Company lists · Data refreshed September 2026

Top 25 Environmental lab staffing agencies worldwide

RevenueBase identified 2,275 environmental lab staffing agencies worldwide as of September 2026 and tracks 42,013 professional contacts across them, including 8,669 with verified work emails. The United States is the largest market and New York the largest hub.

This list covers environmental lab staffing agencies worldwide, 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 28, 2026. Country and city lists for environmental lab staffing agencies follow the table.

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 28, 2026 86% judged on-target in blind review
2,275Companies
42,013Contacts tracked
8,669Verified emails
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The 25 largest environmental lab staffing agencies worldwide

Ranked by team size
Top 25 of 2,275 environmental lab staffing agencies worldwide, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to environmental lab staffing agencies: 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 evidenceMinneapolis, MN, United StatesHQ checked Sep 28, 20261,001-5,0002,228 contacts →

Indirect evidence

“Pace® Science and Technology Company makes the world a safer, healthier place.”

Source: RevenueBase Database · checked Sep 28, 2026
2Partial evidenceDecatur, AL, United StatesHQ checked Sep 28, 20261,001-5,000956 contacts →

Partial evidence

“Alliance is a new kind of environmental services company-powered by innovation, focused on service, and committed to client success.”

Source: RevenueBase Database · checked Sep 28, 2026
3Partial evidenceGoose Creek, SC, United StatesHQ checked Sep 28, 2026n/a732 contacts →

Partial evidence

“Trojan Labor Specializes in matching Customers who have industrial and Light Industrial staffing needs while never forgetting who the CUSTOMER is.”

Source: RevenueBase Database · checked Sep 28, 2026
4Partial evidenceCinnaminson, NJ, United StatesHQ checked Sep 28, 2026501-1,000719 contacts →

Partial evidence

“As the nation's leading environmental testing firm, EMSL's network of nationwide laboratories has been providing quality analytical services since 1981.”

Source: RevenueBase Database · checked Sep 28, 2026
5Partial evidenceKalamazoo, MI, United StatesHQ checked Sep 28, 20261,001-5,000653 contacts →

Partial evidence

“Trillium Staffing Solutions is an employment service specializing in staffing, training, testing, on-site services, human resources and safety consulting.”

Source: RevenueBase Database · checked Sep 28, 2026
6Indirect evidenceBirmingham, AL, United StatesHQ checked Sep 28, 202610001+624 contacts →

Indirect evidence

“Automation Personnel Services was founded in Birmingham, AL almost 30 years ago and has expanded coast to coast with 40 Branch offices in eleven states.”

Source: RevenueBase Database · checked Sep 28, 2026
7Indirect evidenceNashville, TN, United StatesHQ checked Sep 28, 2026n/a618 contacts →

Indirect evidence

“HireQuest Direct specializes in day labor, general labor, disaster recovery, skilled labor, janitorial, site clean-up, composite crew, demolition, administrative, hospitality…”

Source: RevenueBase Database · checked Sep 28, 2026
8Partial evidenceNorthbrook, IL, United StatesHQ checked Sep 28, 2026201-500560 contacts →

Partial evidence

“PROMAN Staffing has more than 50 offices in 12+ states across the USA.”

Source: RevenueBase Database · checked Sep 28, 2026
9Partial evidenceAtlanta, GA, United StatesHQ checked Sep 28, 20261,001-5,000473 contacts →

Partial evidence

“Welcome to NSC, the Skilled Staffing Experts!”

Source: RevenueBase Database · checked Sep 28, 2026
10Indirect evidenceFranceHQ checked Sep 28, 2026n/a469 contacts →

Indirect evidence

“Vitalis Médical est un réseau d’agences de recrutement en intérim, vacation, CDD et CDI, qui développe son expertise métier dans 3 domaines - Paramédical - Médical - Social Nos…”

Source: RevenueBase Database · checked Sep 28, 2026
11Partial evidenceNorth Salt Lake, UT, United StatesHQ checked Sep 28, 202651-200388 contacts →

Partial evidence

“In 1969, we evolved from a local staffing firm to a national leader, specializing in light industrial, non-clinical hospital, and clerical roles.”

Source: RevenueBase Database · checked Sep 28, 2026
12Indirect evidenceNorth Little Rock, AR, United StatesHQ checked Sep 28, 2026501-1,000349 contacts →

Indirect evidence

“Our laboratory service experts provide clients with precision testing support, innovative scientific approaches, and high-quality data that delivers a sense of certainty.”

Source: RevenueBase Database · checked Sep 28, 2026
13Indirect evidenceSumaré, BrazilHQ checked Sep 28, 2026201-500325 contacts →

Indirect evidence

“Life Sciences Testing Group”

Source: RevenueBase Database · checked Sep 28, 2026
14Indirect evidenceMedellin, ColombiaHQ checked Sep 28, 20265,001-10,000316 contacts →

Indirect evidence

“Complementos Humanos empresa dedicada a la prestación de servicios de Selección y Administración de Personal Temporal, se encuentra comprometida en ofrecer procesos de alta…”

Source: RevenueBase Database · checked Sep 28, 2026
15Indirect evidenceNew York, NY, United StatesHQ checked Sep 28, 20261,001-5,000262 contacts →

Indirect evidence

“For more than 30 years, At Your Service has been helping our clients produce memorable moments.”

