Company lists · Data refreshed September 2026

Top 25 Cybersecurity pr agencies based in San Francisco, United States

Name: Cybersecurity pr agencies based in San Francisco, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 60 companies tracked

RevenueBase identified 60 cybersecurity pr agencies headquartered in San Francisco, United States as of September 2026 and tracks 4,160 professional contacts across them, including 459 with verified work emails. New York is the largest hub.

This list covers cybersecurity pr agencies headquartered in San Francisco, 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

60Companies

4,160Contacts tracked

459Verified emails

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The 25 largest cybersecurity pr agencies based in San Francisco, United States

Ranked by team size

Top 25 of 60 cybersecurity pr agencies based in San Francisco, United States, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to cybersecurity pr agencies: 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	Bugcrowd	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 21, 2026	n/a	3,649 contacts →
	Indirect evidence “We are a crowdsourced security company that safeguards organizations' assets from sophisticated threat actors before they can strike-by uniting our customers with trusted hackers…” Source: RevenueBase Database · checked Sep 21, 2026
2	Bospar	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 21, 2026	51-200	88 contacts →
	Partial evidence “Bospar is an award-winning boutique tech PR firm of highly seasoned professionals who exist to make the absolute most of your breakthrough ideas, technologies, products and…” Source: RevenueBase Database · checked Sep 21, 2026
3	Sparkpr	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 21, 2026	51-200	58 contacts →
	Indirect evidence “From startups to Fortune members, Sparkpr specializes in helping technology focused and innovation minded companies transform their brands by bringing powerful narratives to life…” Source: RevenueBase Database · checked Sep 21, 2026
4	10fold Communications	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 21, 2026	11-50	50 contacts →
	Partial evidence “10Fold is a PR and integrated marketing agency with offices in San Diego, Austin TX, and Boston.” Source: RevenueBase Database · checked Sep 21, 2026
5	Glodow Nead Communications	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 21, 2026	11-50	39 contacts →
	Partial evidence “Glodow Nead Communications, LLC is a full-service, San Francisco-based lifestyle and hospitality PR firm specializing in strategic public relations, brand development, social…” Source: RevenueBase Database · checked Sep 21, 2026
6	MSR Communications	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 21, 2026	11-50	39 contacts →
	Indirect evidence “MSR Communications is an award-winning, results-driven public relations and marketing communications agency with more than 27 years of global experience.” Source: RevenueBase Database · checked Sep 21, 2026
7	Seworks	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 21, 2026	11-50	27 contacts →
	Indirect evidence “We specialize in Web Application and API penetration Testing, Cyber Threat Intelligence, and Detecting Account Takeovers (ATOs) from attackers.” Source: RevenueBase Database · checked Sep 21, 2026
8	Sentant	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 21, 2026	11-50	24 contacts →
	Partial evidence “Sentant is a next-generation cybersecurity & IT services firm with a team of experienced technology professionals.” Source: RevenueBase Database · checked Sep 21, 2026
9	Code RED Partners	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 21, 2026	1-10	20 contacts →
	Indirect evidence “Code Red specializes in cyber security staffing.” Source: RevenueBase Database · checked Sep 21, 2026
10	Technica Communications	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 21, 2026	1-10	19 contacts →
	Indirect evidence “Technica Communications is a boutique public relations firm, bringing technology companies access to the minds of the world in a spectrum of ways.” Source: RevenueBase Database · checked Sep 21, 2026
11	Landis Communications Inc. Landis	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 21, 2026	11-50	16 contacts →
	Indirect evidence “At LCI,"We believe in ideas that create change.” Source: RevenueBase Database · checked Sep 21, 2026
12	Consort Partners	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 21, 2026	11-50	9 contacts →
	Partial evidence “Consort Partners is a boutique public relations firm founded by former C-suite tech execs who understand the value and impact of strategic PR.” Source: RevenueBase Database · checked Sep 21, 2026
13	Si14 Global Communications	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 21, 2026	11-50	8 contacts →
	Partial evidence “Si14 Global Communications is an international full-service PR agency with a proven track record of media relations and content development for high-tech companies.” Source: RevenueBase Database · checked Sep 21, 2026
14	909cyber	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 21, 2026	1-10	5 contacts →
	Indirect evidence “Fraud doesn’t break in.” Source: RevenueBase Database · checked Sep 21, 2026
15	Activa PR	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 21, 2026	11-50	3 contacts →
	Partial evidence “Founded in 2001, Activa PR is a San Francisco-based public relations and marketing communications firm serving industry visionaries in the innovation hub of the Bay Area and…” Source: RevenueBase Database · checked Sep 21, 2026
16	Tekleap	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 21, 2026	11-50	3 contacts →
	Indirect evidence “With over two decades of experience in sensitive data management across hundreds of clients and installations, we at TekLeap understand the inherent weaknesses and threats in…” Source: RevenueBase Database · checked Sep 21, 2026
17	Open SKY Communications	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 21, 2026	11-50	2 contacts →
	Indirect evidence “Our focus on high-tech public relations and marketing combines deep-tech knowledge with global strategic insights.” Source: RevenueBase Database · checked Sep 21, 2026
18	Socialproof Security	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 21, 2026	1-10	2 contacts →
	Indirect evidence “Defend against cyber criminals with engaging security awareness and social engineering prevention videos, training, talks and penetration testing.” Source: RevenueBase Database · checked Sep 21, 2026
19	Liftoff Communications	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 21, 2026	1-10	2 contacts →
	Partial evidence “Liftoff Communications is an ROI-driven public relations agency that with only senior-level, hands-on PR professionals.” Source: RevenueBase Database · checked Sep 21, 2026
20	Convoy Security	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 21, 2026	11-50	1 contacts →
	Indirect evidence “Asymmetric is a security advisory firm headquartered in San Francisco, serving clients nationwide.” Source: RevenueBase Database · checked Sep 21, 2026
21	Summers Public Relations, LLC	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 21, 2026	1-10	1 contacts →
	Partial evidence “Summers Public Relations, LLC is led by Cathy Summers, a 20 year veteran of technology PR and skilled communications expert.” Source: RevenueBase Database · checked Sep 21, 2026
22	Nichols Communications	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 21, 2026	1-10	1 contacts →
	Partial evidence “Nichols Communications offers B2B technology firms a broad portfolio of PR and communications services combined with decades of experience and deep technical expertise.” Source: RevenueBase Database · checked Sep 21, 2026
23	ENDRÉ	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 21, 2026	1-10	1 contacts →
	Indirect evidence “endré is a commercialization and marketing partner for climate deeptech startups.” Source: RevenueBase Database · checked Sep 21, 2026
24	D3 Networks	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 21, 2026	1-10	1 contacts →
	Partial evidence “D3 Networks specializes in meeting the information technology and cybersecurity needs of firms in the financial industry.” Source: RevenueBase Database · checked Sep 21, 2026
25	Bleucooper	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 21, 2026	1-10	1 contacts →
	Partial evidence “BleuCooper is a strategic PR & communications advisory where clients work directly with senior experts to build credibility, visibility, and trust.” 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: cybersecurity pr agencies. 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 cybersecurity pr agencies.
Partial evidence: Its own public description names part of cybersecurity pr agencies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name cybersecurity pr agencies. 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 60 cybersecurity pr agencies based in San Francisco, United States

