Company lists · Data refreshed September 2026
Top 25 Internal communications firms based in Boston, United States
RevenueBase identified 79 internal communications firms headquartered in Boston, United States as of September 2026 and tracks 676 professional contacts across them, including 296 with verified work emails. New York is the largest hub.
This list covers internal communications 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 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.
The 25 largest internal communications firms based in Boston, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 102 contacts → | ||||
Partial 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 20, 2026Thanks. The Data Team will review it. | |||||
| 2 | 61 contacts → | ||||
Partial evidence “V2 Communications is the integrated communications firm for B2B, healthcare and climate & energy technology brands, redefining what it means to be a strategic communications…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 3 | 47 contacts → | ||||
Partial evidence “617MediaGroup is a fast-growing, full service, progressive communications firm headquartered in Massachusetts.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 4 | 47 contacts → | ||||
Indirect evidence “Castle is a certified women-owned business where local expertise meets global impact.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 5 | 44 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 20, 2026Thanks. The Data Team will review it. | |||||
| 6 | 32 contacts → | ||||
Partial 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 20, 2026Thanks. The Data Team will review it. | |||||
| 7 | 16 contacts → | ||||
Partial evidence “Crackle Communications is a public relations agency that works with good companies only.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 8 | 16 contacts → | ||||
Partial evidence “DPA Communications is a full-service public relations and marketing firm.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 9 | 16 contacts → | ||||
Partial evidence “Metis Communications is a marketing communications consultancy.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 10 | 15 contacts → | ||||
Partial 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 20, 2026Thanks. The Data Team will review it. | |||||
| 11 | 14 contacts → | ||||
Partial evidence “We drive value creation in today’s dynamic capital markets through strategic communications and investor relations.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 12 | 13 contacts → | ||||
Partial 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 20, 2026Thanks. The Data Team will review it. | |||||
| 13 | 12 contacts → | ||||
Partial evidence “Since 1992 Fenway Group has been providing marketing communications solutions for leading businesses, organizations and brands in the greater Boston area and beyond.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 14 | 12 contacts → | ||||
Indirect evidence “Libretto helps our clients articulate what they do, believe, and hope to achieve.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 15 | 7 contacts → | ||||
Strong 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 20, 2026Thanks. The Data Team will review it. | |||||
| 16 | 7 contacts → | ||||
Partial evidence “Image Unlimited Communications (IUC) is a boutique Integrated Marketing Communications (IMC) agency specializing in lifestyle and consumer goods in Boston, MA.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 17 | 6 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 18 | 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, 2026Thanks. The Data Team will review it. | |||||
| 19 | 5 contacts → | ||||
Indirect evidence “We are not an advertising agency nor the typical management consulting firm.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 20 | 4 contacts → | ||||
Partial evidence “When the stakes are high, Fortune 500 companies, major institutions and leading public figures come to Howell Communications.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 21 | 3 contacts → | ||||
Partial evidence “McKenna and Partners is a strategic communications firm created to handle opportunities that agencies-of-record may not have the manpower, speed or vertical expertise to address.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 22 | 3 contacts → | ||||
Partial evidence “You’re a highly-skilled Corporate Communications Executive who’s fighting the epidemic of busy-work.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 23 | 2 contacts → | ||||
Partial evidence “Baerlein & Partners is a boutique strategic communications agency staffed by veteran practitioners who are specialists in their segments of the communications field.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 24 | 2 contacts → | ||||
Partial evidence “Mees Communications is your always-on resource for corporate communications, content strategy and development, influencer relations and more.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 25 | 2 contacts → | ||||
Partial evidence “Little Bird Boston is a Boston-based communications consulting company, specializing in marketing and PR for small businesses, startups and non-profits.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
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: internal communications 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 internal communications firms.
- Partial evidence
- Its own public description names part of internal communications firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name internal communications 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 79 internal communications firms based in Boston, United States
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Internal communications firms based in Boston, United States at a glance
As of Sep 20, 2026Companies by employee count
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 79 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 internal communications 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 “internal communications 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 internal communications 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 internal communications 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, 296 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.
Internal communications firms by metro in the United States
- Internal communications firms in New York395
- Internal communications firms in Washington170
- Internal communications firms in Chicago147
- Internal communications firms in Los Angeles125
- Internal communications firms in San Francisco94
- Internal communications firms in Boston79
- Internal communications firms in Atlanta78
- Internal communications firms in Miami68
- Internal communications firms in Denver65
- Internal communications firms in Austin59
- Internal communications firms in Dallas58
- Internal communications firms in Houston53
- Internal communications firms in Minneapolis50
- Internal communications firms in Portland49
- Internal communications firms in Seattle47
- Internal communications firms in Philadelphia41
- Internal communications firms in San Diego35
- Internal communications firms in Alexandria31
- Internal communications firms in Columbus29
- Internal communications firms in Baltimore28
- Internal communications firms in Nashville28
- Internal communications firms in Phoenix28
- Internal communications firms in Milwaukee27
- Internal communications firms in New York City27
- Internal communications firms in Pittsburgh26
- Internal communications firms in Raleigh25
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 internal communications 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 internal communications firms are there based in Boston, United States?
RevenueBase identified 79 internal communications 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?
Dewey Square Group, headquartered in Boston, tops this list with the largest team on record.
Which city has the most internal communications firms?
New York leads with 395 headquartered companies, followed by Washington (170) and Chicago (147).
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 296 verified decision-maker contacts tracked across these 79 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.
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