Company lists · Data refreshed September 2026

Top 23 Government relations consultants based in Boston, United States

Name: Government relations consultants based in Boston, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 38 companies tracked

RevenueBase identified 38 government relations consultants headquartered in Boston, United States as of September 2026 and tracks 184 professional contacts across them, including 90 with verified work emails. Washington is the largest hub.

This list covers government relations consultants 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 20, 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 20, 2026 86% judged on-target in blind review

38Companies

184Contacts tracked

90Verified emails

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The 23 largest government relations consultants based in Boston, United States

Ranked by team size

Top 23 of 38 government relations consultants based in Boston, United States, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to government relations consultants: 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	Shawmut Strategies Group	Partial evidence	Boston, MA, United StatesHQ checked Sep 20, 2026	1-10	18 contacts →
	Partial evidence “At Shawmut Strategies Group, we make government more accessible so our clients can thrive.” Source: RevenueBase Database · checked Sep 20, 2026
2	Tremont Strategies Group	Partial evidence	Boston, MA, United StatesHQ checked Sep 20, 2026	11-50	16 contacts →
	Partial evidence “Tremont Strategies Group is a full-service government affairs and public-policy consulting firm offering a broad suite of practices and a steadfast commitment to delivering the…” Source: RevenueBase Database · checked Sep 20, 2026
3	Smith, Costello & Crawford	Indirect evidence	Boston, MA, United StatesHQ checked Sep 20, 2026	1-10	13 contacts →
	Indirect evidence “Smith, Costello & Crawford is a regulatory and legislative policy firm dedicated to helping our clients achieve success through consulting, lobbying, and law services.” Source: RevenueBase Database · checked Sep 20, 2026
4	Charles Group Consulting	Partial evidence	Boston, MA, United StatesHQ checked Sep 20, 2026	1-10	11 contacts →
	Partial evidence “Since 2001, Charles Group Consulting (CGC) has provided its clients with unparalleled access to state government and guidance toward achieving successful outcomes for their…” Source: RevenueBase Database · checked Sep 20, 2026
5	Public Strategy Group, INC	Partial evidence	Boston, MA, United StatesHQ checked Sep 20, 2026	1-10	11 contacts →
	Partial evidence “Public Strategy Group, Inc.(PSG) is a full-service public relations and public affairs firm with its headquarters in Boston, MA.” Source: RevenueBase Database · checked Sep 20, 2026
6	Bulfinch Strategies Group	Indirect evidence	Boston, MA, United StatesHQ checked Sep 20, 2026	1-10	10 contacts →
	Indirect evidence “Building and launching a successful strategy requires more than just getting you in the door with the right policymakers.” Source: RevenueBase Database · checked Sep 20, 2026
7	Serlin Haley, LLP	Strong evidence	Boston, MA, United StatesHQ checked Sep 20, 2026	11-50	9 contacts →
	Strong evidence “Based in Boston with offices in Washington DC, Maine and California, Serlin Haley offers a full range of government relations services to businesses and trade organizations at the…” Source: RevenueBase Database · checked Sep 20, 2026
8	Drago Toscano, LLP	Strong evidence	Boston, MA, United StatesHQ checked Sep 20, 2026	1-10	8 contacts →
	Strong evidence “Drago + Toscano LLP is one of Boston’s foremost zoning, licensing, and government relations firms.” Source: RevenueBase Database · checked Sep 20, 2026
9	Nardo & Associates	Indirect evidence	Boston, MA, United StatesHQ checked Sep 20, 2026	11-50	7 contacts →
	Indirect evidence “NARDO & ASSOCIATES advises counsel, principals, and board in high-stakes matters involving conflict, scrutiny, and operational disruption.” Source: RevenueBase Database · checked Sep 20, 2026
10	The Brennan Group, INC	Partial evidence	Boston, MA, United StatesHQ checked Sep 20, 2026	1-10	6 contacts →
	Partial evidence “At The Brennan Group, our mission is to provide our clients with successful government affairs strategies.” Source: RevenueBase Database · checked Sep 20, 2026
11	The Novus Group	Indirect evidence	Boston, MA, United StatesHQ checked Sep 20, 2026	11-50	5 contacts →
	Indirect evidence “Motivated by a singular focus on successful client outcomes, The Novus Group leverages its unique blend of subject expertise in leading political and issues campaigns.” Source: RevenueBase Database · checked Sep 20, 2026
12	Merrimack Potomac Charles	Indirect evidence	Boston, MA, United StatesHQ checked Sep 20, 2026	1-10	4 contacts →
	Indirect evidence “Merrimack Potomac + Charles is a full-service, strategic advisory with offices up and down the East Coast.” Source: RevenueBase Database · checked Sep 20, 2026
13	Northwind Strategies	Indirect evidence	Boston, MA, United StatesHQ checked Sep 20, 2026	1-10	4 contacts →
	Indirect evidence “Northwind Strategies offers full-service strategic communications, campaign management, and public affairs services for corporations, nonprofits and grassroots campaigns and…” Source: RevenueBase Database · checked Sep 20, 2026
