Company lists · Data refreshed September 2026

Top 25 Incident investigation consulting firms worldwide

RevenueBase identified 3,017 incident investigation consulting firms worldwide as of September 2026 and tracks 24,630 professional contacts across them, including 8,631 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers incident investigation consulting firms worldwide, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 28, 2026. Country and city lists for incident investigation consulting firms follow the table.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 28, 2026 86% judged on-target in blind review
3,017Companies
24,630Contacts tracked
8,631Verified emails
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The 25 largest incident investigation consulting firms worldwide

Ranked by team size
Top 25 of 3,017 incident investigation consulting firms worldwide, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to incident investigation consulting firms: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceHouston, TX, United StatesHQ checked Sep 28, 20261,001-5,0001,184 contacts →

Indirect evidence

“Consultants.”

Source: RevenueBase Database · checked Sep 28, 2026
2Partial evidenceMemphis, TN, United StatesHQ checked Sep 28, 2026501-1,000748 contacts →

Partial evidence

“EFI Global is a multidisciplinary consulting firm that helps clients investigate, assess and resolve complex property, infrastructure and financial challenges.”

Source: RevenueBase Database · checked Sep 28, 2026
3Partial evidenceAurora, IL, United StatesHQ checked Sep 28, 2026201-500480 contacts →

Partial evidence

“Engineering Systems Inc.(ESi) is a forensic engineering and scientific investigation firm committed to providing actionable solutions to industry and technical challenges through…”

Source: RevenueBase Database · checked Sep 28, 2026
4Partial evidenceSheffield, United KingdomHQ checked Sep 28, 2026n/a377 contacts →

Partial evidence

“GCPS is a UK-based international consulting firm with a network of highly experienced consultants supporting clients to prevent and respond to staff misconduct (e.g.”

Source: RevenueBase Database · checked Sep 28, 2026
5Partial evidenceChicago, IL, United StatesHQ checked Sep 28, 2026201-500376 contacts →

Partial evidence

“Envista Forensics is the global leader in providing comprehensive forensic consulting and engineering services.”

Source: RevenueBase Database · checked Sep 28, 2026
6Partial evidencePhoenix, AZ, United StatesHQ checked Sep 28, 2026201-500354 contacts →

Partial evidence

“Since 1985, Telgian has served as a trusted partner to clients around the globe, providing innovative fire, security, life safety consulting and engineering/design services…”

Source: RevenueBase Database · checked Sep 28, 2026
7Indirect evidenceSt. Paul, MN, United StatesHQ checked Sep 28, 2026201-500353 contacts →

Indirect evidence

“Our mission at AET is to work together to build a more certain world.”

Source: RevenueBase Database · checked Sep 28, 2026
8Partial evidenceWalnut Creek, CA, United StatesHQ checked Sep 28, 2026201-500332 contacts →

Partial evidence

“MKA International, Inc.(MKA) a leading multidisciplinary Construction & Engineering Consulting firm, providing seamless support and specialized services to a wide variety of…”

Source: RevenueBase Database · checked Sep 28, 2026
9Partial evidenceColumbus, OH, United StatesHQ checked Sep 28, 2026201-500297 contacts →

Partial evidence

“Established in 1970, S-E-A is a recognized worldwide leader in forensic analysis and investigation.”

Source: RevenueBase Database · checked Sep 28, 2026
10Indirect evidenceCharlotte, NC, United StatesHQ checked Sep 28, 2026201-500210 contacts →

Indirect evidence

“Donan, part of the Alpine Intel suite of services, answers the challenging questions about property loss and product failures.”

Source: RevenueBase Database · checked Sep 28, 2026
11Partial evidenceCarlsbad, CA, United StatesHQ checked Sep 28, 202651-200196 contacts →

Partial evidence

“Since 1989, MC’s team of professional consultants have leveraged their extensive construction backgrounds to deliver industry-leading construction consulting and forensic…”

Source: RevenueBase Database · checked Sep 28, 2026
12Indirect evidenceLondon, United KingdomHQ checked Sep 28, 202651-200184 contacts →

Indirect evidence

“Hawkins is a multi-disciplinary forensic practice established in 1980 with offices across the UK & Ireland, Europe, MEA and Asia.”

Source: RevenueBase Database · checked Sep 28, 2026
13Partial evidenceLancaster, PA, United StatesHQ checked Sep 28, 202651-200181 contacts →

Partial evidence

“Robson Forensic is a national leader in expert witness consulting, providing technical expertise across many fields within engineering, architecture, and science, as well as an…”

Source: RevenueBase Database · checked Sep 28, 2026
14Indirect evidenceCranston, RI, United StatesHQ checked Sep 28, 2026501-1,000175 contacts →

Indirect evidence

“Thielsch, Inc.”

Source: RevenueBase Database · checked Sep 28, 2026
15Partial evidenceFlower Mound, TX, United StatesHQ checked Sep 28, 202651-200157 contacts →

Partial evidence

“Haag is an employee-owned forensic engineering & technical consulting firm, since 1924.”

