Company lists · Data refreshed September 2026

Top 25 Advocacy public relations firms based in Boston, United States

RevenueBase identified 103 advocacy public relations firms headquartered in Boston, United States as of September 2026 and tracks 1,226 professional contacts across them, including 596 with verified work emails. Washington is the largest hub.

This list covers advocacy public relations 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 27, 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 27, 2026 86% judged on-target in blind review
103Companies
1,226Contacts tracked
596Verified emails
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The 25 largest advocacy public relations firms based in Boston, United States

Ranked by team size
Top 25 of 103 advocacy public relations firms based in Boston, United States, ranked by team size, largest first. Data refreshed Sep 27, 2026. RevenueBase Smart Search rates how each company's information relates to advocacy public relations 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceBoston, MA, United StatesHQ checked Sep 27, 2026201-500178 contacts →

Indirect evidence

“Your vision deserves results.”

Source: RevenueBase Database · checked Sep 27, 2026
2Indirect evidenceBoston, MA, United StatesHQ checked Sep 27, 202651-200102 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 27, 2026
3Indirect evidenceBoston, MA, United StatesHQ checked Sep 27, 202651-20092 contacts →

Indirect evidence

“At 40 Regan Communications Group (RCG) has hit its prime!”

Source: RevenueBase Database · checked Sep 27, 2026
4Strong evidenceBoston, MA, United StatesHQ checked Sep 27, 202651-20067 contacts →

Strong evidence

“Cone is a public relations and marketing agency known for igniting brands with high-impact strategies and programs based on deep insights, unique subject matter expertise and…”

Source: RevenueBase Database · checked Sep 27, 2026
5Strong evidenceBoston, MA, United StatesHQ checked Sep 27, 202611-5048 contacts →

Strong evidence

“O’Neill and Associates is New England’s leading full-service government relations, crisis and public relations firm.”

Source: RevenueBase Database · checked Sep 27, 2026
6Indirect evidenceBoston, MA, United StatesHQ checked Sep 27, 202651-20047 contacts →

Indirect evidence

“617MediaGroup is a fast-growing, full service, progressive communications firm headquartered in Massachusetts.”

Source: RevenueBase Database · checked Sep 27, 2026
7Indirect evidenceBoston, MA, United StatesHQ checked Sep 27, 202611-5047 contacts →

Indirect evidence

“Castle is a certified women-owned business where local expertise meets global impact.”

Source: RevenueBase Database · checked Sep 27, 2026
8Strong evidenceBoston, MA, United StatesHQ checked Sep 27, 202611-5045 contacts →

Strong evidence

“Kel & Partners is the anti-agency agency for public relations & social media.”

Source: RevenueBase Database · checked Sep 27, 2026
9Partial evidenceBoston, MA, United StatesHQ checked Sep 27, 202651-20044 contacts →

Partial 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 27, 2026
10Strong evidenceBoston, MA, United StatesHQ checked Sep 27, 202651-20032 contacts →

Strong 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 27, 2026
11Strong evidenceBoston, MA, United StatesHQ checked Sep 27, 202611-5031 contacts →

Strong evidence

“Elevate Communications is a full-service public relations and digital communications agency located in the heart of Boston with satellite offices in Philadelphia, Park City and…”

Source: RevenueBase Database · checked Sep 27, 2026
12Strong evidenceBoston, MA, United StatesHQ checked Sep 27, 202611-5028 contacts →

Strong evidence

“We are an independent public relations agency that inspires and influences the people you care about most.”

Source: RevenueBase Database · checked Sep 27, 2026
13Strong evidenceBoston, MA, United StatesHQ checked Sep 27, 20261-1024 contacts →

Strong evidence

“44 is a creative, lifestyle public relations firm with a distinctly personal approach to our work.”

Source: RevenueBase Database · checked Sep 27, 2026
14Partial evidenceBoston, MA, United StatesHQ checked Sep 27, 202611-5020 contacts →

Partial evidence

“Wave Collective, based in South Boston, operates through four key divisions: Media Relations, Influencer Marketing, Paid + Organic Social Media Management, and Creative Services.”

Source: RevenueBase Database · checked Sep 27, 2026
15Indirect evidenceBoston, MA, United StatesHQ checked Sep 27, 20261-1018 contacts →

Indirect evidence

“At Shawmut Strategies Group, we make government more accessible so our clients can thrive.”

Source: RevenueBase Database · checked Sep 27, 2026
16Partial evidenceBoston, MA, United StatesHQ checked Sep 27, 202611-5016 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 27, 2026
17Strong evidenceBoston, MA, United StatesHQ checked Sep 27, 20261-1016 contacts →

Strong evidence

“Crackle Communications is a public relations agency that works with good companies only.”

Source: RevenueBase Database · checked Sep 27, 2026
18Strong evidenceBoston, MA, United StatesHQ checked Sep 27, 20261-1016 contacts →

Strong evidence

“DPA Communications is a full-service public relations and marketing firm.”

Source: RevenueBase Database · checked Sep 27, 2026
19Strong evidenceBoston, MA, United StatesHQ checked Sep 27, 202611-5015 contacts →

Strong 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 27, 2026
20Strong evidenceBoston, MA, United StatesHQ checked Sep 27, 202611-5014 contacts →

Strong 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 27, 2026
21Partial evidenceBoston, United StatesHQ checked Sep 27, 202611-5013 contacts →

Partial evidence

“Benchmark Strategies is a Boston-based public affairs firm led by Patrick Bench.”

Source: RevenueBase Database · checked Sep 27, 2026
22Indirect evidenceBoston, MA, United StatesHQ checked Sep 27, 20261-1013 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 27, 2026
23Strong evidenceBoston, MA, United StatesHQ checked Sep 27, 20261-1013 contacts →

Strong evidence

“Kortenhaus Communications (KCI) is an independent, boutique public relations firm skilled in developing and executing targeted marketing communications programs.”

Source: RevenueBase Database · checked Sep 27, 2026
24Indirect evidenceBoston, MA, United StatesHQ checked Sep 27, 20261-1012 contacts →

Indirect evidence

“Libretto helps our clients articulate what they do, believe, and hope to achieve.”

Source: RevenueBase Database · checked Sep 27, 2026
25Indirect evidenceBoston, MA, United StatesHQ checked Sep 27, 20261-1011 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 27, 2026

Showing 25 of 103 advocacy public relations firms based in Boston, United States

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Advocacy public relations firms based in Boston, United States at a glance

As of Sep 27, 2026
48.6%Verified-email coverage
11.9Average contacts per company
1-10Median size (employees)
604.9%Largest-city concentration · Washington
Sep 27, 2026Page data refreshed

Companies by employee count

1-10
75
11-50
20
51-200
7
201-500
1

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 103 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 public relations 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 “advocacy public relations 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 advocacy public relations 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 advocacy public relations 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, 596 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 27, 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 public relations 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 advocacy public relations 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 advocacy public relations firms are there based in Boston, United States?

RevenueBase identified 103 advocacy public relations 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?

Matter Communications, headquartered in Boston, tops this list with the largest team on record.

Which city has the most advocacy public relations firms?

Washington leads with 623 headquartered companies, followed by New York (493) and Los Angeles (284).

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 596 verified decision-maker contacts tracked across these 103 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 27, 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.