Company lists · Data refreshed September 2026

Top 25 Incident investigation consulting firms based in the United States

Name: Incident investigation consulting firms based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 1,001 companies tracked

RevenueBase identified 1,001 company matches for incident investigation consulting firms associated with the United States as of September 2026 and tracks 13,828 professional contacts across them, including 6,127 with verified work emails. Houston is the largest hub.

This list covers company matches for incident investigation consulting firms associated with the United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 28, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Sep 28, 2026 How this list was built

1,001Companies

13,828Contacts tracked

6,127Verified emails

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The 25 largest incident investigation consulting firms based in the United States

Ranked by team size

Top 25 of 1,001 company matches for incident investigation consulting firms based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 28, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Rimkus	Exact match	Houston, TX, United StatesHQ recorded Sep 28, 2026	1,001-5,000	1,184 contacts →
	Exact match “Consultants.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
2	EFI Global	Exact match	Memphis, TN, United StatesHQ recorded Sep 28, 2026	501-1,000	748 contacts →
	Exact match “EFI Global is a multidisciplinary consulting firm that helps clients investigate, assess and resolve complex property, infrastructure and financial challenges.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
3	Engineering Systems Inc. ESI	Exact match	Aurora, IL, United StatesHQ recorded Sep 28, 2026	201-500	480 contacts →
	Exact match “Engineering Systems Inc.(ESi) is a forensic engineering and scientific investigation firm committed to providing actionable solutions to industry and technical challenges through…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
4	Envista Forensics	Exact match	Chicago, IL, United StatesHQ recorded Sep 28, 2026	201-500	376 contacts →
	Exact match “Envista Forensics is the global leader in providing comprehensive forensic consulting and engineering services.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
5	Telgian	Exact match	Phoenix, AZ, United StatesHQ recorded Sep 28, 2026	201-500	354 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
6	AET	Exact match	St. Paul, MN, United StatesHQ recorded Sep 28, 2026	201-500	353 contacts →
	Exact match “Our mission at AET is to work together to build a more certain world.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
7	MKA International, INC	Exact match	Walnut Creek, CA, United StatesHQ recorded Sep 28, 2026	201-500	332 contacts →
	Exact match “MKA International, Inc.(MKA) a leading multidisciplinary Construction & Engineering Consulting firm, providing seamless support and specialized services to a wide variety of…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
8	S-E-A	Exact match	Columbus, OH, United StatesHQ recorded Sep 28, 2026	201-500	297 contacts →
	Exact match “Established in 1970, S-E-A is a recognized worldwide leader in forensic analysis and investigation.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
9	DONAN	Exact match	Charlotte, NC, United StatesHQ recorded Sep 28, 2026	201-500	210 contacts →
	Exact match “Donan, part of the Alpine Intel suite of services, answers the challenging questions about property loss and product failures.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
10	MC Consultants	Exact match	Carlsbad, CA, United StatesHQ recorded Sep 28, 2026	51-200	196 contacts →
	Exact match “Since 1989, MC’s team of professional consultants have leveraged their extensive construction backgrounds to deliver industry-leading construction consulting and forensic…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
11	Robson Forensic, INC	Exact match	Lancaster, PA, United StatesHQ recorded Sep 28, 2026	51-200	181 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
12	Thielsch Engineering	Exact match	Cranston, RI, United StatesHQ recorded Sep 28, 2026	501-1,000	175 contacts →
	Exact match “Thielsch, Inc.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
13	Haag, A Salas O'brien Company	Exact match	Flower Mound, TX, United StatesHQ recorded Sep 28, 2026	51-200	157 contacts →
	Exact match “Haag is an employee-owned forensic engineering & technical consulting firm, since 1924.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
14	Nefco Fire Investigations	Exact match	Rochester, NH, United StatesHQ recorded Sep 28, 2026	51-200	155 contacts →
	Exact match “The Origin & Cause Experts - Subrogation & Large Loss Experts - Fire Scene Investigation - Arson Investigation - Automotive Fire Origin & Cause - Secure Evidence Storage -…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
15	Halliwell	Exact match	East Providence, RI, United StatesHQ recorded Sep 28, 2026	51-200	154 contacts →
	Exact match “Founded in 1954, Halliwell is a premier multi-service Engineering, Forensic Architecture, and Construction professional services firm providing comprehensive loss consulting to…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
