Company lists · Data refreshed September 2026

Top 25 Cybersecurity integrators based in San Diego, United States

RevenueBase identified 192 cybersecurity integrators headquartered in San Diego, United States as of September 2026 and tracks 3,790 professional contacts across them, including 1,022 with verified work emails. Across the United States, New York is the largest hub for this category (514 companies); San Diego has 192.

This list covers cybersecurity integrators headquartered in San Diego, 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 29, 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 29, 2026 86% judged on-target in blind review
192Companies
3,790Contacts tracked
1,022Verified emails
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The 25 largest cybersecurity integrators based in San Diego, United States

Ranked by team size
Top 25 of 192 cybersecurity integrators based in San Diego, United States, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to cybersecurity integrators: 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
1Indirect evidenceSan Diego, CA, United StatesHQ checked Sep 29, 20265,001-10,000463 contacts →

Indirect evidence

“Cubic Defense provides capabilities that include adaptive and resilient real-time connectivity, rapid and secure data access, converged intelligent data, and Live Virtual…”

Source: RevenueBase Database · checked Sep 29, 2026
2Indirect evidenceSan Diego, CA, United StatesHQ checked Sep 29, 2026201-500455 contacts →

Indirect evidence

“Our Mission: TIG will earn its place as a trusted partner to our clients, providing only the highest level of service, value and advanced technology to power their strategic…”

Source: RevenueBase Database · checked Sep 29, 2026
3Indirect evidenceSan Diego, CA, United StatesHQ checked Sep 29, 2026501-1,000402 contacts →

Indirect evidence

“Inspired Employees.”

Source: RevenueBase Database · checked Sep 29, 2026
4Partial evidenceSan Diego, CA, United StatesHQ checked Sep 29, 202651-200148 contacts →

Partial evidence

“AUSGAR is a company of smart, innovative technical team members who can out-think problems faced by our customers in the cybersecurity, experimentation and engineering services…”

Source: RevenueBase Database · checked Sep 29, 2026
5Indirect evidenceSan Diego, CA, United StatesHQ checked Sep 29, 2026201-500135 contacts →

Indirect evidence

“At TechFlow, we relish solving the difficult problems, making an impact, and exceeding customer expectations.”

Source: RevenueBase Database · checked Sep 29, 2026
6Indirect evidenceSan Diego, United StatesHQ checked Sep 29, 202651-200121 contacts →

Indirect evidence

“Epsilon C5I, Inc.”

Source: RevenueBase Database · checked Sep 29, 2026
7Indirect evidenceSan Diego, CA, United StatesHQ checked Sep 29, 202651-200108 contacts →

Indirect evidence

“SOLUTE, a Sigma defense company, is headquartered in San Diego, California with a presence in many major military areas.”

Source: RevenueBase Database · checked Sep 29, 2026
8Indirect evidenceSan Diego, CA, United StatesHQ checked Sep 29, 202651-200108 contacts →

Indirect evidence

“Forward Slope is now part of Lyntris.”

Source: RevenueBase Database · checked Sep 29, 2026
9Indirect evidenceSan Diego, CA, United StatesHQ checked Sep 29, 202651-20089 contacts →

Indirect evidence

“Since 1991, Nth Generation has provided industry leading, consultative IT services, encompassing a suite of IT and security solutions.”

Source: RevenueBase Database · checked Sep 29, 2026
10Indirect evidenceSan Diego, CA, United StatesHQ checked Sep 29, 202651-20089 contacts →

Indirect evidence

“We believe our country’s soldiers, sailors, airmen, and marines deserve to be equipped with systems that enhance their competitive advantage against threats and meet rigorous…”

Source: RevenueBase Database · checked Sep 29, 2026
11Indirect evidenceSan Diego, CA, United StatesHQ checked Sep 29, 202651-20081 contacts →

Indirect evidence

“Sentek Global is the firm of choice for spearheading and supporting government and commercial IT programs.”

Source: RevenueBase Database · checked Sep 29, 2026
12Indirect evidenceSan Diego, CA, United StatesHQ checked Sep 29, 202611-5056 contacts →

Indirect evidence

“Your organization requires IT to help it drive innovation, profitability, and security.”

Source: RevenueBase Database · checked Sep 29, 2026
13Indirect evidenceSan Diego, CA, United StatesHQ checked Sep 29, 202611-5055 contacts →

Indirect evidence

“In business since 1984, Blue Tech is an IT solutions company dedicated to being responsive and thorough, upholding the highest standards of integrity in our relationships with…”

Source: RevenueBase Database · checked Sep 29, 2026
14Indirect evidenceSan Diego, CA, United StatesHQ checked Sep 29, 202651-20049 contacts →

Indirect evidence

“Templar Shield is a specialized risk, security, identity and AI governance advisory firm helping organizations operate with confidence in an increasingly automated, AI-driven…”

Source: RevenueBase Database · checked Sep 29, 2026
15Indirect evidenceSan Diego, CA, United StatesHQ checked Sep 29, 202611-5046 contacts →

Indirect evidence

“Cyth Systems has over two decades of providing the technology and expertise you need to be successful on Automation, Measurement, and Controls projects.”

