked against issuer registries with expiration dates, not firm-submitted logos. Insurance panel memberships are confirmed active with the carrier. Case studies are reviewed for authenticity and recency, then anonymized: industry, region, MITRE ATT&CK for ICS techniques, response time, containment time, and outcome are all recorded.
Framework alignment that maps to your obligations
Electric utilities get NERC CIP-aware responders (CIP-008 incident reporting completed on live engagements). Pipeline operators get TSA Security Directive experience. Manufacturers get ISA/IEC 62443-aligned recovery recommendations. Framework names in the directory are earned on engagements, not claimed on websites.
Start a structured RFP
The OT/ICS RFP template uses the exact language of your framework, Purdue model levels in scope, MITRE ATT&CK for ICS technique coverage, SLA tiers with onsite requirements, vendor platform experience (Dragos, Claroty, Nozomi, Armis), and insurance minimums. Verified firms respond with standardized proposals you can compare side by side.
Frequently asked questions
What certifications matter most for an OT/ICS incident response firm?
GICSP proves ICS security fundamentals, GRID proves incident handling in industrial environments, and GCIP covers critical infrastructure protection. Holder counts matter more than logo walls, the directory lists named holders per firm, with expiration tracking.
How fast can a verified firm be onsite?
Directory records show 2–6 hour onsite arrival for Gulf Coast engagements under a retainer critical tier, and 8–24 hours for remote regions. Every case study records actual response and containment times so you can set SLA expectations from evidence, not promises.
Do these firms work with cyber insurance carriers?
Most verified firms sit on at least one panel, AIG, Chubb, Coalition, or Beazley. Panel membership means pre-negotiated rates and no commercial delay at incident kickoff, which is why panel status is a filter in the directory.
What does an OT/ICS RFP include?
Purdue Model levels in scope, MITRE ATT&CK for ICS technique coverage, SLA tiers with onsite requirements, vendor platform experience, detection tooling, insurance minimums, and retainer structure. It takes about 15 minutes to complete.