Company lists · Data refreshed September 2026

Top 25 Cybersecurity firms based in Washington, United States

Name: Cybersecurity firms based in Washington, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 10, 2026 182 companies tracked

RevenueBase identified 182 cybersecurity firms headquartered in Washington, United States as of September 2026 and tracks 2,233 professional contacts across them, including 909 with verified work emails and 1,001 with mobile numbers. New York is the largest hub.

This list covers cybersecurity firms headquartered in Washington, 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 10, 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 10, 2026 86% judged on-target in blind review

182Companies

2,233Contacts tracked

909Verified emails

1,001Mobile numbers

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest cybersecurity firms based in Washington, United States

Ranked by team size

Top 25 of 182 cybersecurity firms based in Washington, United States, ranked by team size, largest first. Data refreshed Sep 10, 2026. RevenueBase Smart Search rates how each company's information relates to cybersecurity 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	Babel Street	Indirect evidence	Washington, DC, United StatesHQ checked Sep 10, 2026	201-500	273 contacts →
	Indirect evidence “Babel Street delivers mission-grade risk intelligence for organizations across government, defense, and the private sector to expose hidden identities, secure vendor networks, and…” Source: RevenueBase Database · checked Sep 10, 2026
2	Illuminate Technologies	Indirect evidence	Washington, DC, United StatesHQ checked Sep 10, 2026	11-50	110 contacts →
	Indirect evidence “Illuminate provides government agencies, commercial enterprises, and network operators with the data, services, and technology that helps them protect the information that…” Source: RevenueBase Database · checked Sep 10, 2026
3	Shorepoint INC	Strong evidence	Washington, DC, United StatesHQ checked Sep 10, 2026	n/a	106 contacts →
	Strong evidence “ShorePoint recognizes that cybersecurity is the challenge of our generation.” Source: RevenueBase Database · checked Sep 10, 2026
4	Arlo Solutions	Strong evidence	Washington, DC, United StatesHQ checked Sep 10, 2026	51-200	100 contacts →
	Strong 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 10, 2026
5	Adlumin	Strong evidence	Washington, DC, United StatesHQ checked Sep 10, 2026	51-200	95 contacts →
	Strong evidence “Adlumin, an N-able company, provides enterprise-grade cybersecurity for organizations of all sizes through its innovative Security Operations as a Service platform.” Source: RevenueBase Database · checked Sep 10, 2026
6	First Health Advisory	Strong evidence	Washington, DC, United StatesHQ checked Sep 10, 2026	51-200	91 contacts →
	Strong evidence “First Health Advisory partners with healthcare and government organizations to strengthen cybersecurity strategy, build operational resilience, and safeguard patient care.” Source: RevenueBase Database · checked Sep 10, 2026
7	ACI Federal	Indirect evidence	Washington, DC, United StatesHQ checked Sep 10, 2026	201-500	87 contacts →
	Indirect evidence “ACI Federal™ is an award-winning ISO/IEC 27001 (InfoSec), ISO 9001(QMS) Certified, focused on National Security and Cyber Security Initiatives.” Source: RevenueBase Database · checked Sep 10, 2026
8	Redlattice, INC	Indirect evidence	Washington, DC, United StatesHQ checked Sep 10, 2026	501-1,000	75 contacts →
	Indirect evidence “REDLattice™ is a U.S-owned global defense tech company delivering preeminent digital access for its customers within the global intelligence community, law enforcement, and…” Source: RevenueBase Database · checked Sep 10, 2026
9	TDI Tetrad Digital Integrity	Strong evidence	Washington, DC, United StatesHQ checked Sep 10, 2026	51-200	71 contacts →
	Strong evidence “For over 20 years, TDI’s one and only passion has been delivering cybersecurity solutions to effectively manage the business of cyber.” Source: RevenueBase Database · checked Sep 10, 2026
10	Greynoise Intelligence	Indirect evidence	Washington, DC, United StatesHQ checked Sep 10, 2026	11-50	69 contacts →
	Indirect evidence “GreyNoise empowers defenders to work on the most urgent and critical threats without being overwhelmed by noisy, low-priority alerts.” Source: RevenueBase Database · checked Sep 10, 2026
11	The Chertoff Group	Indirect evidence	Washington, DC, United StatesHQ checked Sep 10, 2026	11-50	67 contacts →
	Indirect evidence “The Chertoff Group is a global leader in security.” Source: RevenueBase Database · checked Sep 10, 2026
12	FWG Solutions	Indirect evidence	Washington, DC, United StatesHQ checked Sep 10, 2026	51-200	66 contacts →
	Indirect evidence “FWG Solutions is an award-winning firm certified by the SBA as an 8(a) that was founded in 2012.” Source: RevenueBase Database · checked Sep 10, 2026
13	Fusion Cyber	Indirect evidence	Washington, DC, United StatesHQ checked Sep 10, 2026	11-50	43 contacts →
	Indirect evidence “Fusion Cyber is solving the cyber talent gap with a suite of AI product(s)-human-powered, AI-enhanced!” Source: RevenueBase Database · checked Sep 10, 2026
14	Celerium	Indirect evidence	Washington, DC, United StatesHQ checked Sep 10, 2026	51-200	39 contacts →
	Indirect evidence “Celerium powers active cyber defense solutions to help organizations detect, prevent, and contain data breaches.” Source: RevenueBase Database · checked Sep 10, 2026
15	Star Lab, A Wind River Company	Indirect evidence	Washington, DC, United StatesHQ checked Sep 10, 2026	11-50	35 contacts →
	Indirect evidence “Star Lab specializes in the development and productization of embedded security technologies for mission-critical systems.” Source: RevenueBase Database · checked Sep 10, 2026
16	Rebellion Defense	Indirect evidence	Washington, DC, United StatesHQ checked Sep 10, 2026	51-200	28 contacts →
	Indirect evidence “Rebellion Defense is a technology company developing advanced software to ensure mission-critical organizations stay ahead of emerging threats.” Source: RevenueBase Database · checked Sep 10, 2026
17	Jsoc It, INC	Strong evidence	Washington, DC, United StatesHQ checked Sep 10, 2026	11-50	28 contacts →
	Strong evidence “At JSOC IT, we don’t just offer cybersecurity solutions-we build resilient, secure environments tailored to your business needs.” Source: RevenueBase Database · checked Sep 10, 2026
18	Arrow Team	Indirect evidence	Washington, DC, United StatesHQ checked Sep 10, 2026	11-50	27 contacts →
	Indirect evidence “Turning ransomware disasters into resilient comebacks in record time.” Source: RevenueBase Database · checked Sep 10, 2026
19	Valens Global	Indirect evidence	Washington, DC, United StatesHQ checked Sep 10, 2026	11-50	26 contacts →
	Indirect evidence “Valens Global takes a comprehensive, methodical, and thoughtful approach to security.” Source: RevenueBase Database · checked Sep 10, 2026
20	Datapatrol	Indirect evidence	Washington, DC, United StatesHQ checked Sep 10, 2026	11-50	24 contacts →
	Indirect evidence “DataPatrol is a software company, specialized in providing Security and Privacy of company's data and information in an evolved way.” Source: RevenueBase Database · checked Sep 10, 2026
21	Good Harbor Security Risk Management	Indirect evidence	Washington, DC, United StatesHQ checked Sep 10, 2026	11-50	24 contacts →
	Indirect evidence “Good Harbor Security Risk Management, LLC advises Boards, CEOs, CISOs and other corporate executives, investment professionals, and government leaders on managing cyber risk.” Source: RevenueBase Database · checked Sep 10, 2026
22	KSE	Strong evidence	Washington, DC, United StatesHQ checked Sep 10, 2026	11-50	23 contacts →
	Strong evidence “Ready to unlock your potential in cybersecurity?” Source: RevenueBase Database · checked Sep 10, 2026
23	Kglobal NOW Rogerco	Indirect evidence	Washington, DC, United StatesHQ checked Sep 10, 2026	51-200	18 contacts →
	Indirect evidence “kglobal is now part of ROGERCO.” Source: RevenueBase Database · checked Sep 10, 2026
24	The Teneo Group	Indirect evidence	Washington, DC, United StatesHQ checked Sep 10, 2026	11-50	16 contacts →
	Indirect evidence “Keeping your operations moving and your network secure is our priority because we know that’s your priority.” Source: RevenueBase Database · checked Sep 10, 2026
25	Asc3nd Technologies Group	Indirect evidence	Washington, DC, United StatesHQ checked Sep 10, 2026	11-50	16 contacts →
	Indirect evidence “Helping U.S.” Source: RevenueBase Database · checked Sep 10, 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 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 cybersecurity firms.
Partial evidence: Its own public description names part of cybersecurity firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name cybersecurity 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 182 cybersecurity firms based in Washington, United States

