Company lists · Data refreshed September 2026
Top 25 IT security consulting companies based in Seattle, United States
RevenueBase identified 59 company matches for IT security consulting companies associated with Seattle, United States as of September 2026 and tracks 461 professional contacts across them, including 242 with verified work emails. Across the United States, New York is the largest hub for this category (201 companies); Seattle has 59.
This list covers company matches for IT security consulting companies 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 September 21, 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 IT security consulting companies based in Seattle, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 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 · Sep 21, 2026 · View company records in RevenueBase | |||||
| 2 | 39 contacts → | ||||
Exact match “Anvil is an information security consulting firm focused on top tier consulting.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 3 | 36 contacts → | ||||
Exact match “Kalles Group partners with CIOs, CISOs, and security leaders to strengthen security programs, reduce operational risk, and build resilience during periods of change.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 4 | 33 contacts → | ||||
Exact match “Advantage Partners is a security & compliance organization dedicated to helping emerging technology companies navigate the complexities of security and compliance.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 5 | 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 · Sep 21, 2026 · View company records in RevenueBase | |||||
| 6 | 24 contacts → | ||||
Exact match “Dynamic Computing helps companies and organizations in Seattle and across the Puget Sound region achieve their goals through technology.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 7 | 22 contacts → | ||||
Exact match “DSE is a boutique security firm with a focus on Active Directory.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 8 | 20 contacts → | ||||
Exact match “SWAT Systems is now Convergence Networks!” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 9 | 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 · Sep 21, 2026 · View company records in RevenueBase | |||||
| 10 | 15 contacts → | ||||
Exact match “Interplay IT is a trusted, Seattle-based IT partner specializing in Architecture, Engineering, Construction, and Mission-Driven Nonprofits.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 11 | 7 contacts → | ||||
Exact match “Forge Technology Advisors provides a customized suite of IT and Telecommunications consulting services-including Cybersecurity, SASE, UCaaS, CCaaS, and Networking-tailored to meet…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 12 | 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 · Sep 21, 2026 · View company records in RevenueBase | |||||
| 13 | 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 · Sep 21, 2026 · View company records in RevenueBase | |||||
| 14 | 5 contacts → | ||||
Exact match “Intelligent Technical Solutions is your trusted business partner for all your Cybersecurity, Managed and Co-managed IT support, Risk & Compliance, Data Analytics, and Consulting…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 15 | 4 contacts → | ||||
Exact match “Enetics Networks was founded in 1998 to provide smart, cost-effective technology solutions for businesses throughout Washington state.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 16 | 4 contacts → | ||||
Exact match “Trusted IT support, strategy, and cybersecurity for small businesses.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 17 | 3 contacts → | ||||
Exact match “We are an IT consulting team that partners with clients to elevate their IT security skills and knowledge in crafting, deploying, and supporting intelligent and leading-edge IP…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 18 | 3 contacts → | ||||
Exact match “At Positroniq, we help to protect organizations through assessment and advisory services designed to improve security, risk, and compliance programs and processes.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 19 | 3 contacts → | ||||
Exact match “VCTO Secure empowers clients by Making I.T.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 20 | 2 contacts → | ||||
Exact match “Zove Security secures the products and platforms that power innovation and underpin all our digital lives.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 21 | 2 contacts → | ||||
Exact match “Culper Partners offers strategic business consulting at the intersection of technology, national security, law enforcement, public policy and regulation.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 22 | 2 contacts → | ||||
Exact match “Section9Labs is a startup based in Seattle, WA.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 23 | 2 contacts → | ||||
Exact match “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…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 24 | 1 contacts → | ||||
Exact match “At Stepfar Technology Group, we are dedicated to empowering businesses with cutting-edge technology solutions.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 25 | 1 contacts → | ||||
Exact match “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.” Recorded in the RevenueBase company graph · Sep 21, 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 “IT security consulting companies”. 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 59 IT security consulting companies based in Seattle, United States
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IT security consulting companies based in Seattle, United States at a glance
As of Sep 21, 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 59 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 “IT security consulting companies” 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 242 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 September 21, 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.
