Company lists · Data refreshed September 2026

Top 25 Occupational disability assessment companies based in the United States

RevenueBase identified 157 occupational disability assessment companies headquartered in the United States as of September 2026 and tracks 3,534 professional contacts across them, including 670 with verified work emails. Dallas is the largest hub.

This list covers occupational disability assessment companies headquartered in the United States, 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 20, 2026.

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 20, 2026 86% judged on-target in blind review
157Companies
3,534Contacts tracked
670Verified emails
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The 25 largest occupational disability assessment companies based in the United States

Ranked by team size
Top 25 of 157 occupational disability assessment companies based in the United States, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to occupational disability assessment companies: 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 evidenceGlendora, CA, United StatesHQ checked Sep 20, 20261,001-5,0001,691 contacts →

Indirect evidence

“Leidos QTC Health Services collaborates closely with government and non-government customers to address current and future program needs within the health services domain.”

Source: RevenueBase Database · checked Sep 20, 2026
2Indirect evidenceTarrytown, NY, United StatesHQ checked Sep 20, 20261,001-5,000432 contacts →

Indirect evidence

“For over 30 years, The IMA Group has been dedicated to enhancing the livelihood and productivity of individuals and organizations navigating challenging periods of health, work…”

Source: RevenueBase Database · checked Sep 20, 2026
3Strong evidenceWestlake, OH, United StatesHQ checked Sep 20, 2026201-500224 contacts →

Strong evidence

“MRG Exams is a full-service provider of independent disability and impairment assessments.”

Source: RevenueBase Database · checked Sep 20, 2026
4Indirect evidenceRaleigh, NC, United StatesHQ checked Sep 20, 202651-20094 contacts →

Indirect evidence

“Founded in 1995, we are a rehabilitation case management company serving regional markets with services designed to facilitate recovery and return-to-work solutions for workers’…”

Source: RevenueBase Database · checked Sep 20, 2026
5Indirect evidenceSyosset, NY, United StatesHQ checked Sep 20, 202651-20051 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 20, 2026
6Indirect evidenceNorthville, MI, United StatesHQ checked Sep 20, 202651-20049 contacts →

Indirect evidence

“ReviewWorks robust offering of Medical Review Services has a proven performance record of outstanding results united with excellent customer service.”

Source: RevenueBase Database · checked Sep 20, 2026
7Partial evidenceNovi, MI, United StatesHQ checked Sep 20, 202651-20042 contacts →

Partial evidence

“MMRO is a leader in providing disability and medical review services to the public and private sectors.”

Source: RevenueBase Database · checked Sep 20, 2026
8Indirect evidenceAustin, TX, United StatesHQ checked Sep 20, 202651-20037 contacts →

Indirect evidence

“Safer, healthier, more productive workforce - from hire to retire.”

Source: RevenueBase Database · checked Sep 20, 2026
9Indirect evidenceSouthfield, MI, United StatesHQ checked Sep 20, 202651-20036 contacts →

Indirect evidence

“The MLS Group of Companies is the leading provider of Independent Medical Evaluations, Peer Review Services, and Functional Capacity Evaluations.”

Source: RevenueBase Database · checked Sep 20, 2026
10Indirect evidenceHarleysville, PA, United StatesHQ checked Sep 20, 202611-5032 contacts →

Indirect evidence

“IHS has integrated 25 years of experience in industrial workforce rehabilitation and injury prevention with a highly-experienced medical team to provide a comprehensive plan of…”

Source: RevenueBase Database · checked Sep 20, 2026
11Partial evidenceKing Of Prussia, PA, United StatesHQ checked Sep 20, 2026n/a32 contacts →

Partial evidence

“The WorkStrategies Program is dedicated to providing solutions for workers' compensation and disability issues through the delivery of services from injury prevention through…”

Source: RevenueBase Database · checked Sep 20, 2026
12Partial evidenceLynnwood, WA, United StatesHQ checked Sep 20, 202651-20030 contacts →

Partial evidence

“Northwest Return to Work was established in June 2007 in Lynnwood, Washington by Josh Cobbley, an experienced occupational therapist with a deep understanding of the working-class…”

Source: RevenueBase Database · checked Sep 20, 2026
13Partial evidenceOmaha, NE, United StatesHQ checked Sep 20, 202611-5029 contacts →

Partial evidence

“WorkFit is a comprehensive Occupational Health Services and Medical / Legal Nurse Consulting Practice, currently serving over 500 employers, insurance carriers, third party…”

Source: RevenueBase Database · checked Sep 20, 2026
14Indirect evidenceMinnetonka, MN, United StatesHQ checked Sep 20, 202651-20027 contacts →

Indirect evidence

“Woodlake Medical is a privately owned medical-legal company that arranges independent medical evaluations (IMEs).”

