Company lists · Data refreshed September 2026

Top 25 Engineering recruitment services based in the United States

Name: Engineering recruitment services based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 2, 2026 12,201 companies tracked

RevenueBase identified 12,201 engineering recruitment services headquartered in the United States as of September 2026 and tracks 308,213 professional contacts across them, including 100,408 with verified work emails and 100,558 with mobile numbers. Houston is the largest hub.

This list covers engineering recruitment services 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 2, 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 RevenueBase Smart Search rating on every row Refreshed Sep 2, 2026 86% judged on-target in blind review

12,201Companies

308,213Contacts tracked

100,408Verified emails

100,558Mobile numbers

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The 25 largest engineering recruitment services based in the United States

Ranked by team size

Top 25 of 12,201 engineering recruitment services based in the United States, ranked by team size, largest first. Data refreshed Sep 2, 2026. RevenueBase Smart Search rates how each company's information relates to engineering recruitment services: 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	HAYS	Indirect evidence	Chicago, IL, United States	5,001-10,000	22,596 contacts →
	Indirect evidence “At Hays, we believe that the right job can transform a person's life - and the right person can transform a business.” Source: RevenueBase Database · checked Sep 2, 2026
2	Terracon	Partial evidence	Tustin, CA, United States	5,001-10,000	6,024 contacts →
	Partial evidence “Terracon is a 100 percent employee-owned consulting engineering firm providing quality services to clients.” Source: RevenueBase Database · checked Sep 2, 2026
3	Michael Baker International	Partial evidence	Pittsburgh, PA, United States	5,001-10,000	4,316 contacts →
	Partial evidence “Michael Baker International is a leading provider of engineering, consulting and technology services spanning four Verticals: Infrastructure, Integrated Design and Advisory (IDA)…” Source: RevenueBase Database · checked Sep 2, 2026
4	Golder	Indirect evidence	Houston, TX, United States	5,001-10,000	3,183 contacts →
	Indirect evidence “Golder was acquired by WSP.” Source: RevenueBase Database · checked Sep 2, 2026
5	ECS Group Of Companies	Partial evidence	Fredericksburg, VA, United States	1,001-5,000	2,201 contacts →
	Partial evidence “ECS Group of Companies is a Chantilly, VA-based consulting engineering firm.” Source: RevenueBase Database · checked Sep 2, 2026
6	IMEG	Partial evidence	Rock Island, IL, United States	1,001-5,000	1,954 contacts →
	Partial evidence “Leaders in Engineering and Innovation.” Source: RevenueBase Database · checked Sep 2, 2026
7	Addison Group	Indirect evidence	Boston, MA, United States	1,001-5,000	1,833 contacts →
	Indirect evidence “Addison Group provides comprehensive talent solutions and consulting services across diverse practice areas, including Non-Clinical Healthcare, Information Technology (IT), Human…” Source: RevenueBase Database · checked Sep 2, 2026
8	Yates Construction	Indirect evidence	Philadelphia, MS, United States	5,001-10,000	1,708 contacts →
	Indirect evidence “Yates Construction is part of The Yates Companies, Inc.” Source: RevenueBase Database · checked Sep 2, 2026
9	CHA Consulting, INC	Partial evidence	Rochester, NY, United States	1,001-5,000	1,650 contacts →
	Partial evidence “CHA Consulting, Inc.(CHA) is an innovative, full-service engineering, design, consulting, and program/construction management firm providing a wide range of technology-enhanced…” Source: RevenueBase Database · checked Sep 2, 2026
10	Bowman Consulting	Partial evidence	Reston, VA, United States	1,001-5,000	1,645 contacts →
	Partial evidence “Headquartered in Reston, Virginia, Bowman is a national engineering services firm delivering infrastructure solutions to customers who own, develop and maintain the built…” Source: RevenueBase Database · checked Sep 2, 2026
11	GEI Consultants, INC	Indirect evidence	Woburn, MA, United States	1,001-5,000	1,577 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 2, 2026
12	UES	Partial evidence	Houston, TX, United States	1,001-5,000	1,571 contacts →
	Partial evidence “UES provides professional engineering, environmental, testing and inspection services to clients across the United States.” Source: RevenueBase Database · checked Sep 2, 2026
13	Chiyoda Corporation	Indirect evidence	Houston, TX, United States	5,001-10,000	1,497 contacts →
	Indirect evidence “Since its establishment in 1948, Chiyoda's business field has covered the energy sector such as oil and gas industry including energy conservation, and chemicals, environment…” Source: RevenueBase Database · checked Sep 2, 2026
14	Brooksource	Indirect evidence	Royal Oak, MI, United States	1,001-5,000	1,469 contacts →
	Indirect evidence “Here at Brooksource, relationships are at the center of everything we do.” Source: RevenueBase Database · checked Sep 2, 2026
15	Barr Engineering CO	Partial evidence	Washington, United States	1,001-5,000	1,098 contacts →
	Partial evidence “Barr provides engineering and environmental consulting services to clients across the Midwest, throughout the Americas, and around the world.” Source: RevenueBase Database · checked Sep 2, 2026
16	Gulf Companies	Indirect evidence	Houston, TX, United States	1,001-5,000	1,060 contacts →
	Indirect evidence “At Gulf Companies, we are driven by our mission to serve a vital role in the global energy industry.” Source: RevenueBase Database · checked Sep 2, 2026
17	ARI	Partial evidence	East Peoria, IL, United States	1,001-5,000	975 contacts →
	Partial evidence “ARi is a global engineering firm headquartered in East Peoria, Illinois, USA offering services for: Embedded Software, Product Engineering, Manufacturing Engineering and Testing &…” Source: RevenueBase Database · checked Sep 2, 2026
18	Remx The Workforce Experts	Indirect evidence	Los Angeles, CA, United States	1,001-5,000	901 contacts →
	Indirect 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 2, 2026
19	Mesa Associates, INC	Partial evidence	Fort Worth, TX, United States	1,001-5,000	892 contacts →
	Partial evidence “Mesa is a full service engineering, procurement, and construction management firm specializing in providing engineering services to electric utility, heavy industrial, and…” Source: RevenueBase Database · checked Sep 2, 2026
20	The Planet Group	Indirect evidence	Alpharetta, GA, United States	1,001-5,000	831 contacts →
	Indirect evidence “The Planet Group is a global advisory and staffing firm operating at the intersection of talent and transformation.” Source: RevenueBase Database · checked Sep 2, 2026
21	Professional Service Industries, Inc. PSI	Indirect evidence	Cleveland, OH, United States	1,001-5,000	780 contacts →
	Indirect evidence “Intertek, a leading provider of quality solutions to industries around the world, has completed the acquisition of Professional Service Industries, Inc.(PSI), a leading…” Source: RevenueBase Database · checked Sep 2, 2026
22	Primero	Partial evidence	Houston, TX, United States	1,001-5,000	733 contacts →
	Partial evidence “Primero is a leading multidisciplinary engineering, procurement, and construction company specialising in delivering comprehensive, fully integrated solutions to the mining…” Source: RevenueBase Database · checked Sep 2, 2026
23	Tower Engineering Professionals	Indirect evidence	Raleigh, NC, United States	1,001-5,000	703 contacts →
	Indirect evidence “Tower Engineer Professionals was founded in 1997 by two tower-climbing engineers.” Source: RevenueBase Database · checked Sep 2, 2026
24	Nigel Frank International	Partial evidence	Philadelphia, PA, United States	1,001-5,000	689 contacts →
	Partial evidence “We’re the recognized global leaders in Microsoft recruitment; it’s all we do.” Source: RevenueBase Database · checked Sep 2, 2026
25	Solomon Page	Indirect evidence	New York, NY, United States	1,001-5,000	682 contacts →
	Indirect evidence “Founded in 1990, Solomon Page is a leading staffing and executive search firm headquartered in New York City with offices across the United States.” Source: RevenueBase Database · checked Sep 2, 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: engineering recruitment services. 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 engineering recruitment services.
Partial evidence: Its own public description names part of engineering recruitment services, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name engineering recruitment services. 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 12,201 engineering recruitment services based in the United States