IT security consulting companies by metro in the United States
- IT security consulting companies in New York201
- IT security consulting companies in Houston129
- IT security consulting companies in Atlanta127
- IT security consulting companies in Washington121
- IT security consulting companies in Dallas114
- IT security consulting companies in Austin110
- IT security consulting companies in Chicago101
- IT security consulting companies in Miami91
- IT security consulting companies in San Francisco84
- IT security consulting companies in Tampa82
- IT security consulting companies in San Diego71
- IT security consulting companies in Los Angeles69
- IT security consulting companies in Arlington62
- IT security consulting companies in Charlotte59
- IT security consulting companies in Denver59
- IT security consulting companies in Boston56
- IT security consulting companies in Phoenix54
- IT security consulting companies in San Antonio49
- IT security consulting companies in Alexandria47
- IT security consulting companies in Orlando46
- IT security consulting companies in Las Vegas45
- IT security consulting companies in Columbia42
- IT security consulting companies in Raleigh41
- IT security consulting companies in Reston40
- IT security consulting companies in Mclean38
- IT security consulting companies in Baltimore37
- IT security consulting companies in Ashburn35
- IT security consulting companies in Minneapolis35
- IT security consulting companies in Columbus34
- IT security consulting companies in Portland34
- IT security consulting companies in Fairfax33
- IT security consulting companies in San Jose32
- IT security consulting companies in Plano31
- IT security consulting companies in Richmond31
- IT security consulting companies in Huntsville30
- IT security consulting companies in Scottsdale30
- IT security consulting companies in Philadelphia29
- IT security consulting companies in Colorado Springs28
- IT security consulting companies in Nashville28
- IT security consulting companies in Pittsburgh28
- IT security consulting companies in Wilmington28
- IT security consulting companies in Indianapolis26
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 “IT security consulting companies”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many IT security consulting companies are there based in Seattle, United States?
RevenueBase identified 59 company matches for IT security consulting companies associated with Seattle, United States as of September 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?
Ioactive, INC 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 IT security consulting companies?
New York leads the United States with 201 company records, followed by Houston (129) and Atlanta (127). Seattle has 59.
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 242 professional contacts with verified work emails tracked across these 59 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 September 21, 2026.
Ready to reach these companies? Verified emails and direct dials for all 59 IT security consulting companies based in Seattle, United States. Start with a free account, no credit card.
Download this list →Related lists
IT security consulting companies by geography
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- IT security consulting companies based in Brasilia, Brazil
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- IT security consulting companies based in Porto Alegre, Brazil
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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.
