Company lists · Data refreshed October 2026

Top 25 Insurance investigation firms based in the United States

RevenueBase identified 456 company matches for insurance investigation firms associated with the United States as of October 2026 and tracks 6,003 professional contacts across them, including 1,952 with verified work emails. New York is the largest hub.

This list covers company matches for insurance investigation 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 October 17, 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 Oct 17, 2026 How this list was built
456Companies
6,003Contacts tracked
1,952Verified emails
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The 25 largest insurance investigation firms based in the United States

Ranked by team size
Top 25 of 456 company matches for insurance investigation firms based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 17, 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchSt. Petersburg, FL, United StatesHQ recorded Oct 17, 20261,001-5,000398 contacts →

Exact match

“Ethos Risk Services is a technology-backed, full-service claims management company.”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
2Exact matchBroussard, LA, United StatesHQ recorded Oct 17, 2026501-1,000252 contacts →

Exact match

“HUB Enterprises is a national insurance defense investigative firm.”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
3Exact matchKannapolis, NC, United StatesHQ recorded Oct 17, 2026201-500219 contacts →

Exact match

“Advantage Investigations is a nationwide leader in the industry for investigative services.”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
4Exact matchLake Mary, FL, United StatesHQ recorded Oct 17, 202651-200210 contacts →

Exact match

“Command Investigations, LLC is the preferred provider of Surveillance, SIU and Anti-Fraud Programming provided to P&C Carriers, Self-Insured Entities and Third-Party…”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
5Exact matchCharlotte, NC, United StatesHQ recorded Oct 17, 20261,001-5,000209 contacts →

Exact match

“Alpine Intel is dedicated to innovation across the property, auto, liability, and workers' comp insurance fields-helping our customers reach peak performance throughout the policy…”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
6Exact matchDallas Fort Worth, TX, United StatesHQ recorded Oct 17, 2026501-1,000201 contacts →

Exact match

“VRC Investigations, part of the Alpine Intel suite of services, is the leading national provider of investigative and insurance fraud solutions in the U.S.”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
7Exact matchDraper, UT, United StatesHQ recorded Oct 17, 202651-200157 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
8Exact matchNorth Haven, CT, United StatesHQ recorded Oct 17, 2026501-1,000121 contacts →

Exact match

“Knowledge is power" Whether you are an insurance company, TPA, insurance defense law firm, risk manager, private law firm, or corporation / business owner, we at Lemieux &…”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
9Exact matchUnited StatesHQ recorded Oct 17, 2026201-500102 contacts →

Exact match

“Why Becker & Company?”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
10Exact matchBattle Creek, MI, United StatesHQ recorded Oct 17, 202611-5099 contacts →

Exact match

“DMA Claims Services is a leading national multi-line insurance adjusting and investigations firm, founded in 1979, with experience in independent adjusting, claims administration…”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
11Exact matchHampshire, IL, United StatesHQ recorded Oct 17, 202651-20093 contacts →

Exact match

“PhotoFax®, Inc.”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
12Exact matchMobile, AL, United StatesHQ recorded Oct 17, 202611-5090 contacts →

Exact match

“Cathy Hester has over 35 years of experience serving the insurance industry.”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
13Exact matchHuntington Beach, CA, United StatesHQ recorded Oct 17, 202651-20089 contacts →

Exact match

“Horsemen Investigations is a full service investigation company, specializing in investigating insurance fraud and in minimizing risk exposure.”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
14Exact matchFresno, CA, United StatesHQ recorded Oct 17, 202611-5086 contacts →

Exact match

“National Insurance Inspection Services is the leading provider of high quality property insurance inspections, catering to the specific needs of property and casualty insurance…”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
15Exact matchPark Ridge, IL, United StatesHQ recorded Oct 17, 2026201-50082 contacts →

Exact match

“Marshall Investigative Group, division of Sphere Investigations, is a recognized leader in fraud and corporate investigations with more than 30 years of experience across North…”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
16Exact matchLake Mary, FL, United StatesHQ recorded Oct 17, 202651-20081 contacts →

Exact match

“IRSi offers a full range of insurance inspection services and field underwriting support aimed at delivering you all the information you need to make informed decisions.”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
17Exact matchLebanon, PA, United StatesHQ recorded Oct 17, 202651-20080 contacts →

Exact match

“RLD Associates, Inc.”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
18Exact matchNew York, NY, United StatesHQ recorded Oct 17, 2026201-50073 contacts →

Exact match

“Integrated Security Services, Inc.”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
19Exact matchWoburn, MA, United StatesHQ recorded Oct 17, 2026201-50064 contacts →

Exact match

“Claims Bureau USA has been providing Insurers, TPA's and their defense counsel with quality, in-depth investigative services since 1956.”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
20Exact matchPlantation, FL, United StatesHQ recorded Oct 17, 202651-20063 contacts →

Exact match

“Awarded Best Law Firm* of the Year by Lifestyle Media Group:Leaders in Law, The Goldstein Law Group is one of the nation's premier, AV rated, civil litigation law firms…”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
21Exact matchSacramento, CA, United StatesHQ recorded Oct 17, 202651-20055 contacts →

Exact match

“Today’s professionals rely on investigative firms to help manage risk by detecting and preempting problem situations.”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
22Exact matchLancaster, PA, United StatesHQ recorded Oct 17, 202651-20046 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
23Exact matchSyosset, NY, United StatesHQ recorded Oct 17, 202651-20046 contacts →

Exact match

“MedSource National serves insurance carriers, employers, third party administrators and the legal profession with personal service and quick referrals to a national network of…”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
24Exact matchSimi Valley, CA, United StatesHQ recorded Oct 17, 202651-20044 contacts →

Exact match

“For over 50 years, Schifrin, Gagnon & Dickey (SGD, Inc.) has provided high quality claims investigation, adjustment and administration.”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
25Exact matchTustin, CA, United StatesHQ recorded Oct 17, 202651-20042 contacts →

Exact match

“Established in 1987, RJN Investigations, Inc.”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase

Showing 25 of 456 insurance investigation firms based in the United States

See the full list, filter by size, metro and specialty, and access 1,952 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Insurance investigation firms based in the United States at a glance

As of Oct 17, 2026
32.5%Verified-email coverage
13.2Average contacts per company
1-10Median size (employees)
2.4%Largest-city concentration · New York
Oct 17, 2026Page data refreshed

Companies by employee count

1-10
230
11-50
138
51-200
62
201-500
16
501-1,000
8
1,001-5,000
2

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 456 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 “insurance investigation 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 1,952 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 October 17, 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.

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 “insurance investigation firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

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

RevenueBase identified 456 company matches for insurance investigation firms associated with the United States as of October 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?

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

Which city has the most insurance investigation firms?

New York leads with 11 company records, followed by Miami (8) and Fort Worth (7).

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 1,952 professional contacts with verified work emails tracked across these 456 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 October 17, 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.