Company lists · Data refreshed October 2026
Top 25 Cybersecurity firms based in Seattle, United States
RevenueBase identified 71 company matches for cybersecurity firms associated with Seattle, United States as of October 2026 and tracks 2,498 professional contacts across them, including 1,452 with verified work emails. Across the United States, New York is the largest hub for this category (358 companies); Seattle has 71.
This list covers company matches for cybersecurity firms associated with Seattle, 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 October 1, 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.
The 25 largest cybersecurity firms based in Seattle, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,059 contacts → | ||||
Exact match “WatchGuard® Technologies, Inc.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase | |||||
| 2 | 794 contacts → | ||||
Exact match “Absolute Security is partnered with more than 28 of the world’s leading endpoint device manufacturers, embedded in the firmware of 600 million devices, trusted by global…” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase | |||||
| 3 | 127 contacts → | ||||
Exact match “XBOW is the autonomous offensive security company redefining cyber defense for the AI era.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase | |||||
| 4 | 107 contacts → | ||||
Exact match “IOActive is a trusted partner for Global enterprises, providing research-fueled security services across all industries.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase | |||||
| 5 | 54 contacts → | ||||
Exact match “Dropzone AI weaponizes LLMs for cyber defenders, delivering the Agentic SOC: AI agents that collaborate 24/7 to beat attackers at scale.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase | |||||
| 6 | 39 contacts → | ||||
Exact match “Anvil is an information security consulting firm focused on top tier consulting.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase | |||||
| 7 | 27 contacts → | ||||
Exact match “We are a cybersecurity company specializing in governance, risk management and compliance, Cloud Security, and Application Security.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase | |||||
| 8 | 24 contacts → | ||||
Exact match “Defiant is the industry leader in website security.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase | |||||
| 9 | 22 contacts → | ||||
Exact match “DSE is a boutique security firm with a focus on Active Directory.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase | |||||
| 10 | 20 contacts → | ||||
Exact match “SWAT Systems is now Convergence Networks!” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase | |||||
| 11 | 20 contacts → | ||||
Exact match “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…” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase | |||||
| 12 | 15 contacts → | ||||
Exact match “Galvanick protects the industrial world against cyber attacks.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase | |||||
| 13 | 15 contacts → | ||||
Exact match “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…” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase | |||||
| 14 | 10 contacts → | ||||
Exact match “Secure Source International is a global security risk mitigation firm that serves family offices, HNW individuals, corporate enterprises and law firms throughout the US and Europe.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase | |||||
| 15 | 7 contacts → | ||||
Exact match “Vivid Technical Consulting makes cybersecurity compliance achievable for every contractor in the defense industrial base.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase | |||||
| 16 | 6 contacts → | ||||
Exact match “Protect AI is a cybersecurity company focused on AI & ML systems.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase | |||||
| 17 | 5 contacts → | ||||
Exact match “Generative AI has shifted the cybersecurity landscape, reducing the time it takes to create hyper-convincing phishing and fraud by 200x.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase | |||||
| 18 | 5 contacts → | ||||
Exact match “Security Research Group provides military-grade cybersecurity solutions, specializing in threat detection, compliance, incident response, and custom cyber strategies to protect…” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase | |||||
| 19 | 5 contacts → | ||||
Exact match “Alpha Level is a next-generation cybersecurity company transforming how Security Operations Centers (SOCs) detect and respond to threats.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase | |||||
| 20 | 4 contacts → | ||||
Exact match “Trusted IT support, strategy, and cybersecurity for small businesses.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase | |||||
| 21 | 4 contacts → | ||||
Exact match “Proportional provides a range of services to safeguard the communications, data and privacy of key individuals and their closest confidants.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase | |||||
| 22 | 3 contacts → | ||||
Exact match “aiShield is dedicated to protecting seniors from the growing threat of cybercrime using advanced AI technology.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase | |||||
| 23 | 3 contacts → | ||||
Exact match “We are a boutique cybersecurity firm dedicated to meticulous foundations, straightforward processes, and going beyond best practices.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase | |||||
| 24 | 3 contacts → | ||||
Exact match “A small, surgical team of security specialists with deep expertise in embedded systems, IoT, and connected hardware.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase | |||||
| 25 | 3 contacts → | ||||
Exact match “CyberJab is a veteran-owned cybersecurity company built by practitioners who've been in the fight.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase | |||||
RevenueBase SmartSearch
Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.
