Company lists · Data refreshed September 2026

Top 24 Cleanroom staffing agencies based in Boston, United States

RevenueBase identified 45 cleanroom staffing agencies headquartered in Boston, United States as of September 2026 and tracks 678 professional contacts across them, including 127 with verified work emails. Across the United States, Houston is the largest hub for this category (141 companies); Boston has 45.

This list covers cleanroom staffing agencies headquartered in Boston, 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 27, 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 27, 2026 86% judged on-target in blind review
45Companies
678Contacts tracked
127Verified emails
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The 24 largest cleanroom staffing agencies based in Boston, United States

Ranked by team size
Top 24 of 45 cleanroom staffing agencies based in Boston, United States, ranked by team size, largest first. Data refreshed Sep 27, 2026. RevenueBase Smart Search rates how each company's information relates to cleanroom 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
1Partial evidenceBoston, MA, United StatesHQ checked Sep 27, 202651-200133 contacts →

Partial evidence

“ProPivotal (formerly PSG - Professional Staffing Group) is one of New England’s largest regional staffing and recruiting firms, founded in 1996 and proudly serving the Boston area…”

Source: RevenueBase Database · checked Sep 27, 2026
2Partial evidenceBoston, MA, United StatesHQ checked Sep 27, 2026201-500107 contacts →

Partial evidence

“Founded in Digital Prospectors is a leading technology, engineering, life sciences, and government services staffing firm working with both the private and public sector.”

Source: RevenueBase Database · checked Sep 27, 2026
3Indirect evidenceBoston, MA, United StatesHQ checked Sep 27, 202651-20075 contacts →

Indirect evidence

“Finding top talent in the hyper-competitive life science industries gets harder each day.”

Source: RevenueBase Database · checked Sep 27, 2026
4Partial evidenceBoston, MA, United StatesHQ checked Sep 27, 202651-20046 contacts →

Partial evidence

“There are staffing agencies in the U.S.”

Source: RevenueBase Database · checked Sep 27, 2026
5Partial evidenceBoston, MA, United StatesHQ checked Sep 27, 202611-5029 contacts →

Partial evidence

“Monument Staffing is a boutique staffing agency in Boston, bringing over two decades of experience in administrative recruiting.”

Source: RevenueBase Database · checked Sep 27, 2026
6Partial evidenceBoston, MA, United StatesHQ checked Sep 27, 202611-5027 contacts →

Partial evidence

“Established in 1983, KNF & T Staffing Resources is an award winning staffing firm with offices in Boston and Westborough, MA.”

Source: RevenueBase Database · checked Sep 27, 2026
7Indirect evidenceBoston, MA, United StatesHQ checked Sep 27, 202611-5025 contacts →

Indirect evidence

“Ceres means "to grow" and we are helping technology organizations Grow IT Together.”

Source: RevenueBase Database · checked Sep 27, 2026
8Indirect evidenceBoston, MA, United StatesHQ checked Sep 27, 202651-20018 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 27, 2026
9Partial evidenceBoston, MA, United StatesHQ checked Sep 27, 202611-5017 contacts →

Partial evidence

“Highview Staffing is your source for contract and full time placement of technology professionals!”

Source: RevenueBase Database · checked Sep 27, 2026
10Indirect evidenceBoston, MA, United StatesHQ checked Sep 27, 20261-1013 contacts →

Indirect evidence

“Craft Recruiting is a different kind of recruiting agency.”

Source: RevenueBase Database · checked Sep 27, 2026
11Partial evidenceBoston, MA, United StatesHQ checked Sep 27, 20261-1013 contacts →

Partial evidence

“At National Staffing Consultants (NSC), we're passionate about fostering groundbreaking advancements in life sciences and healthcare.”

Source: RevenueBase Database · checked Sep 27, 2026
12Indirect evidenceBoston, MA, United StatesHQ checked Sep 27, 202611-5010 contacts →

Indirect evidence

“Relationships.”

Source: RevenueBase Database · checked Sep 27, 2026
13Partial evidenceBoston, MA, United StatesHQ checked Sep 27, 202611-508 contacts →

Partial evidence

“A Full Cycle Staffing Firm, focused on securing top-tier talent for both short and long term contracts within Federal Agencies.”

