West Yost

West Yost operates in the crosshairs of critical infrastructure and cybersecurity. Founded in 1990, this water-focused consulting firm has built an OTCR (Operations Technology, Cybersecurity, and Resilience) practice specifically to address cyber threats targeting water systems - supply, treatment, wastewater, and stormwater infrastructure that public agencies rely on. The threat model is concrete: operational technology networks in water utilities are high-value targets, and the practice leads with Cyber-informed Engineering (CIE) and Consequence-driven CCE to embed security at the design level.

The team's domains are technical and specific: OT security for industrial control systems, resilience planning against hybrid cyber-physical disruptions, and infrastructure design with integrated cyber layers. This isn't about fear-mongering; it's about consequence-driven analysis - mapping attack vectors to real-world impacts on water delivery and safety. Professionals here work across engineering and security disciplines, focusing on tooling and methodologies that mitigate risks in live operational environments.

Scale supports this mission: over 260 professionals across 11 offices in the Western U.S., all 100% employee-owned with Great Place to Work certification from 2023 to 2025. West Yost serves public agencies, cities, counties, and utilities, integrating cybersecurity as a core component of water resources planning, design, and construction management services.