Company lists · Data refreshed September 2026

Top 25 Civil engineering staffing agencies based in the United States

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

Compiled by the RevenueBase Data Team Data refreshed Sep 27, 2026 5,223 companies tracked

RevenueBase identified 5,223 company matches for civil engineering staffing agencies associated with the United States as of September 2026 and tracks 152,126 professional contacts across them, including 51,671 with verified work emails. Houston is the largest hub.

This list covers company matches for civil engineering staffing agencies 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 27, 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 27, 2026 How this list was built

5,223Companies

152,126Contacts tracked

51,671Verified emails

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The 25 largest civil engineering staffing agencies based in the United States

Ranked by team size

Top 25 of 5,223 company matches for civil engineering staffing agencies based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 27, 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	Terracon	Exact match	Olathe, KS, United StatesHQ recorded Sep 27, 2026	5,001-10,000	6,113 contacts →
	Exact match “Terracon is a 100 percent employee-owned consulting engineering firm providing quality services to clients.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
2	Tradesmen International	Exact match	Macedonia, OH, United StatesHQ recorded Sep 27, 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 27, 2026 · View company records in RevenueBase
3	ECS Group Of Companies	Exact match	Chantilly, VA, United StatesHQ recorded Sep 27, 2026	1,001-5,000	2,210 contacts →
	Exact match “ECS Group of Companies is a Chantilly, VA-based consulting engineering firm.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
4	Airswift	Exact match	Houston, TX, United StatesHQ recorded Sep 27, 2026	501-1,000	2,128 contacts →
	Exact match “We support STEM professionals looking for jobs with exceptional firms in the technology and engineering sectors.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
5	Bowman Consulting	Exact match	Reston, VA, United StatesHQ recorded Sep 27, 2026	1,001-5,000	1,666 contacts →
	Exact match “Headquartered in Reston, Virginia, Bowman is a national engineering services firm delivering infrastructure solutions to customers who own, develop and maintain the built…” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
6	Nesco Resource	Exact match	Mayfield Heights, OH, United StatesHQ recorded Sep 27, 2026	501-1,000	1,599 contacts →
	Exact match “Companies need talent.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
7	UES	Exact match	Orlando, FL, United StatesHQ recorded Sep 27, 2026	1,001-5,000	1,595 contacts →
	Exact match “UES provides professional engineering, environmental, testing and inspection services to clients across the United States.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
8	Brooksource	Exact match	Indianapolis, IN, United StatesHQ recorded Sep 27, 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 27, 2026 · View company records in RevenueBase
9	GPI Greenman-Pedersen, INC	Exact match	Melville, NY, United StatesHQ recorded Sep 27, 2026	1,001-5,000	1,354 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
10	Walter P Moore	Exact match	Houston, TX, United StatesHQ recorded Sep 27, 2026	1,001-5,000	1,298 contacts →
	Exact match “Welcome to Walter P Moore!” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
11	Construction Labor Contractors	Exact match	Round Rock, TX, United StatesHQ recorded Sep 27, 2026	501-1,000	1,234 contacts →
	Exact match “Let us make construction staffing work for you.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
12	Outsource	Exact match	El Segundo, CA, United StatesHQ recorded Sep 27, 2026	n/a	1,230 contacts →
	Exact match “Outsource is the largest staffing firm in the nation specializing in the placement of low voltage and electrical talent.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
13	Volkert, INC	Exact match	Mobile, AL, United StatesHQ recorded Sep 27, 2026	1,001-5,000	1,199 contacts →
	Exact match “Volkert’s history began in 1925 when it was founded in New Orleans as Doullut & Erwin to provide waterfront and heavy construction services, as well as airport design services…” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
14	TRS Staffing Solutions	Exact match	Greenville, United StatesHQ recorded Sep 27, 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 27, 2026 · View company records in RevenueBase
15	Staff Zone	Exact match	Roswell, GA, United StatesHQ recorded Sep 27, 2026	10001+	1,011 contacts →
	Exact match “Staff Zone is a Best-in-Class® construction staffing agency specializing in meeting the daily workforce needs of the construction, light industrial, and special events industries.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
16	Remx The Workforce Experts	Exact match	Atlanta, GA, United StatesHQ recorded Sep 27, 2026	1,001-5,000	901 contacts →