Source: RevenueBase Database · checked Sep 27, 2026
14Partial evidenceBoston, MA, United StatesHQ checked Sep 27, 202611-507 contacts →

Partial evidence

“We are your premier partner in staffing solutions for Accounting & Finance, Human Resources, and Administrative roles.”

Source: RevenueBase Database · checked Sep 27, 2026
15Partial evidenceBoston, MA, United StatesHQ checked Sep 27, 202651-2006 contacts →

Partial evidence

“Carlton National Resources is a national staffing firm focused on temporary, individual contract placement of senior level Hardware and Software Engineers and Life Science…”

Source: RevenueBase Database · checked Sep 27, 2026
16Indirect evidenceBoston, MA, United StatesHQ checked Sep 27, 202611-504 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 27, 2026
17Partial evidenceBoston, MA, United StatesHQ checked Sep 27, 202611-504 contacts →

Partial evidence

“Founded in 2004, Alliance Networks is a full-service staffing firm who specializes in helping our partners grow their permanent and contingent workforce.”

Source: RevenueBase Database · checked Sep 27, 2026
18Partial evidenceBoston, United StatesHQ checked Sep 27, 202611-503 contacts →

Partial evidence

“ARI Staffing Group is headquartered in the greater Boston area – one of the best places to find top notch talent.”

Source: RevenueBase Database · checked Sep 27, 2026
19Partial evidenceBoston, MA, United StatesHQ checked Sep 27, 20261-103 contacts →

Partial evidence

“Technical staffing consultants specializing in identifying and evaluating engineering professionals for direct hire.”

Source: RevenueBase Database · checked Sep 27, 2026
20Indirect evidenceBoston, United StatesHQ checked Sep 27, 202611-503 contacts →

Indirect evidence

“GTS, Inc.(Global Technical Search) is a leading provider of IT and Back Office recruiting and placement services in the United States.”

Source: RevenueBase Database · checked Sep 27, 2026
21Partial evidenceBoston, United StatesHQ checked Sep 27, 20261-103 contacts →

Partial evidence

“Located in Massachusetts, REHM Staffing is a premier staffing organization with over a decade of expertise in national recruitment across all levels.”

Source: RevenueBase Database · checked Sep 27, 2026
22Indirect evidenceBoston, MA, United StatesHQ checked Sep 27, 202611-502 contacts →

Indirect evidence

“Staff Insight brings over two decades of experience in placing qualified candidates in various industries.”

Source: RevenueBase Database · checked Sep 27, 2026
23Indirect evidenceBoston, MA, United StatesHQ checked Sep 27, 20261-102 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 27, 2026
24Partial evidenceBoston, MA, United StatesHQ checked Sep 27, 20261-101 contacts →

Partial evidence

“A professional IT Staffing agency with expertise in contract and full-time hire recruiting.”

Source: RevenueBase Database · checked Sep 27, 2026

Showing 24 of 45 cleanroom staffing agencies based in Boston, United States

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Cleanroom staffing agencies based in Boston, United States at a glance

As of Sep 27, 2026
18.7%Verified-email coverage
15.1Average contacts per company
11-50Median size (employees)
Sep 27, 2026Page data refreshed

Companies by employee count

1-10
22
11-50
15
51-200
6
201-500
2

Email recency for this list is measured across the whole United States list rather than for Boston, so it is reported there. Company counts and contact totals on this page are exact for Boston, over 45 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 cleanroom 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.
What qualifies
Companies headquartered in Boston, United States whose own description of what they do matches “cleanroom 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 cleanroom 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 cleanroom staffing agencies, and records with no verified work email. Companies headquartered outside Boston 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, 127 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 27, 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 cleanroom 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 cleanroom staffing agencies are there based in Boston, United States?

RevenueBase identified 45 cleanroom staffing agencies headquartered in Boston, 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?

Propivotal, headquartered in Boston, tops this list with the largest team on record.

Which city in the United States has the most cleanroom staffing agencies?

Houston leads the United States with 141 headquartered companies, followed by New York (129) and Dallas (91). Boston has 45.

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 127 verified decision-maker contacts tracked across these 45 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 27, 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.