This list uses Exact for “cybersecurity firms”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.
Showing 25 of 71 cybersecurity firms based in Seattle, United States
See the full list, filter by size, metro and specialty, and access 1,452 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Cybersecurity firms based in Seattle, United States at a glance
As of Oct 1, 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 71 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 Seattle, United States whose business descriptions match “cybersecurity firms” 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 1,452 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 October 1, 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.
Cybersecurity firms by metro in the United States
- Cybersecurity firms in New York358
- Cybersecurity firms in Austin182
- Cybersecurity firms in San Francisco182
- Cybersecurity firms in Washington180
- Cybersecurity firms in Atlanta153
- Cybersecurity firms in Houston142
- Cybersecurity firms in Miami142
- Cybersecurity firms in Dallas134
- Cybersecurity firms in Chicago127
- Cybersecurity firms in Tampa116
- Cybersecurity firms in San Diego92
- Cybersecurity firms in Arlington90
- Cybersecurity firms in Boston87
- Cybersecurity firms in Los Angeles87
- Cybersecurity firms in Columbia77
- Cybersecurity firms in Denver77
- Cybersecurity firms in Las Vegas76
- Cybersecurity firms in Orlando75
- Cybersecurity firms in Reston69
- Cybersecurity firms in Charlotte67
- Cybersecurity firms in San Jose66
- Cybersecurity firms in San Antonio64
- Cybersecurity firms in Phoenix63
- Cybersecurity firms in Wilmington57
- Cybersecurity firms in Baltimore55
- Cybersecurity firms in Alexandria51
- Cybersecurity firms in Huntsville50
- Cybersecurity firms in Fairfax49
- Cybersecurity firms in Mclean49
- Cybersecurity firms in Sheridan48
- Cybersecurity firms in Portland43
- Cybersecurity firms in Dover42
- Cybersecurity firms in Raleigh42
- Cybersecurity firms in Ashburn41
- Cybersecurity firms in Colorado Springs40
- Cybersecurity firms in Herndon40
- Cybersecurity firms in Philadelphia40
- Cybersecurity firms in Fort Lauderdale39
- Cybersecurity firms in Pittsburgh39
- Cybersecurity firms in Plano38
- Cybersecurity firms in Scottsdale37
- Cybersecurity firms in Palo Alto35
- Cybersecurity firms in Minneapolis34
- Cybersecurity firms in Nashville32
- Cybersecurity firms in Indianapolis30
- Cybersecurity firms in Richmond30
- Cybersecurity firms in Vienna30
- Cybersecurity firms in Alpharetta29
- Cybersecurity firms in Irvine29
- Cybersecurity firms in Columbus28
- Cybersecurity firms in Salt Lake City28
- Cybersecurity firms in Santa Clara28
- Cybersecurity firms in Leesburg26
- Cybersecurity firms in Sunnyvale26
- Cybersecurity firms in Bethesda25
- Cybersecurity firms in St. Louis25
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 “cybersecurity firms”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many cybersecurity firms are there based in Seattle, United States?
RevenueBase identified 71 company matches for cybersecurity firms associated with Seattle, United States as of October 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?
Watchguard Technologies 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 cybersecurity firms?
New York leads the United States with 358 company records, followed by Austin (182) and San Francisco (182). Seattle has 71.
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 1,452 professional contacts with verified work emails tracked across these 71 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 October 1, 2026.
Ready to reach these companies? Verified emails and direct dials for all 71 cybersecurity firms based in Seattle, United States. Start with a free account, no credit card.
Download this list →Related lists
Cybersecurity firms by geography
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- Cybersecurity firms based in France
- Cybersecurity firms based in Canada
- Cybersecurity firms based in Brazil
- Cybersecurity firms based in Australia
- Cybersecurity firms based in Germany
- Cybersecurity firms based in Spain
- Cybersecurity firms based in the Netherlands
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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.