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Company intelligence · public preview
Top 25 IT security consulting companies 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 59 matching company records for IT security consulting companies based in Seattle, United States, with 461 tracked contacts and 242 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: September 21, 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 IT security consulting companies 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 |  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 · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  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 · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Kalles Groupkallesgroup.comHQ: Seattle, WA, United StatesReported employees: 11-50 | Seattle, WA, United States | 11-50 | Exact match | 36 contacts → |
“Kalles Group partners with CIOs, CISOs, and security leaders to strengthen security programs, reduce operational risk, and build resilience during periods of change.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Advantage Partnersadvantage-partners.comHQ: Seattle, WA, United StatesReported employees: Not recorded | Seattle, WA, United States | Not recorded | Exact match | 33 contacts → |
“Advantage Partners is a security & compliance organization dedicated to helping emerging technology companies navigate the complexities of security and compliance.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  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 · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Dynamic Computingdynamiccomputing.comHQ: Seattle, WA, United StatesReported employees: 11-50 | Seattle, WA, United States | 11-50 | Exact match | 24 contacts → |
“Dynamic Computing helps companies and organizations in Seattle and across the Puget Sound region achieve their goals through technology.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  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 · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  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 · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  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 · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Interplayinterplayit.comHQ: Seattle, WA, United StatesReported employees: 1-10 | Seattle, WA, United States | 1-10 | Exact match | 15 contacts → |
“Interplay IT is a trusted, Seattle-based IT partner specializing in Architecture, Engineering, Construction, and Mission-Driven Nonprofits.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Forge Technology Advisorsforgeadvisors.ioHQ: Seattle, WA, United StatesReported employees: 11-50 | Seattle, WA, United States | 11-50 | Exact match | 7 contacts → |
“Forge Technology Advisors provides a customized suite of IT and Telecommunications consulting services-including Cybersecurity, SASE, UCaaS, CCaaS, and Networking-tailored to meet…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  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 · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  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 · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Digital Seattle, INCitsasap.comHQ: Seattle, WA, United StatesReported employees: 51-200 | Seattle, WA, United States | 51-200 | Exact match | 5 contacts → |
“Intelligent Technical Solutions is your trusted business partner for all your Cybersecurity, Managed and Co-managed IT support, Risk & Compliance, Data Analytics, and Consulting…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Enetics Networksenetics.netHQ: Seattle, WA, United StatesReported employees: 1-10 | Seattle, WA, United States | 1-10 | Exact match | 4 contacts → |
“Enetics Networks was founded in 1998 to provide smart, cost-effective technology solutions for businesses throughout Washington state.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  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 · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Differential Networksdifferentialnetworks.comHQ: Seattle, WA, United StatesReported employees: 1-10 | Seattle, WA, United States | 1-10 | Exact match | 3 contacts → |
“We are an IT consulting team that partners with clients to elevate their IT security skills and knowledge in crafting, deploying, and supporting intelligent and leading-edge IP…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Positroniq, LLCpositroniq.comHQ: Seattle, WA, United StatesReported employees: 1-10 | Seattle, WA, United States | 1-10 | Exact match | 3 contacts → |
“At Positroniq, we help to protect organizations through assessment and advisory services designed to improve security, risk, and compliance programs and processes.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Vcto Securevctosecure.comHQ: Seattle, WA, United StatesReported employees: 1-10 | Seattle, WA, United States | 1-10 | Exact match | 3 contacts → |
“VCTO Secure empowers clients by Making I.T.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  ZOVEzove.ioHQ: Seattle, WA, United StatesReported employees: 11-50 | Seattle, WA, United States | 11-50 | Exact match | 2 contacts → |
“Zove Security secures the products and platforms that power innovation and underpin all our digital lives.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Culper Partners LLCculperpartners.comHQ: Seattle, WA, United StatesReported employees: 1-10 | Seattle, WA, United States | 1-10 | Exact match | 2 contacts → |
