Company lists · Data refreshed September 2026

Top 25 Internal communications agencies based in San Francisco, United States

RevenueBase identified 61 company matches for internal communications agencies associated with San Francisco, United States as of September 2026 and tracks 1,451 professional contacts across them, including 410 with verified work emails. Across the United States, New York is the largest hub for this category (269 companies); San Francisco has 61.

This list covers company matches for internal communications agencies associated with San Francisco, United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 20, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Sep 20, 2026 How this list was built
61Companies
1,451Contacts tracked
410Verified emails
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The 25 largest internal communications agencies based in San Francisco, United States

Ranked by team size
Top 25 of 61 company matches for internal communications agencies based in San Francisco, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 20, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchSan Francisco, CA, United StatesHQ recorded Sep 20, 2026n/a197 contacts →

Exact match

“Mixing Board is a community of top professionals who share insights, support each other, and seek to elevate the industry at large.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
2Exact matchSan Francisco, CA, United StatesHQ recorded Sep 20, 202651-200152 contacts →

Exact match

“A strategic communications agency, Inkhouse partners with innovators who are creating new markets or disrupting old ones-crafting stories and meeting audiences where they are.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
3Exact matchSan Francisco, CA, United StatesHQ recorded Sep 20, 202651-200107 contacts →

Exact match

“Outcast is an integrated marketing agency specializing in communications, digital, and creative.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
4Exact matchSan Francisco, CA, United StatesHQ recorded Sep 20, 202651-20096 contacts →

Exact match

“We help category-defining brands make their mark through hard-working, creative campaigns that change perceptions and spark action.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
5Exact matchSan Francisco, CA, United StatesHQ recorded Sep 20, 202651-20076 contacts →

Exact match

“For 25 years, we’ve helped companies access new audiences in new ways.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
6Exact matchSan Francisco, CA, United StatesHQ recorded Sep 20, 20261,001-5,00075 contacts →

Exact match

“Segal Benz is the communications consulting practice within Segal, a leading employee-owned consulting firm with more than 1,100 professionals.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
7Exact matchSan Francisco, CA, United StatesHQ recorded Sep 20, 202651-20071 contacts →

Exact match

“A four-time Ad Age Small Agency of the Year, Duncan Channon is a full-service creative shop with a 360º offering including social, experiential and influencer.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
8Exact matchSan Francisco, CA, United StatesHQ recorded Sep 20, 202651-20062 contacts →

Exact match

“Godfrey Dadich Partners (GDP) brings together designers, journalists, strategists, engineers, and more to help brands communicate.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
9Exact matchSan Francisco, CA, United StatesHQ recorded Sep 20, 202651-20037 contacts →

Exact match

“Horn Group is an award-winning digital communications agency.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
10Exact matchSan Francisco, CA, United StatesHQ recorded Sep 20, 202611-5030 contacts →

Exact match

“Sutherlandgold is a full-service integrated communications agency creating inspired stories for standout brands.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
11Exact matchSan Francisco, CA, United StatesHQ recorded Sep 20, 202611-5028 contacts →

Exact match

“If a small-ish agency is to be truly adept at integrated marketing, that means they'd have to hire creatives that can work in all mediums.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
12Exact matchSan Francisco, CA, United StatesHQ recorded Sep 20, 202611-5024 contacts →

Exact match

“Double Forte is an independent strategic communications and digital media agency representing beloved brands making positive change in the consumer lifestyle, technology, digital…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
13Exact matchSan Francisco, CA, United StatesHQ recorded Sep 20, 202611-5024 contacts →

Exact match

“WE ARE NOT AD PEOPLE (although we do advertising).”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
14Exact matchSan Francisco, CA, United StatesHQ recorded Sep 20, 202611-5021 contacts →

Exact match

“A strategic communications agency built from the ground up equally committed to hitting strict diversity metrics and providing full financial and salary transparency to all.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
15Exact matchSan Francisco, CA, United StatesHQ recorded Sep 20, 202611-5018 contacts →

Exact match

“Segal Communications is an award-winning consumer marketing communications agency headquartered in the heart of San Francisco.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
16Exact matchSan Francisco, CA, United StatesHQ recorded Sep 20, 202651-20015 contacts →

Exact match

“Elevating the voices and stories of tech-forward companies who impact our world.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
17Exact matchSan Francisco, CA, United StatesHQ recorded Sep 20, 202611-5013 contacts →

Exact match

“A dynamic and collaborative marketing communications agency creating big ideas by telling powerful brand stories that inspire belief through unexpected thinking.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
18Exact matchSan Francisco, CA, United StatesHQ recorded Sep 20, 202611-5012 contacts →

Exact match

“Trier and Company is an award-winning global, integrated communications agency.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
19Exact matchSan Francisco, CA, United StatesHQ recorded Sep 20, 20261-1010 contacts →

Exact match

“Award Winning Creative Communications The M-Line is a full-service marketing communications agency in San Francisco, California.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
20Exact matchSan Francisco, CA, United StatesHQ recorded Sep 20, 202611-508 contacts →

Exact match

“Tungsten Advertising is a full-service advertising agency based in San Francisco.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
21Exact matchSan Francisco, CA, United StatesHQ recorded Sep 20, 20261-107 contacts →

Exact match

“MacKenzie is an independent marketing communications agency with a reputation for building reputations.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
22Exact matchSan Francisco, CA, United StatesHQ recorded Sep 20, 202611-505 contacts →

Exact match

“Actual Agency is a strategic communications firm specializing in transformative communications by transforming your most important B2B stories into critical business outcomes.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
23Exact matchSan Francisco, CA, United StatesHQ recorded Sep 20, 20261-105 contacts →

Exact match

“Us in a nutshell: We’re your outside in-house agency.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
24Exact matchSan Francisco, CA, United StatesHQ recorded Sep 20, 20261-104 contacts →

Exact match

“A talented team of communicators and creatives, that craft messaging, tell stories and design brands.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
25Exact matchSan Francisco, CA, United StatesHQ recorded Sep 20, 20261-104 contacts →

Exact match

“A full service communications agency specializing in public relations and corporate development.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase

Showing 25 of 61 internal communications agencies based in San Francisco, United States

See the full list, filter by size, metro and specialty, and access 410 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Internal communications agencies based in San Francisco, United States at a glance

As of Sep 20, 2026
28.3%Verified-email coverage
23.8Average contacts per company
1-10Median size (employees)
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
32
11-50
17
51-200
10
201-500
1
1,001-5,000
1

Email recency for this list is measured across the whole United States list rather than for San Francisco, so it is reported there. Company counts and contact totals on this page are exact for San Francisco, over 61 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Company records associated with San Francisco, United States whose business descriptions match “internal communications agencies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 410 professional contacts with verified work emails across the full matched dataset. 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.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “internal communications agencies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many internal communications agencies are there based in San Francisco, United States?

RevenueBase identified 61 company matches for internal communications agencies associated with San Francisco, United States as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Mixing Board, Powered By Axios tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city in the United States has the most internal communications agencies?

New York leads the United States with 269 company records, followed by Chicago (89) and Los Angeles (72). San Francisco has 61.

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 410 professional contacts with verified work emails tracked across these 61 companies; direct dials are available where recorded.

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 SmartSearch, 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.