Company lists · Data refreshed September 2026
Top 25 Cybersecurity firms based in San Antonio, United States
RevenueBase identified 64 cybersecurity firms headquartered in San Antonio, United States as of September 2026 and tracks 1,023 professional contacts across them, including 331 with verified work emails. New York is the largest hub.
This list covers cybersecurity firms headquartered in San Antonio, 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 14, 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 firms based in San Antonio, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 134 contacts → | ||||
Indirect evidence “Silotech Group emerged in 2008, as a valued leader in the consulting space, with over 50 years of accumulative expertise in Advanced Cyber Technologies, Systems Engineering…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 2 | 78 contacts → | ||||
Indirect evidence “IPSecure provides Cyber Security Solutions to the Government and Commercial companies worldwide.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 3 | 58 contacts → | ||||
Indirect evidence “SandTech Solutions is a Certified 8a member as well as a Service Disabled Veteran-Owned Small Business (SDVOSB).” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 4 | 58 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 5 | 58 contacts → | ||||
Indirect evidence “A "Leading Provider" of Cyber Security and Engineering services and solutions to U.S.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 6 | 55 contacts → | ||||
Indirect evidence “CyberFortress is the only platform that covers every phase of cyber resilience, from stopping threats before they land to standing next to you during a full-blown recovery.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 7 | 55 contacts → | ||||
Strong evidence “At Velonex Technologies, we are your trusted Managed Service Provider (MSP), offering IT and cybersecurity solutions and services tailored for your business.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 8 | 46 contacts → | ||||
Indirect evidence “Inflowlogistics LLC (DBA Inflow), is a national security firm providing a wide range of expertise and service offerings to the U.S.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 9 | 45 contacts → | ||||
Strong evidence “Digital Information Security Solutions (DBA Digiss) is a San Antonio, Texas-based cybersecurity firm.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 10 | 39 contacts → | ||||
Indirect evidence “Defense Consulting Services LLC (DCS) is a service-disabled veteran-owned firm (SBA-certified 8(a), SDVOSB, SB, SDB, VOSB) headquartered in San Antonio, Texas.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 11 | 25 contacts → | ||||
Strong evidence “Here at nuKudo, we equip the next generation of cybersecurity professionals through immersive, hands-on training and industry-recognized certifications.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 12 | 21 contacts → | ||||
Strong evidence “7tech is an outsourced Managed IT Services and Cybersecurity Provider that specializes in helping mid-sized Texas businesses with or without internal IT departments protect their…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 13 | 19 contacts → | ||||
Indirect evidence “Taurean helps organizations prevent loss and avoid damaged reputation by securing their most important asset – information.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 14 | 15 contacts → | ||||
Indirect evidence “CYFOR TECHNOLOGIES LLC is an engineering services company based out of San Antonio, Texas providing support to DOD, NASA and the DOT.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 15 | 14 contacts → | ||||
Indirect evidence “Your business may be at risk of a cyber attack.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 16 | 10 contacts → | ||||
Strong evidence “Tekgration LLC is a technology solutions provider of cutting-edge hardware, software and cybersecurity solutions.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 17 | 8 contacts → | ||||
Indirect evidence “CRS provides cyber security training and improve security team performance by providing a hyper realistic, virtual training environment, advance training tools and simulated…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 18 | 8 contacts → | ||||
Indirect evidence “Irys is a San Antonio-based technology company specializing in innovative solutions for the U.S.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 19 | 8 contacts → | ||||
Indirect evidence “Serving clients across numerous industries from small businesses to very large enterprises, Digital Defense’s innovative and leading-edge technology helps organizations safeguard…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 20 | 7 contacts → | ||||
Strong evidence “Solid Border is a Cybersecurity Boutique.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 21 | 5 contacts → | ||||
Indirect evidence “M20 Associates LLC, a Service Disabled Veteran Owned Small Business (SDVOSB), provides information technology, cyber security and intelligence support services to organizations…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 22 | 5 contacts → | ||||
Strong evidence “VenariX is a cybersecurity company built around a clear purpose: helping organizations understand cyber risk in plain business terms.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 23 | 4 contacts → | ||||
Strong evidence “At Cyber Warrior Network, we merge the thrill of gaming with the rigors of cybersecurity training, preparing the next generation of cyber warriors for real-world challenges.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 24 | 4 contacts → | ||||
Indirect evidence “Namauu Technological & Industrial (NTI) is an SBA Super 8(a) and HUBZone certified firm that specializes in utilizing its proprietary developed Cyberspace Service Management℠…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 25 | 3 contacts → | ||||
Strong evidence “CyberOnyx Security | 🪖 Veteran-Owned Cybersecurity Partner for Small and Medium Businesses At CyberOnyx Security, we specialize in delivering personalized, proactive, and…” Source: RevenueBase Database · checked Sep 14, 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 firms. 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 firms.
