Company lists · Data refreshed August 2026

Top 25 Civil engineering staffing based in the United States

RevenueBase identified 6,309 civil engineering staffing headquartered in the United States as of August 2026 and tracks 196,703 professional contacts across them, including 78,889 with verified work emails and 77,959 with mobile numbers. Houston is the largest hub.

This list covers civil 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 August 31, 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 Aug 31, 2026 86% judged on-target in blind review
6,309Companies
196,703Contacts tracked
78,889Verified emails
77,959Mobile numbers
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The 25 largest civil engineering staffing based in the United States

Ranked by team size
Top 25 of 6,309 civil engineering staffing based in the United States, ranked by team size, largest first. Data refreshed Aug 31, 2026. RevenueBase Smart Search rates how each company's information relates to civil 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceMacedonia, OH, United States10001+5,034 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 Aug 31, 2026
2Partial evidenceFredericksburg, VA, United States1,001-5,0002,201 contacts →

Partial evidence

“ECS Group of Companies is a Chantilly, VA-based consulting engineering firm.”

Source: RevenueBase Database · checked Aug 31, 2026
3Indirect evidenceSarasota, FL, United States1,001-5,0002,073 contacts →

Indirect evidence

“Employee-Owned.”

Source: RevenueBase Database · checked Aug 31, 2026
4Indirect evidenceDover, DE, United States1,001-5,0001,677 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 Aug 31, 2026
5Partial evidenceRochester, NY, United States1,001-5,0001,650 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 Aug 31, 2026
6Partial evidenceDover, DE, United States1,001-5,0001,639 contacts →

Partial evidence

“RK & K is a full-service planning, engineering, environmental, and construction management/inspection firm serving a wide range of clients throughout the United States.”

Source: RevenueBase Database · checked Aug 31, 2026
7Partial evidenceHouston, TX, United States1,001-5,0001,571 contacts →

Partial evidence

“UES provides professional engineering, environmental, testing and inspection services to clients across the United States.”

Source: RevenueBase Database · checked Aug 31, 2026
8Indirect evidenceKent, OH, United States1,001-5,0001,407 contacts →

Indirect evidence

“We are officially known as Davey Resource Group Inc, but we are more likely to come up in conversation around a successful project we've completed for a client or a capability we…”

Source: RevenueBase Database · checked Aug 31, 2026
9Indirect evidenceEl Paso, TX, United States1,001-5,0001,293 contacts →

Indirect evidence

“Welcome to Walter P Moore!”

Source: RevenueBase Database · checked Aug 31, 2026
10Indirect evidenceMobile, AL, United States1,001-5,0001,204 contacts →

Indirect evidence

“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…”

Source: RevenueBase Database · checked Aug 31, 2026
11Indirect evidenceVero Beach, FL, United States1,001-5,0001,129 contacts →

Indirect evidence

“Ranked No.”

Source: RevenueBase Database · checked Aug 31, 2026
12Partial evidenceWest Columbia, SC, United States10001+1,004 contacts →

Partial evidence

“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.”

Source: RevenueBase Database · checked Aug 31, 2026
13Partial evidenceLos Angeles, CA, United States1,001-5,000901 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 Aug 31, 2026
14Indirect evidenceAtlanta, GA, United States1,001-5,000737 contacts →

Indirect evidence

“Headquartered in Washington DC Metro Area, Cynet Systems is a top talent supplier for companies across North America.”

Source: RevenueBase Database · checked Aug 31, 2026
15Indirect evidenceRaleigh, NC, United States1,001-5,000703 contacts →

Indirect evidence

“Tower Engineer Professionals was founded in 1997 by two tower-climbing engineers.”

Source: RevenueBase Database · checked Aug 31, 2026
16Indirect evidenceTampa, FL, United States1,001-5,000489 contacts →

Indirect evidence

“Infrastructure plays a critical role in creating a future that works for everyone.”

Source: RevenueBase Database · checked Aug 31, 2026
17Indirect evidenceOak Brook, IL, United States1,001-5,000485 contacts →

Indirect evidence

“LAUNCH Technical Workforce Solutions partners with aviation, transportation, and industrial organizations to solve complex workforce challenges.”

Source: RevenueBase Database · checked Aug 31, 2026
18Partial evidenceCary, NC, United States1,001-5,000452 contacts →

Partial evidence

“HardHat Workforce Solutions provides construction staffing solutions with a clear focus on meeting real project needs.”

Source: RevenueBase Database · checked Aug 31, 2026
19Indirect evidenceSouthfield, MI, United States1,001-5,000451 contacts →

Indirect evidence

“Trusted for Talent.”

Source: RevenueBase Database · checked Aug 31, 2026
20Partial evidenceWaltham, MA, United States1,001-5,000391 contacts →

Partial evidence

“Softworld has developed expertise across five distinct staffing and consulting practices over the past 25 years.”

Source: RevenueBase Database · checked Aug 31, 2026
21Partial evidenceSan Luis Obispo, CA, United States1,001-5,000213 contacts →

Partial evidence

“As the Northeast Division of KCI, McLaren is a leading full-service engineering firm renowned for its trusted, high quality, and innovative approach to solving complex challenges.”

Source: RevenueBase Database · checked Aug 31, 2026
22Indirect evidenceHouston, TX, United States1,001-5,000198 contacts →

Indirect evidence

“Paladin Consulting is a nationwide Talent Acquisition and Placement consulting firm.”

Source: RevenueBase Database · checked Aug 31, 2026
23Strong evidenceIrvine, CA, United States1,001-5,000177 contacts →

Strong evidence

“RBF Consulting, a Company of Michael Baker International, LLC, is one of the Nation's leading civil engineering, design, planning, surveying and construction management firms…”

Source: RevenueBase Database · checked Aug 31, 2026
24Partial evidenceHickory, NC, United States1,001-5,000154 contacts →

Partial evidence

“WK Dickson is now part of Ardurra, one of the nation’s most dynamic engineering firms.”

Source: RevenueBase Database · checked Aug 31, 2026
25Indirect evidenceHouston, TX, United States1,001-5,000149 contacts →

Indirect evidence

“CP & Y was acquired by STV and is now doing business as STV.”

Source: RevenueBase Database · checked Aug 31, 2026

Showing 25 of 6,309 civil engineering staffing based in the United States

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Civil engineering staffing based in the United States at a glance

As of Aug 31, 2026
40.1%Verified-email coverage
39.6%Mobile-number coverage
31.2Average contacts per company
11-50Median size (employees)
3.0%Largest-city concentration · Houston
Aug 31, 2026Page data refreshed

Companies by employee count

1-10
2,734
11-50
2,234
51-200
934
201-500
214
501-1,000
82
1,001-5,000
75
10001+
10

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, 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 “civil 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 civil 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 civil 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, 78,889 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 August 31, 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.

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, 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 are there based in the United States?

RevenueBase identified 6,309 civil engineering staffing headquartered in the United States as of August 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?

Tradesmen International, headquartered in Macedonia, tops this list with the largest team on record.

Which city has the most civil engineering staffing?

Houston leads with 187 headquartered companies, followed by New York (120) and Austin (84).

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 78,889 verified decision-maker contacts tracked across these 6,309 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on August 31, 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.