Company lists · Data refreshed September 2026
Top 22 Security consultants based in San Antonio, United States
RevenueBase identified 42 security consultants headquartered in San Antonio, United States as of September 2026 and tracks 896 professional contacts across them, including 364 with verified work emails. New York is the largest hub.
This list covers 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, 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.
The 22 largest security consultants based in San Antonio, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 460 contacts → | ||||
Indirect evidence “For more than 45 years, GDBA has developed pioneering strategies and resources for protecting public figures, government agencies, enterprises, and others facing substantial…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 2 | 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, 2026Thanks. The Data Team will review it. | |||||
| 3 | 47 contacts → | ||||
Indirect evidence “Looking for our Technology and Odoo practice?” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 4 | 39 contacts → | ||||
Partial evidence “Event Risk has expertise in the areas of security, safety, investigations and risk mitigation.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 5 | 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, 2026Thanks. The Data Team will review it. | |||||
| 6 | 31 contacts → | ||||
Partial evidence “ESPADA is a proven international security and logistics company that provides superior service in all types of environments.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 7 | 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, 2026Thanks. The Data Team will review it. | |||||
| 8 | 14 contacts → | ||||
Indirect evidence “Your business may be at risk of a cyber attack.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 9 | 13 contacts → | ||||
Strong evidence “Fox2Sierra is a full-service consultancy that provides security assessments, tools and training to mitigate the risks of terror and violence faced by government agencies…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 10 | 8 contacts → | ||||
Partial evidence “Texas Veteran Security’s mission is to provide proven methods of security to our clients.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 11 | 7 contacts → | ||||
Indirect evidence “At Lavish Life Tech, we provide innovative IT consulting for enterprises seeking reliable, confidential, and secure infrastructure.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 12 | 7 contacts → | ||||
Partial evidence “Veteran security staffing and training for the following- Armed Security Guards - Level IV Personal Protection Officers (plain clothes)- Courier Services - Patrol - Mobile Notary…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 13 | 7 contacts → | ||||
Partial evidence “We are Business Consultants with a Technology Focus and CMMC consultency.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 14 | 5 contacts → | ||||
Partial evidence “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: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 15 | 3 contacts → | ||||
Partial 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 21, 2026Thanks. The Data Team will review it. | |||||
| 16 | 3 contacts → | ||||
Partial evidence “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: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 17 | 2 contacts → | ||||
Partial evidence “C2 Threat Solutions is a Woman-owned, Service-Disabled Veteran-Owned, Certified Security Management Consulting Company that offers comprehensive Security-Focused solutions to…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 18 | 2 contacts → | ||||
Partial evidence “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: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 19 | 2 contacts → | ||||
Partial evidence “Our mission at Primas Inquisitor is simple: to provide high-quality investigative and security consulting services for our valued clients.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 20 | 1 contacts → | ||||
Indirect evidence “Strong Heritage Risk Advisors (SHRA) helps organizations identify, manage, and reduce cybersecurity, regulatory, and operational risk in today’s rapidly evolving digital landscape.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 21 | 1 contacts → | ||||
Partial evidence “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: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 22 | 1 contacts → | ||||
Indirect evidence “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: RevenueBase Database · checked Sep 21, 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: security consultants. 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 security consultants.
- Partial evidence
- Its own public description names part of security consultants, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name security consultants. 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 22 of 42 security consultants based in San Antonio, United States
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Security consultants based in San Antonio, United States at a glance
As of Sep 21, 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 42 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 security consultants, 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 “security consultants”. 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 security consultants), 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 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 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, 364 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.
Security consultants by metro in the United States
- Security consultants in New York201
- Security consultants in Houston131
- Security consultants in Los Angeles126
- Security consultants in Washington121
- Security consultants in Atlanta110
- Security consultants in Miami97
- Security consultants in Austin96
- Security consultants in Dallas93
- Security consultants in Chicago92
- Security consultants in San Francisco67
- Security consultants in Tampa63
- Security consultants in Denver55
- Security consultants in San Diego55
- Security consultants in Charlotte53
- Security consultants in Seattle53
- Security consultants in Phoenix52
- Security consultants in Las Vegas50
- Security consultants in Arlington49
- Security consultants in Orlando44
- Security consultants in Boston43
- Security consultants in San Antonio42
- Security consultants in Columbia37
- Security consultants in Alexandria36
- Security consultants in Minneapolis35
- Security consultants in Raleigh33
- Security consultants in Baltimore32
- Security consultants in Colorado Springs32
- Security consultants in Fort Lauderdale31
- Security consultants in Pittsburgh31
- Security consultants in Reston31
- Security consultants in Nashville30
- Security consultants in Portland29
- Security consultants in Jacksonville27
- Security consultants in Scottsdale27
- Security consultants in Richmond26
- Security consultants in San Jose26
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 security consultants, 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 security consultants are there based in San Antonio, United States?
RevenueBase identified 42 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?
Gavin DE Becker & Associates, headquartered in San Antonio, tops this list with the largest team on record.
Which city has the most security consultants?
New York leads with 201 headquartered companies, followed by Houston (131) and Los Angeles (126).
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 364 verified decision-maker contacts tracked across these 42 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.
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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.
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