Company lists · Data refreshed September 2026

Top 25 Structural engineering staffing based in the United States

RevenueBase identified 6,724 structural engineering staffing headquartered in the United States as of September 2026 and tracks 166,334 professional contacts across them, including 58,816 with verified work emails and 61,178 with mobile numbers. Houston is the largest hub.

This list covers structural 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 6, 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 6, 2026 86% judged on-target in blind review
6,724Companies
166,334Contacts tracked
58,816Verified emails
61,178Mobile numbers
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The 25 largest structural engineering staffing based in the United States

Ranked by team size
Top 25 of 6,724 structural engineering staffing based in the United States, ranked by team size, largest first. Data refreshed Sep 6, 2026. RevenueBase Smart Search rates how each company's information relates to structural 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
1Partial evidenceOlathe, KS, United StatesHQ checked Sep 6, 20265,001-10,0006,113 contacts →

“Terracon is a 100 percent employee-owned consulting engineering firm providing quality services to clients.”

Source: company website · checked Sep 6, 2026
2Indirect evidenceMacedonia, OH, United StatesHQ checked Sep 6, 202610001+4,999 contacts →

“Founded in 1992, Tradesmen International is North America’s premier resource for proven skilled craftsmen and labor consulting services.”

Source: company website · checked Sep 6, 2026
3Partial evidenceHouston, TX, United StatesHQ checked Sep 6, 2026501-1,0002,128 contacts →

“We support STEM professionals looking for jobs with exceptional firms in the technology and engineering sectors.”

Source: company website · checked Sep 6, 2026
4Partial evidenceHolmdel, NJ, United StatesHQ checked Sep 6, 20261,001-5,0002,049 contacts →

“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: company website · checked Sep 6, 2026
5Partial evidenceReston, VA, United StatesHQ checked Sep 6, 20261,001-5,0001,666 contacts →

“Headquartered in Reston, Virginia, Bowman is a national engineering services firm delivering infrastructure solutions to customers who own, develop and maintain the built…”

Source: company website · checked Sep 6, 2026
6Indirect evidenceMayfield Heights, OH, United StatesHQ checked Sep 6, 2026501-1,0001,599 contacts →

“Companies need talent.”

Source: company website · checked Sep 6, 2026
7Partial evidenceOrlando, FL, United StatesHQ checked Sep 6, 20261,001-5,0001,595 contacts →

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

Source: company website · checked Sep 6, 2026
8Indirect evidenceIndianapolis, IN, United StatesHQ checked Sep 6, 20261,001-5,0001,480 contacts →

“At Brooksource, relationships are at the center of everything we do.”

Source: company website · checked Sep 6, 2026
9Partial evidenceWeymouth, MA, United StatesHQ checked Sep 6, 20265,001-10,0001,427 contacts →

“BHI Energy is an industry-leading provider of specialty services and staffing solutions in support of the daily operations, routine maintenance and capital investment requirements…”

Source: company website · checked Sep 6, 2026
10Partial evidenceMelville, NY, United StatesHQ checked Sep 6, 20261,001-5,0001,354 contacts →

“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: company website · checked Sep 6, 2026
11Indirect evidenceHouston, TX, United StatesHQ checked Sep 6, 20261,001-5,0001,298 contacts →

“Welcome to Walter P Moore!”

Source: company website · checked Sep 6, 2026
12Partial evidenceRound Rock, TX, United StatesHQ checked Sep 6, 2026501-1,0001,234 contacts →

“Let us make construction staffing work for you.”

Source: company website · checked Sep 6, 2026
13Indirect evidenceMobile, AL, United StatesHQ checked Sep 6, 20261,001-5,0001,199 contacts →

“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: company website · checked Sep 6, 2026
14Strong evidenceGreenville, United StatesHQ checked Sep 6, 2026201-5001,187 contacts →

“TRS Staffing Solutions is a world leading engineering recruitment agency specialising in the recruitment and supply of professional, engineering, technical and field talent.”

Source: company website · checked Sep 6, 2026
15Partial evidenceBrookfield, WI, United StatesHQ checked Sep 6, 2026201-5001,019 contacts →

“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: company website · checked Sep 6, 2026
16Partial evidenceRoswell, GA, United StatesHQ checked Sep 6, 202610001+1,011 contacts →

“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: company website · checked Sep 6, 2026
17Partial evidenceAtlanta, GA, United StatesHQ checked Sep 6, 20261,001-5,000901 contacts →

“RemX is the professional staffing division of EmployBridge, a $3 billion staffing organization with more than 600 offices in the U.S.”

Source: company website · checked Sep 6, 2026
18Indirect evidenceDetroit, MI, United StatesHQ checked Sep 6, 2026501-1,000758 contacts →

“At Wade Trim, we are committed to maximizing the value of your infrastructure investment.”

Source: company website · checked Sep 6, 2026
19Indirect evidenceSterling, VA, United StatesHQ checked Sep 6, 20261,001-5,000732 contacts →

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

Source: company website · checked Sep 6, 2026
20Indirect evidenceGlen Allen, VA, United StatesHQ checked Sep 6, 2026501-1,000707 contacts →

“Schnabel is a trusted partner in building the foundation for project success.”

Source: company website · checked Sep 6, 2026
21Indirect evidenceTustin, CA, United StatesHQ checked Sep 6, 2026501-1,000706 contacts →

“PTS Advance teams up with thousands of candidates, clients, and partners to advance workforce utilization in the Oil, Gas & Chemicals, Power & Renewables, Advanced Manufacturing…”

Source: company website · checked Sep 6, 2026
22Indirect evidenceBirmingham, AL, United StatesHQ checked Sep 6, 202610001+624 contacts →

“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: company website · checked Sep 6, 2026
23Indirect evidenceNashville, TN, United StatesHQ checked Sep 6, 2026n/a618 contacts →

“HireQuest Direct specializes in day labor, general labor, disaster recovery, skilled labor, janitorial, site clean-up, composite crew, demolition, administrative, hospitality…”

Source: company website · checked Sep 6, 2026
24Partial evidenceBaltimore, MD, United StatesHQ checked Sep 6, 2026501-1,000601 contacts →

“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…”

Source: company website · checked Sep 6, 2026
25Indirect evidenceOrange, CA, United StatesHQ checked Sep 6, 20265,001-10,000584 contacts →

“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: company website · checked Sep 6, 2026

Showing 25 of 6,724 structural engineering staffing based in the United States

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Structural engineering staffing based in the United States at a glance

As of Sep 6, 2026
35.4%Verified-email coverage
36.8%Mobile-number coverage
24.7Average contacts per company
11-50Median size (employees)
3.1%Largest-city concentration · Houston
Sep 6, 2026Page data refreshed

Companies by employee count

1-10
3,252
11-50
2,192
51-200
890
201-500
221
501-1,000
77
1,001-5,000
66
5,001-10,000
7
10001+
11

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

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 structural 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 “structural 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 structural 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 structural 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, 58,816 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 6, 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 structural 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 structural engineering staffing are there based in the United States?

RevenueBase identified 6,724 structural 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?

Terracon, headquartered in Olathe, tops this list with the largest team on record.

Which city has the most structural engineering staffing?

Houston leads with 207 headquartered companies, followed by New York (142) and Dallas (83).

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 58,816 verified decision-maker contacts tracked across these 6,724 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 6, 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.