Company lists · Data refreshed September 2026

Top 25 Infrastructure law firms based in Boston, United States

Name: Infrastructure law 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 21, 2026 37 companies tracked

RevenueBase identified 37 infrastructure law firms headquartered in Boston, United States as of September 2026 and tracks 10,798 professional contacts across them, including 2,933 with verified work emails. Houston is the largest hub.

This list covers infrastructure law 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, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 21, 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 21, 2026 86% judged on-target in blind review

37Companies

10,798Contacts tracked

2,933Verified emails

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The 25 largest infrastructure law firms based in Boston, United States

Ranked by team size

Top 25 of 37 infrastructure law firms based in Boston, United States, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to infrastructure law firms: 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 21, 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 21, 2026
2	MINTZ	Partial evidence	Boston, MA, United StatesHQ checked Sep 21, 2026	1,001-5,000	1,326 contacts →
	Partial evidence “Mintz is a full-service law firm serving clients in the life sciences, energy, private equity, and technology industries.” Source: RevenueBase Database · checked Sep 21, 2026
3	Bingham Mccutchen LLP	Indirect evidence	Boston, MA, United StatesHQ checked Sep 21, 2026	1,001-5,000	575 contacts →
	Indirect evidence “Paul, Weiss, Rifkind, Wharton & Garrison LLP is a firm of about lawyers with diverse backgrounds, personalities, ideas and interests who provide innovative and effective solutions…” Source: RevenueBase Database · checked Sep 21, 2026
4	Morrison Mahoney LLP	Indirect evidence	Boston, MA, United StatesHQ checked Sep 21, 2026	201-500	398 contacts →
	Indirect evidence “For 75 years, Morrison Mahoney LLP has been committed to servicing its clients' needs and working with its clients to achieve desired goals and objectives.” Source: RevenueBase Database · checked Sep 21, 2026
5	Verrill	Indirect evidence	Boston, MA, United StatesHQ checked Sep 21, 2026	201-500	286 contacts →
	Indirect evidence “Decency, honesty, and judgment.” Source: RevenueBase Database · checked Sep 21, 2026
6	Nitsch Engineering	Partial evidence	Boston, MA, United StatesHQ checked Sep 21, 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 21, 2026
7	Howard Stein Hudson	Indirect evidence	Boston, MA, United StatesHQ checked Sep 21, 2026	51-200	114 contacts →
	Indirect evidence “We’re more than engineering experts at Howard Stein Hudson - we’re the keystone of complex projects.” Source: RevenueBase Database · checked Sep 21, 2026
8	London Economics International LLC	Partial evidence	Boston, MA, United StatesHQ checked Sep 21, 2026	11-50	67 contacts →
	Partial evidence “London Economics International LLC (“LEI”) is a global economic, financial, and strategic advisory professional services firm specializing in energy and infrastructure.” Source: RevenueBase Database · checked Sep 21, 2026
9	Smith Duggan Cornell & Gollub LLP	Indirect evidence	Boston, MA, United StatesHQ checked Sep 21, 2026	11-50	53 contacts →
	Indirect evidence “Smith Duggan Cornell & Gollub LLP provides effective, innovative and timely legal advice to businesses, organizations, individuals and public entities in New England and across…” Source: RevenueBase Database · checked Sep 21, 2026
10	Dain, Torpy, LE Ray, Wiest & Garner, P.C	Indirect evidence	Boston, MA, United StatesHQ checked Sep 21, 2026	11-50	51 contacts →
	Indirect evidence “We offer developers, business and property owners and users experienced legal representation in all aspects of real estate development, ownership and operation.” Source: RevenueBase Database · checked Sep 21, 2026
11	The Jones Payne Group	Indirect evidence	Boston, MA, United StatesHQ checked Sep 21, 2026	11-50	40 contacts →
	Indirect evidence “The Jones Payne Group, Inc.” Source: RevenueBase Database · checked Sep 21, 2026
12	D'ambrosio LLP	Partial evidence	Boston, MA, United StatesHQ checked Sep 21, 2026	11-50	30 contacts →
	Partial evidence “DLLP is a full-service law firm dedicated to offering the highest level of strategic counsel.” Source: RevenueBase Database · checked Sep 21, 2026
13	Murphy & King, Professional Corporation	Indirect evidence	Boston, MA, United StatesHQ checked Sep 21, 2026	51-200	29 contacts →
	Indirect evidence “Unraveling Complexity A business is a complex entity.” Source: RevenueBase Database · checked Sep 21, 2026
14	Brooks & Derensis, P.C	Indirect evidence	Boston, MA, United StatesHQ checked Sep 21, 2026	11-50	14 contacts →
	Indirect evidence “Brooks & DeRensis is a close-knit firm of dedicated attorneys in the heart of Boston.” Source: RevenueBase Database · checked Sep 21, 2026
15	Nolan Sheehan Patten LLP	Partial evidence	Boston, MA, United StatesHQ checked Sep 21, 2026	1-10	12 contacts →
