Company lists · Data refreshed September 2026

Top 25 Cybersecurity contractors based in San Antonio, United States

Name: Cybersecurity contractors based in San Antonio, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 82 companies tracked

RevenueBase identified 82 cybersecurity contractors headquartered in San Antonio, United States as of September 2026 and tracks 1,896 professional contacts across them, including 451 with verified work emails. New York is the largest hub.

This list covers cybersecurity contractors 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 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

82Companies

1,896Contacts tracked

451Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest cybersecurity contractors based in San Antonio, United States

Ranked by team size

Top 25 of 82 cybersecurity contractors based in San Antonio, 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Computer Solutions	Partial evidence	San Antonio, TX, United StatesHQ checked Sep 21, 2026	51-200	389 contacts →
	Partial evidence “Computer Solutions: Trusted Managed IT Services and Cybersecurity Partner in San Antonio, Texas For more than 46 years, Computer Solutions has helped businesses, schools…” Source: RevenueBase Database · checked Sep 21, 2026
2	Vets Securing America	Indirect evidence	San Antonio, TX, United StatesHQ checked Sep 21, 2026	5,001-10,000	231 contacts →
	Indirect evidence “Full Service Security and Investigative company serving the government sector.” Source: RevenueBase Database · checked Sep 21, 2026
3	Silotech Group, INC	Indirect evidence	San Antonio, TX, United StatesHQ checked Sep 21, 2026	51-200	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 21, 2026
4	Kerberos International, INC	Indirect evidence	San Antonio, TX, United StatesHQ checked Sep 21, 2026	201-500	107 contacts →
	Indirect evidence “A Worldwide 8a, WOSB, ELECTROMAGNETIC WARFARE (EW) and Armed Protective Service COMPANY Kerberos International,(founded 2006) headquartered in Temple TX, with Division locations…” Source: RevenueBase Database · checked Sep 21, 2026
5	Eagle Integrated Services, LLC	Indirect evidence	San Antonio, TX, United StatesHQ checked Sep 21, 2026	51-200	105 contacts →
	Indirect evidence “Eagle Integrated Services, LLC is an SBA-certified 8(a) Small Disadvantaged Business and Alaska Native Corporation (ANC).” Source: RevenueBase Database · checked Sep 21, 2026
6	Ipsecure, INC	Indirect evidence	San Antonio, TX, United StatesHQ checked Sep 21, 2026	51-200	78 contacts →
	Indirect evidence “IPSecure provides Cyber Security Solutions to the Government and Commercial companies worldwide.” Source: RevenueBase Database · checked Sep 21, 2026
7	Sandtech Solutions	Indirect evidence	San Antonio, TX, United StatesHQ checked Sep 21, 2026	11-50	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 21, 2026
8	Def-Logix, INC	Indirect evidence	San Antonio, TX, United StatesHQ checked Sep 21, 2026	51-200	58 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 21, 2026
9	KSH Solutions, INC	Indirect evidence	San Antonio, TX, United StatesHQ checked Sep 21, 2026	201-500	58 contacts →
	Indirect evidence “A "Leading Provider" of Cyber Security and Engineering services and solutions to U.S.” Source: RevenueBase Database · checked Sep 21, 2026
10	Velonex Technologies	Partial evidence	San Antonio, TX, United StatesHQ checked Sep 21, 2026	51-200	55 contacts →
	Partial 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 21, 2026
11	Inflow	Indirect evidence	San Antonio, TX, United StatesHQ checked Sep 21, 2026	51-200	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 21, 2026
12	Digiss	Partial evidence	San Antonio, TX, United StatesHQ checked Sep 21, 2026	11-50	45 contacts →
	Partial evidence “Digital Information Security Solutions (DBA Digiss) is a San Antonio, Texas-based cybersecurity firm.” Source: RevenueBase Database · checked Sep 21, 2026
13	Defense Consulting Services, LLC	Indirect evidence	San Antonio, TX, United StatesHQ checked Sep 21, 2026	51-200	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 21, 2026
14	STAG	Indirect evidence	San Antonio, TX, United StatesHQ checked Sep 21, 2026	11-50	30 contacts →
	Indirect evidence “Strategic Technologies Analytics Group (STAG) is a premier solutions provider to the National Security and Defense communities around the world.” Source: RevenueBase Database · checked Sep 21, 2026
15	Nukudo	Partial evidence	San Antonio, TX, United StatesHQ checked Sep 21, 2026	11-50	25 contacts →
	Partial 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 21, 2026
16	7tech IT Services	Partial evidence	San Antonio, TX, United StatesHQ checked Sep 21, 2026	11-50	21 contacts →
	Partial 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 21, 2026
17	Taurean	Indirect evidence	San Antonio, TX, United StatesHQ checked Sep 21, 2026	11-50	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 21, 2026
18	Frontier Strategies, LLC	Indirect evidence	San Antonio, TX, United StatesHQ checked Sep 21, 2026	11-50	17 contacts →
	Indirect evidence “Frontier Strategies LLC is a trusted provider of mission-critical solutions for federal agencies, specializing in healthcare support services, information technology (IT)…” Source: RevenueBase Database · checked Sep 21, 2026
19	Cyfor Technologies LLC	Indirect evidence	San Antonio, TX, United StatesHQ checked Sep 21, 2026	11-50	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 21, 2026
20	Meritec Services, INC	Indirect evidence	San Antonio, TX, United StatesHQ checked Sep 21, 2026	11-50	15 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 21, 2026
21	Open Security, INC	Indirect evidence	San Antonio, TX, United StatesHQ checked Sep 21, 2026	11-50	14 contacts →
	Indirect evidence “Your business may be at risk of a cyber attack.” Source: RevenueBase Database · checked Sep 21, 2026
22	Tekgration	Partial evidence	San Antonio, TX, United StatesHQ checked Sep 21, 2026	1-10	10 contacts →
	Partial evidence “Tekgration LLC is a technology solutions provider of cutting-edge hardware, software and cybersecurity solutions.” Source: RevenueBase Database · checked Sep 21, 2026
23	Redknight	Indirect evidence	San Antonio, TX, United StatesHQ checked Sep 21, 2026	1-10	9 contacts →
	Indirect evidence “RedKnight provides IT engineering, architecture, and support services to the Department of Defense, State and Local government, and other commercial organizations.” Source: RevenueBase Database · checked Sep 21, 2026
24	Cyber Range Solutions INC	Indirect evidence	San Antonio, TX, United StatesHQ checked Sep 21, 2026	11-50	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 21, 2026
25	IRYS	Indirect evidence	San Antonio, United StatesHQ checked Sep 21, 2026	11-50	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 21, 2026

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 contractors. 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 contractors.
Partial evidence: Its own public description names part of cybersecurity contractors, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name cybersecurity contractors. 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 82 cybersecurity contractors based in San Antonio, United States

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 451 reachable decision-makers.

Free signup · no credit card

View the full list →

Cybersecurity contractors based in San Antonio, United States at a glance

As of Sep 21, 2026

23.8%Verified-email coverage

23.1Average contacts per company

11-50Median size (employees)

357.3%Largest-city concentration · New York

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

5,001-10,000

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 82 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 San Antonio, 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 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, 451 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 San Antonio, United States?

RevenueBase identified 82 cybersecurity contractors 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?

Computer Solutions, headquartered in San Antonio, 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 451 verified decision-maker contacts tracked across these 82 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.

Ready to reach these companies? Verified emails and direct dials for all 82 cybersecurity contractors based in San Antonio, United States. Start with a free account, no credit card.

Download this list →

Related lists

Cybersecurity contractors by geography

Browse the directory

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.