Consultants / Services / Bow-Tie analysis

Bow-Tie analysis Consultants

29 bow-tie analysis facilitators who map threats, top events, consequences and the barriers between them, worldwide — to communicate major-accident barriers to operations, or to underpin a safety case.

Firm

Berkeley Engineering Consultants

new HAZOP facilitationHAZID

London-headquartered engineering consultancy with a long-running HAZOP/LOPA programme for Middle East operators — it states more than 750 project HAZOP/LOPA workshops for Saudi Aramco and more than 500 design reviews and HAZOPs for PDO — a fit for operators wanting facilitated baseline studies and revalidations of large refining, gas and petrochemical facilities.

London, UK (offices across the Middle East, Asia, Europe and North America) Middle EastAsiaEuropeUK
Firm

Berkeley & Imperial

new HAZOP facilitationHAZID

Small UK/US technical-safety and engineering-modelling consultancy that pairs HAZOP facilitation with in-house consequence and reliability modelling — a fit for upstream oil and gas and CO2 projects needing PHAs for OSHA PSM alongside safety cases, SIL allocation and quantitative follow-on work.

Newmarket, UK (office in Houston, USA) UKNorth AmericaGlobal
Independent

Vasudev Rao Bagayat

HAZOP chairHAZID

A veteran India-based independent HAZOP chairman with a stated four-decade-plus career spanning ammonia/fertilizers, oil & gas, refining, petrochemicals and specialty chemicals - including HAZOP, LOPA and SIL chairing engagements for major operators and international TIC firms across India, the Middle East and beyond - a fit for operators wanting a highly experienced independent chair for large or technically complex PHA studies.

Hyderabad, Telangana, India IndiaMiddle EastGlobal
Firm

ACSI Consultores S.A.C.

HAZOP facilitationHAZOP revalidation

A Peruvian process-safety and industrial-automation consultancy offering a full process hazard analysis chain — developing and revalidating HAZOP studies, then LOPA for SIL determination and quantitative SIL verification of safety instrumented functions to IEC 61511 — one of the few dedicated facilitators serving South America.

Lima, Peru South America
Independent

Damilola Apiriola

HAZOP chairHAZID

A Nigeria-based independent technical and process-safety engineer who facilitates HAZOP, HAZID and Bow-Tie studies and holds TÜV Rheinland functional-safety and TÜV SÜD Certified HAZOP Leader credentials — a fit for oil & gas operators in Nigeria and West Africa wanting an independent chair with hazard-management and safety-case experience.

Nigeria NigeriaWest Africa
Independent

Arvind Minocha

HAZOP chairHAZID

A senior process-safety and Major Accident Hazard specialist with a stated 35+ years across offshore and onshore oil & gas and downstream projects — a fit for operators wanting a HAZOP/SIL/LOPA chair with deep MAH-management, safety-case and functional-safety experience on large international projects.

Delhi, India IndiaMiddle EastSoutheast Asia
Firm

NRGtech Services

HAZOP facilitationHAZID

A process-safety and loss-prevention consultancy offering HAZOP, HAZID and SIL facilitation with dedicated scribing, a fit for oil, gas and petrochemical operators wanting facilitated process hazard assessments backed by QRA and fire & gas engineering.

Kolkata, West Bengal, India IndiaGlobal
Firm

Risk & Safety Solutions Melbourne

HAZOPHAZID

A Melbourne process-safety practice covering major hazard facility work, a fit for Victorian operators wanting HAZOP, HAZID, LOPA and PHA studies alongside safety case development and consequence modelling.

Point Cook, Victoria, Australia Australia
Firm

XACTX Group

HAZOP facilitationHAZID

A UK multi-disciplinary engineering, risk and compliance provider offering HAZID, HAZOP and FMEA facilitation, a fit for high-risk industrial sites wanting a senior-led team for process and electrical HAZOP studies alongside DSEAR and ATEX support.

Warrington, United Kingdom UKGlobal
Firm

River Rock Consulting Inc.

HAZOP facilitationHAZID

A Newfoundland engineering consultancy that supplies expert leadership, facilitation and software for HAZID, HAZOP, PHA, LOPA and scenario-based risk assessments, a fit for onshore and offshore energy, mining and utilities operators in Atlantic Canada wanting facilitation alongside technical and process-safety engineering.

Paradise, Newfoundland and Labrador, Canada Canada
Firm

AGF Consultants

HAZOP facilitationHAZID

A Cyprus-based specialist consultancy in process safety, major hazards and HSE for the energy sector, offering HAZOP/HAZID facilitation alongside QRA, safety-case development and barrier management, a fit for offshore and onshore operators needing regulator-ready major-hazard deliverables.

Nicosia, Cyprus CyprusEurope
Firm

HSEQ360

HAZOP studiesHAZID workshops

A first Ghana entry: a Ghana- and West Africa-focused HSEQ consultancy with a dedicated process-safety practice offering HAZOP studies, HAZID workshops, LOPA/PHA and BowTie analysis for oil & gas, mining and manufacturing operations.

Takoradi, Ghana Africa
Firm

Petrodia Engineering International

HAZOP studyQRA

A Mumbai process-safety consultancy covering the full PHA toolkit — HAZOP studies, QRA, bow-tie and hazardous-area classification — for oil, gas and process clients in India and abroad.

Mumbai, Maharashtra, India IndiaAsia
Firm

Cataly Partners

HAZOP facilitationHAZID

A Dutch HSEQ and process-safety consultancy whose specialists lead group hazard-identification studies — HAZOP, HAZID, LOPA, bow-tie, SIL and FMECA — for the oil, gas, chemical, tank-storage and wind sectors.

