Company lists · Data refreshed November 2026

Top 25 Infrastructure engineering recruiters based in the United States

RevenueBase identified 4,110 company matches for infrastructure engineering recruiters associated with the United States as of November 2026 and tracks 162,726 professional contacts across them, including 45,051 with verified work emails. Houston is the largest hub.

This list covers company matches for infrastructure engineering recruiters 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 November 6, 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 Nov 6, 2026 How this list was built
4,110Companies
162,726Contacts tracked
45,051Verified emails
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The 25 largest infrastructure engineering recruiters based in the United States

Ranked by team size
Top 25 of 4,110 company matches for infrastructure engineering recruiters based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchMenlo Park, CA, United StatesHQ recorded Nov 6, 202610001+28,157 contacts →

Exact match

“At Robert Half, we prioritize your security-if you believe you've encountered a scam or fraudulent recruiter, please report it immediately to All Robert Half recruiters…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchKansas City, MO, United StatesHQ recorded Nov 6, 20265,001-10,0007,819 contacts →

Exact match

“For over a century, HNTB has shaped the built environment with distinctive expertise across a full spectrum of infrastructure solutions.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchMacedonia, OH, United StatesHQ recorded Nov 6, 202610001+5,254 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 · Nov 6, 2026 · View company records in RevenueBase
4Exact matchPittsburgh, PA, United StatesHQ recorded Nov 6, 20265,001-10,0004,504 contacts →

Exact match

“Michael Baker International is a leading provider of engineering, consulting, and technology services spanning four Verticals: Infrastructure, Places and Facilities, Federal and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchSan Francisco, CA, United StatesHQ recorded Nov 6, 20261,001-5,0003,268 contacts →

Exact match

“As a global engineering firm, we design infrastructure solutions that connect and elevate communities.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchSan Diego, CA, United StatesHQ recorded Nov 6, 20261,001-5,0002,456 contacts →

Exact match

“At Kleinfelder, we have been connecting great people to the best work since 1961.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchRock Island, IL, United StatesHQ recorded Nov 6, 20261,001-5,0002,116 contacts →

Exact match

“Leaders in Engineering and Innovation.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchReston, VA, United StatesHQ recorded Nov 6, 20261,001-5,0001,827 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 · Nov 6, 2026 · View company records in RevenueBase
9Exact matchMayfield Heights, OH, United StatesHQ recorded Nov 6, 2026501-1,0001,723 contacts →

Exact match

“Companies need talent.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchFargo, IA, United StatesHQ recorded Nov 6, 20261,001-5,0001,491 contacts →

Exact match

“Ulteig delivers comprehensive design engineering, program management and technical and field services that strengthen infrastructure vital to everyday life.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchHouston, TX, United StatesHQ recorded Nov 6, 2026n/a1,434 contacts →

Exact match

“We are a Full Service Solutions Company specializing in placements of professionals in Information Technology, Finance/Accounting, Energy (front, mid and back office)…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchRichardson, FL, United StatesHQ recorded Nov 6, 20261,001-5,0001,365 contacts →

Exact match

“Welcome to Halff, the infrastructure consulting firm planned, designed, engineered, constructed-and purposed-for people.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchDallas, TX, United StatesHQ recorded Nov 6, 202610001+1,353 contacts →

Exact match

“Halcrow is now Jacobs.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchGreenville, United StatesHQ recorded Nov 6, 2026201-5001,274 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 · Nov 6, 2026 · View company records in RevenueBase
15Exact matchRound Rock, TX, United StatesHQ recorded Nov 6, 2026501-1,0001,273 contacts →

Exact match

“Let us make construction staffing work for you.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchRoswell, AZ, United StatesHQ recorded Nov 6, 202610001+1,183 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 · Nov 6, 2026 · View company records in RevenueBase
17Exact matchBrookfield, WI, United StatesHQ recorded Nov 6, 2026201-5001,116 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchNew York, FL, United StatesHQ recorded Nov 6, 2026501-1,000846 contacts →

Exact match

“With more than 139 years of experience, H&H is a trusted, full-service infrastructure engineering firm delivering complex, forward-looking solutions that advance our clients’…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchSan Diego, CA, United StatesHQ recorded Nov 6, 2026n/a845 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 · Nov 6, 2026 · View company records in RevenueBase
20Exact matchNew York, VA, United StatesHQ recorded Nov 6, 20261,001-5,000813 contacts →

Exact match

“Genesis10 connects companies and professionals through every stage of the hiring journey.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchDetroit, MI, United StatesHQ recorded Nov 6, 2026501-1,000810 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchIrvine, CA, United StatesHQ recorded Nov 6, 20261,001-5,000777 contacts →

Exact match

“At Shimmick (NASDAQ: SHIM), we’re shaping the future of sustainable infrastructure through innovative solutions that advance communities and protect our environment.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchTustin, CA, United StatesHQ recorded Nov 6, 2026501-1,000764 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchNew York, NY, United StatesHQ recorded Nov 6, 20261,001-5,000685 contacts →

Exact match

“Dragados USA is now FlatironDragados.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchOrange, CA, United StatesHQ recorded Nov 6, 20265,001-10,000666 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 · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 4,110 infrastructure engineering recruiters based in the United States

See the full list, filter by size, metro and specialty, and access 45,051 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Infrastructure engineering recruiters based in the United States at a glance

As of Nov 6, 2026
27.7%Verified-email coverage
39.6Average contacts per company
1-10Median size (employees)
4.4%Largest-city concentration · Houston
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
2,192
11-50
1,098
51-200
530
201-500
153
501-1,000
53
1,001-5,000
58
5,001-10,000
7
10001+
16

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 4,110 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 “infrastructure engineering recruiters” 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 45,051 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 November 6, 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.

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 “infrastructure engineering recruiters”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many infrastructure engineering recruiters are there based in the United States?

RevenueBase identified 4,110 company matches for infrastructure engineering recruiters associated with the United States as of November 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?

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

Which city has the most infrastructure engineering recruiters?

Houston leads with 180 company records, followed by New York (123) and Austin (70).

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 45,051 professional contacts with verified work emails tracked across these 4,110 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 November 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 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.