More company lists
Company intelligence · public preview
Top 25 cybersecurity firms based in Seattle, United States
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 71 matching company records for cybersecurity firms based in Seattle, United States, with 2,498 tracked contacts and 1,452 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: October 1, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 cybersecurity firms based in Seattle, United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  Watchguard Technologieswatchguard.comHQ: Seattle, WA, United StatesReported employees: 1,001-5,000 | Seattle, WA, United States | 1,001-5,000 | Exact match | 1,059 contacts → |
“WatchGuard® Technologies, Inc.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Absolute Securityabsolute.comHQ: Seattle, WA, United StatesReported employees: 501-1,000 | Seattle, WA, United States | 501-1,000 | Exact match | 794 contacts → |
“Absolute Security is partnered with more than 28 of the world’s leading endpoint device manufacturers, embedded in the firmware of 600 million devices, trusted by global…” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  XBOWxbow.comHQ: Seattle, WA, United StatesReported employees: 201-500 | Seattle, WA, United States | 201-500 | Exact match | 127 contacts → |
“XBOW is the autonomous offensive security company redefining cyber defense for the AI era.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Ioactive, INCioactive.comHQ: Seattle, WA, United StatesReported employees: 51-200 | Seattle, WA, United States | 51-200 | Exact match | 107 contacts → |
“IOActive is a trusted partner for Global enterprises, providing research-fueled security services across all industries.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Dropzone AIdropzone.aiHQ: Seattle, WA, United StatesReported employees: 51-200 | Seattle, WA, United States | 51-200 | Exact match | 54 contacts → |
“Dropzone AI weaponizes LLMs for cyber defenders, delivering the Agentic SOC: AI agents that collaborate 24/7 to beat attackers at scale.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Anvil Secureanvilsecure.comHQ: Seattle, WA, United StatesReported employees: 11-50 | Seattle, WA, United States | 11-50 | Exact match | 39 contacts → |
“Anvil is an information security consulting firm focused on top tier consulting.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Mirai Securitymiraisecurity.comHQ: Seattle, WA, United StatesReported employees: 11-50 | Seattle, WA, United States | 11-50 | Exact match | 27 contacts → |
“We are a cybersecurity company specializing in governance, risk management and compliance, Cloud Security, and Application Security.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Defiantdefiant.comHQ: Seattle, WA, United StatesReported employees: 11-50 | Seattle, WA, United States | 11-50 | Exact match | 24 contacts → |
“Defiant is the industry leader in website security.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  DSEdse.teamHQ: Seattle, WA, United StatesReported employees: 11-50 | Seattle, WA, United States | 11-50 | Exact match | 22 contacts → |
“DSE is a boutique security firm with a focus on Active Directory.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Swat Systemsconvergencenetworks.comHQ: Seattle, WA, United StatesReported employees: 11-50 | Seattle, WA, United States | 11-50 | Exact match | 20 contacts → |
“SWAT Systems is now Convergence Networks!” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Rhino Security Labs, INCrhinosecuritylabs.comHQ: Seattle, WA, United StatesReported employees: 11-50 | Seattle, WA, United States | 11-50 | Exact match | 20 contacts → |
“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…” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Galvanickgalvanick.comHQ: Seattle, WA, United StatesReported employees: 11-50 | Seattle, WA, United States | 11-50 | Exact match | 15 contacts → |
“Galvanick protects the industrial world against cyber attacks.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  LAW & Forensics, Digital Forensics And Legal Engineering For Complex Matterslawandforensics.comHQ: Seattle, WA, United StatesReported employees: 11-50 | Seattle, WA, United States | 11-50 | Exact match | 15 contacts → |
“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…” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Secure Source International, LLCsecuresource.comHQ: Seattle, WA, United StatesReported employees: 1-10 | Seattle, WA, United States | 1-10 | Exact match | 10 contacts → |
“Secure Source International is a global security risk mitigation firm that serves family offices, HNW individuals, corporate enterprises and law firms throughout the US and Europe.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Vivid Technical Consulting LLCvividtechconsulting.comHQ: Seattle, WA, United StatesReported employees: 1-10 | Seattle, WA, United States | 1-10 | Exact match | 7 contacts → |
“Vivid Technical Consulting makes cybersecurity compliance achievable for every contractor in the defense industrial base.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Protect AIprotectai.com HQ: Seattle, WA, United StatesReported employees: 11-50 | Seattle, WA, United States | 11-50 | Exact match | 6 contacts → |
“Protect AI is a cybersecurity company focused on AI & ML systems.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Bigfilterbigfilter.aiHQ: Seattle, WA, United StatesReported employees: 1-10 | Seattle, WA, United States | 1-10 | Exact match | 5 contacts → |
