Company lists · Data refreshed September 2026
Top 25 Medical laboratory staffing companies based in the United States
RevenueBase identified 2,046 medical laboratory staffing companies headquartered in the United States as of September 2026 and tracks 130,009 professional contacts across them, including 19,344 with verified work emails and 47,356 with mobile numbers. New York is the largest hub.
This list covers medical laboratory staffing 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, how directly it supports the match, and when it was last checked. Data refreshed September 5, 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.
The 25 largest medical laboratory staffing companies based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 27,884 | ||||
“Quest Diagnostics (NYSE: DGX) empowers people to take action to improve health outcomes.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 2 | 19,247 | ||||
“Aya Healthcare is the largest healthcare talent software and staffing company in the United States.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 3 | 2,529 | ||||
“Aureus Medical Group® is now Medical Solutions.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 4 | 2,045 | ||||
“CHG Healthcare is one of the nation’s leading providers of physician staffing, advanced practice staffing, and allied health staffing, delivering comprehensive healthcare…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 5 | 1,829 | ||||
“Welcome to Barton Associates, the locum tenens staffing and recruiting experts.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 6 | 1,779 | ||||
“Fusion Medical Staffing provides career opportunities to healthcare professionals by helping medical facilities fill their staffing needs.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 7 | 1,610 | ||||
“For more than four decades, BioReference has built a legacy based on scientific excellence, innovation and world-class service in laboratory testing solutions.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 8 | 1,538 | ||||
“In recruiting, stating actual facts has become: Foreign | Uncommon | Taboo.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 9 | 1,528 | ||||
“Clinical Pathology Laboratories (CPL) is a medically-led company dating back to 1948.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 10 | 1,264 | ||||
“At FlexCare, we know that solving healthcare talent challenges isn’t just about filling roles-it’s about building sustainable solutions that drive better patient care, stronger…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 11 | 1,222 | ||||
“Sonora Quest Laboratories, a subsidiary of Laboratory Sciences of Arizona, is an Arizona-based joint venture between Banner Health and Quest Diagnostics (NYSE: DGX) that makes up…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 12 | 1,171 | ||||
“LocumTenens.com specializes in optimizing healthcare staffing operations.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 13 | TotalmedStrong evidence | 1,170 | |||
“TotalMed provides temporary, contract, and full time staffing services to hospitals, medical groups, health plans, and life sciences companies who require staffing assistance in…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 14 | 1,088 | ||||
“Founded in 2012, Planet Pharma is a global leader in life sciences recruitment and staffing, specializing in Pharmaceuticals, Biotechnology, Medical Device, Labs & Healthcare…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 15 | 969 | ||||
“Founded in 2006, LRS Healthcare is a leading provider of medical staffing.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 16 | 881 | ||||
“IMCS Group is an IT, Healthcare, and Professional Staffing Company that helps Enterprises optimize the business value of their Staffing investments and enables them to achieve…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 17 | 855 | ||||
“MedPro Healthcare Staffing is a Joint Commission certified, leading provider of temporary and contract staffing services to healthcare facilities throughout the United States.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 18 | 762 | ||||
“Integrated Resources Inc.(IRI) is a professional staffing firm specializing in contract, consulting & full time positions in the area of Information Technology, Life Science and…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 19 | 687 | ||||
“We Help You Help People.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 20 | 654 | ||||
“Our team of healthcare experts can help you meet business objectives, such as improved retention, quality, reporting, and cost effectiveness for per diem, contract, travel, or…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 21 | 651 | ||||
“Epic Staffing Group is a diversified national provider of staffing services to the Life Sciences and Healthcare industries.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 22 | 649 | ||||
“Solstas Lab Partners has become one of the nation’s fastest-growing and largest full-service laboratories because we understand that our business is more than just test results.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 23 | Malone Workforce SolutionsIndirect evidence | 646 | |||
“Malone takes care of business by taking care of people.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 24 | 619 | ||||
“Alverno Laboratories manages 32 hospital laboratories and provides laboratory services to two free standing emergency departments and thousands of physician offices and other…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 25 | 614 | ||||
“Sonic Healthcare USA is a subsidiary of Sonic Healthcare Limited, one of the world's largest medical diagnostics companies, providing laboratory services to medical practitioners…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
Showing 25 of 2,046 medical laboratory staffing companies based in the United States
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Medical laboratory staffing companies based in the United States at a glance
As of Sep 5, 2026Companies by employee count
Verified emails by last verification
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 medical laboratory staffing companies, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, 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 “medical laboratory staffing companies”. Matching reads each company's description, not its industry code or its name.
- What we exclude
- Companies whose own description does not clearly place them among medical laboratory staffing 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 an evidence 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, 19,344 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 5, 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.
Medical laboratory staffing companies by metro
Frequently asked
How many medical laboratory staffing companies are there based in the United States?
RevenueBase identified 2,046 medical laboratory staffing 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?
Quest Diagnostics, headquartered in Secaucus, tops this list with the largest team on record.
Which city has the most medical laboratory staffing companies?
New York leads with 71 headquartered companies, followed by Houston (42) and Dallas (41).
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 19,344 verified decision-maker contacts tracked across these 2,046 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 5, 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.
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