Company lists · Data refreshed September 2026

Top 14 Cybersecurity contractors based in Honolulu, United States

RevenueBase identified 26 cybersecurity contractors headquartered in Honolulu, United States as of September 2026 and tracks 247 professional contacts across them, including 108 with verified work emails. New York is the largest hub.

This list covers cybersecurity contractors headquartered in Honolulu, United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 21, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 21, 2026 86% judged on-target in blind review
26Companies
247Contacts tracked
108Verified emails
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The 14 largest cybersecurity contractors based in Honolulu, United States

Ranked by team size
Top 14 of 26 cybersecurity contractors based in Honolulu, United States, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to cybersecurity contractors: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceHonolulu, HI, United StatesHQ checked Sep 21, 202651-20059 contacts →

Partial evidence

“Referentia Systems Incorporated is a leading provider of mission-assured cybersecurity solutions.”

Source: RevenueBase Database · checked Sep 21, 2026
2Indirect evidenceHonolulu, HI, United StatesHQ checked Sep 21, 2026n/a40 contacts →

Indirect evidence

“As a high-end IT systems integrator to the Federal Government and Department of Defense (DOD), we deliver senior level engineering and subject-matter expertise in network, agile…”

Source: RevenueBase Database · checked Sep 21, 2026
3Indirect evidenceHonolulu, HI, United StatesHQ checked Sep 21, 202611-5031 contacts →

Indirect evidence

“Founded in 2013 by industry expert Tom Keener, Blackhawk Security has built a strong reputation as a trusted provider of advanced security solutions in Hawaii.”

Source: RevenueBase Database · checked Sep 21, 2026
4Indirect evidenceHonolulu, HI, United StatesHQ checked Sep 21, 20261-1017 contacts →

Indirect evidence

“GJB & Associates, a subsidiary of the Mana Ka ʻIke Bruce ʻOhana Foundation, brings over 50 years of expertise in Information Technology Project Services to small and medium-sized…”

Source: RevenueBase Database · checked Sep 21, 2026
5Indirect evidenceHonolulu, HI, United StatesHQ checked Sep 21, 20261-1015 contacts →

Indirect evidence

“With decades of experience building, supporting, and integrating systems, including more than 20 years of experience working with the Department of Defense and within the federal…”

Source: RevenueBase Database · checked Sep 21, 2026
6Partial evidenceHonolulu, HI, United StatesHQ checked Sep 21, 202611-5012 contacts →

Partial evidence

“Cyberuptive is a best-in-class cybersecurity firm and provider of outsourced managed security services.”

Source: RevenueBase Database · checked Sep 21, 2026
7Indirect evidenceHonolulu, HI, United StatesHQ checked Sep 21, 202611-5010 contacts →

Indirect evidence

“Have you heard on the news about data breaches, hackers, ransomware and criminals attacking computer networks?”

Source: RevenueBase Database · checked Sep 21, 2026
8Indirect evidenceHonolulu, HI, United StatesHQ checked Sep 21, 202611-509 contacts →

Indirect evidence

“Hawaii Tech Support was founded in 2004 with a simple goal – to be the kind of IT Partner that empowers Clients to be strong and resilient so that Hawaii and its residents can…”

Source: RevenueBase Database · checked Sep 21, 2026
9Indirect evidenceHonolulu, HI, United StatesHQ checked Sep 21, 20261-105 contacts →

Indirect evidence

“Founded in 2017, we are a Hawaii-based, FCL, woman owned consulting firm that offers 50+ years of Cyber and Program Management experience.”

Source: RevenueBase Database · checked Sep 21, 2026
10Indirect evidenceHonolulu, HI, United StatesHQ checked Sep 21, 2026201-5004 contacts →

Indirect evidence

“Kapu Solutions is a Native Hawaiian and Service-Disabled Veteran owned small business (8A Status Pending).”

Source: RevenueBase Database · checked Sep 21, 2026
11Partial evidenceHonolulu, HI, United StatesHQ checked Sep 21, 20261-104 contacts →

Partial evidence

“Optimize Your Cybersecurity Insurance with Cowabunga!”

Source: RevenueBase Database · checked Sep 21, 2026
12Indirect evidenceHonolulu, HI, United StatesHQ checked Sep 21, 20261-104 contacts →

Indirect evidence

“At Endpoint Armor, we take a security-first approach to protecting businesses from today’s most sophisticated cyber threats.”

Source: RevenueBase Database · checked Sep 21, 2026
13Indirect evidenceHonolulu, HI, United StatesHQ checked Sep 21, 20261-104 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 21, 2026
14Indirect evidenceHonolulu, HI, United StatesHQ checked Sep 21, 202611-501 contacts →

Indirect evidence

“Resurgo, LLC is a cyber engineering firm that deploys advanced cyber security and network defense technologies and solutions for government and industry using our PERCUSSUS TM…”

Source: RevenueBase Database · checked Sep 21, 2026

Showing 14 of 26 cybersecurity contractors based in Honolulu, United States

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Cybersecurity contractors based in Honolulu, United States at a glance

As of Sep 21, 2026
43.7%Verified-email coverage
9.5Average contacts per company
1-10Median size (employees)
1126.9%Largest-city concentration · New York
Sep 21, 2026Page data refreshed

Companies by employee count

1-10
14
11-50
9
51-200
1
201-500
2

Email recency for this list is measured across the whole United States list rather than for Honolulu, so it is reported there. Company counts and contact totals on this page are exact for Honolulu, over 26 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among cybersecurity contractors, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies
Companies headquartered in Honolulu, United States whose own description of what they do matches “cybersecurity contractors”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search
RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names cybersecurity contractors), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude
Companies whose own description does not clearly place them among cybersecurity contractors, and records with no verified work email. Companies headquartered outside Honolulu are excluded even when they keep an office there.
Match quality
In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
Ranking
Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification
Every listed company carries at least one verified work email, 108 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh
This page's figures were pulled from the company graph on September 21, 2026. Lists refresh periodically as the graph is re-checked.
Corrections
Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Cybersecurity contractors by metro in the United States

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names cybersecurity contractors, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many cybersecurity contractors are there based in Honolulu, United States?

RevenueBase identified 26 cybersecurity contractors headquartered in Honolulu, United States as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Referentia Systems, INC, headquartered in Honolulu, tops this list with the largest team on record.

Which city has the most cybersecurity contractors?

New York leads with 293 headquartered companies, followed by Washington (220) and Austin (170).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 108 verified decision-maker contacts tracked across these 26 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 21, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.