Company lists · Data refreshed September 2026

Top 19 Cybersecurity transformation services based in Seattle, United States

RevenueBase identified 45 company matches for cybersecurity transformation services associated with Seattle, United States as of September 2026 and tracks 1,100 professional contacts across them, including 623 with verified work emails. Across the United States, New York is the largest hub for this category (221 companies); Seattle has 45.

This list covers company matches for cybersecurity transformation services 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 28, 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.

How to read this list RevenueBase SmartSearch · Exact Recorded Sep 28, 2026 How this list was built
45Companies
1,100Contacts tracked
623Verified emails
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The 19 largest cybersecurity transformation services based in Seattle, United States

Ranked by team size
Top 19 of 45 company matches for cybersecurity transformation services based in Seattle, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 28, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchSeattle, WA, United StatesHQ recorded Sep 28, 2026501-1,000794 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 · Sep 28, 2026 · View company records in RevenueBase
2Exact matchSeattle, WA, United StatesHQ recorded Sep 28, 202651-200107 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 28, 2026 · View company records in RevenueBase
3Exact matchSeattle, WA, United StatesHQ recorded Sep 28, 202611-5036 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 28, 2026 · View company records in RevenueBase
4Exact matchSeattle, WA, United StatesHQ recorded Sep 28, 202611-5027 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 28, 2026 · View company records in RevenueBase
5Exact matchSeattle, WA, United StatesHQ recorded Sep 28, 202611-5020 contacts →

Exact match

“SWAT Systems is now Convergence Networks!”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
6Exact matchSeattle, WA, United StatesHQ recorded Sep 28, 20261-1015 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 28, 2026 · View company records in RevenueBase
7Exact matchSeattle, WA, United StatesHQ recorded Sep 28, 20261-1013 contacts →

Exact match

“PhishCloud's OT/IT Cyber Fusion Strategies unify industrial and enterprise cybersecurity into a centralized, operationally-aware capability.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
8Exact matchSeattle, WA, United StatesHQ recorded Sep 28, 20261-109 contacts →

Exact match

“DuPont Solutions | Trusted, Vendor-Neutral Partner for IT Leaders Empowering IT Directors to drive digital transformation with precision, speed, and strategic alignment.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
9Exact matchSeattle, WA, United StatesHQ recorded Sep 28, 202611-507 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 28, 2026 · View company records in RevenueBase
10Exact matchSeattle, WA, United StatesHQ recorded Sep 28, 20261-107 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 28, 2026 · View company records in RevenueBase
11Exact matchSeattle, United StatesHQ recorded Sep 28, 20261-104 contacts →

Exact match

“Trusted IT support, strategy, and cybersecurity for small businesses.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
12Exact matchSeattle, WA, United StatesHQ recorded Sep 28, 20261-103 contacts →

Exact match

“VCTO Secure empowers clients by Making I.T.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
13Exact matchSeattle, WA, United StatesHQ recorded Sep 28, 20261-102 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 28, 2026 · View company records in RevenueBase
14Exact matchSeattle, WA, United StatesHQ recorded Sep 28, 20261-102 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 28, 2026 · View company records in RevenueBase
15Exact matchSeattle, WA, United StatesHQ recorded Sep 28, 202611-501 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 28, 2026 · View company records in RevenueBase
16Exact matchSeattle, WA, United StatesHQ recorded Sep 28, 202611-501 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 28, 2026 · View company records in RevenueBase
17Exact matchSeattle, WA, United StatesHQ recorded Sep 28, 20261-101 contacts →

Exact match

“At Aorca, we deliver reliable, secure, and strategic IT services designed to help businesses thrive in an increasingly digital world.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
18Exact matchSeattle, WA, United StatesHQ recorded Sep 28, 20261-101 contacts →

Exact match

“Fretwork Security Advisors is a consultancy dedicated to delivering multi-disciplinary advisory services to clients in the executive suite.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
19Exact matchSeattle, WA, United StatesHQ recorded Sep 28, 20261-101 contacts →

Exact match

“DevSecFlow is at the forefront of enterprise-grade cybersecurity solutions, specializing in secure product and software development.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase

Showing 19 of 45 cybersecurity transformation services based in Seattle, United States

See the full list, filter by size, metro and specialty, and access 623 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Cybersecurity transformation services based in Seattle, United States at a glance

As of Sep 28, 2026
56.6%Verified-email coverage
24.4Average contacts per company
1-10Median size (employees)
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
28
11-50
12
51-200
4
501-1,000
1

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 45 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 transformation services” 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 623 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 28, 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 transformation services by metro in the United States

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 transformation services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many cybersecurity transformation services are there based in Seattle, United States?

RevenueBase identified 45 company matches for cybersecurity transformation services 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?

Absolute Security 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 transformation services?

New York leads the United States with 221 company records, followed by Houston (146) and Washington (139). Seattle has 45.

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 623 professional contacts with verified work emails tracked across these 45 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 28, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase 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.