Company lists · Data refreshed September 2026

Top 25 Advocacy consultants based in Boston, United States

Name: Advocacy 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 21, 2026 87 companies tracked

RevenueBase identified 87 advocacy consultants headquartered in Boston, United States as of September 2026 and tracks 740 professional contacts across them, including 360 with verified work emails. Washington is the largest hub.

This list covers advocacy 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 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

87Companies

740Contacts tracked

360Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest advocacy consultants based in Boston, United States

Ranked by team size

Top 25 of 87 advocacy consultants 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 advocacy 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	Dewey Square Group	Indirect evidence	Boston, MA, United StatesHQ checked Sep 21, 2026	51-200	102 contacts →
	Indirect evidence “The Dewey Square Group offers strategic marketing, grassroots and digital communications to the country's most respected corporate and non-profit organizations.” Source: RevenueBase Database · checked Sep 21, 2026
2	Disability LAW Center	Partial evidence	Boston, MA, United StatesHQ checked Sep 21, 2026	11-50	67 contacts →
	Partial evidence “The Disability Law Center (DLC) is the Protection and Advocacy (P&A) agency for Massachusetts.” Source: RevenueBase Database · checked Sep 21, 2026
3	Leftfield	Partial evidence	Boston, MA, United StatesHQ checked Sep 21, 2026	51-200	53 contacts →
	Partial evidence “We have over 20 years experience representing and advocating for owners on large-scale construction projects.” Source: RevenueBase Database · checked Sep 21, 2026
4	617mediagroup	Indirect evidence	Boston, MA, United StatesHQ checked Sep 21, 2026	51-200	47 contacts →
	Indirect evidence “617MediaGroup is a fast-growing, full service, progressive communications firm headquartered in Massachusetts.” Source: RevenueBase Database · checked Sep 21, 2026
5	Issues Management Group	Indirect evidence	Boston, MA, United StatesHQ checked Sep 21, 2026	51-200	44 contacts →
	Indirect evidence “Issues Management Group is an integrated strategic communication, public affairs and digital firm guiding clients through complex, highly leveraged situations.” Source: RevenueBase Database · checked Sep 21, 2026
6	Rasky Partners	Indirect evidence	Boston, MA, United StatesHQ checked Sep 21, 2026	51-200	32 contacts →
	Indirect evidence “We are a nationally recognized communications and public affairs firm named by Forbes as one of America’s top public relations firms.” Source: RevenueBase Database · checked Sep 21, 2026
7	Development Guild DDI	Indirect evidence	Boston, MA, United StatesHQ checked Sep 21, 2026	11-50	25 contacts →
	Indirect evidence “We partner with nonprofit leaders to drive their missions forward with fresh perspectives and high-impact solutions through our 45+ years of experience in strategy, fundraising…” Source: RevenueBase Database · checked Sep 21, 2026
8	Inspire INC	Indirect evidence	Boston, MA, United StatesHQ checked Sep 21, 2026	201-500	22 contacts →
	Indirect evidence “Founded in 1998, Inspire is a 501(c)(3) nonprofit offering management and strategy consulting services to leading nonprofit organizations across the United States.” Source: RevenueBase Database · checked Sep 21, 2026
9	Shawmut Strategies Group	Indirect evidence	Boston, MA, United StatesHQ checked Sep 21, 2026	1-10	18 contacts →
	Indirect evidence “At Shawmut Strategies Group, we make government more accessible so our clients can thrive.” Source: RevenueBase Database · checked Sep 21, 2026
10	Tremont Strategies Group	Indirect evidence	Boston, MA, United StatesHQ checked Sep 21, 2026	11-50	16 contacts →
	Indirect 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 21, 2026
11	Regina Villa Associates, INC	Indirect evidence	Boston, MA, United StatesHQ checked Sep 21, 2026	11-50	15 contacts →
	Indirect evidence “Regina Villa Assoc is a public relations and communications company based out of 20 Park Plaza, Suite 801, Boston, Massachusetts, United States.” Source: RevenueBase Database · checked Sep 21, 2026
12	Slowey Mcmanus Communications	Indirect evidence	Boston, MA, United StatesHQ checked Sep 21, 2026	11-50	14 contacts →
	Indirect evidence “With offices in Boston and Worcester and affiliates in New York City, Slowey McManus Communications provides strategic public relations, communications, and public affairs…” Source: RevenueBase Database · checked Sep 21, 2026
13	Smith, Costello & Crawford	Indirect evidence	Boston, MA, United StatesHQ checked Sep 21, 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 21, 2026
14	Libretto	Indirect evidence	Boston, MA, United StatesHQ checked Sep 21, 2026	1-10	12 contacts →
	Indirect evidence “Libretto helps our clients articulate what they do, believe, and hope to achieve.” Source: RevenueBase Database · checked Sep 21, 2026
