Company lists · Data refreshed September 2026

Top 25 Process engineering staffing based in the United States

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

Compiled by the RevenueBase Data Team Data refreshed Sep 5, 2026 1,665 companies tracked

RevenueBase identified 1,665 process engineering staffing headquartered in the United States as of September 2026 and tracks 44,103 professional contacts across them, including 7,756 with verified work emails and 13,728 with mobile numbers. Houston is the largest hub.

This list covers process engineering staffing 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 5, 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 5, 2026 86% judged on-target in blind review

1,665Companies

44,103Contacts tracked

7,756Verified emails

13,728Mobile numbers

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The 25 largest process engineering staffing based in the United States

Ranked by team size

Top 25 of 1,665 process engineering staffing based in the United States, ranked by team size, largest first. Data refreshed Sep 5, 2026. RevenueBase Smart Search rates how each company's information relates to process engineering staffing: 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Resourcemfg	Indirect evidence	Atlanta, GA, United StatesHQ checked Sep 5, 2026	5,001-10,000	1,639 contacts →
	Indirect evidence “ResourceMFG places temporary and direct hire employees within the total spectrum of manufacturing jobs including production, quality, maintenance, supervision, and all levels of…” Source: RevenueBase Database · checked Sep 5, 2026
2	Nesco Resource	Indirect evidence	Mayfield Heights, OH, United StatesHQ checked Sep 5, 2026	501-1,000	1,599 contacts →
	Indirect evidence “Companies need talent.” Source: RevenueBase Database · checked Sep 5, 2026
3	Brooksource	Indirect evidence	Indianapolis, IN, United StatesHQ checked Sep 5, 2026	1,001-5,000	1,480 contacts →
	Indirect evidence “At Brooksource, relationships are at the center of everything we do.” Source: RevenueBase Database · checked Sep 5, 2026
4	TRS Staffing Solutions	Strong evidence	Greenville, United StatesHQ checked Sep 5, 2026	201-500	1,187 contacts →
	Strong evidence “TRS Staffing Solutions is a world leading engineering recruitment agency specialising in the recruitment and supply of professional, engineering, technical and field talent.” Source: RevenueBase Database · checked Sep 5, 2026
5	QPS Employment Group	Partial evidence	Brookfield, WI, United StatesHQ checked Sep 5, 2026	201-500	1,019 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 5, 2026
6	Remx The Workforce Experts	Partial evidence	Atlanta, GA, United StatesHQ checked Sep 5, 2026	1,001-5,000	901 contacts →
	Partial evidence “RemX is the professional staffing division of EmployBridge, a $3 billion staffing organization with more than 600 offices in the U.S.” Source: RevenueBase Database · checked Sep 5, 2026
7	Eastridge Workforce Solutions	Partial evidence	San Diego, CA, United StatesHQ checked Sep 5, 2026	n/a	803 contacts →
	Partial evidence “Eastridge Workforce Solutions is a trusted staffing partner helping businesses build stronger, more productive teams across industrial and professional sectors.” Source: RevenueBase Database · checked Sep 5, 2026
8	Trojan Labor	Partial evidence	Goose Creek, SC, United StatesHQ checked Sep 5, 2026	n/a	732 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 5, 2026
9	Automation Personnel Services, INC	Indirect evidence	Birmingham, AL, United StatesHQ checked Sep 5, 2026	10001+	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 5, 2026
10	Volt Technical Resources	Indirect evidence	Orange, CA, United StatesHQ checked Sep 5, 2026	5,001-10,000	584 contacts →
	Indirect evidence “A Six Sigma Company ~61 years in the industry ~Nationwide 4 million+ candidate database ~Fortune Company ~Extensive E-Recruiting capabilities ~Reference and Employment check…” Source: RevenueBase Database · checked Sep 5, 2026
11	Link Staffing	Partial evidence	Houston, TX, United StatesHQ checked Sep 5, 2026	1,001-5,000	579 contacts →
	Partial evidence “LINK Staffing has been placing competent, dependable talent with Texas employers since 1980.” Source: RevenueBase Database · checked Sep 5, 2026
12	STS Technical Services	Partial evidence	Brookfield, WI, United StatesHQ checked Sep 5, 2026	51-200	543 contacts →
	Partial evidence “STS Technical Services is a Top 100 Staffing Firm that’s partnered with some of the largest names in the aerospace, manufacturing, defense and industrial industries.” Source: RevenueBase Database · checked Sep 5, 2026
13	EASI	Indirect evidence	Hanover, MD, United StatesHQ checked Sep 5, 2026	1,001-5,000	526 contacts →
	Indirect evidence “EASi is now Actalent.” Source: RevenueBase Database · checked Sep 5, 2026
14	Trillium Construction Services	Indirect evidence	Kalamazoo, MI, United StatesHQ checked Sep 5, 2026	201-500	494 contacts →
	Indirect evidence “Trillium Construction Services has over a quarter of a century of experience in the construction recruiting industry.” Source: RevenueBase Database · checked Sep 5, 2026
15	Black Diamond Networks	Strong evidence	Andover, MA, United StatesHQ checked Sep 5, 2026	51-200	481 contacts →