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 909 reachable decision-makers.

Free signup · no credit card

View the full list →

Cybersecurity firms based in Washington, United States at a glance

As of Sep 10, 2026

40.7%Verified-email coverage

44.8%Mobile-number coverage

12.3Average contacts per company

1-10Median size (employees)

179.1%Largest-city concentration · New York

Sep 10, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

10001+

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 13.0d

8300–30

7031–60

061–90

090–180

9180+

Company record updated

Median 51.0d

00–30

1,21631–60

69361–90

16490–180

160180+

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 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 Washington, United States whose own description of what they do matches “cybersecurity 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 cybersecurity 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 cybersecurity firms, and records with no verified work email. Companies headquartered outside Washington 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, 909 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 10, 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 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 cybersecurity 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 cybersecurity firms are there based in Washington, United States?

RevenueBase identified 182 cybersecurity firms headquartered in Washington, 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?

Babel Street, headquartered in Washington, tops this list with the largest team on record.

Which city has the most cybersecurity firms?

New York leads with 326 headquartered companies, followed by Washington (184) and Austin (181).

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 909 verified decision-maker contacts tracked across these 182 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 10, 2026.

Ready to reach these companies? Verified emails and direct dials for all 182 cybersecurity firms based in Washington, United States. Start with a free account, no credit card.

Download this list →

Related lists

Cybersecurity firms by geography

Browse the directory

Browse: Companies home · Cybersecurity firms in United States · All United States lists · All Cybersecurity firms lists · New lists

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.