15	Hartley Michon Robb Hannon LLP	Partial evidence	Boston, MA, United StatesHQ checked Sep 21, 2026	1-10	11 contacts →
	Partial evidence “Hartley Michon Robb Hannon LLP concentrates in employment law, executive advocacy and litigation.” Source: RevenueBase Database · checked Sep 21, 2026
16	Charles Group Consulting	Indirect evidence	Boston, MA, United StatesHQ checked Sep 21, 2026	1-10	11 contacts →
	Indirect 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 21, 2026
17	Public Strategy Group, INC	Indirect evidence	Boston, MA, United StatesHQ checked Sep 21, 2026	1-10	11 contacts →
	Indirect 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 21, 2026
18	Bulfinch Strategies Group	Indirect evidence	Boston, MA, United StatesHQ checked Sep 21, 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 21, 2026
19	Serlin Haley, LLP	Indirect evidence	Boston, MA, United StatesHQ checked Sep 21, 2026	11-50	9 contacts →
	Indirect 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 21, 2026
20	Data Soul Research	Indirect evidence	Boston, MA, United StatesHQ checked Sep 21, 2026	1-10	8 contacts →
	Indirect evidence “Data+Soul Research is a consulting firm that specializes in design, strategy, and evaluation for social impact.” Source: RevenueBase Database · checked Sep 21, 2026
21	The Numad Group	Indirect evidence	Boston, MA, United StatesHQ checked Sep 21, 2026	1-10	7 contacts →
	Indirect evidence “The Numad Group is communication, fundraising, strategic planning, and program evaluation consulting firm that primarily partners with nonprofits in the arts, education, and…” Source: RevenueBase Database · checked Sep 21, 2026
22	Melwood Global	Indirect evidence	Boston, MA, United StatesHQ checked Sep 21, 2026	11-50	7 contacts →
	Indirect evidence “Melwood Global is a strategic communications firm staffed by media industry professionals who have vast experience in both international public affairs and international…” Source: RevenueBase Database · checked Sep 21, 2026
23	The Brennan Group, INC	Indirect evidence	Boston, MA, United StatesHQ checked Sep 21, 2026	1-10	6 contacts →
	Indirect evidence “At The Brennan Group, our mission is to provide our clients with successful government affairs strategies.” Source: RevenueBase Database · checked Sep 21, 2026
24	Field First	Indirect evidence	Boston, MA, United StatesHQ checked Sep 21, 2026	1-10	5 contacts →
	Indirect evidence “Field First LLC is a progressive consulting firm focused on helping community organizations, issue-based coalitions, labor unions, political campaigns, and companies achieve their…” Source: RevenueBase Database · checked Sep 21, 2026
25	The Novus Group	Indirect evidence	Boston, MA, United StatesHQ checked Sep 21, 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 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: advocacy 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 advocacy consultants.
Partial evidence: Its own public description names part of advocacy consultants, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name advocacy 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 25 of 87 advocacy consultants based in Boston, United States

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 360 reachable decision-makers.

Free signup · no credit card

View the full list →

Advocacy consultants based in Boston, United States at a glance

As of Sep 21, 2026

48.6%Verified-email coverage

8.5Average contacts per company

1-10Median size (employees)

966.7%Largest-city concentration · Washington

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

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 87 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 advocacy 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 “advocacy 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 advocacy 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 advocacy 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, 360 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.

Advocacy 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 advocacy 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 advocacy consultants are there based in Boston, United States?

RevenueBase identified 87 advocacy 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?

Dewey Square Group, headquartered in Boston, tops this list with the largest team on record.

Which city has the most advocacy consultants?

Washington leads with 841 headquartered companies, followed by New York (239) and Sacramento (139).

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 360 verified decision-maker contacts tracked across these 87 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.

Ready to reach these companies? Verified emails and direct dials for all 87 advocacy consultants based in Boston, United States. Start with a free account, no credit card.

Download this list →

Related lists

Advocacy consultants by geography

Browse the directory

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.