Company lists · Data refreshed September 2026

Top 23 IT security consulting firms based in San Antonio, United States

Name: IT security consulting firms 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 4, 2026 59 companies tracked

RevenueBase identified 59 IT security consulting firms headquartered in San Antonio, United States as of September 2026 and tracks 1,099 professional contacts across them, including 458 with verified work emails. New York is the largest hub.

This list covers IT security consulting 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, how directly it supports the match, and when it was last checked. Data refreshed September 4, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 Match evidence on every row Refreshed Sep 4, 2026 86% judged on-target in blind review

59Companies

1,099Contacts tracked

458Verified emails

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The 23 largest IT security consulting firms based in San Antonio, United States

Ranked by team size

Top 23 of 59 IT security consulting firms based in San Antonio, United States, ranked by team size, largest first. Data refreshed Sep 4, 2026. Evidence rates how directly each company's own description names IT security consulting firms: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#	Company	Headquarters	Employees	Contacts
1	Silotech Group, INCPartial evidence	San Antonio, TX, United StatesHQ checked Sep 4, 2026	51-200	134
	“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: company website · checked Sep 4, 2026
2	Ipsecure, INCPartial evidence	San Antonio, TX, United StatesHQ checked Sep 4, 2026	51-200	80
	“IPSecure provides Cyber Security Solutions to the Government and Commercial companies worldwide.” Source: company website · checked Sep 4, 2026
3	Sandtech SolutionsIndirect evidence	San Antonio, TX, United StatesHQ checked Sep 4, 2026	11-50	63
	“SandTech Solutions is a Certified 8a member as well as a Service Disabled Veteran-Owned Small Business (SDVOSB).” Source: company website · checked Sep 4, 2026
4	Def-Logix, INCIndirect evidence	San Antonio, TX, United StatesHQ checked Sep 4, 2026	51-200	56
	Source: company website · checked Sep 4, 2026
5	AltregyStrong evidence	San Antonio, TX, United StatesHQ checked Sep 4, 2026	11-50	47
	“Altregy Consulting is a firm specialized in Business and IT Strategy, Process Optimization, IT Security, GRC (Governance, Risk and Compliance) and Staff Augmentation Services.” Source: company website · checked Sep 4, 2026
6	DigissPartial evidence	San Antonio, TX, United StatesHQ checked Sep 4, 2026	11-50	42
	“Digital Information Security Solutions (DBA Digiss) is a San Antonio, Texas-based cybersecurity firm.” Source: company website · checked Sep 4, 2026
7	SecuretechPartial evidence	San Antonio, TX, United StatesHQ checked Sep 4, 2026	11-50	25
	“For over 20 years, SecureTech has been the trusted IT partner for small and mid-sized businesses across San Antonio and the surrounding Texas region.” Source: company website · checked Sep 4, 2026
8	Valiant-X Enterprise CorporationIndirect evidence	San Antonio, TX, United StatesHQ checked Sep 4, 2026	11-50	24
	“Valiant-X Enterprise provides highly-technical Professional Services within the Federal & Commercial Markets.” Source: company website · checked Sep 4, 2026
9	7tech IT ServicesPartial evidence	San Antonio, TX, United StatesHQ checked Sep 4, 2026	11-50	20
	“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: company website · checked Sep 4, 2026
10	TaureanPartial evidence	San Antonio, TX, United StatesHQ checked Sep 4, 2026	11-50	19
	“Taurean helps organizations prevent loss and avoid damaged reputation by securing their most important asset – information.” Source: company website · checked Sep 4, 2026
11	Cyfor Technologies LLCIndirect evidence	San Antonio, TX, United StatesHQ checked Sep 4, 2026	11-50	15
	“CYFOR TECHNOLOGIES LLC is an engineering services company based out of San Antonio, Texas providing support to DOD, NASA and the DOT.” Source: company website · checked Sep 4, 2026
12	Open Security, INCIndirect evidence	San Antonio, TX, United StatesHQ checked Sep 4, 2026	11-50	13
	“Your business may be at risk of a cyber attack.” Source: company website · checked Sep 4, 2026
13	RedknightPartial evidence	San Antonio, TX, United StatesHQ checked Sep 4, 2026	1-10	10
	“RedKnight provides IT engineering, architecture, and support services to the Department of Defense, State and Local government, and other commercial organizations.” Source: company website · checked Sep 4, 2026
14	Deltra Systems, LLCIndirect evidence	San Antonio, TX, United StatesHQ checked Sep 4, 2026	11-50	8
	“DELTRA SYSTEMS, LLC is a company based out of 100 Taylor St, Ste 299, SAN ANTONIO, Texas, 78205, United States.” Source: company website · checked Sep 4, 2026