“Culper Partners offers strategic business consulting at the intersection of technology, national security, law enforcement, public policy and regulation.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Section9labssection9labs.comHQ: Seattle, WA, United StatesReported employees: 1-10 | Seattle, WA, United States | 1-10 | Exact match | 2 contacts → |
“Section9Labs is a startup based in Seattle, WA.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Verification Labs, LLCverificationlabs.comHQ: Seattle, WA, United StatesReported employees: 1-10 | Seattle, WA, United States | 1-10 | Exact match | 2 contacts → |
“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…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Stepfar Technology Groupstepfar.comHQ: Seattle, WA, United StatesReported employees: 11-50 | Seattle, WA, United States | 11-50 | Exact match | 1 contacts → |
“At Stepfar Technology Group, we are dedicated to empowering businesses with cutting-edge technology solutions.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Seattlepro Enterprisesseattlepro.comHQ: Seattle, WA, United StatesReported employees: 11-50 | Seattle, WA, United States | 11-50 | Exact match | 1 contacts → |
“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.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 59 company matches
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IT security consulting companies: dataset insights
September 21, 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
59 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 59 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: September 21, 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 ↗
IT security consulting companies by metro in the United States
- IT security consulting companies in New York201
- IT security consulting companies in Houston129
- IT security consulting companies in Atlanta127
- IT security consulting companies in Washington121
- IT security consulting companies in Dallas114
- IT security consulting companies in Austin110
- IT security consulting companies in Chicago101
- IT security consulting companies in Miami91
- IT security consulting companies in San Francisco84
- IT security consulting companies in Tampa82
- IT security consulting companies in San Diego71
- IT security consulting companies in Los Angeles69
- IT security consulting companies in Arlington62
- IT security consulting companies in Charlotte59
- IT security consulting companies in Denver59
- IT security consulting companies in Boston56
- IT security consulting companies in Phoenix54
- IT security consulting companies in San Antonio49
- IT security consulting companies in Alexandria47
- IT security consulting companies in Orlando46
- IT security consulting companies in Las Vegas45
- IT security consulting companies in Columbia42
- IT security consulting companies in Raleigh41
- IT security consulting companies in Reston40
- IT security consulting companies in Mclean38
- IT security consulting companies in Baltimore37
- IT security consulting companies in Ashburn35
- IT security consulting companies in Minneapolis35
- IT security consulting companies in Columbus34
- IT security consulting companies in Portland34
- IT security consulting companies in Fairfax33
- IT security consulting companies in San Jose32
- IT security consulting companies in Plano31
- IT security consulting companies in Richmond31
- IT security consulting companies in Huntsville30
- IT security consulting companies in Scottsdale30
- IT security consulting companies in Philadelphia29
- IT security consulting companies in Colorado Springs28
- IT security consulting companies in Nashville28
- IT security consulting companies in Pittsburgh28
- IT security consulting companies in Wilmington28
- IT security consulting companies in Indianapolis26
Questions about this company list
What does Exact match mean for IT security consulting companies?
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 IT security consulting companies did RevenueBase find based in Seattle, United States?
The saved snapshot records 59 matching company records, 461 tracked contacts and 242 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: September 21, 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
IT security consulting companies by geography
- IT security consulting companies based in Adelaide, Australia
- IT security consulting companies based in Brisbane, Australia
- IT security consulting companies based in Canberra, Australia
- IT security consulting companies based in Melbourne, Australia
- IT security consulting companies based in Perth, Australia
- IT security consulting companies based in Sydney, Australia
- IT security consulting companies based in Barueri, Brazil
- IT security consulting companies based in Belo Horizonte, Brazil
- IT security consulting companies based in Brasilia, Brazil
- IT security consulting companies based in Curitiba, Brazil
- IT security consulting companies based in Porto Alegre, Brazil
- IT security consulting companies based in Rio De Janeiro, Brazil
Cite this list
RevenueBase Data Team. Top 25 IT security consulting companies based in Seattle, United States. Snapshot: September 21, 2026. https://revenuebase.ai/companies/it-security-consulting-companies/united-states/seattle.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- IT security consulting companies based in Adelaide, Australia
- IT security consulting companies based in Brisbane, Australia
- IT security consulting companies based in Canberra, Australia
- IT security consulting companies based in Melbourne, Australia
- IT security consulting companies based in Perth, Australia
- IT security consulting companies based in Sydney, Australia