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Cybersecurity pr agencies based in San Francisco, United States at a glance

As of Sep 21, 2026

11.0%Verified-email coverage

69.3Average contacts per company

1-10Median size (employees)

205.0%Largest-city concentration · New York

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 San Francisco, so it is reported there. Company counts and contact totals on this page are exact for San Francisco, over 60 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 cybersecurity pr agencies, 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 San Francisco, United States whose own description of what they do matches “cybersecurity pr agencies”. 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 cybersecurity pr agencies), 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 cybersecurity pr agencies, and records with no verified work email. Companies headquartered outside San Francisco 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, 459 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.

Cybersecurity pr agencies by metro in the United States

Cybersecurity pr agencies in New York123
Cybersecurity pr agencies in Washington63
Cybersecurity pr agencies in San Francisco60
Cybersecurity pr agencies in Los Angeles52
Cybersecurity pr agencies in Austin49
Cybersecurity pr agencies in Atlanta48
Cybersecurity pr agencies in Dallas48
Cybersecurity pr agencies in Chicago47
Cybersecurity pr agencies in Houston45
Cybersecurity pr agencies in Miami40
Cybersecurity pr agencies in San Diego38
Cybersecurity pr agencies in Tampa33
Cybersecurity pr agencies in Boston29
Cybersecurity pr agencies in Orlando25

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 cybersecurity pr agencies, 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 cybersecurity pr agencies are there based in San Francisco, United States?

RevenueBase identified 60 cybersecurity pr agencies headquartered in San Francisco, 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?

Bugcrowd, headquartered in San Francisco, tops this list with the largest team on record.

Which city has the most cybersecurity pr agencies?

New York leads with 123 headquartered companies, followed by Washington (63) and San Francisco (60).

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 459 verified decision-maker contacts tracked across these 60 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.

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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.