Company lists · Data refreshed September 2026
Top 25 Cybersecurity transformation services based in San Diego, United States
RevenueBase identified 71 cybersecurity transformation services headquartered in San Diego, United States as of September 2026 and tracks 771 professional contacts across them, including 244 with verified work emails. Across the United States, New York is the largest hub for this category (204 companies); San Diego has 71.
This list covers cybersecurity transformation services 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 28, 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.
The 25 largest cybersecurity transformation services based in San Diego, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 89 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 28, 2026Thanks. The Data Team will review it. | |||||
| 2 | 81 contacts → | ||||
Indirect evidence “Sentek Global is the firm of choice for spearheading and supporting government and commercial IT programs.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 3 | 70 contacts → | ||||
Partial evidence “The Marlin Alliance, Inc.(Marlin) delivers digital transformation and innovative technical solutions across military, government, and commercial sectors.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 4 | 49 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 28, 2026Thanks. The Data Team will review it. | |||||
| 5 | 40 contacts → | ||||
Partial evidence “Infracore is a best-in-class Cybersecurity and IT Support Services firm.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 6 | 40 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 28, 2026Thanks. The Data Team will review it. | |||||
| 7 | 39 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 28, 2026Thanks. The Data Team will review it. | |||||
| 8 | 37 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 28, 2026Thanks. The Data Team will review it. | |||||
| 9 | 27 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 28, 2026Thanks. The Data Team will review it. | |||||
| 10 | 23 contacts → | ||||
Indirect evidence “At ISC, we provide comprehensive IT solutions tailored to the diverse needs of modern businesses.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 11 | 22 contacts → | ||||
Indirect evidence “We are now serving IT needs in the greater Chicago area!” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 12 | 14 contacts → | ||||
Indirect evidence “Cyber Security Risk Management Taranet provides SME support to identify, mitigate, and manage cyber security risks.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 13 | 12 contacts → | ||||
Indirect evidence “INTEGRATED PLANET INC is an information technology and services company based out of 10755 SCRIPPS POWAY PKWY, SAN DIEGO, California, United States.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 14 | 9 contacts → | ||||
Partial evidence “TBDCyber is a cybersecurity company focused on strategy, assessments, and program build services.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 15 | 7 contacts → | ||||
Partial evidence “Network Titan provides Managed and Co-Managed IT Support and Cybersecurity Services delivering expert, rapid response complete IT Support, Networking, Server, Cloud Solutions…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 16 | 6 contacts → | ||||
Indirect evidence “At Dispatch Tech, we're dedicated to securing your digital world.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 17 | 6 contacts → | ||||
Indirect evidence “HannulaWells is a cyber security services provider, servicing enterprise level environments to SMB's.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 18 | 6 contacts → | ||||
Indirect evidence “Our Vision Nexify helps clients achieve operational efficiency, data security, and strategic tech integration, focusing on Artificial Intelligence, Data Governance, and…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 19 | 6 contacts → | ||||
Indirect evidence “AEGIS INNOVATORS is a Microsoft partner located in Southern California that partners with other Microsoft service providers and assists organizations throughout the United States.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 20 | 5 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 21 | 3 contacts → | ||||
Indirect evidence “IT SECURITY ASSESSMENTS One of our goals is to empower businesses defend their critical data and sensitive information assets from the threat of cyber attacks.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 22 | 3 contacts → | ||||
Partial evidence “Worksters is a San Diego–based small business focused on cybersecurity, IT modernization, and encryption hardware.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 23 | 3 contacts → | ||||
Indirect evidence “Founded in 2013 on the IDEA to provide Basic Foundational IT Solutions and Support with an Excellent Customer Experience.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 24 | 2 contacts → | ||||
Indirect evidence “Providing IT / security and consulting services to medium sized business” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 25 | 2 contacts → | ||||
Indirect evidence “Cyclic Security Solutions (CS2) is a leading provider of Cyber Security Engineering, Program Management and Systems Integration by providing technical services and solutions.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: cybersecurity transformation services. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names cybersecurity transformation services.
- Partial evidence
- Its own public description names part of cybersecurity transformation services, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name cybersecurity transformation services. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 71 cybersecurity transformation services based in San Diego, United States
See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 244 reachable decision-makers.