- Partial evidence
- Its own public description names part of cybersecurity firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name cybersecurity firms. 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 64 cybersecurity firms based in San Antonio, United States
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Cybersecurity firms based in San Antonio, United States at a glance
As of Sep 14, 2026Companies by employee count
Email recency for this list is measured across the whole United States list rather than for San Antonio, so it is reported there. Company counts and contact totals on this page are exact for San Antonio, over 64 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 firms, 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 Antonio, United States whose own description of what they do matches “cybersecurity firms”. 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 firms), 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 firms, and records with no verified work email. Companies headquartered outside San Antonio 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, 331 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 14, 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 firms by metro in the United States
- Cybersecurity firms in New York332
- Cybersecurity firms in Austin182
- Cybersecurity firms in San Francisco182
- Cybersecurity firms in Washington180
- Cybersecurity firms in Atlanta153
- Cybersecurity firms in Houston142
- Cybersecurity firms in Miami142
- Cybersecurity firms in Dallas134
- Cybersecurity firms in Chicago127
- Cybersecurity firms in Tampa116
- Cybersecurity firms in San Diego92
- Cybersecurity firms in Arlington90
- Cybersecurity firms in Boston87
- Cybersecurity firms in Los Angeles87
- Cybersecurity firms in Columbia77
- Cybersecurity firms in Denver77
- Cybersecurity firms in Las Vegas76
- Cybersecurity firms in Orlando75
- Cybersecurity firms in Seattle71
- Cybersecurity firms in Reston69
- Cybersecurity firms in Charlotte67
- Cybersecurity firms in San Jose66
- Cybersecurity firms in San Antonio64
- Cybersecurity firms in Phoenix63
- Cybersecurity firms in Wilmington57
- Cybersecurity firms in Baltimore55
- Cybersecurity firms in Alexandria51
- Cybersecurity firms in Huntsville50
- Cybersecurity firms in Fairfax49
- Cybersecurity firms in Mclean49
- Cybersecurity firms in Sheridan48
- Cybersecurity firms in Portland43
- Cybersecurity firms in Dover42
- Cybersecurity firms in Raleigh42
- Cybersecurity firms in Ashburn41
- Cybersecurity firms in Colorado Springs40
- Cybersecurity firms in Herndon40
- Cybersecurity firms in Philadelphia40
- Cybersecurity firms in Fort Lauderdale39
- Cybersecurity firms in Pittsburgh39
- Cybersecurity firms in Plano38
- Cybersecurity firms in Scottsdale37
- Cybersecurity firms in Palo Alto35
- Cybersecurity firms in Minneapolis34
- Cybersecurity firms in Nashville32
- Cybersecurity firms in Indianapolis30
- Cybersecurity firms in Richmond30
- Cybersecurity firms in Vienna30
- Cybersecurity firms in Alpharetta29
- Cybersecurity firms in Irvine29
- Cybersecurity firms in Columbus28
- Cybersecurity firms in Salt Lake City28
- Cybersecurity firms in Santa Clara28
- Cybersecurity firms in Leesburg26
- Cybersecurity firms in Sunnyvale26
- Cybersecurity firms in Albuquerque25
- Cybersecurity firms in Bethesda25
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 firms, 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 firms are there based in San Antonio, United States?
RevenueBase identified 64 cybersecurity firms headquartered in San Antonio, 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?
Silotech Group, INC, headquartered in San Antonio, tops this list with the largest team on record.
Which city has the most cybersecurity firms?
New York leads with 332 headquartered companies, followed by Austin (182) and San Francisco (182).
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 331 verified decision-maker contacts tracked across these 64 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 14, 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.