QRA in North America

A California process-safety and regulatory-compliance engineering firm whose engineers facilitate and scribe HAZOP, What-If and HAZID studies, a fit for US operators managing EPA RMP, OSHA PSM and CalARP programs alongside their process hazard analyses.

A Houston risk-technology firm whose HAZOP leaders hold a broad range of client-required certifications, a fit for oil and gas, LNG and petrochemical operators wanting HAZOP and HAZID facilitation linked to LOPA, quantitative risk analysis and consequence modelling for onshore and offshore facilities.

A Calgary process-safety consultancy whose team states it has facilitated thousands of risk assessments for EPCs and operators, a fit for oil and gas, refining and chemical clients wanting HAZOP, HAZID, What-If, CHAZOP and LOPA facilitation alongside QRA, functional safety and PSM support.

A California-based process safety and environmental boutique offering HAZOP/LOPA facilitation with strong US regulatory coverage (EPA RMP, OSHA PSM, CalARP) — a fit for domestic operators needing PHA delivered inside a compliance program.

The Spanish-language arm of exida serving Latin America and Spain, listing HAZOP, HAZID and QRA among its process-hazard-analysis services alongside functional-safety and alarm-management work — a fit for process-industry operators wanting PHA facilitation in Spanish.

A Sarnia (Ontario) process-safety, reliability and risk consultancy offering PHA facilitation — HAZID, HAZOP and What-If — alongside LOPA, SIL determination and verification, alarm-management and RAM studies, and IEC 61511 life-cycle support.

An ADNOC-approved inspection and engineering consultancy (established in Cairo in 2001, now headquartered in Abu Dhabi with offices in Egypt, Iraq, Oman and Canada) whose Risk Engineering practice facilitates HAZID/ENVID, HAZOP/PHA, LOPA and SIL assessment studies for oil, gas and petrochemical assets.

An India-based process-safety consultancy whose staff run the full PHA toolkit — HAZOP, LOPA, What-If and QRA — backed by an in-house reactive-chemistry lab for ARSST thermal-stability testing.

A Calgary operational-risk-management firm focused solely on PHA and decision support, delivering HAZOP and LOPA with a structured decision-analysis approach and its own HAZOP360 software and PHA training — a fit for operators who want risk studies that translate into defensible investment decisions.

The explosion- and dust-hazard specialist and developer of the FLACS CFD software — its HAZOP teams pair facilitation with deep consequence modelling, strong when the study touches gas or dust explosion risk or energy-transition fuels like hydrogen, LNG, ammonia and CCUS.

Long-running risk consultancy whose facilitators and scribes work across the major PHA software platforms — a safe pair of hands for full-scope HAZOP delivery.

Combines HAZOP facilitation with in-house, ISO/IEC 17025-accredited dust flammability and chemical reaction hazard (DSC/ARC) testing labs — useful when a study raises reactive- or explosion-hazard questions the team can't answer from the P&ID.

Deep bench on pressure relief and consequence analysis — strong when HAZOP actions are likely to cascade into relief-system redesign.

The facility-siting and explosion-hazard authority — the chair to pick when blast overpressure and occupied-building risk dominate the study.

Global scale with offshore and marine depth — a frequent choice for FPSO, terminal, and offshore-platform HAZOP/HAZID campaigns.

The classification-society pedigree plus early depth in hydrogen and new-energy safety — relevant as HAZOP demand shifts toward energy-transition projects.