SIL in USA

A Houston fire, risk and process safety consultancy offering process hazard analysis facilitation alongside fire and explosion modelling, a fit for oil, gas, LNG and power operators wanting HAZOP/PHA facilitation combined with consequence modelling, LOPA and SIL work.

A small Virginia-based process-safety specialist that also operates in Qatar through a local sponsor — a fit for refining, chemical, manufacturing and pharmaceutical operators wanting a boutique PHA provider with US and Middle East reach.

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.

Small, independent US process-safety consultancy that facilitates HAZOPs, dust hazard analyses and LOPAs and shares its methods so client teams can carry the work forward — a fit for chemical, refining, oil-and-gas and grain-handling operators wanting lean, facilitator-led studies.

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.

A Texas-based safety, risk and fire consultancy whose consultants facilitate and scribe the full range of PHA studies — HAZOP, HAZID, LOPA, What-If, FMEA, Bow-Tie and SIS reviews — a fit for Gulf Coast refining, petrochemical and chemical operators needing an independent facilitator, a scribe, or revalidation of existing studies under OSHA PSM and EPA RMP.

A Houston-area (Pearland, Texas) process-safety consultancy whose facilitators have led hundreds of PHAs — HAZOP, HAZID, LOPA, What-If and SIL — for oil & gas, petrochemical, refining and ammonia-refrigeration sites, a fit for OSHA PSM / EPA RMP-covered US operators wanting an experienced independent PHA chair.

A US process-safety consultancy focused on PHA/HAZOP facilitation and SIL/LOPA verification for petroleum and energy operators, offering either a combined lead-and-scribe facilitator or a separate scribe, and fluent in PHA-Pro and PHAWorks documentation.

The functional-safety heavyweight — the natural choice when your HAZOP feeds directly into LOPA, SIL determination, and safety instrumented systems work.

Instrumented-safeguards specialists — a good chair when the study's real question is whether the interlocks and fire-and-gas coverage actually close the risk gap.

Full lifecycle shop: the same firm can facilitate the PHA, then engineer the safety systems the action items call for.