Company lists · Data refreshed September 2026

Top 20 Infrastructure consulting firms based in Boston, United States

Name: Infrastructure consulting firms based in Boston, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 3, 2026 64 companies tracked

RevenueBase identified 64 infrastructure consulting firms headquartered in Boston, United States as of September 2026 and tracks 9,518 professional contacts across them, including 2,262 with verified work emails. New York is the largest hub.

This list covers infrastructure consulting firms 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, how directly it supports the match, and when it was last checked. Data refreshed September 3, 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 HQ checked on every row Match evidence on every row Refreshed Sep 3, 2026 86% judged on-target in blind review

64Companies

9,518Contacts tracked

2,262Verified emails

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The 20 largest infrastructure consulting firms based in Boston, United States

Ranked by team size

Top 20 of 64 infrastructure consulting firms based in Boston, United States, ranked by team size, largest first. Data refreshed Sep 3, 2026. Evidence rates how directly each company's own description names infrastructure consulting firms: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#	Company	Headquarters	Employees	Contacts
1	CDM SmithIndirect evidence	Boston, MA, United StatesHQ checked Sep 3, 2026	5,001-10,000	7,508
	“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: company website · checked Sep 3, 2026
2	Howard Stein HudsonIndirect evidence	Boston, MA, United StatesHQ checked Sep 3, 2026	51-200	112
	“We’re more than engineering experts at Howard Stein Hudson - we’re the keystone of complex projects.” Source: company website · checked Sep 3, 2026
3	London Economics International LLCPartial evidence	Boston, MA, United StatesHQ checked Sep 3, 2026	11-50	67
	“London Economics International LLC (“LEI”) is a global economic, financial, and strategic advisory professional services firm specializing in energy and infrastructure.” Source: company website · checked Sep 3, 2026
4	Avid EngineersIndirect evidence	Boston, MA, United StatesHQ checked Sep 3, 2026	11-50	56
	“Avid Engineers is an internationally recognized Mechanical, Electrical, Plumbing, Fire Protection and Process Engineering firm offering quality, service-based consultation within…” Source: company website · checked Sep 3, 2026
5	EBP USIndirect evidence	Boston, MA, United StatesHQ checked Sep 3, 2026	11-50	45
	“EBP US is an American company based in Boston that provides state-of-the-art economic analysis and research to support planning and policy in multimodal transportation, economic…” Source: company website · checked Sep 3, 2026
6	LABURIndirect evidence	Boston, MA, United StatesHQ checked Sep 3, 2026	11-50	37
	“LABUR brings technology and business together through sound advice, skillful delivery, and selective leadership search.” Source: company website · checked Sep 3, 2026
7	Harvard Partners, LLPPartial evidence	Boston, MA, United StatesHQ checked Sep 3, 2026	51-200	36
	“Harvard Partners is a management consulting firm focused on helping companies more effectively leverage their IT investment.” Source: company website · checked Sep 3, 2026
8	C&c Consulting Engineers, LLCPartial evidence	Boston, MA, United StatesHQ checked Sep 3, 2026	11-50	13
	“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: company website · checked Sep 3, 2026
9	ICO Energy And Engineering, INCIndirect evidence	Boston, MA, United StatesHQ checked Sep 3, 2026	11-50	13
	“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: company website · checked Sep 3, 2026
10	E3i, A Bowman CompanyIndirect evidence	Boston, MA, United StatesHQ checked Sep 3, 2026	11-50	12
	“As of July 2, 2025, e3i Engineers has joined team Bowman.” Source: company website · checked Sep 3, 2026
11	Urban Idea LABPartial evidence	Boston, MA, United StatesHQ checked Sep 3, 2026	1-10	9
	“Urban Idea Lab is a Boston-based architectural and urban design firm that specializes in infrastructure and transportation projects.” Source: company website · checked Sep 3, 2026
12	C3, A Rimkus CompanyPartial evidence	Boston, MA, United StatesHQ checked Sep 3, 2026	51-200	9
	“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: company website · checked Sep 3, 2026
13	CharticIndirect evidence	Boston, MA, United StatesHQ checked Sep 3, 2026	11-50	7
	“Chartic partners with global market leaders in complex industrial markets to provide clarity on where to invest and how to compete.” Source: company website · checked Sep 3, 2026
14	RosalesIndirect evidence	Boston, MA, United StatesHQ checked Sep 3, 2026	1-10	7
	“Rosales + Partners specializes in the conceptual engineering and architecture of bridges, highway corridors, interchanges, streetscape elements, and other transportation…” Source: company website · checked Sep 3, 2026
15	Auribus ConsultingIndirect evidence	Boston, MA, United StatesHQ checked Sep 3, 2026	1-10	6
	Source: company website · checked Sep 3, 2026
16	Sinfranova LLCStrong evidence	Boston, United StatesHQ checked Sep 3, 2026	1-10	4
	“Sinfranova is a sustainable infrastructure consulting company supporting global projects at the intersection of research and practice.” Source: company website · checked Sep 3, 2026
17	Junction Rail ConsultingPartial evidence	Boston, MA, United StatesHQ checked Sep 3, 2026	1-10	3
	“Junction Rail Consulting LLC was established with the goal of supporting the development of passenger rail service…bringing the benefits of one of the most environmentally and…” Source: company website · checked Sep 3, 2026
18	Nephin TechnologiesPartial evidence	Boston, MA, United StatesHQ checked Sep 3, 2026	1-10	2
	“Nephin Technologies is an independent consulting firm, experienced in offering a broad range of projects for clients within many industry sectors.” Source: company website · checked Sep 3, 2026
19	Simchik Planning & DevelopmentIndirect evidence	Boston, MA, United StatesHQ checked Sep 3, 2026	1-10	2
	“Simchik Planning & Development is an urban/transportation planning and real estate redevelopment advisory services firm that manages our clients’ projects throughout their entire…” Source: company website · checked Sep 3, 2026
20	Kokoro Applied Expertise, LLCPartial evidence	Boston, United StatesHQ checked Sep 3, 2026	1-10	1
	“Kokoro Applied Expertise provides engineering, design, product, and leadership consulting for technology companies and those who wish to help them succeed.” Source: company website · checked Sep 3, 2026

Showing 20 of 64 infrastructure consulting firms based in Boston, United States

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Infrastructure consulting firms based in Boston, United States at a glance

As of Sep 3, 2026

11-50Median size (employees)

New YorkLargest hub · 306 HQs

Contacts with mobile numbers

Sep 3, 2026Data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

5,001-10,000

10001+

Email recency for this list is measured across the whole United States list rather than this city, so it is reported there. Company counts and contact totals on this page are exact for Boston, over 64 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 consulting firms, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, 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 consulting firms”. Matching reads each company's description, not its industry code or its name.
What we exclude: Companies whose own description does not clearly place them among infrastructure consulting firms, 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 an evidence 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, 2,262 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 3, 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 consulting firms by metro in the United States

Frequently asked

How many infrastructure consulting firms are there based in Boston, United States?

RevenueBase identified 64 infrastructure consulting firms 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 infrastructure consulting firms?

New York leads with 306 headquartered companies, followed by Houston (293) and Washington (158).

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 2,262 verified decision-maker contacts tracked across these 64 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 3, 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.