Source: RevenueBase Database · checked Sep 28, 2026
16Indirect evidenceWestborough, MA, United StatesHQ checked Sep 28, 2026501-1,000254 contacts →

Indirect evidence

“Since 1987, Alpha Analytical, Inc.”

Source: RevenueBase Database · checked Sep 28, 2026
17Indirect evidenceAlicante/alacant, SpainHQ checked Sep 28, 2026201-500240 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 28, 2026
18Partial evidenceSpringfield, MO, United StatesHQ checked Sep 28, 2026201-500238 contacts →

Partial evidence

“Environmental Works, Inc.(EWI) offers truly comprehensive environmental solutions for a variety of industries, businesses, and municipalities.”

Source: RevenueBase Database · checked Sep 28, 2026
19Indirect evidenceSantiago, ChileHQ checked Sep 28, 2026201-500234 contacts →

Indirect evidence

“Con más de 25 años de experiencia, en ANAM somos líderes en monitoreos y análisis físicos, químicos y microbiológicos de matrices ambientales.”

Source: RevenueBase Database · checked Sep 28, 2026
20Partial evidenceCastellon, SpainHQ checked Sep 28, 2026201-500229 contacts →

Partial evidence

“IPROMA is one of the leading companies in the fields of environmental laboratory analysis, technical advice and industrial hygiene.”

Source: RevenueBase Database · checked Sep 28, 2026
21Partial evidenceHertfordshire, United KingdomHQ checked Sep 28, 2026201-500218 contacts →

Partial evidence

“Founded in 2003, Normec i2 Analytical is one of Europe's leading environmental testing companies providing its customers a comprehensive range of analytical, monitoring and…”

Source: RevenueBase Database · checked Sep 28, 2026
22Partial evidenceSouth Bend, IN, United StatesHQ checked Sep 28, 2026n/a201 contacts →

Partial evidence

“Specialized Staffing Solutions employs thousands of employees each year in the Michiana region for Light Industrial, Office Administrative, Technical and Direct Professional…”

Source: RevenueBase Database · checked Sep 28, 2026
23Partial evidenceFalls Church, VA, United StatesHQ checked Sep 28, 2026501-1,000199 contacts →

Partial evidence

“NVT Staffing is a direct reflection of the rapid growth and expansion of our parent company, Northern Virginia Temporaries, Inc.”

Source: RevenueBase Database · checked Sep 28, 2026
24Strong evidenceNeedham, MA, United StatesHQ checked Sep 28, 2026n/a187 contacts →

Strong evidence

“Resource Options Inc.(ROI) provides custom staffing solutions to the design, construction, environmental, & emergency response industries.”

Source: RevenueBase Database · checked Sep 28, 2026
25Indirect evidenceHamburg, GermanyHQ checked Sep 28, 20261,001-5,000180 contacts →

Indirect evidence

“Wir sind expertum – Ihr Karrierepartner auf dem Weg zum passenden Job.”

Source: RevenueBase Database · checked Sep 28, 2026

Showing 25 of 2,275 environmental lab staffing agencies worldwide

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Environmental lab staffing agencies worldwide at a glance

As of Sep 28, 2026
20.6%Verified-email coverage
18.5Average contacts per company
11-50Median size (employees)
1.1%Largest-city concentration · New York
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
874
11-50
833
51-200
377
201-500
97
501-1,000
38
1,001-5,000
38
5,001-10,000
3
10001+
3

Email recency is reported on each country list linked below.

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 environmental lab staffing agencies, 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.
Coverage
Every country. Country and city lists for environmental lab staffing agencies are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “environmental lab staffing agencies”. 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 environmental lab staffing agencies), 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 environmental lab staffing agencies, and records with no verified work email.
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, 8,669 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 28, 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.

Environmental lab staffing agencies by location

9 lists · largest first

Every Environmental lab staffing agencies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

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 environmental lab staffing agencies, 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 environmental lab staffing agencies are there worldwide?

RevenueBase identified 2,275 environmental lab staffing agencies worldwide 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?

Pace Analytical Services, headquartered in Minneapolis, tops this list with the largest team on record.

Which country has the most environmental lab staffing agencies?

The United States leads with 954 companies, followed by Brazil (141) and the Netherlands (100). Every environmental lab staffing agencies list by country and city is linked on this page.

Which city has the most environmental lab staffing agencies?

New York leads with 24 headquartered companies, followed by Houston (21) and London (10).

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 8,669 verified decision-maker contacts tracked across these 2,275 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 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 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.