Source: RevenueBase Database · checked Sep 29, 2026
16Partial evidenceSan Diego, CA, United StatesHQ checked Sep 29, 202611-5046 contacts →

Partial evidence

“Providing the Most Innovative and Intelligent Defense Available With the growth and evolution of cyber threats, cybersecurity has been thrust into the forefront of modern…”

Source: RevenueBase Database · checked Sep 29, 2026
17Partial evidenceSan Diego, CA, United StatesHQ checked Sep 29, 202651-20040 contacts →

Partial evidence

“Infracore is a best-in-class Cybersecurity and IT Support Services firm.”

Source: RevenueBase Database · checked Sep 29, 2026
18Indirect evidenceSan Diego, CA, United StatesHQ checked Sep 29, 202611-5040 contacts →

Indirect evidence

“Commissioned in 2010 to deliver quality project management support services, business information technology and C5I Systems Engineering solutions.”

Source: RevenueBase Database · checked Sep 29, 2026
19Indirect evidenceSan Diego, CA, United StatesHQ checked Sep 29, 202651-20040 contacts →

Indirect evidence

“Six Maritime is a service disabled, veteran-owned maritime security and training company specializing in advanced waterfront protection, autonomous systems integration, and…”

Source: RevenueBase Database · checked Sep 29, 2026
20Indirect evidenceSan Diego, CA, United StatesHQ checked Sep 29, 202611-5039 contacts →

Indirect evidence

“Our Mission To empower organizations with secure, compliant, and modern IT solutions that reduce risk, accelerate growth, and enable lasting innovation.”

Source: RevenueBase Database · checked Sep 29, 2026
21Indirect evidenceSan Diego, CA, United StatesHQ checked Sep 29, 202651-20037 contacts →

Indirect evidence

“X-Feds is a Small Business headquartered in San Diego, CA with satellite offices located in Norfolk, Virginia; Charleston, South Carolina; Crane, Indiana and Washington, DC.”

Source: RevenueBase Database · checked Sep 29, 2026
22Partial evidenceSan Diego, CA, United StatesHQ checked Sep 29, 202611-5033 contacts →

Partial evidence

“California Commercial Security (CCS) is a leading regional security systems integrator focused exclusively on delivering exceptional value to commercial clients.”

Source: RevenueBase Database · checked Sep 29, 2026
23Partial evidenceSan Diego, CA, United StatesHQ checked Sep 29, 202611-5027 contacts →

Partial evidence

“Founded in 2018, TrustThink provides cybersecurity engineering and system-of-systems assurance for complex, connected products and platforms.”

Source: RevenueBase Database · checked Sep 29, 2026
24Indirect evidenceSan Diego, CA, United StatesHQ checked Sep 29, 202611-5023 contacts →

Indirect evidence

“At ISC, we provide comprehensive IT solutions tailored to the diverse needs of modern businesses.”

Source: RevenueBase Database · checked Sep 29, 2026
25Indirect evidenceSan Diego, CA, United StatesHQ checked Sep 29, 202611-5022 contacts →

Indirect evidence

“We are now serving IT needs in the greater Chicago area!”

Source: RevenueBase Database · checked Sep 29, 2026

Showing 25 of 192 cybersecurity integrators based in San Diego, United States

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Cybersecurity integrators based in San Diego, United States at a glance

As of Sep 29, 2026
27.0%Verified-email coverage
19.7Average contacts per company
1-10Median size (employees)
Sep 29, 2026Page data refreshed

Companies by employee count

1-10
110
11-50
58
51-200
17
201-500
4
501-1,000
2
5,001-10,000
1

Email recency for this list is measured across the whole United States list rather than for San Diego, so it is reported there. Company counts and contact totals on this page are exact for San Diego, over 192 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 integrators, 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 San Diego, United States whose own description of what they do matches “cybersecurity integrators”. 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 integrators), 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 integrators, and records with no verified work email. Companies headquartered outside San Diego 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, 1,022 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 29, 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 integrators 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 integrators, 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 integrators are there based in San Diego, United States?

RevenueBase identified 192 cybersecurity integrators headquartered in San Diego, 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?

Cubic Defense, headquartered in San Diego, tops this list with the largest team on record.

Which city in the United States has the most cybersecurity integrators?

New York leads the United States with 514 headquartered companies, followed by Houston (316) and Washington (289). San Diego has 192.

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 1,022 verified decision-maker contacts tracked across these 192 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 29, 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.