14	The Allen Company LLC	Indirect evidence	Boston, MA, United StatesHQ checked Sep 20, 2026	1-10	4 contacts →
	Indirect evidence “To companies needing business development, political organizations needing an assist with communications, fundraising, or strategy, schools looking to reach the next level, or any…” Source: RevenueBase Database · checked Sep 20, 2026
15	Consensus Strategies	Indirect evidence	Boston, MA, United StatesHQ checked Sep 20, 2026	11-50	3 contacts →
	Indirect evidence “Consensus Strategies is a national consulting firm specializing in land use politics, public opinion research, and strategic advocacy.” Source: RevenueBase Database · checked Sep 20, 2026
16	Dempsey Associates	Strong evidence	Boston, MA, United StatesHQ checked Sep 20, 2026	1-10	3 contacts →
	Strong evidence “Government Relations experts specializing in Legislative and Executive Branch lobbying, Appropriations and Funding, and Regulatory matters.” Source: RevenueBase Database · checked Sep 20, 2026
17	Highbury Strategies	Indirect evidence	Boston, MA, United StatesHQ checked Sep 20, 2026	1-10	2 contacts →
	Indirect evidence “Highbury Strategies provides the strategic guidance, tools, and experience to mobilize support for issues, influence policy fights and win tough campaigns.” Source: RevenueBase Database · checked Sep 20, 2026
18	The Suffolk Group, LLC	Partial evidence	Boston, MA, United StatesHQ checked Sep 20, 2026	1-10	2 contacts →
	Partial evidence “The Suffolk Group, LLC is a multidisciplinary professional services firm, specializing in improving business performance through government affairs.” Source: RevenueBase Database · checked Sep 20, 2026
19	MLM Strategies LLC	Indirect evidence	Boston, MA, United StatesHQ checked Sep 20, 2026	51-200	2 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 20, 2026
20	OAK & Argyle	Partial evidence	Boston, MA, United StatesHQ checked Sep 20, 2026	1-10	2 contacts →
	Partial evidence “Oak & Argyle is a full-service government affairs, strategic communications, and real estate development consulting firm.” Source: RevenueBase Database · checked Sep 20, 2026
21	27 South Strategies	Strong evidence	Boston, MA, United StatesHQ checked Sep 20, 2026	1-10	1 contacts →
	Strong evidence “27 South Strategies is a people-powered government relations firm, rewriting the playbook at all levels of government.” Source: RevenueBase Database · checked Sep 20, 2026
22	The Graves Group	Indirect evidence	Boston, MA, United StatesHQ checked Sep 20, 2026	1-10	1 contacts →
	Indirect evidence “The Graves Group is a public affairs, lobbying and political consulting firm headquartered in Boston, Massachusetts with operations in New York and Washington, D.C.” Source: RevenueBase Database · checked Sep 20, 2026
23	Murphy Donoghue Partners	Indirect evidence	Boston, MA, United StatesHQ checked Sep 20, 2026	1-10	1 contacts →
	Indirect evidence “Political insight.” Source: RevenueBase Database · checked Sep 20, 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: government relations consultants. 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 government relations consultants.
Partial evidence: Its own public description names part of government relations consultants, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name government relations consultants. 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 23 of 38 government relations consultants based in Boston, United States

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Government relations consultants based in Boston, United States at a glance

As of Sep 20, 2026

48.9%Verified-email coverage

4.8Average contacts per company

1-10Median size (employees)

1394.7%Largest-city concentration · Washington

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

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 government relations consultants, 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 “government relations consultants”. 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 government relations consultants), 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 government relations consultants, 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, 90 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 20, 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.

Government relations consultants 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 government relations consultants, 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 government relations consultants are there based in Boston, United States?

RevenueBase identified 38 government relations consultants 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?

Shawmut Strategies Group, headquartered in Boston, tops this list with the largest team on record.

Which city has the most government relations consultants?

Washington leads with 530 headquartered companies, followed by Sacramento (91) and Austin (73).

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 90 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 20, 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.