Company lists · Data refreshed September 2026
Top 25 Information security consultants based in San Antonio, United States
RevenueBase identified 50 information security consultants headquartered in San Antonio, United States as of September 2026 and tracks 1,051 professional contacts across them, including 448 with verified work emails. New York is the largest hub.
This list covers information security consultants 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 3, 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.
The 25 largest information security consultants based in San Antonio, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | Silotech Group, INCIndirect evidence | 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 3, 2026Thanks. The Data Team will review it. | |||||
| 2 | 80 | ||||
“IPSecure provides Cyber Security Solutions to the Government and Commercial companies worldwide.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 3 | Sandtech SolutionsIndirect evidence | 63 | |||
“SandTech Solutions is a Certified 8a member as well as a Service Disabled Veteran-Owned Small Business (SDVOSB).” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 4 | 56 | ||||
Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 5 | 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 3, 2026Thanks. The Data Team will review it. | |||||
| 6 | 42 | ||||
“Digital Information Security Solutions (DBA Digiss) is a San Antonio, Texas-based cybersecurity firm.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 7 | 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 3, 2026Thanks. The Data Team will review it. | |||||
| 8 | Valiant-X Enterprise CorporationIndirect evidence | 24 | |||
“Valiant-X Enterprise provides highly-technical Professional Services within the Federal & Commercial Markets.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 9 | 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 3, 2026Thanks. The Data Team will review it. | |||||
| 10 | TaureanStrong evidence | 19 | |||
“Taurean helps organizations prevent loss and avoid damaged reputation by securing their most important asset – information.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 11 | 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 3, 2026Thanks. The Data Team will review it. | |||||
| 12 | Open Security, INCIndirect evidence | 13 | |||
“Your business may be at risk of a cyber attack.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 13 | 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 3, 2026Thanks. The Data Team will review it. | |||||
| 14 | Digital Defense By HelpsystemsIndirect evidence | 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 3, 2026Thanks. The Data Team will review it. | |||||
| 15 | Techsage SolutionsPartial evidence | 8 | |||
“We are Business Consultants with a Technology Focus and CMMC consultency.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 16 | Lavish Life TechnologiesIndirect evidence | 7 | |||
“At Lavish Life Tech, we provide innovative IT consulting for enterprises seeking reliable, confidential, and secure infrastructure.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 17 | The RMF Security GroupStrong evidence | 5 | |||
“The RMF Security Group is a cadre of highly skilled former Security Control Assessors (SCA) who realized the Information Assurance (IA) and Cyber Surety communities throughout the…” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 18 | 3 | ||||
“A premier, one-stop shop with decades of hands-on leadership experience providing client-specific security and asset management solutions to help your company reduce risk, adapt…” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 19 | 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 3, 2026Thanks. The Data Team will review it. | |||||
| 20 | 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 3, 2026Thanks. The Data Team will review it. | |||||
| 21 | MBR Technologies LLCStrong evidence | 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 3, 2026Thanks. The Data Team will review it. | |||||
| 22 | 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 3, 2026Thanks. The Data Team will review it. | |||||
| 23 | Strong Heritage Risk Advisors, LLCIndirect evidence | 1 | |||
“Strong Heritage Risk Advisors (SHRA) helps organizations identify, manage, and reduce cybersecurity, regulatory, and operational risk in today’s rapidly evolving digital landscape.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 24 | Strategic Digital Defense, LLCPartial evidence | 1 | |||
“Strategic Digital Defense, LLC is your trusted advisor for the defense of your brand, the protection of your customers' most sensitive information and guarding your firm's…” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 25 | 1 | ||||
“We are a dedicated, professional, and unbiased group who focus on helping your organization, and your IT department, make sure you are ready to handle the security challenges that…” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
Showing 25 of 50 information security consultants 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 448 reachable decision-makers.
Free signup · no credit card
Information security consultants based in San Antonio, United States at a glance
As of Sep 3, 2026Companies by employee count
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 50 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 information security consultants, 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 “information security consultants”. 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 information security consultants, 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, 448 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 3, 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.
Information security consultants by metro in the United States
- Information security consultants in New York223
- Information security consultants in Washington147
- Information security consultants in Houston139
- Information security consultants in Atlanta128
- Information security consultants in Chicago106
- Information security consultants in Miami106
- Information security consultants in Dallas102
- Information security consultants in Austin99
- Information security consultants in Tampa85
- Information security consultants in San Francisco80
- Information security consultants in Los Angeles79
- Information security consultants in San Diego65
- Information security consultants in Charlotte63
- Information security consultants in Arlington61
- Information security consultants in Boston61
- Information security consultants in Denver58
- Information security consultants in Phoenix52
- Information security consultants in Seattle51
- Information security consultants in San Antonio50
- Information security consultants in Alexandria48
- Information security consultants in Orlando47
- Information security consultants in Reston43
- Information security consultants in Las Vegas41
- Information security consultants in Raleigh39
- Information security consultants in Portland38
- Information security consultants in Columbia37
- Information security consultants in Ashburn34
- Information security consultants in Mclean34
- Information security consultants in Fairfax33
- Information security consultants in Minneapolis33
- Information security consultants in Baltimore32
- Information security consultants in Columbus30
- Information security consultants in Scottsdale30
- Information security consultants in Herndon29
- Information security consultants in Nashville29
- Information security consultants in Richmond29
- Information security consultants in Huntsville28
- Information security consultants in Wilmington28
- Information security consultants in Philadelphia27
- Information security consultants in Plano27
- Information security consultants in Indianapolis26
- Information security consultants in Pittsburgh26
- Information security consultants in Sheridan26
Frequently asked
How many information security consultants are there based in San Antonio, United States?
RevenueBase identified 50 information security consultants 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 information security consultants?
New York leads with 223 headquartered companies, followed by Washington (147) and Houston (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 448 verified decision-maker contacts tracked across these 50 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 3, 2026.
Ready to reach these companies? Verified emails and direct dials for all 50 information security consultants based in San Antonio, United States. Start with a free account, no credit card.
Get the full listRelated lists
Information security consultants by geography
- Information security consultants based in the United States
- Information security consultants based in the United Kingdom
- Information security consultants based in Brazil
- Information security consultants based in France
- Information security consultants based in Germany
- Information security consultants based in Australia
- Information security consultants based in Canada
- Information security consultants based in the Netherlands
- Information security consultants based in Italy
- Information security consultants based in Spain
- Information security consultants based in Mexico
- Information security consultants based in South Africa
Browse the directory
Browse: Companies home · Information security consultants in United States · All United States lists · All Information security consultants lists · New lists
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.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Information security consultants based in the United States
- Information security consultants based in the United Kingdom
- Information security consultants based in Brazil
- Information security consultants based in France
- Information security consultants based in Germany
- Information security consultants based in Australia