“Generative AI has shifted the cybersecurity landscape, reducing the time it takes to create hyper-convincing phishing and fraud by 200x.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Security Research Groupsecurityresearch.usHQ: Seattle, WA, United StatesReported employees: 1-10 | Seattle, WA, United States | 1-10 | Exact match | 5 contacts → |
“Security Research Group provides military-grade cybersecurity solutions, specializing in threat detection, compliance, incident response, and custom cyber strategies to protect…” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Alpha Levelalphalevel.aiHQ: Seattle, WA, United StatesReported employees: 1-10 | Seattle, WA, United States | 1-10 | Exact match | 5 contacts → |
“Alpha Level is a next-generation cybersecurity company transforming how Security Operations Centers (SOCs) detect and respond to threats.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Vertiancevertiance.comHQ: Seattle, United StatesReported employees: 1-10 | Seattle, United States | 1-10 | Exact match | 4 contacts → |
“Trusted IT support, strategy, and cybersecurity for small businesses.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Proportionalproportionalsecurity.comHQ: Seattle, WA, United StatesReported employees: 1-10 | Seattle, WA, United States | 1-10 | Exact match | 4 contacts → |
“Proportional provides a range of services to safeguard the communications, data and privacy of key individuals and their closest confidants.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Aishield INCaishield.meHQ: Seattle, WA, United StatesReported employees: 1-10 | Seattle, WA, United States | 1-10 | Exact match | 3 contacts → |
“aiShield is dedicated to protecting seniors from the growing threat of cybercrime using advanced AI technology.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Kahu Groupkahu.groupHQ: Seattle, WA, United StatesReported employees: 1-10 | Seattle, WA, United States | 1-10 | Exact match | 3 contacts → |
“We are a boutique cybersecurity firm dedicated to meticulous foundations, straightforward processes, and going beyond best practices.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Crystal Peak Securitycrystalpeaksecurity.comHQ: Seattle, WA, United StatesReported employees: 1-10 | Seattle, WA, United States | 1-10 | Exact match | 3 contacts → |
“A small, surgical team of security specialists with deep expertise in embedded systems, IoT, and connected hardware.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Cyberjabcyberjab.orgHQ: Seattle, United StatesReported employees: 1-10 | Seattle, United States | 1-10 | Exact match | 3 contacts → |
“CyberJab is a veteran-owned cybersecurity company built by practitioners who've been in the fight.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 71 company matches
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Cybersecurity firms: dataset insights
October 1, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
71 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 71 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: October 1, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Cybersecurity firms by metro in the United States
- Cybersecurity firms in New York358
- Cybersecurity firms in Austin182
- Cybersecurity firms in San Francisco182
- Cybersecurity firms in Washington180
- Cybersecurity firms in Atlanta153
- Cybersecurity firms in Houston142
- Cybersecurity firms in Miami142
- Cybersecurity firms in Dallas134
- Cybersecurity firms in Chicago127
- Cybersecurity firms in Tampa116
- Cybersecurity firms in San Diego92
- Cybersecurity firms in Arlington90
- Cybersecurity firms in Boston87
- Cybersecurity firms in Los Angeles87
- Cybersecurity firms in Columbia77
- Cybersecurity firms in Denver77
- Cybersecurity firms in Las Vegas76
- Cybersecurity firms in Orlando75
- Cybersecurity firms in Reston69
- Cybersecurity firms in Charlotte67
- Cybersecurity firms in San Jose66
- Cybersecurity firms in San Antonio64
- Cybersecurity firms in Phoenix63
- Cybersecurity firms in Wilmington57
- Cybersecurity firms in Baltimore55
- Cybersecurity firms in Alexandria51
- Cybersecurity firms in Huntsville50
- Cybersecurity firms in Fairfax49
- Cybersecurity firms in Mclean49
- Cybersecurity firms in Sheridan48
- Cybersecurity firms in Portland43
- Cybersecurity firms in Dover42
- Cybersecurity firms in Raleigh42
- Cybersecurity firms in Ashburn41
- Cybersecurity firms in Colorado Springs40
- Cybersecurity firms in Herndon40
- Cybersecurity firms in Philadelphia40
- Cybersecurity firms in Fort Lauderdale39
- Cybersecurity firms in Pittsburgh39
- Cybersecurity firms in Plano38
- Cybersecurity firms in Scottsdale37
- Cybersecurity firms in Palo Alto35
- Cybersecurity firms in Minneapolis34
- Cybersecurity firms in Nashville32
- Cybersecurity firms in Indianapolis30
- Cybersecurity firms in Richmond30
- Cybersecurity firms in Vienna30
- Cybersecurity firms in Alpharetta29
- Cybersecurity firms in Irvine29
- Cybersecurity firms in Columbus28
- Cybersecurity firms in Salt Lake City28
- Cybersecurity firms in Santa Clara28
- Cybersecurity firms in Leesburg26
- Cybersecurity firms in Sunnyvale26
- Cybersecurity firms in Bethesda25
- Cybersecurity firms in St. Louis25
Questions about this company list
What does Exact match mean for cybersecurity firms?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many cybersecurity firms did RevenueBase find based in Seattle, United States?