Hendrik-Ido-Ambacht, Netherlands Europe
Firm

PMC OilPro

HAZIDHAZOP facilitation

A France-based engineering house serving oil & gas operators (with Algerian operations) that assigns HAZID, HAZOP and SIL facilitators, backed by QRA and bow-tie analysis and its EPC365 safety-management platform.

Paris, France (operations in Algeria) EuropeAfrica
Firm

Velimor Middle East

HAZOP studyHAZID

A Dubai-based Technical HSE and risk-management consultancy that runs HAZOP and HAZID studies alongside the wider functional-safety lifecycle (SIL determination, LOPA, SIL verification) — a fit for operators and EPCs needing Gulf-region facilitation.

Dubai, United Arab Emirates Middle EastGlobal
Firm

Safety Consultants & Solution Providers (SCSP)

HAZOPHAZID

Multidisciplinary fire, HSE and technical-safety consultancy serving Sub-Saharan Africa whose process-safety unit facilitates HAZOP and HAZID studies alongside LOPA, bow-tie, QRA and safety-case work — a fit for Nigerian and West African oil & gas operators.

Nigeria NigeriaAfrica
Firm

Tomsey Engineering & Services International

HAZID facilitationHAZOP facilitation

Indigenous Nigerian engineering firm whose in-house technical-safety team facilitates HAZID and HAZOP workshops alongside SIL, QRA, FERA and safety-case development — a fit for Niger Delta oil & gas and pipeline projects.

Lagos, Nigeria NigeriaWest AfricaAfrica
Firm

Nineti Consultancy

HAZOPHAZID

Saudi risk-engineering and process-safety firm based in Dammam whose services span HAZOP, HAZID, LOPA/SIL, bow-tie and QRA — a locally based option for oil & gas, petrochemical and LNG operators in the Kingdom.

Dammam, Saudi Arabia Middle East
Firm

INERCO Colombia

HAZOP facilitationHAZID

The Colombian arm of an established international HSEC consultancy offering full-spectrum PHA — HAZID, What-If, HAZOP and LOPA — alongside functional safety and QRA, a fit for Spanish-speaking operators in the Andean region and across Latin America.

Bogotá, Colombia (part of INERCO; group offices across Latin America, Spain, UAE & India) South AmericaGlobal
Firm

IFO Group

HAZOP facilitationHAZID

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.

The Woodlands, Texas, USA (offices in New Caney & Beaumont) North America
Firm

Hazards Consultancy

HAZOP facilitationLOPA

A long-established South American process safety consultancy that facilitates the full Hazop > LOPA > SIL cycle plus HAZID, What-If, FMEA and Bow-Tie, and works in Portuguese across more than 50 industry segments — a fit for Brazilian and regional operators wanting a facilitator grounded in OSHA PSM and CCPS Risk-Based Process Safety, including procedure and human-factors HAZOPs.

Campinas, São Paulo, Brazil South America
Firm

Nathan HSE Consulting (NIMS)

HAZOP chairHAZID

The technical safety studies practice of a Dubai HSE provider, running HAZOP workshops led by company-approved HAZOP chairs alongside HAZID, FERA, SIL and safety-case work — a fit for UAE, Saudi and wider GCC oil, petrochemical and EPC projects wanting locally based process-hazard facilitation.

Dubai, UAE Middle East
Firm

Wellkinetics

HAZOP facilitationHAZID

Malaysian technical, safety and sustainability consultancy whose facilitators lead multidisciplinary teams through structured HAZOP studies aligned to local regulations — a fit for Southeast Asian process operators wanting facilitation delivered with in-country regulatory knowledge.

Petaling Jaya, Selangor, Malaysia Asia
Firm

Vaishali Engineering & Consultancy Service (VECS)

HAZOPHAZID

Mumbai-based process-safety and risk consultancy covering the full study set from HAZOP and HAZID through SIL, QRA and consequence analysis — a fit for Indian oil, gas and chemical operators wanting hazard studies and quantitative risk work from one team.

Mumbai, Maharashtra, India India
Firm

CST Risk Management

HAZOP chairWhat-If

Bogotá-based process-risk consultancy delivering HAZOP studies in Spanish across Latin America, with a US office in Florida and its own PHA and bow-tie software — a local-language option for Colombian and wider Latin American chemical, petrochemical and oil & gas operators, and the directory's first Colombian firm.

Bogotá, Colombia (office in Weston, Florida, USA) South AmericaNorth America
Firm

Watchmen Industrial Safety Experts (WISE)

HAZOP chairLOPA

Calgary process- and functional-safety boutique whose named principals hold CFSE and TÜV Rheinland functional safety credentials — a fit for Canadian and US operators wanting PHA facilitation joined up with SIS/SIL lifecycle, alarm management and fire & gas work under CSA Z767 and IEC 61511.

Calgary, Alberta, Canada North America
Firm

Hazion Engineering

HAZOP chairSIL assessment

Spanish process-safety boutique offering HAZOP studies in Spanish and English alongside SIL and LOPA work to IEC 61508/61511 — a fit for Iberian and international oil & gas, chemical and pharmaceutical operators wanting PHA that feeds into functional safety.

Spain Europe
Firm

Sigma-HSE

HAZOP facilitationHAZOP chair

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.

Winchester, UK (offices in USA & India) UKEuropeNorth AmericaAsiaAfrica

About Bow-Tie analysis

Bow-tie analysis maps a single top event to the threats that can cause it and the consequences that can follow, then sets out the preventive and mitigative barriers on each side. Its visual, barrier-centred format makes major-accident risk easy to communicate to operations and management, and straightforward to audit for barrier health.

The facilitators listed here build bow-ties to underpin safety cases, to communicate the outcomes of HAZOP and LOPA studies, or to support barrier-based management of major-accident hazards.

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