Company lists · Data refreshed September 2026

Top 25 Infosec pr firms based in the United States

Name: Infosec pr firms based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 1,797 companies tracked

RevenueBase identified 1,797 infosec pr firms headquartered in the United States as of September 2026 and tracks 18,520 professional contacts across them, including 7,991 with verified work emails. New York is the largest hub.

This list covers infosec pr firms headquartered in the 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 28, 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 28, 2026 86% judged on-target in blind review

1,797Companies

18,520Contacts tracked

7,991Verified emails

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The 25 largest infosec pr firms based in the United States

Ranked by team size

Top 25 of 1,797 infosec pr firms based in the United States, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to infosec pr 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Guidepoint Security	Indirect evidence	Reston, VA, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,232 contacts →
	Indirect evidence “GuidePoint Security provides trusted cybersecurity expertise, solutions, and services that help organizations make informed decisions and minimize risk.” Source: RevenueBase Database · checked Sep 28, 2026
2	Application Specialist Kompany ASK	Indirect evidence	Lansing, MI, United StatesHQ checked Sep 28, 2026	n/a	785 contacts →
	Indirect evidence “ASK is now Convergence Networks!” Source: RevenueBase Database · checked Sep 28, 2026
3	Prosek Partners	Indirect evidence	New York, NY, United StatesHQ checked Sep 28, 2026	201-500	543 contacts →
	Indirect evidence “Prosek Partners builds – and protects – the top brands in business.” Source: RevenueBase Database · checked Sep 28, 2026
4	5wpr	Partial evidence	New York, NY, United StatesHQ checked Sep 28, 2026	201-500	397 contacts →
	Partial evidence “5WPR is one of the largest independently owned PR and digital marketing agencies in the US.” Source: RevenueBase Database · checked Sep 28, 2026
5	DKC	Indirect evidence	New York, NY, United StatesHQ checked Sep 28, 2026	201-500	349 contacts →
	Indirect evidence “DKC is a full service public relations, marketing and government affairs firm and part of the Acceleration Community of Companies, Based in New York City, and with offices in Los…” Source: RevenueBase Database · checked Sep 28, 2026
6	Bishop FOX	Indirect evidence	Tempe, AZ, United StatesHQ checked Sep 28, 2026	201-500	344 contacts →
	Indirect evidence “Bishop Fox is recognized as the leading authority in offensive security, providing solutions ranging from continuous penetration testing, red teaming, and attack surface…” Source: RevenueBase Database · checked Sep 28, 2026
7	Berlinrosen, An Orchestra Company	Indirect evidence	New York, NY, United StatesHQ checked Sep 28, 2026	201-500	302 contacts →
	Indirect evidence “Built to operate with the speed and intensity of a political campaign, BerlinRosen takes a 360-degree approach to communications, activating audiences and elevating story above…” Source: RevenueBase Database · checked Sep 28, 2026
8	Hotwire	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 28, 2026	201-500	257 contacts →
	Partial evidence “Hotwire Global is the preeminent tech PR, communications, and marketing consultancy.” Source: RevenueBase Database · checked Sep 28, 2026
9	Loginsoft	Indirect evidence	Chantilly, VA, United StatesHQ checked Sep 28, 2026	201-500	220 contacts →
	Indirect evidence “For over 20 years, leading companies in Telecom, Cybersecurity, Healthcare, Banking, New Media, and more have come to rely on Loginsoft as a trusted resource for technology talent.” Source: RevenueBase Database · checked Sep 28, 2026
10	Mindpoint Group, A Quantum SKY Company	Indirect evidence	Reston, VA, United StatesHQ checked Sep 28, 2026	1,001-5,000	204 contacts →
	Indirect evidence “MindPoint Group, a Quantum Sky company, is a cybersecurity specialist trusted by U.S.” Source: RevenueBase Database · checked Sep 28, 2026
11	Safeaeon INC	Indirect evidence	Pleasanton, CA, United StatesHQ checked Sep 28, 2026	51-200	196 contacts →
	Indirect evidence “SafeAeon leads the industry as a top-tier Cybersecurity-as-a-Service provider, delivering 24x7 premium Managed Security Services with AI-powered and human-driven 24x7 SOC…” Source: RevenueBase Database · checked Sep 28, 2026
12	Coyne PR	Partial evidence	Parsippany, NJ, United StatesHQ checked Sep 28, 2026	51-200	195 contacts →
	Partial evidence “Every day is Independence Day at Coyne PR.” Source: RevenueBase Database · checked Sep 28, 2026
13	Cyber Advisors	Indirect evidence	Maple Grove, MN, United StatesHQ checked Sep 28, 2026	201-500	176 contacts →
	Indirect evidence “Cyber Advisors is a nationwide leader in cyber security, providing a comprehensive range of Offensive, Defensive, and Risk Management services.” Source: RevenueBase Database · checked Sep 28, 2026
14	Rational 360	Indirect evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	51-200	161 contacts →
	Indirect evidence “The Rational Way: All in Partners Rational 360 is a leading full-service strategic communications and digital agency, with offices and staff located across the country.” Source: RevenueBase Database · checked Sep 28, 2026
15	Inkhouse, An Orchestra Company	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 28, 2026	51-200	152 contacts →