Company intelligence · public preview
Top 25 IT security consulting companies based in Seattle, United States
RevenueBase records 59 matching company records for IT security consulting companies based in Seattle, United States, with 461 tracked contacts and 242 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: September 21, 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 IT security consulting companies 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 | 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 · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | 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 · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Kalles Groupkallesgroup.com HQ: Seattle, WA, United StatesReported employees: 11-50 | Seattle, WA, United States | 11-50 | Exact match | 36 contacts → |
“Kalles Group partners with CIOs, CISOs, and security leaders to strengthen security programs, reduce operational risk, and build resilience during periods of change.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Advantage Partnersadvantage-partners.com HQ: Seattle, WA, United StatesReported employees: Not recorded | Seattle, WA, United States | Not recorded | Exact match | 33 contacts → |
“Advantage Partners is a security & compliance organization dedicated to helping emerging technology companies navigate the complexities of security and compliance.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | 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 · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Dynamic Computingdynamiccomputing.com HQ: Seattle, WA, United StatesReported employees: 11-50 | Seattle, WA, United States | 11-50 | Exact match | 24 contacts → |
“Dynamic Computing helps companies and organizations in Seattle and across the Puget Sound region achieve their goals through technology.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | 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 · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | 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 · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | 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 · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Interplayinterplayit.com HQ: Seattle, WA, United StatesReported employees: 1-10 | Seattle, WA, United States | 1-10 | Exact match | 15 contacts → |
“Interplay IT is a trusted, Seattle-based IT partner specializing in Architecture, Engineering, Construction, and Mission-Driven Nonprofits.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Forge Technology Advisorsforgeadvisors.io HQ: Seattle, WA, United StatesReported employees: 11-50 | Seattle, WA, United States | 11-50 | Exact match | 7 contacts → |
“Forge Technology Advisors provides a customized suite of IT and Telecommunications consulting services-including Cybersecurity, SASE, UCaaS, CCaaS, and Networking-tailored to meet…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | 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 · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | 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 · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Digital Seattle, INCitsasap.com HQ: Seattle, WA, United StatesReported employees: 51-200 | Seattle, WA, United States | 51-200 | Exact match | 5 contacts → |
“Intelligent Technical Solutions is your trusted business partner for all your Cybersecurity, Managed and Co-managed IT support, Risk & Compliance, Data Analytics, and Consulting…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Enetics Networksenetics.net HQ: Seattle, WA, United StatesReported employees: 1-10 | Seattle, WA, United States | 1-10 | Exact match | 4 contacts → |
“Enetics Networks was founded in 1998 to provide smart, cost-effective technology solutions for businesses throughout Washington state.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | 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 · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Differential Networksdifferentialnetworks.com HQ: Seattle, WA, United StatesReported employees: 1-10 | Seattle, WA, United States | 1-10 | Exact match | 3 contacts → |
“We are an IT consulting team that partners with clients to elevate their IT security skills and knowledge in crafting, deploying, and supporting intelligent and leading-edge IP…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Positroniq, LLCpositroniq.com HQ: Seattle, WA, United StatesReported employees: 1-10 | Seattle, WA, United States | 1-10 | Exact match | 3 contacts → |
“At Positroniq, we help to protect organizations through assessment and advisory services designed to improve security, risk, and compliance programs and processes.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Vcto Securevctosecure.com HQ: Seattle, WA, United StatesReported employees: 1-10 | Seattle, WA, United States | 1-10 | Exact match | 3 contacts → |
“VCTO Secure empowers clients by Making I.T.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | ZOVEzove.io HQ: Seattle, WA, United StatesReported employees: 11-50 | Seattle, WA, United States | 11-50 | Exact match | 2 contacts → |
“Zove Security secures the products and platforms that power innovation and underpin all our digital lives.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Culper Partners LLCculperpartners.com HQ: Seattle, WA, United StatesReported employees: 1-10 | Seattle, WA, United States | 1-10 | Exact match | 2 contacts → |
