Company lists · Data refreshed September 2026
Top 12 Facility security management firms based in San Antonio, United States
RevenueBase identified 26 facility security management firms headquartered in San Antonio, United States as of September 2026 and tracks 316 professional contacts across them, including 39 with verified work emails. Across the United States, New York is the largest hub for this category (157 companies); San Antonio has 26.
This list covers facility security management 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 28, 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 12 largest facility security management firms based in San Antonio, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 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 28, 2026Thanks. The Data Team will review it. | |||||
| 2 | 31 contacts → | ||||
Partial evidence “JG Security stands out as the preferred on-site security provider for over 50 esteemed companies across the US.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 3 | 15 contacts → | ||||
Partial evidence “We have created proprietary technology that allows us to provide a high level service, at a midlevel pricing which allows us to pay our security staff at $17 an hour which allows…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 4 | 9 contacts → | ||||
Strong evidence “Monitor Dynamics (Mon Dyn) is a U.S-based leader in unified security management.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 5 | 9 contacts → | ||||
Partial evidence “Specializes in providing security guard services to residential communities as well as government and corporate entities.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 6 | 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 28, 2026Thanks. The Data Team will review it. | |||||
| 7 | 4 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 8 | 4 contacts → | ||||
Partial evidence “We are a security access control and CCTV company based in San Antonio, Texas, dedicated to providing top-quality security solutions to protect your home, business, and property.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 9 | 3 contacts → | ||||
Partial evidence “Ran-Gar Security Solutions is a woman-owned, veteran operated security firm based in Texas, servicing San Antonio, Ft Worth, and surrounding areas since 2017.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 10 | 3 contacts → | ||||
Indirect evidence “Price Protective Services, Inc is a company based out of San Antonio, Texas, United States.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 11 | 2 contacts → | ||||
Strong 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 28, 2026Thanks. The Data Team will review it. | |||||
| 12 | 1 contacts → | ||||
Partial evidence “CM Security Solutions is a family owned and operated security services company located in San Antonio, TX.” Source: RevenueBase Database · checked Sep 28, 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: facility security management 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 facility security management firms.
- Partial evidence
- Its own public description names part of facility security management firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name facility security management 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 12 of 26 facility security management firms 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 39 reachable decision-makers.
Free signup · no credit card
Facility security management firms based in San Antonio, United States at a glance
As of Sep 28, 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 26 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 facility security management 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 “facility security management 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 facility security management 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 facility security management 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, 39 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 28, 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.
Facility security management firms by metro in the United States
- Facility security management firms in New York157
- Facility security management firms in Los Angeles125
- Facility security management firms in Houston109
- Facility security management firms in Miami92
- Facility security management firms in Dallas72
- Facility security management firms in Chicago59
- Facility security management firms in Atlanta55
- Facility security management firms in Phoenix45
- Facility security management firms in Austin44
- Facility security management firms in Denver39
- Facility security management firms in Las Vegas37
- Facility security management firms in San Diego35
- Facility security management firms in Charlotte30
- Facility security management firms in Baltimore28
- Facility security management firms in Washington28
- Facility security management firms in Sacramento26
- Facility security management firms in Fort Lauderdale25
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 facility security management 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 facility security management firms are there based in San Antonio, United States?
RevenueBase identified 26 facility security management 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?
Defense Consulting Services, LLC, headquartered in San Antonio, tops this list with the largest team on record.
Which city in the United States has the most facility security management firms?
New York leads the United States with 157 headquartered companies, followed by Los Angeles (125) and Houston (109). San Antonio has 26.
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 39 verified decision-maker contacts tracked across these 26 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 28, 2026.
Ready to reach these companies? Verified emails and direct dials for all 26 facility security management firms based in San Antonio, United States. Start with a free account, no credit card.
Download this list →Related lists
Facility security management firms by geography
- Facility security management firms based in Melbourne, Australia
- Facility security management firms based in Sydney, Australia
- Facility security management firms based in Belo Horizonte, Brazil
- Facility security management firms based in Curitiba, Brazil
- Facility security management firms based in Rio De Janeiro, Brazil
- Facility security management firms based in Sao Paulo, Brazil
- Facility security management firms based in Calgary, Canada
- Facility security management firms based in Mississauga, Canada
- Facility security management firms based in Montreal, Canada
- Facility security management firms based in Ottawa, Canada
- Facility security management firms based in Toronto, Canada
- Facility security management firms based in Santiago, Chile
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.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Facility security management firms based in Melbourne, Australia
- Facility security management firms based in Sydney, Australia
- Facility security management firms based in Belo Horizonte, Brazil
- Facility security management firms based in Curitiba, Brazil
- Facility security management firms based in Rio De Janeiro, Brazil
- Facility security management firms based in Sao Paulo, Brazil