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Consulting firm

Fidelis Associates

HAZOP facilitationWhat-If analysisLOPASIL verificationPHA revalidationPSM consulting

Houston, Texas, USA (office in Salt Lake City, Utah) · Listed July 29, 2026 · See all HAZOP consultants in USA →

Where they fit

A US process-safety consultancy whose FidelisCore team provides experienced, independent PHA facilitators for HAZOP, What-If and LOPA studies across refining, petrochemical, hydrogen and LNG operations — a fit for OSHA PSM-covered operators needing initial PHAs, five-year revalidations or MOC-triggered studies led by an independent chair.

About

Fidelis Associates is a US process-safety and operational-readiness consultancy with offices in Houston, Texas and Salt Lake City, Utah. Through its FidelisCore consulting practice it provides expert-led process hazard analysis (PHA) facilitation, with experienced facilitators who have led HAZOP, What-If and LOPA studies across petroleum refineries, petrochemical plants, hydrogen-production facilities and LNG terminals. Work covers initial PHAs, five-year revalidations and Management-of-Change-triggered studies under OSHA 29 CFR 1910.119(e), together with SIL verification, with an emphasis on skilled independent facilitation, experienced operations representation and rigorous tracking of recommendations to resolution. Fidelis also works across the wider process-safety-management lifecycle and runs a dedicated hydrogen-sector practice.

At a glance

RegionsNorth America
IndustriesOil & gas, Refining, Petrochemicals, Hydrogen, LNG
ServicesHAZOP facilitation, What-If analysis, LOPA, SIL verification, PHA revalidation, PSM consulting
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