The saved snapshot records 71 matching company records, 2,498 tracked contacts and 1,452 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: October 1, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Cybersecurity firms by geography
- Cybersecurity firms based in the United States
- Cybersecurity firms based in the United Kingdom
- Cybersecurity firms based in France
- Cybersecurity firms based in Canada
- Cybersecurity firms based in Brazil
- Cybersecurity firms based in Australia
- Cybersecurity firms based in Germany
- Cybersecurity firms based in Spain
- Cybersecurity firms based in the Netherlands
- Cybersecurity firms based in Italy
- Cybersecurity firms based in Israel
- Cybersecurity firms based in Mexico
Cite this list
RevenueBase Data Team. Top 25 cybersecurity firms based in Seattle, United States. Snapshot: October 1, 2026. https://revenuebase.ai/companies/cybersecurity-firms/united-states/seattle.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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Company intelligence · public preview
Top 25 cybersecurity firms based in Seattle, United States
RevenueBase records 71 matching company records for cybersecurity firms based in Seattle, United States, with 2,498 tracked contacts and 1,452 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: October 1, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 cybersecurity firms based in Seattle, United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | Watchguard Technologieswatchguard.com HQ: Seattle, WA, United StatesReported employees: 1,001-5,000 | Seattle, WA, United States | 1,001-5,000 | Exact match | 1,059 contacts → |
“WatchGuard® Technologies, Inc.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Absolute Securityabsolute.com HQ: Seattle, WA, United StatesReported employees: 501-1,000 | Seattle, WA, United States | 501-1,000 | Exact match | 794 contacts → |
“Absolute Security is partnered with more than 28 of the world’s leading endpoint device manufacturers, embedded in the firmware of 600 million devices, trusted by global…” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | XBOWxbow.com HQ: Seattle, WA, United StatesReported employees: 201-500 | Seattle, WA, United States | 201-500 | Exact match | 127 contacts → |
“XBOW is the autonomous offensive security company redefining cyber defense for the AI era.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Ioactive, INCioactive.com HQ: Seattle, WA, United StatesReported employees: 51-200 | Seattle, WA, United States | 51-200 | Exact match | 107 contacts → |
“IOActive is a trusted partner for Global enterprises, providing research-fueled security services across all industries.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Dropzone AIdropzone.ai HQ: Seattle, WA, United StatesReported employees: 51-200 | Seattle, WA, United States | 51-200 | Exact match | 54 contacts → |
“Dropzone AI weaponizes LLMs for cyber defenders, delivering the Agentic SOC: AI agents that collaborate 24/7 to beat attackers at scale.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Anvil Secureanvilsecure.com HQ: Seattle, WA, United StatesReported employees: 11-50 | Seattle, WA, United States | 11-50 | Exact match | 39 contacts → |
“Anvil is an information security consulting firm focused on top tier consulting.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Mirai Securitymiraisecurity.com HQ: Seattle, WA, United StatesReported employees: 11-50 | Seattle, WA, United States | 11-50 | Exact match | 27 contacts → |
“We are a cybersecurity company specializing in governance, risk management and compliance, Cloud Security, and Application Security.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Defiantdefiant.com HQ: Seattle, WA, United StatesReported employees: 11-50 | Seattle, WA, United States | 11-50 | Exact match | 24 contacts → |
“Defiant is the industry leader in website security.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | DSEdse.team HQ: Seattle, WA, United StatesReported employees: 11-50 | Seattle, WA, United States | 11-50 | Exact match | 22 contacts → |
“DSE is a boutique security firm with a focus on Active Directory.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Swat Systemsconvergencenetworks.com HQ: Seattle, WA, United StatesReported employees: 11-50 | Seattle, WA, United States | 11-50 | Exact match | 20 contacts → |
