Company lists · Data refreshed September 2026

Top 25 Civil engineering staffing firms worldwide

Name: Civil engineering staffing firms worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 27, 2026 36,238 companies tracked

RevenueBase identified 36,238 civil engineering staffing firms worldwide as of September 2026 and tracks 640,919 professional contacts across them, including 173,870 with verified work emails. The United States is the largest market and London the largest hub.

This list covers civil engineering staffing firms 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 27, 2026. Country and city lists for civil engineering staffing firms 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 27, 2026 86% judged on-target in blind review

36,238Companies

640,919Contacts tracked

173,870Verified emails

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The 25 largest civil engineering staffing firms worldwide

Ranked by team size

Top 25 of 36,238 civil engineering staffing firms worldwide, ranked by team size, largest first. Data refreshed Sep 27, 2026. RevenueBase Smart Search rates how each company's information relates to civil engineering staffing firms: 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	CDM Smith	Indirect evidence	Boston, MA, United StatesHQ checked Sep 27, 2026	5,001-10,000	7,527 contacts →
	Indirect evidence “CDM Smith is shaping what’s next, now, with world class solutions in water, environment, transportation and energy to public and private clients worldwide.” Source: RevenueBase Database · checked Sep 27, 2026
2	Terracon	Partial evidence	Olathe, KS, United StatesHQ checked Sep 27, 2026	5,001-10,000	6,113 contacts →
	Partial evidence “Terracon is a 100 percent employee-owned consulting engineering firm providing quality services to clients.” Source: RevenueBase Database · checked Sep 27, 2026
3	Tradesmen International	Indirect evidence	Macedonia, OH, United StatesHQ checked Sep 27, 2026	10001+	4,999 contacts →
	Indirect evidence “Founded in 1992, Tradesmen International is North America’s premier resource for proven skilled craftsmen and labor consulting services.” Source: RevenueBase Database · checked Sep 27, 2026
4	Spherion	Partial evidence	Atlanta, GA, United StatesHQ checked Sep 27, 2026	10001+	4,263 contacts →
	Partial evidence “We’re Spherion-a staffing and recruiting pioneer that’s been driving careers and helping businesses grow for over 75 years.” Source: RevenueBase Database · checked Sep 27, 2026
5	Murphy	Partial evidence	London, United KingdomHQ checked Sep 27, 2026	1,001-5,000	3,095 contacts →
	Partial evidence “Murphy is a leading international, multi-disciplined engineering and construction company founded in 1951 that improves life by delivering world-class infrastructure.” Source: RevenueBase Database · checked Sep 27, 2026
6	Multiconsult	Indirect evidence	Oslo, NorwayHQ checked Sep 27, 2026	1,001-5,000	2,553 contacts →
	Indirect evidence “Multiconsult Norway is one of the leading firms of architectures, consulting engineers and designers in Norway.” Source: RevenueBase Database · checked Sep 27, 2026
7	Samsic Emploi	Indirect evidence	Rennes, FranceHQ checked Sep 27, 2026	5,001-10,000	2,454 contacts →
	Indirect evidence “Samsic Emploi a été classée meilleure enseigne de travail temporaire par Capital, pour la 4ème année consécutive.” Source: RevenueBase Database · checked Sep 27, 2026
8	ECS Group Of Companies	Partial evidence	Chantilly, VA, United StatesHQ checked Sep 27, 2026	1,001-5,000	2,210 contacts →
	Partial evidence “ECS Group of Companies is a Chantilly, VA-based consulting engineering firm.” Source: RevenueBase Database · checked Sep 27, 2026
9	Colliers Engineering & Design	Partial evidence	Holmdel, NJ, United StatesHQ checked Sep 27, 2026	1,001-5,000	2,049 contacts →
	Partial evidence “Colliers Engineering & Design, an affiliate of Colliers, is a trusted provider of multi-discipline engineering and architecture, design and consulting services to public and…” Source: RevenueBase Database · checked Sep 27, 2026
10	Ahluwalia Contracts India LTD	Indirect evidence	New Delhi, IndiaHQ checked Sep 27, 2026	5,001-10,000	2,046 contacts →
	Indirect evidence “With specialized experience in the Construction Industry for more than 50 years, we, at Ahluwalia Contracts, have carved a niche for ourselves in the industry as one of the…” Source: RevenueBase Database · checked Sep 27, 2026
11	Start People	Indirect evidence	Almere, NetherlandsHQ checked Sep 27, 2026	1,001-5,000	2,027 contacts →
	Indirect evidence “Al meer dan vijfendertig jaar verbindt Start People mens en werk.” Source: RevenueBase Database · checked Sep 27, 2026
12	IMEG	Partial evidence	Rock Island, IL, United StatesHQ checked Sep 27, 2026	1,001-5,000	1,985 contacts →
	Partial evidence “Leaders in Engineering and Innovation.” Source: RevenueBase Database · checked Sep 27, 2026
13	Synergie Italia	Indirect evidence	Torino, ItalyHQ checked Sep 27, 2026	501-1,000	1,748 contacts →
	Indirect evidence “L’Italia è piena di talenti: il nostro lavoro è riconoscerli!” Synergie Italia S.p.A.” Source: RevenueBase Database · checked Sep 27, 2026
14	JMT	Indirect evidence	Serving Clients Across The Us, MD, United StatesHQ checked Sep 27, 2026	1,001-5,000	1,688 contacts →
	Indirect evidence “Johnson, Mirmiran & Thompson is an employee owned, multi-disciplined firm offering a full array of planning, design, and construction phase consulting services for infrastructure…” Source: RevenueBase Database · checked Sep 27, 2026
15	Bowman Consulting	Partial evidence	Reston, VA, United StatesHQ checked Sep 27, 2026	1,001-5,000	1,666 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 27, 2026
16	Normatel Engenharia	Indirect evidence	Fortaleza, BrazilHQ checked Sep 27, 2026	1,001-5,000	1,628 contacts →
	Indirect evidence “Fundada em 1977, a Normatel Engenharia desenvolveu durante esses anos uma sólida, dinâmica e bem estruturada base técnica e de gestão, com ampla visão de mercado.” Source: RevenueBase Database · checked Sep 27, 2026
17	GEI Consultants, INC	Indirect evidence	Woburn, MA, United StatesHQ checked Sep 27, 2026	1,001-5,000	1,604 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 27, 2026
18	Nesco Resource	Indirect evidence	Mayfield Heights, OH, United StatesHQ checked Sep 27, 2026	501-1,000	1,599 contacts →
	Indirect evidence “Companies need talent.” Source: RevenueBase Database · checked Sep 27, 2026
19	UES	Partial evidence	Orlando, FL, United StatesHQ checked Sep 27, 2026	1,001-5,000	1,595 contacts →
	Partial evidence “UES provides professional engineering, environmental, testing and inspection services to clients across the United States.” Source: RevenueBase Database · checked Sep 27, 2026
20	Freyssinet	Strong evidence	Rueil-malmaison, FranceHQ checked Sep 27, 2026	5,001-10,000	1,514 contacts →
	Strong evidence “Founded over 70 years ago by Eugène Freyssinet, the inventor of prestressing, Freyssinet brings together an unrivalled range of skills in the specialist civil engineering sector…” Source: RevenueBase Database · checked Sep 27, 2026
21	Garver	Partial evidence	North Little Rock, AR, United StatesHQ checked Sep 27, 2026	1,001-5,000	1,499 contacts →
	Partial evidence “Founded in 1919, Garver is an employee-owned engineering, planning, and environmental services firm focused on aviation, transportation, buildings, federal, water and wastewater…” Source: RevenueBase Database · checked Sep 27, 2026
22	RENCO	Indirect evidence	Pesaro, ItalyHQ checked Sep 27, 2026	1,001-5,000	1,494 contacts →
	Indirect evidence “Renco S.p.A, an Italian company founded in 1979, is continually committed to providing its Clients with sound business solutions in an ever increasingly complex and challenging…” Source: RevenueBase Database · checked Sep 27, 2026
23	GPI Greenman-Pedersen, INC	Partial evidence	Melville, NY, United StatesHQ checked Sep 27, 2026	1,001-5,000	1,354 contacts →
	Partial evidence “With a staff of over 1,800 professionals, Greenman-Pedersen, Inc.(GPI) is a leading engineering consulting firm that specializes in the innovative design and construction of…” Source: RevenueBase Database · checked Sep 27, 2026
24	Walter P Moore	Indirect evidence	Houston, TX, United StatesHQ checked Sep 27, 2026	1,001-5,000	1,298 contacts →
	Indirect evidence “Welcome to Walter P Moore!” Source: RevenueBase Database · checked Sep 27, 2026
25	Coworx Staffing Services	Partial evidence	Morristown, NJ, United StatesHQ checked Sep 27, 2026	201-500	1,286 contacts →
	Partial evidence “CoWorx Staffing Services is one of the largest staffing firms in the U.S.” Source: RevenueBase Database · checked Sep 27, 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: civil engineering staffing firms. 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 civil engineering staffing firms.
Partial evidence: Its own public description names part of civil engineering staffing firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name civil engineering staffing firms. 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 36,238 civil engineering staffing firms worldwide