16	YA Engineering Services	Exact match	Seattle, WA, United StatesHQ recorded Sep 28, 2026	51-200	108 contacts →
	Exact match “YA Engineering Services is now part of YA Group.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
17	Fire & Risk Alliance, LLC	Exact match	Washington Dc, MD, United StatesHQ recorded Sep 28, 2026	51-200	106 contacts →
	Exact match “The Fire & Risk Alliance was created under four basic principles: TRUST – To be our clients trusted partner in maintaining and improving safety.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
18	Site Safety	Exact match	New York, NY, United StatesHQ recorded Sep 28, 2026	201-500	103 contacts →
	Exact match “Established in Site Safety is a national safety consulting, training, and management organization.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
19	Keystone Experts Engineers	Exact match	Castle Rock, CO, United StatesHQ recorded Sep 28, 2026	11-50	99 contacts →
	Exact match “Headquartered in Colorado with a nationwide reach, Keystone Experts and Engineers is a premier forensic firm specializing in commercial and residential structures.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
20	Amerisafe Group	Exact match	Greensburg, PA, United StatesHQ recorded Sep 28, 2026	51-200	99 contacts →
	Exact match “With offices in Pittsburgh, Roselle, and Chicago, Amerisafe Group, offers full-service safety consulting, training, rescue, and occupational health services for all types of…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
21	ARCCA	Exact match	Penns Park, PA, United StatesHQ recorded Sep 28, 2026	51-200	96 contacts →
	Exact match “For over 30 years, ARCCA has been providing expert scientific and engineering solutions.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
22	Biodynamic Research Corp	Exact match	San Antonio, TX, United StatesHQ recorded Sep 28, 2026	51-200	94 contacts →
	Exact match “Biodynamic Research Corportation (BRC) is a consulting and research firm who employs a consultant mix of both PhD Engineers and Physician Engineers.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
23	Pronet Group, INC	Exact match	Sugar Land, TX, United StatesHQ recorded Sep 28, 2026	51-200	90 contacts →
	Exact match “ProNet Group, Inc is a multi-disciplinary forensic engineering and consulting firm that has been an industry leader since 1990.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
24	GLE Associates, INC	Exact match	Tampa, FL, United StatesHQ recorded Sep 28, 2026	51-200	88 contacts →
	Exact match “GLE Associates is an environmental, facilities, industrial hygiene, and construction consulting firm, headquartered in Tampa, Florida, with offices throughout Florida and the…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
25	Diversified Safety Services, LLC	Exact match	Rosedale, MD, United StatesHQ recorded Sep 28, 2026	51-200	88 contacts →
	Exact match “Diversified Safety Services is a third-party safety consulting firm.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “incident investigation consulting firms”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 1,001 incident investigation consulting firms based in the United States

See the full list, filter by size, metro and specialty, and access 6,127 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Incident investigation consulting firms based in the United States at a glance

As of Sep 28, 2026

44.3%Verified-email coverage

13.8Average contacts per company

1-10Median size (employees)

2.9%Largest-city concentration · Houston

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

662

11-50

248

51-200

201-500

501-1,000

1,001-5,000

10001+

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 1,001 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Company records associated with the United States whose business descriptions match “incident investigation consulting firms” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 6,127 professional contacts with verified work emails across the full matched dataset. 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.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Incident investigation consulting firms by metro

Incident investigation consulting firms in Houston29

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “incident investigation consulting firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many incident investigation consulting firms are there based in the United States?

RevenueBase identified 1,001 company matches for incident investigation consulting firms associated with the United States as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Rimkus tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most incident investigation consulting firms?

Houston leads with 29 company records, followed by New York (19) and Tampa (14).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 6,127 professional contacts with verified work emails tracked across these 1,001 companies; direct dials are available where recorded.

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 SmartSearch, 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.