	Strong evidence “Delivering Contingent Staffing, Specialized Consulting, and Managed Project Services (MSP, FSP, FSO) for Engineering, IT, and Lifescience enterprises.” Source: RevenueBase Database · checked Sep 5, 2026
16	NSC	Partial evidence	Atlanta, GA, United StatesHQ checked Sep 5, 2026	1,001-5,000	473 contacts →
	Partial evidence “Welcome to NSC, the Skilled Staffing Experts!” Source: RevenueBase Database · checked Sep 5, 2026
17	Entegee	Partial evidence	Burlington, MA, United StatesHQ checked Sep 5, 2026	201-500	468 contacts →
	Partial evidence “For the last sixty years Entegee has provided Fortune 500 and other companies with highly qualified engineering and technical personnel.” Source: RevenueBase Database · checked Sep 5, 2026
18	Bartech Staffing	Indirect evidence	Southfield, MI, United StatesHQ checked Sep 5, 2026	1,001-5,000	447 contacts →
	Indirect evidence “Trusted for Talent.” Source: RevenueBase Database · checked Sep 5, 2026
19	Accurate Personnel	Partial evidence	Schaumburg, IL, United StatesHQ checked Sep 5, 2026	201-500	442 contacts →
	Partial evidence “Mission: At Accurate Personnel, our focus is on forming strong and lasting partnerships with our clients and employees to provide the best possible staffing solutions in the…” Source: RevenueBase Database · checked Sep 5, 2026
20	Sterling Engineering	Strong evidence	Westchester, IL, United StatesHQ checked Sep 5, 2026	501-1,000	402 contacts →
	Strong evidence “Sterling is an award-winning professional engineering consulting and technical staffing company.” Source: RevenueBase Database · checked Sep 5, 2026
21	Laborworks, INC	Partial evidence	Gig Harbor, WA, United StatesHQ checked Sep 5, 2026	51-200	376 contacts →
	Partial evidence “LaborWorks is a national, privately held industrial staffing specialty company based in Gig Harbor, Washington.” Source: RevenueBase Database · checked Sep 5, 2026
22	RHM Staffing Solutions	Partial evidence	Oak Brook, IL, United StatesHQ checked Sep 5, 2026	51-200	357 contacts →
	Partial evidence “RHM Staffing Solutions is an award-winning staffing firm connecting top talent with employers through contract, contract-to-hire, and direct hire roles.” Source: RevenueBase Database · checked Sep 5, 2026
23	Labour Ready Temporary Service	Partial evidence	Tacoma, WA, United StatesHQ checked Sep 5, 2026	51-200	336 contacts →
	Partial evidence “We offer powered staffing solutions for your business.” Source: RevenueBase Database · checked Sep 5, 2026
24	NCW	Partial evidence	Indianapolis, IN, United StatesHQ checked Sep 5, 2026	51-200	316 contacts →
	Partial evidence “NCW is a professional recruiting and staffing company with over two decades of experience.” Source: RevenueBase Database · checked Sep 5, 2026
25	Seek Careers Staffing	Indirect evidence	Grafton, WI, United StatesHQ checked Sep 5, 2026	51-200	313 contacts →
	Indirect evidence “Having the right person or the right position is critical to your success.” Source: RevenueBase Database · checked Sep 5, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: process engineering staffing. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names process engineering staffing.
Partial evidence: Its own public description names part of process engineering staffing, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name process engineering staffing. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 1,665 process engineering staffing based in the United States

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Process engineering staffing based in the United States at a glance

As of Sep 5, 2026

17.6%Verified-email coverage

31.1%Mobile-number coverage

26.5Average contacts per company

11-50Median size (employees)

4.9%Largest-city concentration · Houston

Sep 5, 2026Page data refreshed

Companies by employee count

1-10

821

11-50

418

51-200

257

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

7,1690–30

52331–60

461–90

190–180

59180+

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 process engineering staffing, 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 “process engineering staffing”. 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 process engineering staffing), 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 process engineering staffing, 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, 7,756 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.

Process engineering staffing by metro

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 process engineering staffing, 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 process engineering staffing are there based in the United States?

RevenueBase identified 1,665 process engineering staffing 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?

Resourcemfg, headquartered in Atlanta, tops this list with the largest team on record.

Which city has the most process engineering staffing?

Houston leads with 82 headquartered companies, followed by Austin (31) and Atlanta (23).

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 7,756 verified decision-maker contacts tracked across these 1,665 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 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.