Company lists · Data refreshed September 2026
Top 25 Cyber security consultancies based in Seattle, United States
RevenueBase identified 63 cyber security consultancies headquartered in Seattle, United States as of September 2026 and tracks 436 professional contacts across them, including 214 with verified work emails. New York is the largest hub.
This list covers cyber security consultancies headquartered in Seattle, 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 14, 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 cyber security consultancies based in Seattle, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 107 contacts → | ||||
Partial evidence “IOActive is a trusted partner for Global enterprises, providing research-fueled security services across all industries.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 2 | 39 contacts → | ||||
Partial evidence “Anvil is an information security consulting firm focused on top tier consulting.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 3 | 36 contacts → | ||||
Partial evidence “Kalles Group partners with CIOs, CISOs, and security leaders to strengthen security programs, reduce operational risk, and build resilience during periods of change.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 4 | 27 contacts → | ||||
Partial evidence “We are a cybersecurity company specializing in governance, risk management and compliance, Cloud Security, and Application Security.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 5 | 22 contacts → | ||||
Partial evidence “DSE is a boutique security firm with a focus on Active Directory.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 6 | 20 contacts → | ||||
Indirect evidence “SWAT Systems is now Convergence Networks!” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 7 | 20 contacts → | ||||
Partial evidence “Rhino Security Labs is a top penetration testing and security assessment firm with a focus on cloud pentesting (AWS, GCP, Azure), network pentesting, web application pentesting…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 8 | 15 contacts → | ||||
Strong evidence “Law & Forensics is a global legal engineering firm, serving clients in all 50 states and more than 25 countries, with solutions for Cyber Security, Cyber Warfare, eDiscovery…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 9 | 15 contacts → | ||||
Indirect evidence “Interplay IT is a trusted, Seattle-based IT partner specializing in Architecture, Engineering, Construction, and Mission-Driven Nonprofits.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 10 | 7 contacts → | ||||
Indirect evidence “Forge Technology Advisors provides a customized suite of IT and Telecommunications consulting services-including Cybersecurity, SASE, UCaaS, CCaaS, and Networking-tailored to meet…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 11 | 7 contacts → | ||||
Indirect evidence “Vivid Technical Consulting makes cybersecurity compliance achievable for every contractor in the defense industrial base.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 12 | 5 contacts → | ||||
Strong evidence “Security Research Group provides military-grade cybersecurity solutions, specializing in threat detection, compliance, incident response, and custom cyber strategies to protect…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 13 | 5 contacts → | ||||
Indirect evidence “Intelligent Technical Solutions is your trusted business partner for all your Cybersecurity, Managed and Co-managed IT support, Risk & Compliance, Data Analytics, and Consulting…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 14 | 4 contacts → | ||||
Indirect evidence “Trusted IT support, strategy, and cybersecurity for small businesses.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 15 | 3 contacts → | ||||
Partial evidence “At Positroniq, we help to protect organizations through assessment and advisory services designed to improve security, risk, and compliance programs and processes.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 16 | 3 contacts → | ||||
Partial evidence “A small, surgical team of security specialists with deep expertise in embedded systems, IoT, and connected hardware.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 17 | 3 contacts → | ||||
Indirect evidence “CyberJab is a veteran-owned cybersecurity company built by practitioners who've been in the fight.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 18 | 3 contacts → | ||||
Indirect evidence “VCTO Secure empowers clients by Making I.T.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 19 | 2 contacts → | ||||
Partial evidence “Zove Security secures the products and platforms that power innovation and underpin all our digital lives.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 20 | 2 contacts → | ||||
Partial evidence “Culper Partners offers strategic business consulting at the intersection of technology, national security, law enforcement, public policy and regulation.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 21 | 2 contacts → | ||||
Indirect evidence “Section9Labs is a startup based in Seattle, WA.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 22 | 2 contacts → | ||||
Partial evidence “Verification Labs is a Seattle-based security company that places an emphasis on doing extremely in-depth technical testing so we can provide our clients with the most thorough…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 23 | 1 contacts → | ||||
Indirect evidence “At Stepfar Technology Group, we are dedicated to empowering businesses with cutting-edge technology solutions.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 24 | 1 contacts → | ||||
Indirect evidence “SeattlePro Enterprises is a close-knit team of creative visionaries offering companies the guidance and education professionals need to stay competitive in today's market.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 25 | 1 contacts → | ||||
Indirect evidence “At Aorca, we deliver reliable, secure, and strategic IT services designed to help businesses thrive in an increasingly digital world.” Source: RevenueBase Database · checked Sep 14, 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: cyber security consultancies. 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 cyber security consultancies.
