Company lists · Data refreshed September 2026

Top 25 Process engineering staffing firms based in the United States

Name: Process engineering staffing firms based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 29, 2026 6,707 companies tracked

RevenueBase identified 6,707 company matches for process engineering staffing firms associated with the United States as of September 2026 and tracks 246,614 professional contacts across them, including 40,886 with verified work emails. Houston is the largest hub.

This list covers company matches for process engineering staffing firms associated with the United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 29, 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.

How to read this list RevenueBase SmartSearch · Exact Recorded Sep 29, 2026 How this list was built

6,707Companies

246,614Contacts tracked

40,886Verified emails

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The 25 largest process engineering staffing firms based in the United States

Ranked by team size

Top 25 of 6,707 company matches for process engineering staffing firms based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 29, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Aerotek	Exact match	Hanover, MD, United StatesHQ recorded Sep 29, 2026	n/a	18,268 contacts →
	Exact match “From economic headwinds to talent complexities, the challenges facing North American industry are real.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
2	Insight Global	Exact match	Atlanta, GA, United StatesHQ recorded Sep 29, 2026	n/a	15,553 contacts →
	Exact match “Insight Global is an international talent and consulting company that delivers business outcomes in an ever-changing world.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
3	Tradesmen International	Exact match	Macedonia, OH, United StatesHQ recorded Sep 29, 2026	10001+	4,999 contacts →
	Exact match “Founded in 1992, Tradesmen International is North America’s premier resource for proven skilled craftsmen and labor consulting services.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
4	Spherion	Exact match	Atlanta, GA, United StatesHQ recorded Sep 29, 2026	10001+	4,263 contacts →
	Exact match “We’re Spherion-a staffing and recruiting pioneer that’s been driving careers and helping businesses grow for over 75 years.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
5	Select Staffing	Exact match	Atlanta, GA, United StatesHQ recorded Sep 29, 2026	10001+	3,934 contacts →
	Exact match “Select Staffing is a leading provider of temporary staffing and employment services in the U.S, with nationwide operations across multiple contingent staffing sectors.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
6	Elwood Staffing Services, INC	Exact match	Columbus, IN, United StatesHQ recorded Sep 29, 2026	n/a	3,481 contacts →
	Exact match “Whether you're looking to find your next great employee, make your next career move, or help a friend find a new job, you can trust that Elwood puts its passion and expertise into…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
7	Beacon Hill	Exact match	Boston, MA, United StatesHQ recorded Sep 29, 2026	1,001-5,000	3,238 contacts →
	Exact match “Beacon Hill was founded to set a new standard in search, career placement and flexible staffing.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
8	Rose International	Exact match	Chesterfield, MO, United StatesHQ recorded Sep 29, 2026	5,001-10,000	2,061 contacts →
	Exact match “Rose International is a leading provider of Staffing and Total Talent Solutions to corporations and government agencies, employing thousands of people across the U.S, Canada and…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
9	Remedy Intelligent Staffing	Exact match	Atlanta, GA, United StatesHQ recorded Sep 29, 2026	10001+	1,948 contacts →
	Exact match “Remedy Intelligent Staffing is a nationwide professional staffing organization with more than 50 years of recruiting and selection expertise to match job candidates with positions…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
10	Addison Group	Exact match	Chicago, IL, United StatesHQ recorded Sep 29, 2026	1,001-5,000	1,840 contacts →
	Exact match “Addison Group provides comprehensive talent solutions and consulting services across diverse practice areas, including Non-Clinical Healthcare, Information Technology (IT), Human…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
11	Labormax Staffing	Exact match	Kearney, MO, United StatesHQ recorded Sep 29, 2026	n/a	1,755 contacts →
	Exact match “LaborMAX Staffing is your reliable provider of quality pre-screened contingent workers.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
12	MEDIX	Exact match	Chicago, IL, United StatesHQ recorded Sep 29, 2026	501-1,000	1,753 contacts →
	Exact match “Medix provides workforce solutions to clients and creates opportunity for talent in the Healthcare, Life Sciences, Engineering and Technology fields.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
13	Elite Staffing INC	Exact match	Chicago, IL, United StatesHQ recorded Sep 29, 2026	10001+	1,661 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
14	Resourcemfg	Exact match	Atlanta, GA, United StatesHQ recorded Sep 29, 2026	5,001-10,000	1,639 contacts →
	Exact match “ResourceMFG places temporary and direct hire employees within the total spectrum of manufacturing jobs including production, quality, maintenance, supervision, and all levels of…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