	Exact match “RemX is the professional staffing division of EmployBridge, a $3 billion staffing organization with more than 600 offices in the U.S.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
17	The Reserves Network	Exact match	Fairview Park, OH, United StatesHQ recorded Sep 27, 2026	n/a	812 contacts →
	Exact match “The Reserves Network is a leading provider of staffing services for the Office, Industrial, Professional and Technical markets.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
18	Eastridge Workforce Solutions	Exact match	San Diego, CA, United StatesHQ recorded Sep 27, 2026	n/a	803 contacts →
	Exact match “Eastridge Workforce Solutions is a trusted staffing partner helping businesses build stronger, more productive teams across industrial and professional sectors.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
19	Trojan Labor	Exact match	Goose Creek, SC, United StatesHQ recorded Sep 27, 2026	n/a	732 contacts →
	Exact match “Trojan Labor Specializes in matching Customers who have industrial and Light Industrial staffing needs while never forgetting who the CUSTOMER is.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
20	Schnabel Engineering	Exact match	Glen Allen, VA, United StatesHQ recorded Sep 27, 2026	501-1,000	707 contacts →
	Exact match “Schnabel is a trusted partner in building the foundation for project success.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
21	Overland Contracting INC	Exact match	Garner, NC, United StatesHQ recorded Sep 27, 2026	1,001-5,000	690 contacts →
	Exact match “Overland Contracting Inc,(OCI) is a Black & Veatch Company (BV) that provides construction services in the open/merit shop arena.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
22	Hirequest Direct	Exact match	Nashville, TN, United StatesHQ recorded Sep 27, 2026	n/a	618 contacts →
	Exact match “HireQuest Direct specializes in day labor, general labor, disaster recovery, skilled labor, janitorial, site clean-up, composite crew, demolition, administrative, hospitality…” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
23	Whitman, Requardt And Associates, LLP	Exact match	Baltimore, MD, United StatesHQ recorded Sep 27, 2026	501-1,000	601 contacts →
	Exact match “Established in 1915, WRA is a nationally-recognized engineering, architectural and environmental planning firm with a reputation for delivering exceptional work on time and within…” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
24	Neel-Schaffer, INC	Exact match	Jackson, MS, United StatesHQ recorded Sep 27, 2026	501-1,000	591 contacts →
	Exact match “Neel-Schaffer is a multi-disciplined engineering, planning and construction management firm that was founded in 1983 and today is one of the largest private, employee-owned…” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
25	Volt Technical Resources	Exact match	Orange, CA, United StatesHQ recorded Sep 27, 2026	5,001-10,000	584 contacts →
	Exact match “A Six Sigma Company ~61 years in the industry ~Nationwide 4 million+ candidate database ~Fortune Company ~Extensive E-Recruiting capabilities ~Reference and Employment check…” Recorded in the RevenueBase company graph · Sep 27, 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 “civil engineering staffing agencies”. 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 5,223 civil engineering staffing agencies based in the United States

See the full list, filter by size, metro and specialty, and access 51,671 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Civil engineering staffing agencies based in the United States at a glance

As of Sep 27, 2026

34.0%Verified-email coverage

29.1Average contacts per company

11-50Median size (employees)

3.2%Largest-city concentration · Houston

Sep 27, 2026Page data refreshed

Companies by employee count

1-10

2,340

11-50

1,770

51-200

773

201-500

193

501-1,000

1,001-5,000

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 5,223 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 “civil engineering staffing agencies” 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 51,671 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 27, 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.

Civil engineering staffing agencies 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 “civil engineering staffing agencies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many civil engineering staffing agencies are there based in the United States?

RevenueBase identified 5,223 company matches for civil engineering staffing agencies 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?

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

Which city has the most civil engineering staffing agencies?

Houston leads with 168 company records, followed by New York (107) and Austin (60).

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 51,671 professional contacts with verified work emails tracked across these 5,223 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 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 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.