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Engineering recruitment services based in the United States at a glance

As of Sep 2, 2026

32.6%Verified-email coverage

32.6%Mobile-number coverage

25.3Average contacts per company

1-10Median size (employees)

3.6%Largest-city concentration · Houston

Sep 2, 2026Page data refreshed

Companies by employee count

1-10

6,385

11-50

3,806

51-200

1,448

201-500

338

501-1,000

1,001-5,000

5,001-10,000

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 engineering recruitment services, 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 “engineering recruitment services”. 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 engineering recruitment services), 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 engineering recruitment services, 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, 100,408 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 2, 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.

Engineering recruitment services by metro

Engineering recruitment services in Houston442
Engineering recruitment services in New York392
Engineering recruitment services in Austin201
Engineering recruitment services in Dallas175
Engineering recruitment services in Chicago172
Engineering recruitment services in Atlanta164
Engineering recruitment services in Los Angeles155

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 engineering recruitment services, 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 engineering recruitment services are there based in the United States?

RevenueBase identified 12,201 engineering recruitment services 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?

HAYS, headquartered in Chicago, tops this list with the largest team on record.

Which city has the most engineering recruitment services?

Houston leads with 442 headquartered companies, followed by New York (392) and Austin (201).

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 100,408 verified decision-maker contacts tracked across these 12,201 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 2, 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.