- Partial evidence
- Its own public description names part of cyber security consultancies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name cyber security consultancies. 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 63 cyber security consultancies based in Seattle, United States
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Cyber security consultancies based in Seattle, United States at a glance
As of Sep 14, 2026Companies by employee count
Email recency for this list is measured across the whole United States list rather than for Seattle, so it is reported there. Company counts and contact totals on this page are exact for Seattle, over 63 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 cyber security consultancies, 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 Seattle, United States whose own description of what they do matches “cyber security consultancies”. 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 cyber security consultancies), 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 cyber security consultancies, and records with no verified work email. Companies headquartered outside Seattle 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, 214 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 14, 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.
Cyber security consultancies by metro in the United States
- Cyber security consultancies in New York234
- Cyber security consultancies in Washington164
- Cyber security consultancies in Houston141
- Cyber security consultancies in Atlanta138
- Cyber security consultancies in Austin138
- Cyber security consultancies in Dallas130
- Cyber security consultancies in Chicago117
- Cyber security consultancies in Miami115
- Cyber security consultancies in San Francisco101
- Cyber security consultancies in Tampa98
- Cyber security consultancies in Los Angeles85
- Cyber security consultancies in Arlington80
- Cyber security consultancies in San Diego79
- Cyber security consultancies in Denver73
- Cyber security consultancies in Boston71
- Cyber security consultancies in Charlotte66
- Cyber security consultancies in Seattle63
- Cyber security consultancies in Columbia61
- Cyber security consultancies in Alexandria59
- Cyber security consultancies in Orlando57
- Cyber security consultancies in San Antonio56
- Cyber security consultancies in Reston53
- Cyber security consultancies in Las Vegas51
- Cyber security consultancies in Phoenix50
- Cyber security consultancies in Baltimore44
- Cyber security consultancies in Mclean43
- Cyber security consultancies in Portland43
- Cyber security consultancies in Raleigh42
- Cyber security consultancies in Huntsville41
- Cyber security consultancies in Sheridan41
- Cyber security consultancies in Fairfax40
- Cyber security consultancies in Ashburn39
- Cyber security consultancies in Plano39
- Cyber security consultancies in Wilmington38
- Cyber security consultancies in Columbus37
- Cyber security consultancies in Colorado Springs35
- Cyber security consultancies in Minneapolis35
- Cyber security consultancies in San Jose33
- Cyber security consultancies in Pittsburgh32
- Cyber security consultancies in Herndon31
- Cyber security consultancies in Nashville31
- Cyber security consultancies in Richmond31
- Cyber security consultancies in Dover30
- Cyber security consultancies in Irvine30
- Cyber security consultancies in Scottsdale30
- Cyber security consultancies in Frisco29
- Cyber security consultancies in Philadelphia29
- Cyber security consultancies in Fort Lauderdale28
- Cyber security consultancies in Vienna26
- Cyber security consultancies in Alpharetta25
- Cyber security consultancies in Indianapolis25
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 cyber security consultancies, 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 cyber security consultancies are there based in Seattle, United States?
RevenueBase identified 63 cyber security consultancies headquartered in Seattle, 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?
Ioactive, INC, headquartered in Seattle, tops this list with the largest team on record.
Which city has the most cyber security consultancies?
New York leads with 234 headquartered companies, followed by Washington (164) and Houston (141).
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 214 verified decision-maker contacts tracked across these 63 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 14, 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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