Company lists · Data refreshed September 2026

Top 25 Occupational health monitoring software companies based in the United States

RevenueBase identified 323 occupational health monitoring software companies headquartered in the United States as of September 2026 and tracks 14,813 professional contacts across them, including 2,921 with verified work emails. Houston is the largest hub.

This list covers occupational health monitoring software 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 29, 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 29, 2026 86% judged on-target in blind review
323Companies
14,813Contacts tracked
2,921Verified emails
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The 25 largest occupational health monitoring software companies based in the United States

Ranked by team size
Top 25 of 323 occupational health monitoring software companies based in the United States, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to occupational health monitoring software 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
1Strong evidenceAddison, TX, United StatesHQ checked Sep 29, 202610001+7,091 contacts →

Strong evidence

“WHO WE ARE: Concentra is the leader in occupational health with 40+ years of improving the health of America's workforce, one patient at a time.”

Source: RevenueBase Database · checked Sep 29, 2026
2Partial evidenceChicago, IL, United StatesHQ checked Sep 29, 2026501-1,000568 contacts →

Partial evidence

“VelocityEHS is the global leader in EHS & Sustainability software, pioneering human-centered AI to make workplaces safer, faster.”

Source: RevenueBase Database · checked Sep 29, 2026
3Partial evidenceFrisco, TX, United StatesHQ checked Sep 29, 2026501-1,000543 contacts →

Partial evidence

“HSI is a leading software platform provider that integrates EHSQ, training, compliance, and operational risk management solutions.”

Source: RevenueBase Database · checked Sep 29, 2026
4Partial evidenceWestminster, CO, United StatesHQ checked Sep 29, 2026201-500530 contacts →

Partial evidence

“KPA is a leading provider of Safety Management and Workforce Compliance software and services for a wide range of businesses.”

Source: RevenueBase Database · checked Sep 29, 2026
5Strong evidenceOrange, CA, United StatesHQ checked Sep 29, 2026501-1,000463 contacts →

Strong evidence

“WorkCare, Inc, a U.S-based occupational health, wellness and absence management company, is part of the APM Group.”

Source: RevenueBase Database · checked Sep 29, 2026
6Strong evidenceOverland Park, KS, United StatesHQ checked Sep 29, 2026201-500274 contacts →

Strong evidence

“Examinetics is the leading provider of occupational health solutions, offering services across the entire employee lifecycle with several delivery methods.”

Source: RevenueBase Database · checked Sep 29, 2026
7Partial evidenceBurlington, MA, United StatesHQ checked Sep 29, 2026201-500254 contacts →

Partial evidence

“Octave Reliance (formerly ETQ Reliance) is the leading Quality, EHS, Food Safety and Compliance management software for identifying, mitigating and preventing high-risk events…”

Source: RevenueBase Database · checked Sep 29, 2026
8Partial evidenceTrenton, NJ, United StatesHQ checked Sep 29, 202651-200210 contacts →

Partial evidence

“Rees Scientific provides continuous automated monitoring to a limitless number of applications in a wide range of industries.”

Source: RevenueBase Database · checked Sep 29, 2026
9Strong evidenceLong Island City, United StatesHQ checked Sep 29, 202651-200181 contacts →

Strong evidence

“Since 1984, Mobile Health has been a trusted employee screening and occupational health provider.”

Source: RevenueBase Database · checked Sep 29, 2026
10Strong evidenceTorrance, CA, United StatesHQ checked Sep 29, 2026201-500179 contacts →

Strong evidence

“For more than 45 years, CAREonsite has been a best-in-class provider of occupational healthcare solutions that help businesses of all sizes protect employee health and improve…”

Source: RevenueBase Database · checked Sep 29, 2026
11Indirect evidenceSunrise, FL, United StatesHQ checked Sep 29, 2026201-500174 contacts →

Indirect evidence

“ProcessMAP was acquired by Ideagen in 2022.”

Source: RevenueBase Database · checked Sep 29, 2026
12Strong evidenceBaton Rouge, LA, United StatesHQ checked Sep 29, 202651-200130 contacts →

Strong evidence

“PRIME Occupational Medicine is committed to providing high-quality occupational health services.”

Source: RevenueBase Database · checked Sep 29, 2026
13Strong evidenceSan Jose, CA, United StatesHQ checked Sep 29, 202651-200107 contacts →

Strong evidence

“We’re redefining the occupational health space to deliver better programs and care for all.”

