Company lists · Data refreshed September 2026

Top 19 Infrastructure engineering staffing companies based in Boston, United States

RevenueBase identified 38 infrastructure engineering staffing companies headquartered in Boston, United States as of September 2026 and tracks 8,238 professional contacts across them, including 1,692 with verified work emails. Across the United States, Houston is the largest hub for this category (320 companies); Boston has 38.

This list covers infrastructure engineering staffing companies headquartered in Boston, 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 28, 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 28, 2026 86% judged on-target in blind review
38Companies
8,238Contacts tracked
1,692Verified emails
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The 19 largest infrastructure engineering staffing companies based in Boston, United States

Ranked by team size
Top 19 of 38 infrastructure engineering staffing companies based in Boston, United States, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to infrastructure engineering staffing companies: 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 evidenceBoston, MA, United StatesHQ checked Sep 28, 20265,001-10,0007,527 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 28, 2026
2Strong evidenceBoston, MA, United StatesHQ checked Sep 28, 202651-200168 contacts →

Strong evidence

“Nitsch Engineering provides civil, transportation, and structural engineering; land surveying; resilience and green infrastructure; planning; and GIS services.”

Source: RevenueBase Database · checked Sep 28, 2026
3Indirect evidenceBoston, MA, United StatesHQ checked Sep 28, 202651-200149 contacts →

Indirect evidence

“McNamara • Salvia brings award-winning creativity, innovation, and experience in structural design to a wide variety of project types.”

Source: RevenueBase Database · checked Sep 28, 2026
4Strong evidenceBoston, MA, United StatesHQ checked Sep 28, 2026201-500107 contacts →

Strong evidence

“Founded in Digital Prospectors is a leading technology, engineering, life sciences, and government services staffing firm working with both the private and public sector.”

Source: RevenueBase Database · checked Sep 28, 2026
5Partial evidenceBoston, MA, United StatesHQ checked Sep 28, 202651-20060 contacts →

Partial evidence

“Founded in 1976, Bryant Associates, Inc.(Bryant) is an MBE/DBE professional consulting firm that provides civil, structural, and traffic engineering, water resources, construction…”

Source: RevenueBase Database · checked Sep 28, 2026
6Indirect evidenceBoston, MA, United StatesHQ checked Sep 28, 2026201-50047 contacts →

Indirect evidence

“About AVID Technical Resources: AVID (Applications, Voice, Internet, Data) Technical Resources is a leading Information Technology recruiting company.”

Source: RevenueBase Database · checked Sep 28, 2026
7Partial evidenceBoston, MA, United StatesHQ checked Sep 28, 202611-5013 contacts →

Partial evidence

“C&C Consulting Engineers, LLC (C&C), is a general structural and civil engineering firm that has been providing a full range of design, inspection, and survey services to…”

Source: RevenueBase Database · checked Sep 28, 2026
8Indirect evidenceBoston, MA, United StatesHQ checked Sep 28, 202611-5012 contacts →

Indirect evidence

“As of July 2, 2025, e3i Engineers has joined team Bowman.”

Source: RevenueBase Database · checked Sep 28, 2026
9Indirect evidenceBoston, MA, United StatesHQ checked Sep 28, 202611-5010 contacts →

Indirect evidence

“ProHire Solutions is a leading Recruitment Agency that specializes in providing top-notch talent to businesses of all sizes.”

Source: RevenueBase Database · checked Sep 28, 2026
10Partial evidenceBoston, MA, United StatesHQ checked Sep 28, 202611-507 contacts →

Partial evidence

“PMO Partners is a niche staffing firm based out of Massachusetts, with 20 years of experience in the recruitment and management of Project Management professionals.”

Source: RevenueBase Database · checked Sep 28, 2026
11Partial evidenceBoston, MA, United StatesHQ checked Sep 28, 20261-107 contacts →

Partial evidence

“Rosales + Partners specializes in the conceptual engineering and architecture of bridges, highway corridors, interchanges, streetscape elements, and other transportation…”

Source: RevenueBase Database · checked Sep 28, 2026
12Partial evidenceBoston, MA, United StatesHQ checked Sep 28, 202611-506 contacts →

Partial evidence

“BBIX, LLC is an award winning architecture and engineering firm and certified small business entity with offices in Boston, Massachusetts; Kingston, Pennsylvania and San Antonio…”

Source: RevenueBase Database · checked Sep 28, 2026
13Partial evidenceBoston, MA, United StatesHQ checked Sep 28, 202651-2006 contacts →

Partial evidence

“Carlton National Resources is a national staffing firm focused on temporary, individual contract placement of senior level Hardware and Software Engineers and Life Science…”

Source: RevenueBase Database · checked Sep 28, 2026
14Indirect evidenceBoston, MA, United StatesHQ checked Sep 28, 202611-504 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 28, 2026
15Partial evidenceBoston, United StatesHQ checked Sep 28, 20261-104 contacts →

Partial evidence

“Sinfranova is a sustainable infrastructure consulting company supporting global projects at the intersection of research and practice.”

Source: RevenueBase Database · checked Sep 28, 2026
16Strong evidenceBoston, MA, United StatesHQ checked Sep 28, 20261-103 contacts →

Strong evidence

“Technical staffing consultants specializing in identifying and evaluating engineering professionals for direct hire.”

Source: RevenueBase Database · checked Sep 28, 2026
17Indirect evidenceBoston, United StatesHQ checked Sep 28, 202611-503 contacts →

Indirect evidence

“GTS, Inc.(Global Technical Search) is a leading provider of IT and Back Office recruiting and placement services in the United States.”

Source: RevenueBase Database · checked Sep 28, 2026
18Partial evidenceBoston, United StatesHQ checked Sep 28, 20261-103 contacts →

Partial evidence

“Located in Massachusetts, REHM Staffing is a premier staffing organization with over a decade of expertise in national recruitment across all levels.”

Source: RevenueBase Database · checked Sep 28, 2026
19Partial evidenceBoston, United StatesHQ checked Sep 28, 20261-102 contacts →

Partial evidence

“Therma Consulting offers executive search, bespoke staffing solutions, and agile resource solutions to organizations working to build a cleaner, more sustainable future.”

Source: RevenueBase Database · checked Sep 28, 2026

Showing 19 of 38 infrastructure engineering staffing companies based in Boston, United States

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Infrastructure engineering staffing companies based in Boston, United States at a glance

As of Sep 28, 2026
20.5%Verified-email coverage
216.8Average contacts per company
11-50Median size (employees)
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
17
11-50
12
51-200
5
201-500
3
5,001-10,000
1

Email recency for this list is measured across the whole United States list rather than for Boston, so it is reported there. Company counts and contact totals on this page are exact for Boston, over 38 companies.

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 infrastructure engineering staffing companies, 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 Boston, United States whose own description of what they do matches “infrastructure engineering staffing companies”. 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 infrastructure engineering staffing companies), 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 infrastructure engineering staffing companies, and records with no verified work email. Companies headquartered outside Boston 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, 1,692 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 28, 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.

Infrastructure engineering staffing companies by metro in the United States

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 infrastructure engineering staffing companies, 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 infrastructure engineering staffing companies are there based in Boston, United States?

RevenueBase identified 38 infrastructure engineering staffing companies headquartered in Boston, 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?

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

Which city in the United States has the most infrastructure engineering staffing companies?

Houston leads the United States with 320 headquartered companies, followed by New York (192) and Austin (129). Boston has 38.

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 1,692 verified decision-maker contacts tracked across these 38 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 28, 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.