15	Onin Staffing	Exact match	Birmingham, AL, United StatesHQ recorded Sep 29, 2026	10001+	1,614 contacts →
	Exact match “Ōnin Staffing, a company of The Ōnin Group, is a national light industrial and clerical staffing agency.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
16	Nesco Resource	Exact match	Mayfield Heights, OH, United StatesHQ recorded Sep 29, 2026	501-1,000	1,599 contacts →
	Exact match “Companies need talent.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
17	Infotree Global Solutions	Exact match	Plymouth, MI, United StatesHQ recorded Sep 29, 2026	1,001-5,000	1,545 contacts →
	Exact match “Infotree Global was founded in 2002 in a small office in Canton, MI, Infotree Global had a clear mission; To bring the world’s best talent together with the greatest companies…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
18	Brooksource	Exact match	Indianapolis, IN, United StatesHQ recorded Sep 29, 2026	1,001-5,000	1,480 contacts →
	Exact match “At Brooksource, relationships are at the center of everything we do.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
19	SELF	Exact match	Houston, TX, United StatesHQ recorded Sep 29, 2026	n/a	1,431 contacts →
	Exact match “We are a Full Service Solutions Company specializing in placements of professionals in Information Technology, Finance/Accounting, Energy (front, mid and back office)…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
20	Coworx Staffing Services	Exact match	Morristown, NJ, United StatesHQ recorded Sep 29, 2026	201-500	1,286 contacts →
	Exact match “CoWorx Staffing Services is one of the largest staffing firms in the U.S.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
21	Construction Labor Contractors	Exact match	Round Rock, TX, United StatesHQ recorded Sep 29, 2026	501-1,000	1,234 contacts →
	Exact match “Let us make construction staffing work for you.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
22	Ultimate Staffing	Exact match	Orange, CA, United StatesHQ recorded Sep 29, 2026	501-1,000	1,196 contacts →
	Exact match “Meet Ultimate Staffing: Ultimate Staffing Services, a business line of Roth Staffing Companies, specializes in delivering temporary, temporary-to-hire, and direct hire services…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
23	TRS Staffing Solutions	Exact match	Greenville, United StatesHQ recorded Sep 29, 2026	201-500	1,187 contacts →
	Exact match “TRS Staffing Solutions is a world leading engineering recruitment agency specialising in the recruitment and supply of professional, engineering, technical and field talent.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
24	QPS Employment Group	Exact match	Brookfield, WI, United StatesHQ recorded Sep 29, 2026	201-500	1,019 contacts →
	Exact match “Founded in 1985, QPS Employment Group has grown from a two-person operation to one of the nation's leading staffing and recruiting firms, with more than 300 internal employees…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
25	Lyneer Staffing Solutions	Exact match	Ewing, NJ, United StatesHQ recorded Sep 29, 2026	201-500	1,012 contacts →
	Exact match “The Solution to Your Staffing Needs Lyneer Staffing Solutions is a national workforce solutions company with over 25 years of experience in the staffing industry.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “process engineering staffing firms”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 6,707 process engineering staffing firms based in the United States

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Process engineering staffing firms based in the United States at a glance

As of Sep 29, 2026

16.6%Verified-email coverage

36.8Average contacts per company

11-50Median size (employees)

3.7%Largest-city concentration · Houston

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

2,812

11-50

1,876

51-200

1,179

201-500

439

501-1,000

197

1,001-5,000

150

5,001-10,000

10001+

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 6,707 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

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: Company records associated with the United States whose business descriptions match “process engineering staffing firms” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 40,886 professional contacts with verified work emails across the full matched dataset. 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.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Process engineering staffing firms by metro

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “process engineering staffing firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many process engineering staffing firms are there based in the United States?

RevenueBase identified 6,707 company matches for process engineering staffing firms associated with the United States as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Aerotek tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most process engineering staffing firms?

Houston leads with 245 company records, followed by New York (151) and Atlanta (118).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 40,886 professional contacts with verified work emails tracked across these 6,707 companies; direct dials are available where recorded.

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 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.