Source: RevenueBase Database · checked Sep 29, 2026
14Indirect evidenceMobile, AL, United StatesHQ checked Sep 29, 202651-20099 contacts →

Indirect evidence

“At Safety Plus, we believe that ensuring workplace safety should enhance not inhibit productivity or profitability.”

Source: RevenueBase Database · checked Sep 29, 2026
15Partial evidenceEighty Four, PA, United StatesHQ checked Sep 29, 202651-20095 contacts →

Partial evidence

“SKC is a well-known and respected leader in industrial hygiene and occupational safety.”

Source: RevenueBase Database · checked Sep 29, 2026
16Partial evidencePlano, TX, United StatesHQ checked Sep 29, 202651-20088 contacts →

Partial evidence

“SafetyStratus offers the industry's most comprehensive enterprise EH & S software platform with software, technology, and content to reduce risks and achieve operational…”

Source: RevenueBase Database · checked Sep 29, 2026
17Strong evidenceHouston, TX, United StatesHQ checked Sep 29, 202651-20088 contacts →

Strong evidence

“Occucare International is a global occupational health service provider founded in 1980.”

Source: RevenueBase Database · checked Sep 29, 2026
18Indirect evidenceBethel Park, PA, United StatesHQ checked Sep 29, 202651-20065 contacts →

Indirect evidence

“Mobile Medical Corporation (MMC) is a premier provider of workplace substance abuse testing and on-site medical services nationwide.”

Source: RevenueBase Database · checked Sep 29, 2026
19Partial evidenceHapeville, GA, United StatesHQ checked Sep 29, 202651-20058 contacts →

Partial evidence

“The Premier Occupational Medicine Provider.”

Source: RevenueBase Database · checked Sep 29, 2026
20Partial evidenceBirmingham, AL, United StatesHQ checked Sep 29, 202611-5054 contacts →

Partial evidence

“OHD is a company committed to our Mission of Passionately Protecting The Health Of The World's Workforce.”

Source: RevenueBase Database · checked Sep 29, 2026
21Indirect evidenceHouston, TX, United StatesHQ checked Sep 29, 202651-20048 contacts →

Indirect evidence

“Welcome to EHS Insight, where our mission is more than just a statement-it's the foundation of everything we do.”

Source: RevenueBase Database · checked Sep 29, 2026
22Strong evidenceSulphur, LA, United StatesHQ checked Sep 29, 202651-20047 contacts →

Strong evidence

“Business Health Partners has been providing quality occupational health service for business and industry since 1995.”

Source: RevenueBase Database · checked Sep 29, 2026
23Indirect evidenceHouston, TX, United StatesHQ checked Sep 29, 202611-5046 contacts →

Indirect evidence

“International Safety Systems, Inc.(ISS) is a consulting company providing cost effective and high quality industrial hygiene and safety services to 35+ countries from its offices…”

Source: RevenueBase Database · checked Sep 29, 2026
24Partial evidencePittsburgh, PA, United StatesHQ checked Sep 29, 202611-5045 contacts →

Partial evidence

“ChemDAQ’s mission is to empower customers to eliminate workplace exposure to toxic chemicals through innovative monitoring and control solutions, industry-leading partnerships…”

Source: RevenueBase Database · checked Sep 29, 2026
25Strong evidenceBroomfield, CO, United StatesHQ checked Sep 29, 202611-5045 contacts →

Strong evidence

“We help you stay OSHA compliant and keep your employees safe with on-site occupational health, safety, and industrial hygiene services including: Audiometric Hearing Tests…”

Source: RevenueBase Database · checked Sep 29, 2026

Showing 25 of 323 occupational health monitoring software companies based in the United States

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Occupational health monitoring software companies based in the United States at a glance

As of Sep 29, 2026
19.7%Verified-email coverage
45.9Average contacts per company
11-50Median size (employees)
4.0%Largest-city concentration · Houston
Sep 29, 2026Page data refreshed

Companies by employee count

1-10
131
11-50
131
51-200
45
201-500
8
501-1,000
4
1,001-5,000
1
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 323 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 health monitoring software 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 health monitoring software 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 health monitoring software 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 health monitoring software 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, 2,921 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 29, 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 health monitoring software 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 health monitoring software companies are there based in the United States?

RevenueBase identified 323 occupational health monitoring software 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?

Concentra, headquartered in Addison, tops this list with the largest team on record.

Which city has the most occupational health monitoring software companies?

Houston leads with 13 headquartered companies, followed by Austin (6) and Chicago (6).

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 2,921 verified decision-maker contacts tracked across these 323 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 29, 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.