Source: RevenueBase Database · checked Sep 28, 2026
16Partial evidenceRochester, NH, United StatesHQ checked Sep 28, 202651-200155 contacts →

Partial evidence

“The Origin & Cause Experts - Subrogation & Large Loss Experts - Fire Scene Investigation - Arson Investigation - Automotive Fire Origin & Cause - Secure Evidence Storage -…”

Source: RevenueBase Database · checked Sep 28, 2026
17Partial evidenceEast Providence, RI, United StatesHQ checked Sep 28, 202651-200154 contacts →

Partial evidence

“Founded in 1954, Halliwell is a premier multi-service Engineering, Forensic Architecture, and Construction professional services firm providing comprehensive loss consulting to…”

Source: RevenueBase Database · checked Sep 28, 2026
18Partial evidenceLisboa, PortugalHQ checked Sep 28, 2026201-500153 contacts →

Partial evidence

“Constituída em 1990, a UON Consulting é uma empresa de Consultoria de Engenharia e Gestão que presta serviços no mercado internacional nas áreas de Avaliações, Peritagens…”

Source: RevenueBase Database · checked Sep 28, 2026
19Partial evidenceLaval, QC, CanadaHQ checked Sep 28, 202651-200140 contacts →

Partial evidence

“CEP Forensic represents nearly 50 years of experience, more than 125 employees and over investigations completed to date.”

Source: RevenueBase Database · checked Sep 28, 2026
20Indirect evidenceSeattle, WA, United StatesHQ checked Sep 28, 202651-200108 contacts →

Indirect evidence

“YA Engineering Services is now part of YA Group.”

Source: RevenueBase Database · checked Sep 28, 2026
21Indirect evidenceWashington Dc, MD, United StatesHQ checked Sep 28, 202651-200106 contacts →

Indirect evidence

“The Fire & Risk Alliance was created under four basic principles: TRUST – To be our clients trusted partner in maintaining and improving safety.”

Source: RevenueBase Database · checked Sep 28, 2026
22Partial evidenceConcord, ON, United StatesHQ checked Sep 28, 202651-200105 contacts →

Partial evidence

“We are a forensic engineering, consulting and environmental sciences company serving clients across Canada.”

Source: RevenueBase Database · checked Sep 28, 2026
23Partial evidenceMina Salman Industrial, BahrainHQ checked Sep 28, 2026201-500105 contacts →

Partial evidence

“ATECH is a market-leading provider of expert investigation and analytical services.”

Source: RevenueBase Database · checked Sep 28, 2026
24Partial evidenceNew York, NY, United StatesHQ checked Sep 28, 2026201-500103 contacts →

Partial evidence

“Established in Site Safety is a national safety consulting, training, and management organization.”

Source: RevenueBase Database · checked Sep 28, 2026
25Partial evidenceDen Haag, NetherlandsHQ checked Sep 28, 202651-20099 contacts →

Partial evidence

“In Nederland wordt ernaar gestreefd het gevaar van ongevallen en incidenten zoveel mogelijk te beperken.”

Source: RevenueBase Database · checked Sep 28, 2026

Showing 25 of 3,017 incident investigation consulting firms worldwide

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Incident investigation consulting firms worldwide at a glance

As of Sep 28, 2026
35.0%Verified-email coverage
8.2Average contacts per company
1-10Median size (employees)
1.7%Largest-city concentration · Sao Paulo
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
2,120
11-50
707
51-200
141
201-500
26
501-1,000
7
1,001-5,000
4
10001+
1

Email recency is reported on each country list linked below.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among incident investigation consulting firms, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
Coverage
Every country. Country and city lists for incident investigation consulting firms are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “incident investigation consulting firms”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search
RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names incident investigation consulting firms), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude
Companies whose own description does not clearly place them among incident investigation consulting firms, and records with no verified work email.
Match quality
In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
Ranking
Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification
Every listed company carries at least one verified work email, 8,631 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh
This page's figures were pulled from the company graph on September 28, 2026. Lists refresh periodically as the graph is re-checked.
Corrections
Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Incident investigation consulting firms by location

12 lists · largest first

Every Incident investigation consulting firms list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names incident investigation consulting firms, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many incident investigation consulting firms are there worldwide?

RevenueBase identified 3,017 incident investigation consulting firms worldwide as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Rimkus, headquartered in Houston, tops this list with the largest team on record.

Which country has the most incident investigation consulting firms?

The United States leads with 1,001 companies, followed by Brazil (327) and Italy (160). Every incident investigation consulting firms list by country and city is linked on this page.

Which city has the most incident investigation consulting firms?

Sao Paulo leads with 50 headquartered companies, followed by Houston (29) and Calgary (26).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 8,631 verified decision-maker contacts tracked across these 3,017 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 28, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.