“SWAT Systems is now Convergence Networks!” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Rhino Security Labs, INCrhinosecuritylabs.com HQ: Seattle, WA, United StatesReported employees: 11-50 | Seattle, WA, United States | 11-50 | Exact match | 20 contacts → |
“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…” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Galvanickgalvanick.com HQ: Seattle, WA, United StatesReported employees: 11-50 | Seattle, WA, United States | 11-50 | Exact match | 15 contacts → |
“Galvanick protects the industrial world against cyber attacks.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | LAW & Forensics, Digital Forensics And Legal Engineering For Complex Matterslawandforensics.com HQ: Seattle, WA, United StatesReported employees: 11-50 | Seattle, WA, United States | 11-50 | Exact match | 15 contacts → |
“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…” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Secure Source International, LLCsecuresource.com HQ: Seattle, WA, United StatesReported employees: 1-10 | Seattle, WA, United States | 1-10 | Exact match | 10 contacts → |
“Secure Source International is a global security risk mitigation firm that serves family offices, HNW individuals, corporate enterprises and law firms throughout the US and Europe.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Vivid Technical Consulting LLCvividtechconsulting.com HQ: Seattle, WA, United StatesReported employees: 1-10 | Seattle, WA, United States | 1-10 | Exact match | 7 contacts → |
“Vivid Technical Consulting makes cybersecurity compliance achievable for every contractor in the defense industrial base.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Protect AIprotectai.com HQ: Seattle, WA, United StatesReported employees: 11-50 | Seattle, WA, United States | 11-50 | Exact match | 6 contacts → |
“Protect AI is a cybersecurity company focused on AI & ML systems.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Bigfilterbigfilter.ai HQ: Seattle, WA, United StatesReported employees: 1-10 | Seattle, WA, United States | 1-10 | Exact match | 5 contacts → |
“Generative AI has shifted the cybersecurity landscape, reducing the time it takes to create hyper-convincing phishing and fraud by 200x.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Security Research Groupsecurityresearch.us HQ: Seattle, WA, United StatesReported employees: 1-10 | Seattle, WA, United States | 1-10 | Exact match | 5 contacts → |
“Security Research Group provides military-grade cybersecurity solutions, specializing in threat detection, compliance, incident response, and custom cyber strategies to protect…” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Alpha Levelalphalevel.ai HQ: Seattle, WA, United StatesReported employees: 1-10 | Seattle, WA, United States | 1-10 | Exact match | 5 contacts → |
“Alpha Level is a next-generation cybersecurity company transforming how Security Operations Centers (SOCs) detect and respond to threats.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Vertiancevertiance.com HQ: Seattle, United StatesReported employees: 1-10 | Seattle, United States | 1-10 | Exact match | 4 contacts → |
“Trusted IT support, strategy, and cybersecurity for small businesses.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Proportionalproportionalsecurity.com HQ: Seattle, WA, United StatesReported employees: 1-10 | Seattle, WA, United States | 1-10 | Exact match | 4 contacts → |
“Proportional provides a range of services to safeguard the communications, data and privacy of key individuals and their closest confidants.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Aishield INCaishield.me HQ: Seattle, WA, United StatesReported employees: 1-10 | Seattle, WA, United States | 1-10 | Exact match | 3 contacts → |
“aiShield is dedicated to protecting seniors from the growing threat of cybercrime using advanced AI technology.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Kahu Groupkahu.group HQ: Seattle, WA, United StatesReported employees: 1-10 | Seattle, WA, United States | 1-10 | Exact match | 3 contacts → |