	Partial evidence “We formed Nolan Sheehan Patten in 2009 to bring our knowledge and skill set as “big firm lawyers” to a boutique law firm environment where we could provide the same expertise and…” Source: RevenueBase Database · checked Sep 21, 2026
16	E3i, A Bowman Company	Indirect evidence	Boston, MA, United StatesHQ checked Sep 21, 2026	11-50	12 contacts →
	Indirect evidence “As of July 2, 2025, e3i Engineers has joined team Bowman.” Source: RevenueBase Database · checked Sep 21, 2026
17	Gilman, Mclaughlin & Hanrahan, LLP	Partial evidence	Boston, MA, United StatesHQ checked Sep 21, 2026	11-50	11 contacts →
	Partial evidence “At the law firm of Gilman, McLaughlin & Hanrahan, LLP, we have been serving individuals and businesses in and around Boston, eastern Massachusetts and Cape Cod since 1975.” Source: RevenueBase Database · checked Sep 21, 2026
18	Strang Scott	Indirect evidence	Boston, MA, United StatesHQ checked Sep 21, 2026	1-10	10 contacts →
	Indirect evidence “Strang Scott is a dynamic business transaction and litigation firm, dedicated to serving the needs of business of all sizes.” Source: RevenueBase Database · checked Sep 21, 2026
19	Urban Idea LAB	Partial evidence	Boston, MA, United StatesHQ checked Sep 21, 2026	1-10	9 contacts →
	Partial evidence “Urban Idea Lab is a Boston-based architectural and urban design firm that specializes in infrastructure and transportation projects.” Source: RevenueBase Database · checked Sep 21, 2026
20	Laredo & Smith, LLP	Partial evidence	Boston, MA, United StatesHQ checked Sep 21, 2026	1-10	8 contacts →
	Partial evidence “The law firm of Laredo & Smith, LLP provides respected advice and creative representation in business litigation, white collar criminal defense and government investigations…” Source: RevenueBase Database · checked Sep 21, 2026
21	Phillips & Angley	Indirect evidence	Boston, MA, United StatesHQ checked Sep 21, 2026	11-50	8 contacts →
	Indirect evidence “Since 1974, the attorneys at Phillips & Angley have provided a full range of legal services to individuals and businesses throughout Massachusetts.” Source: RevenueBase Database · checked Sep 21, 2026
22	Klavens LAW Group, P.C	Partial evidence	Boston, MA, United StatesHQ checked Sep 21, 2026	1-10	7 contacts →
	Partial evidence “At Klavens Law Group, we leverage our legal skills and business acumen to enable innovative ventures that have positive environmental or social impact.” Source: RevenueBase Database · checked Sep 21, 2026
23	Calabrese LAW Associates, P.C	Partial evidence	Boston, MA, United StatesHQ checked Sep 21, 2026	1-10	7 contacts →
	Partial evidence “Calabrese Law Associates offers industry-leading legal representation across a comprehensive range of practice areas to effectively serve clients in need of real estate and…” Source: RevenueBase Database · checked Sep 21, 2026
24	Mcgregor LAW Group PC	Partial evidence	Boston, MA, United StatesHQ checked Sep 21, 2026	1-10	6 contacts →
	Partial evidence “McGregor Law Group PC (formerly McGregor Legere & Stevens PC) is a Boston law firm advising and representing clients in environmental law, land use, commercial and residential…” Source: RevenueBase Database · checked Sep 21, 2026
25	Bbix, Llc, Architects & Engineers	Indirect evidence	Boston, MA, United StatesHQ checked Sep 21, 2026	11-50	6 contacts →
	Indirect 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 21, 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: infrastructure law firms. 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 infrastructure law firms.
Partial evidence: Its own public description names part of infrastructure law firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name infrastructure law firms. 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 37 infrastructure law firms based in Boston, United States

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

As of Sep 21, 2026

27.2%Verified-email coverage

291.8Average contacts per company

11-50Median size (employees)

448.6%Largest-city concentration · Houston

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

1,001-5,000

5,001-10,000

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 37 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 law firms, 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 law firms”. 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 law firms), 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 law 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 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, 2,933 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 21, 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 law firms 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 law firms, 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 law firms are there based in Boston, United States?

RevenueBase identified 37 infrastructure law 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 law firms?

Houston leads with 166 headquartered companies, followed by New York (162) and Washington (134).

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 2,933 verified decision-maker contacts tracked across these 37 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 21, 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.