Free signup · no credit card
Cybersecurity transformation services based in San Diego, United States at a glance
As of Sep 28, 2026Companies by employee count
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 71 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 transformation services, 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 transformation services”. 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 transformation services), 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 transformation services, 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, 244 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 28, 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 transformation services by metro in the United States
- Cybersecurity transformation services in New York204
- Cybersecurity transformation services in Houston146
- Cybersecurity transformation services in Washington139
- Cybersecurity transformation services in Dallas135
- Cybersecurity transformation services in Atlanta123
- Cybersecurity transformation services in Austin122
- Cybersecurity transformation services in Miami103
- Cybersecurity transformation services in Chicago101
- Cybersecurity transformation services in Tampa74
- Cybersecurity transformation services in Arlington72
- Cybersecurity transformation services in San Francisco72
- Cybersecurity transformation services in Reston68
- Cybersecurity transformation services in Columbia63
- Cybersecurity transformation services in Boston60
- Cybersecurity transformation services in San Antonio59
- Cybersecurity transformation services in Charlotte58
- Cybersecurity transformation services in Los Angeles56
- Cybersecurity transformation services in Mclean56
- Cybersecurity transformation services in Orlando55
- Cybersecurity transformation services in Alexandria53
- Cybersecurity transformation services in Denver52
- Cybersecurity transformation services in Herndon46
- Cybersecurity transformation services in Sheridan46
- Cybersecurity transformation services in Seattle45
- Cybersecurity transformation services in Ashburn43
- Cybersecurity transformation services in Las Vegas43
- Cybersecurity transformation services in Phoenix43
- Cybersecurity transformation services in Fairfax40
- Cybersecurity transformation services in Plano39
- Cybersecurity transformation services in Baltimore38
- Cybersecurity transformation services in Wilmington38
- Cybersecurity transformation services in Huntsville37
- Cybersecurity transformation services in Frisco34
- Cybersecurity transformation services in Raleigh34
- Cybersecurity transformation services in San Jose34
- Cybersecurity transformation services in Irvine31
- Cybersecurity transformation services in Columbus30
- Cybersecurity transformation services in Vienna30
- Cybersecurity transformation services in Alpharetta29
- Cybersecurity transformation services in Dover29
- Cybersecurity transformation services in Leesburg28
- Cybersecurity transformation services in Minneapolis28
- Cybersecurity transformation services in Nashville28
- Cybersecurity transformation services in Fort Lauderdale27
- Cybersecurity transformation services in Pittsburgh27
- Cybersecurity transformation services in Portland27
- Cybersecurity transformation services in Colorado Springs26
- Cybersecurity transformation services in Indianapolis26
- Cybersecurity transformation services in Rockville26
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 transformation services, 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 transformation services are there based in San Diego, United States?
RevenueBase identified 71 cybersecurity transformation services 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?
NTH Generation Computing, headquartered in San Diego, tops this list with the largest team on record.
Which city in the United States has the most cybersecurity transformation services?
New York leads the United States with 204 headquartered companies, followed by Houston (146) and Washington (139). San Diego has 71.
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 244 verified decision-maker contacts tracked across these 71 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 28, 2026.
Ready to reach these companies? Verified emails and direct dials for all 71 cybersecurity transformation services based in San Diego, United States. Start with a free account, no credit card.
Download this list →Related lists
Cybersecurity transformation services by geography
- Cybersecurity transformation services based in Adelaide, Australia
- Cybersecurity transformation services based in Brisbane, Australia
- Cybersecurity transformation services based in Canberra, Australia
- Cybersecurity transformation services based in Melbourne, Australia
- Cybersecurity transformation services based in Perth, Australia
- Cybersecurity transformation services based in Sydney, Australia
- Cybersecurity transformation services based in Dhaka, Bangladesh
- Cybersecurity transformation services based in Barueri, Brazil
- Cybersecurity transformation services based in Belo Horizonte, Brazil
- Cybersecurity transformation services based in Brasilia, Brazil
- Cybersecurity transformation services based in Curitiba, Brazil
- Cybersecurity transformation services based in Rio De Janeiro, Brazil
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.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Cybersecurity transformation services based in Adelaide, Australia
- Cybersecurity transformation services based in Brisbane, Australia
- Cybersecurity transformation services based in Canberra, Australia
- Cybersecurity transformation services based in Melbourne, Australia
- Cybersecurity transformation services based in Perth, Australia
- Cybersecurity transformation services based in Sydney, Australia