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Civil engineering staffing firms worldwide at a glance

As of Sep 27, 2026

27.1%Verified-email coverage

17.7Average contacts per company

11-50Median size (employees)

1.8%Largest-city concentration · London

Sep 27, 2026Page data refreshed

Companies by employee count

1-10

17,924

11-50

11,478

51-200

4,540

201-500

1,242

501-1,000

450

1,001-5,000

334

5,001-10,000

10001+

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 civil engineering staffing firms, 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 civil engineering staffing firms are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “civil engineering staffing firms”. 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 civil engineering staffing firms), 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 civil engineering staffing firms, 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, 173,870 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.

Civil engineering staffing firms by location

141 lists · largest first

Every Civil engineering staffing firms list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

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 civil engineering staffing firms, 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 civil engineering staffing firms are there worldwide?

RevenueBase identified 36,238 civil engineering staffing firms 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?

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

Which country has the most civil engineering staffing firms?

The United States leads with 8,924 companies, followed by the United Kingdom (3,426) and Brazil (2,034). Every civil engineering staffing firms list by country and city is linked on this page.

Which city has the most civil engineering staffing firms?

London leads with 649 headquartered companies, followed by Sao Paulo (331) and Houston (257).

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 173,870 verified decision-maker contacts tracked across these 36,238 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.