Company lists · Data refreshed September 2026

Top 25 Engineering consultancies based in Boston, United States

Name: Engineering consultancies based in Boston, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 24, 2026 63 companies tracked

RevenueBase identified 63 engineering consultancies headquartered in Boston, United States as of September 2026 and tracks 10,549 professional contacts across them, including 2,979 with verified work emails. Houston is the largest hub.

This list covers engineering consultancies 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 24, 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 24, 2026 86% judged on-target in blind review

63Companies

10,549Contacts tracked

2,979Verified emails

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The 25 largest engineering consultancies based in Boston, United States

Ranked by team size

Top 25 of 63 engineering consultancies based in Boston, United States, ranked by team size, largest first. Data refreshed Sep 24, 2026. RevenueBase Smart Search rates how each company's information relates to engineering consultancies: 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	CDM Smith	Indirect evidence	Boston, MA, United StatesHQ checked Sep 24, 2026	5,001-10,000	7,527 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 24, 2026
2	Vanderweil Engineers	Partial evidence	Boston, MA, United StatesHQ checked Sep 24, 2026	201-500	545 contacts →
	Partial evidence “Vanderweil is a mechanical, electrical, plumbing, fire protection, technology, sustainability, commissioning, and power engineering firm dedicated to providing customized and…” Source: RevenueBase Database · checked Sep 24, 2026
3	BR A Consulting Engineers	Indirect evidence	Boston, MA, United StatesHQ checked Sep 24, 2026	201-500	506 contacts →
	Indirect evidence “BR+A was founded in Boston, Massachusetts in 1975 by Gene Bard, Arjun Rao, and Ted Athanas.” Source: RevenueBase Database · checked Sep 24, 2026
4	BSC Group	Indirect evidence	Boston, MA, United StatesHQ checked Sep 24, 2026	51-200	504 contacts →
	Indirect evidence “BSC Group, Inc.(BSC) is a multidisciplinary consulting firm with a staff of more than 200 professionals and offices in Boston, Worcester, Andover, and West Yarmouth, MA, as well…” Source: RevenueBase Database · checked Sep 24, 2026
5	ADD Inc, NOW Stantec	Indirect evidence	Boston, MA, United StatesHQ checked Sep 24, 2026	10001+	186 contacts →
	Indirect evidence “ADD Inc.” Source: RevenueBase Database · checked Sep 24, 2026
6	Nitsch Engineering	Partial evidence	Boston, MA, United StatesHQ checked Sep 24, 2026	51-200	168 contacts →
	Partial evidence “Nitsch Engineering provides civil, transportation, and structural engineering; land surveying; resilience and green infrastructure; planning; and GIS services.” Source: RevenueBase Database · checked Sep 24, 2026
7	Mcnamara Salvia, Structural Engineers	Indirect evidence	Boston, MA, United StatesHQ checked Sep 24, 2026	51-200	149 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 24, 2026
8	Howard Stein Hudson	Partial evidence	Boston, MA, United StatesHQ checked Sep 24, 2026	51-200	114 contacts →
	Partial evidence “We’re more than engineering experts at Howard Stein Hudson - we’re the keystone of complex projects.” Source: RevenueBase Database · checked Sep 24, 2026
9	R.W. Sullivan Engineering	Indirect evidence	Boston, MA, United StatesHQ checked Sep 24, 2026	51-200	81 contacts →
	Indirect evidence “R.W.” Source: RevenueBase Database · checked Sep 24, 2026
10	Lemessurier	Partial evidence	Boston, MA, United StatesHQ checked Sep 24, 2026	51-200	75 contacts →
	Partial evidence “For over 60 years, LeMessurier, with offices in Boston, Philadelphia, and Portland, has provided structural engineering and enclosure consulting services to architects, owners…” Source: RevenueBase Database · checked Sep 24, 2026
11	Bryant Associates, INC	Partial evidence	Boston, MA, United StatesHQ checked Sep 24, 2026	51-200	60 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 24, 2026
12	Avid Engineers	Partial evidence	Boston, MA, United StatesHQ checked Sep 24, 2026	11-50	57 contacts →
	Partial evidence “Avid Engineers is an internationally recognized Mechanical, Electrical, Plumbing, Fire Protection and Process Engineering firm offering quality, service-based consultation within…” Source: RevenueBase Database · checked Sep 24, 2026
13	DGT Associates	Partial evidence	Boston, MA, United StatesHQ checked Sep 24, 2026	11-50	49 contacts →
	Partial evidence “DGT Associates is New England’s premier surveying and engineering firm.” Source: RevenueBase Database · checked Sep 24, 2026
14	H O Structural Engineering	Indirect evidence	Boston, MA, United StatesHQ checked Sep 24, 2026	11-50	27 contacts →
	Indirect evidence “The risk of not measuring the cost of structure during design?” Source: RevenueBase Database · checked Sep 24, 2026
15	BWA Architecture	Indirect evidence	Boston, MA, United StatesHQ checked Sep 24, 2026	11-50	18 contacts →