“Culper Partners offers strategic business consulting at the intersection of technology, national security, law enforcement, public policy and regulation.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Section9labssection9labs.com HQ: Seattle, WA, United StatesReported employees: 1-10 | Seattle, WA, United States | 1-10 | Exact match | 2 contacts → |
“Section9Labs is a startup based in Seattle, WA.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Verification Labs, LLCverificationlabs.com HQ: Seattle, WA, United StatesReported employees: 1-10 | Seattle, WA, United States | 1-10 | Exact match | 2 contacts → |
“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…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Stepfar Technology Groupstepfar.com HQ: Seattle, WA, United StatesReported employees: 11-50 | Seattle, WA, United States | 11-50 | Exact match | 1 contacts → |
“At Stepfar Technology Group, we are dedicated to empowering businesses with cutting-edge technology solutions.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Seattlepro Enterprisesseattlepro.com HQ: Seattle, WA, United StatesReported employees: 11-50 | Seattle, WA, United States | 11-50 | Exact match | 1 contacts → |
“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.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 59 company matches
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IT security consulting companies: dataset insights
September 21, 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
59 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 59 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: September 21, 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 ↗
IT security consulting companies by metro in the United States
- IT security consulting companies in New York201
- IT security consulting companies in Houston129
- IT security consulting companies in Atlanta127
- IT security consulting companies in Washington121
- IT security consulting companies in Dallas114
- IT security consulting companies in Austin110
- IT security consulting companies in Chicago101
- IT security consulting companies in Miami91
- IT security consulting companies in San Francisco84
- IT security consulting companies in Tampa82
- IT security consulting companies in San Diego71
- IT security consulting companies in Los Angeles69
- IT security consulting companies in Arlington62
- IT security consulting companies in Charlotte59
- IT security consulting companies in Denver59
- IT security consulting companies in Boston56
- IT security consulting companies in Phoenix54
- IT security consulting companies in San Antonio49
- IT security consulting companies in Alexandria47
- IT security consulting companies in Orlando46
- IT security consulting companies in Las Vegas45
- IT security consulting companies in Columbia42
- IT security consulting companies in Raleigh41
- IT security consulting companies in Reston40
- IT security consulting companies in Mclean38
- IT security consulting companies in Baltimore37
- IT security consulting companies in Ashburn35
- IT security consulting companies in Minneapolis35
- IT security consulting companies in Columbus34
- IT security consulting companies in Portland34
- IT security consulting companies in Fairfax33
- IT security consulting companies in San Jose32
- IT security consulting companies in Plano31
- IT security consulting companies in Richmond31
- IT security consulting companies in Huntsville30
- IT security consulting companies in Scottsdale30
- IT security consulting companies in Philadelphia29
- IT security consulting companies in Colorado Springs28
- IT security consulting companies in Nashville28
- IT security consulting companies in Pittsburgh28
- IT security consulting companies in Wilmington28
- IT security consulting companies in Indianapolis26
Questions about this company list
What does Exact match mean for IT security consulting companies?
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 IT security consulting companies did RevenueBase find based in Seattle, United States?
The saved snapshot records 59 matching company records, 461 tracked contacts and 242 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: September 21, 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
IT security consulting companies by geography
- IT security consulting companies based in Adelaide, Australia
- IT security consulting companies based in Brisbane, Australia
- IT security consulting companies based in Canberra, Australia
- IT security consulting companies based in Melbourne, Australia
- IT security consulting companies based in Perth, Australia
- IT security consulting companies based in Sydney, Australia
- IT security consulting companies based in Barueri, Brazil
- IT security consulting companies based in Belo Horizonte, Brazil
- IT security consulting companies based in Brasilia, Brazil
- IT security consulting companies based in Curitiba, Brazil
- IT security consulting companies based in Porto Alegre, Brazil
- IT security consulting companies based in Rio De Janeiro, Brazil
Cite this list
RevenueBase Data Team. Top 25 IT security consulting companies based in Seattle, United States. Snapshot: September 21, 2026. https://revenuebase.ai/companies/it-security-consulting-companies/united-states/seattle.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- IT security consulting companies based in Adelaide, Australia
- IT security consulting companies based in Brisbane, Australia
- IT security consulting companies based in Canberra, Australia
- IT security consulting companies based in Melbourne, Australia
- IT security consulting companies based in Perth, Australia
- IT security consulting companies based in Sydney, Australia