15	Digital Defense By HelpsystemsIndirect evidence	San Antonio, TX, United StatesHQ checked Sep 4, 2026	51-200	8
	“Serving clients across numerous industries from small businesses to very large enterprises, Digital Defense’s innovative and leading-edge technology helps organizations safeguard…” Source: company website · checked Sep 4, 2026
16	Techsage SolutionsIndirect evidence	San Antonio, TX, United StatesHQ checked Sep 4, 2026	1-10	8
	“We are Business Consultants with a Technology Focus and CMMC consultency.” Source: company website · checked Sep 4, 2026
17	Lavish Life TechnologiesStrong evidence	San Antonio, United StatesHQ checked Sep 4, 2026	1-10	7
	“At Lavish Life Tech, we provide innovative IT consulting for enterprises seeking reliable, confidential, and secure infrastructure.” Source: company website · checked Sep 4, 2026
18	Limitless IT SolutionsPartial evidence	San Antonio, TX, United StatesHQ checked Sep 4, 2026	1-10	3
	“At Limitless IT Solutions, we take a unique approach to IT, by offering custom-tailored IT solutions and support plans that align with your business's unique needs.” Source: company website · checked Sep 4, 2026
19	C2 Threat SolutionsStrong evidence	San Antonio, TX, United StatesHQ checked Sep 4, 2026	1-10	2
	“C2 Threat Solutions is a Woman-owned, Service-Disabled Veteran-Owned, Certified Security Management Consulting Company that offers comprehensive Security-Focused solutions to…” Source: company website · checked Sep 4, 2026
20	Beta Information Technology Solutions LLC DBA BitsStrong evidence	San Antonio, TX, United StatesHQ checked Sep 4, 2026	1-10	2
	“We provide leading security manufactures with a high level of security consulting as well as extreme feedback and professional testing on the products being sold and developed, in…” Source: company website · checked Sep 4, 2026
21	Primas InquisitorStrong evidence	San Antonio, TX, United StatesHQ checked Sep 4, 2026	1-10	2
	“Our mission at Primas Inquisitor is simple: to provide high-quality investigative and security consulting services for our valued clients.” Source: company website · checked Sep 4, 2026
22	MBR Technologies LLCPartial evidence	San Antonio, TX, United StatesHQ checked Sep 4, 2026	1-10	2
	“Witnessing the rising demand for quality Information Technology and Security services; we created MBR Technologies to be your secret weapon in driving business stability and…” Source: company website · checked Sep 4, 2026
23	Cyberonyx SecurityPartial evidence	San Antonio, TX, United StatesHQ checked Sep 4, 2026	1-10	2
	“CyberOnyx Security \| 🪖 Veteran-Owned Cybersecurity Partner for Small and Medium Businesses At CyberOnyx Security, we specialize in delivering personalized, proactive, and…” Source: company website · checked Sep 4, 2026

Showing 23 of 59 IT security consulting firms based in San Antonio, United States

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IT security consulting firms based in San Antonio, United States at a glance

As of Sep 4, 2026

1-10Median size (employees)

New YorkLargest hub · 239 HQs

Contacts with mobile numbers

Sep 4, 2026Data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

Email recency for this list is measured across the whole United States list rather than this city, so it is reported there. Company counts and contact totals on this page are exact for San Antonio, over 59 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 IT security consulting firms, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, 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 “IT security consulting firms”. Matching reads each company's description, not its industry code or its name.
What we exclude: Companies whose own description does not clearly place them among IT security consulting 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 an evidence 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, 458 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 4, 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.

IT security consulting firms by metro in the United States

Frequently asked

How many IT security consulting firms are there based in San Antonio, United States?

RevenueBase identified 59 IT security consulting 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 IT security consulting firms?

New York leads with 239 headquartered companies, followed by Houston (148) and Atlanta (139).

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 458 verified decision-maker contacts tracked across these 59 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 4, 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 SmartSearch, 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.