	Indirect evidence “BAKER \| WOHL ARCHITECTS was founded in 1993 as a joint venture by Stephen D.” Source: RevenueBase Database · checked Sep 24, 2026
16	RND Consultants, INC	Partial evidence	Boston, MA, United StatesHQ checked Sep 24, 2026	1-10	14 contacts →
	Partial evidence “RND is a multidisciplinary real estate consulting, engineering, and construction services firm.” Source: RevenueBase Database · checked Sep 24, 2026
17	C&c Consulting Engineers, LLC	Partial evidence	Boston, MA, United StatesHQ checked Sep 24, 2026	11-50	13 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 24, 2026
18	ICO Energy And Engineering, INC	Partial evidence	Boston, MA, United StatesHQ checked Sep 24, 2026	11-50	13 contacts →
	Partial evidence “ICO Energy and Engineering guides and helps our clients navigate operating critical facilities to high performance levels utilizing our expert engineering and metering technology.” Source: RevenueBase Database · checked Sep 24, 2026
19	E3i, A Bowman Company	Indirect evidence	Boston, MA, United StatesHQ checked Sep 24, 2026	11-50	12 contacts →
	Indirect evidence “As of July 2, 2025, e3i Engineers has joined team Bowman.” Source: RevenueBase Database · checked Sep 24, 2026
20	C3, A Rimkus Company	Indirect evidence	Boston, MA, United StatesHQ checked Sep 24, 2026	51-200	9 contacts →
	Indirect evidence “C3 (pronounced C cubed), A Rimkus Company is an international technical services consulting firm with a unique model: one integrated team with expertise spanning every aspect of…” Source: RevenueBase Database · checked Sep 24, 2026
21	Rosales	Partial evidence	Boston, MA, United StatesHQ checked Sep 24, 2026	1-10	7 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 24, 2026
22	Bbix, Llc, Architects & Engineers	Partial evidence	Boston, MA, United StatesHQ checked Sep 24, 2026	11-50	6 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 24, 2026
23	LXC Engineering Group LLC	Partial evidence	Boston, MA, United StatesHQ checked Sep 24, 2026	1-10	6 contacts →
	Partial evidence “LXC Engineering Group is a multi-disciplinary service company that offers its clients high level perspective and approach in the following markets: Aerospace & Defense…” Source: RevenueBase Database · checked Sep 24, 2026
24	Real Time Recruitment Solutions Rtrs	Partial evidence	Boston, MA, United StatesHQ checked Sep 24, 2026	11-50	6 contacts →
	Partial evidence “Real Time Recruitment Solutions (RTRS): Driving Innovation with Specialist Engineering Talent Across Real-Time, Embedded, and Beyond.” Source: RevenueBase Database · checked Sep 24, 2026
25	Boston Civil	Partial evidence	Boston, MA, United StatesHQ checked Sep 24, 2026	1-10	4 contacts →
	Partial evidence “Boston Civil is an engineering and land planning company that has sustained growth through word-of-mouth referrals by providing high-quality civil engineering services to clients…” Source: RevenueBase Database · checked Sep 24, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: engineering consultancies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names engineering consultancies.
Partial evidence: Its own public description names part of engineering consultancies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name engineering consultancies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 63 engineering consultancies based in Boston, United States

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Engineering consultancies based in Boston, United States at a glance

As of Sep 24, 2026

28.2%Verified-email coverage

167.4Average contacts per company

1-10Median size (employees)

987.3%Largest-city concentration · Houston

Sep 24, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

5,001-10,000

10001+

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 63 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 engineering consultancies, 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 “engineering consultancies”. 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 engineering consultancies), 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 engineering consultancies, 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, 2,979 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 24, 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.

Engineering consultancies 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 engineering consultancies, 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 engineering consultancies are there based in Boston, United States?

RevenueBase identified 63 engineering consultancies 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 has the most engineering consultancies?

Houston leads with 622 headquartered companies, followed by New York (449) and Austin (208).

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 2,979 verified decision-maker contacts tracked across these 63 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 24, 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.