Source: RevenueBase Database · checked Sep 20, 2026
15Indirect evidenceSan Diego, MI, United StatesHQ checked Sep 20, 202611-5027 contacts →

Indirect evidence

“Our team has established a national reputation for excellence in workforce readiness and return-to-work evaluations through advanced Functional Capacity Evaluations (FCEs) and…”

Source: RevenueBase Database · checked Sep 20, 2026
16Partial evidenceOgden, UT, United StatesHQ checked Sep 20, 202651-20025 contacts →

Partial evidence

“MDSI is a provider of medical and disability evaluations in the United States.”

Source: RevenueBase Database · checked Sep 20, 2026
17Indirect evidenceLake Tahoe, United StatesHQ checked Sep 20, 202611-5022 contacts →

Indirect evidence

“ADM was founded in Vocational Rehabilitation-a field built on understanding essential job functions, matching capabilities to real job demands, and helping injured workers return…”

Source: RevenueBase Database · checked Sep 20, 2026
18Indirect evidenceLombard, IL, United StatesHQ checked Sep 20, 202611-5020 contacts →

Indirect evidence

“Founded in 1992 by Joseph Belmonte, Vocamotive is a vocational rehabilitation firm focused on enhancing the dignity, independence, and quality of life for individuals with…”

Source: RevenueBase Database · checked Sep 20, 2026
19Indirect evidenceSan Diego County, CA, United StatesHQ checked Sep 20, 202651-20017 contacts →

Indirect evidence

“Veteran Medical Group (VMG) specializes in providing concise Independent medical evaluations primarily for Veterans and other claimants in need of expert evaluations.”

Source: RevenueBase Database · checked Sep 20, 2026
20Indirect evidenceWaukesha, WI, United StatesHQ checked Sep 20, 202611-5017 contacts →

Indirect evidence

“Crawford Evaluation Group is a Wisconsin based provider of medical-legal expert services in the Midwest, and is now part of MDpanel and their continually growing group of…”

Source: RevenueBase Database · checked Sep 20, 2026
21Indirect evidenceOlympia, WA, United StatesHQ checked Sep 20, 202611-5017 contacts →

Indirect evidence

“We get everyone back to productive by proactively managing the vocational claims process for industrial injuries.”

Source: RevenueBase Database · checked Sep 20, 2026
22Indirect evidencePhoenix, AZ, United StatesHQ checked Sep 20, 202611-5014 contacts →

Indirect evidence

“With more than three decades of experience, our team at Vocational Diagnostics Inc.”

Source: RevenueBase Database · checked Sep 20, 2026
23Indirect evidencePerrysburg, OH, United StatesHQ checked Sep 20, 202611-5014 contacts →

Indirect evidence

“Ohio's IME and Peer Review Specialists Since 1981 -Over 30 years experience in IME related solutions -Clinical locations throughout Ohio -Prompt, accurate reports -Ability to…”

Source: RevenueBase Database · checked Sep 20, 2026
24Indirect evidenceGlendora, United StatesHQ checked Sep 20, 202611-5013 contacts →

Indirect evidence

“We are a management company responsible for connecting IME companies, insurance companies, TPAs, state agencies and private citizens with medical and mental health doctors, PAs…”

Source: RevenueBase Database · checked Sep 20, 2026
25Indirect evidenceMinneapolis, MN, United StatesHQ checked Sep 20, 202651-20011 contacts →

Indirect evidence

“Integrity is a URAC and SOC2 accredited medicolegal consulting company that provides IMEs, medical record reviews, peer reviews and functional capacity evaluations through access…”

Source: RevenueBase Database · checked Sep 20, 2026

Showing 25 of 157 occupational disability assessment companies based in the United States

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Occupational disability assessment companies based in the United States at a glance

As of Sep 20, 2026
19.0%Verified-email coverage
22.5Average contacts per company
1-10Median size (employees)
2.5%Largest-city concentration · Dallas
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
79
11-50
54
51-200
19
201-500
1
1,001-5,000
2
10001+
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 157 companies.

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 occupational disability assessment companies, 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.
What qualifies
Companies headquartered in the United States whose own description of what they do matches “occupational disability assessment companies”. 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 occupational disability assessment companies), 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 occupational disability assessment companies, and records with no verified work email. Companies headquartered outside United States are excluded even when they keep an office there.
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, 670 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 20, 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.

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 occupational disability assessment companies, 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 occupational disability assessment companies are there based in the United States?

RevenueBase identified 157 occupational disability assessment companies headquartered in the United States 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?

QTC Management, INC, headquartered in Glendora, tops this list with the largest team on record.

Which city has the most occupational disability assessment companies?

Dallas leads with 4 headquartered companies, followed by Austin (3) and Houston (3).

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 670 verified decision-maker contacts tracked across these 157 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 20, 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.