“We are a boutique cybersecurity firm dedicated to meticulous foundations, straightforward processes, and going beyond best practices.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Crystal Peak Securitycrystalpeaksecurity.com HQ: Seattle, WA, United StatesReported employees: 1-10 | Seattle, WA, United States | 1-10 | Exact match | 3 contacts → |
“A small, surgical team of security specialists with deep expertise in embedded systems, IoT, and connected hardware.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Cyberjabcyberjab.org HQ: Seattle, United StatesReported employees: 1-10 | Seattle, United States | 1-10 | Exact match | 3 contacts → |
“CyberJab is a veteran-owned cybersecurity company built by practitioners who've been in the fight.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 71 company matches
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Cybersecurity firms: dataset insights
October 1, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
71 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 71 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: October 1, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Cybersecurity firms by metro in the United States
- Cybersecurity firms in New York358
- Cybersecurity firms in Austin182
- Cybersecurity firms in San Francisco182
- Cybersecurity firms in Washington180
- Cybersecurity firms in Atlanta153
- Cybersecurity firms in Houston142
- Cybersecurity firms in Miami142
- Cybersecurity firms in Dallas134
- Cybersecurity firms in Chicago127
- Cybersecurity firms in Tampa116
- Cybersecurity firms in San Diego92
- Cybersecurity firms in Arlington90
- Cybersecurity firms in Boston87
- Cybersecurity firms in Los Angeles87
- Cybersecurity firms in Columbia77
- Cybersecurity firms in Denver77
- Cybersecurity firms in Las Vegas76
- Cybersecurity firms in Orlando75
- Cybersecurity firms in Reston69
- Cybersecurity firms in Charlotte67
- Cybersecurity firms in San Jose66
- Cybersecurity firms in San Antonio64
- Cybersecurity firms in Phoenix63
- Cybersecurity firms in Wilmington57
- Cybersecurity firms in Baltimore55
- Cybersecurity firms in Alexandria51
- Cybersecurity firms in Huntsville50
- Cybersecurity firms in Fairfax49
- Cybersecurity firms in Mclean49
- Cybersecurity firms in Sheridan48
- Cybersecurity firms in Portland43
- Cybersecurity firms in Dover42
- Cybersecurity firms in Raleigh42
- Cybersecurity firms in Ashburn41
- Cybersecurity firms in Colorado Springs40
- Cybersecurity firms in Herndon40
- Cybersecurity firms in Philadelphia40
- Cybersecurity firms in Fort Lauderdale39
- Cybersecurity firms in Pittsburgh39
- Cybersecurity firms in Plano38
- Cybersecurity firms in Scottsdale37
- Cybersecurity firms in Palo Alto35
- Cybersecurity firms in Minneapolis34
- Cybersecurity firms in Nashville32
- Cybersecurity firms in Indianapolis30
- Cybersecurity firms in Richmond30
- Cybersecurity firms in Vienna30
- Cybersecurity firms in Alpharetta29
- Cybersecurity firms in Irvine29
- Cybersecurity firms in Columbus28
- Cybersecurity firms in Salt Lake City28
- Cybersecurity firms in Santa Clara28
- Cybersecurity firms in Leesburg26
- Cybersecurity firms in Sunnyvale26
- Cybersecurity firms in Bethesda25
- Cybersecurity firms in St. Louis25
Questions about this company list
What does Exact match mean for cybersecurity firms?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many cybersecurity firms did RevenueBase find based in Seattle, United States?
The saved snapshot records 71 matching company records, 2,498 tracked contacts and 1,452 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: October 1, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Cybersecurity firms by geography
- Cybersecurity firms based in the United States
- Cybersecurity firms based in the United Kingdom
- Cybersecurity firms based in France
- Cybersecurity firms based in Canada
- Cybersecurity firms based in Brazil
- Cybersecurity firms based in Australia
- Cybersecurity firms based in Germany
- Cybersecurity firms based in Spain
- Cybersecurity firms based in the Netherlands
- Cybersecurity firms based in Italy
- Cybersecurity firms based in Israel
- Cybersecurity firms based in Mexico
Cite this list
RevenueBase Data Team. Top 25 cybersecurity firms based in Seattle, United States. Snapshot: October 1, 2026. https://revenuebase.ai/companies/cybersecurity-firms/united-states/seattle.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