	Indirect evidence “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.” Source: RevenueBase Database · checked Sep 28, 2026
16	Nuharbor	Indirect evidence	Colchester, VT, United StatesHQ checked Sep 28, 2026	51-200	151 contacts →
	Indirect evidence “nuHarbor is a U.S-based cybersecurity firm trusted by public sector and critical infrastructure organizations nationwide.” Source: RevenueBase Database · checked Sep 28, 2026
17	Accorian	Indirect evidence	East Brunswick, NJ, United StatesHQ checked Sep 28, 2026	51-200	148 contacts →
	Indirect evidence “At Accorian, we don’t just advise on compliance, we operationalize it.” Source: RevenueBase Database · checked Sep 28, 2026
18	Helpsystems	Indirect evidence	Eden Prairie, MN, United StatesHQ checked Sep 28, 2026	1,001-5,000	131 contacts →
	Indirect evidence “HelpSystems has long been known for helping organizations become more secure and autonomous.” Source: RevenueBase Database · checked Sep 28, 2026
19	Infinite	Partial evidence	New York, NY, United StatesHQ checked Sep 28, 2026	51-200	122 contacts →
	Partial evidence “Infinite Global is an award-winning strategic communications firm specializing in PR, Content & Campaigns, Digital, and Crisis & Litigation.” Source: RevenueBase Database · checked Sep 28, 2026
20	Blackcloak	Indirect evidence	Orlando, FL, United StatesHQ checked Sep 28, 2026	51-200	116 contacts →
	Indirect evidence “BlackCloak is the pioneer of Digital Executive Protection, providing online privacy protection, personal device security, home network security, and incident response to corporate…” Source: RevenueBase Database · checked Sep 28, 2026
21	Narrative Strategies	Indirect evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	51-200	111 contacts →
	Indirect evidence “Narrative is a full-service strategic communications firm creatively solving today’s most demanding reputational and public affairs challenges.” Source: RevenueBase Database · checked Sep 28, 2026
22	Gregory FCA	Indirect evidence	Ardmore, PA, United StatesHQ checked Sep 28, 2026	51-200	109 contacts →
	Indirect evidence “At Gregory FCA, we’re a 30-year success story, forged by exceeding client expectations during every engagement.” Source: RevenueBase Database · checked Sep 28, 2026
23	Shorepoint INC	Indirect evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	n/a	106 contacts →
	Indirect evidence “ShorePoint recognizes that cybersecurity is the challenge of our generation.” Source: RevenueBase Database · checked Sep 28, 2026
24	Trustedsec	Indirect evidence	Fairlawn, OH, United StatesHQ checked Sep 28, 2026	51-200	102 contacts →
	Indirect evidence “TrustedSec is an end-to-end security consulting company that provides customized services to build client-defined success.” Source: RevenueBase Database · checked Sep 28, 2026
25	Arlo Solutions	Indirect evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	51-200	100 contacts →
	Indirect evidence “Arlo Solutions (Arlo), is a Washington, DC professional services company, providing cybersecurity and management consulting services to the US government in the defense…” Source: RevenueBase Database · checked Sep 28, 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: infosec pr 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 infosec pr firms.
Partial evidence: Its own public description names part of infosec pr firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name infosec pr 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 1,797 infosec pr firms based in the United States

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Infosec pr firms based in the United States at a glance

As of Sep 28, 2026

43.1%Verified-email coverage

10.3Average contacts per company

1-10Median size (employees)

7.2%Largest-city concentration · New York

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

1,217

11-50

468

51-200

201-500

501-1,000

1,001-5,000

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 1,797 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 infosec pr 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 the United States whose own description of what they do matches “infosec pr 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 infosec pr 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 infosec pr firms, and records with no verified work email. Companies headquartered outside United States 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, 7,991 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 28, 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.

Infosec pr firms by metro

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 infosec pr 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 infosec pr firms are there based in the United States?

RevenueBase identified 1,797 infosec pr firms headquartered in the 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?

Guidepoint Security, headquartered in Reston, tops this list with the largest team on record.

Which city has the most infosec pr firms?

New York leads with 130 headquartered companies, followed by Washington (69) and San Francisco (57).

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 7,991 verified decision-maker contacts tracked across these 1,797 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 28, 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.