Company lists · Data refreshed September 2026
Top 25 IT security managed services based in San Antonio, United States
RevenueBase identified 51 IT security managed services headquartered in San Antonio, United States as of September 2026 and tracks 841 professional contacts across them, including 242 with verified work emails. New York is the largest hub.
This list covers IT security managed services 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 25 largest IT security managed services based in San Antonio, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 389 contacts → | ||||
Strong 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, 2026Thanks. The Data Team will review it. | |||||
| 2 | 78 contacts → | ||||
Indirect evidence “We’re a full-service MSP offering custom, leading-edge solutions for SMB, midmarket, and enterprise organizations.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 3 | 58 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 4 | 55 contacts → | ||||
Strong 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, 2026Thanks. The Data Team will review it. | |||||
| 5 | 45 contacts → | ||||
Partial evidence “Digital Information Security Solutions (DBA Digiss) is a San Antonio, Texas-based cybersecurity firm.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 6 | 25 contacts → | ||||
Partial evidence “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: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 7 | 21 contacts → | ||||
Strong 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, 2026Thanks. The Data Team will review it. | |||||
| 8 | 16 contacts → | ||||
Partial evidence “210 IT has been proudly serving San Antonio and surrounding areas for over 20 years.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 9 | 10 contacts → | ||||
Strong evidence “Varay Managed IT, founded in 2002, is a locally owned and operated business focused on providing clients with managed IT, cybersecurity, IT consulting, and business continuity…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 10 | 8 contacts → | ||||
Strong evidence “TerminalSolutions is a premier Managed Service Provider (MSP) delivering nationwide IT excellence.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 11 | 8 contacts → | ||||
Indirect evidence “EduTEKS has spent years developing services tailored to our clients with the focus of bringing enterprise grade services to the small and mid-size business market.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 12 | 8 contacts → | ||||
Indirect evidence “Serving clients across numerous industries from small businesses to very large enterprises, Digital Defense’s innovative and leading-edge technology helps organizations safeguard…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 13 | 7 contacts → | ||||
Indirect evidence “Solid Border is a Cybersecurity Boutique.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 14 | 7 contacts → | ||||
Indirect evidence “ITSC, Information Technology Strategic Communications LLC.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 15 | 5 contacts → | ||||
Partial evidence “We provide unique managed service solutions to small to medium sized businesses in the San Antonio area.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 16 | 5 contacts → | ||||
Partial evidence “TopBox Solutions takes a proactive approach to IT support, freeing small and mid-sized organizations to focus on their core business.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 17 | 5 contacts → | ||||
Partial evidence “At Granado Technologies, we are dedicated to providing top-tier IT solutions with a focus on professionalism, agility, and collaboration.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 18 | 4 contacts → | ||||
Partial evidence “LD3 Technology specializes in a wide range of services, including tailored IT services and solutions for small and medium businesses and their owners in Central Texas and beyond.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 19 | 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. | |||||
| 20 | 3 contacts → | ||||
Partial evidence “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: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 21 | 2 contacts → | ||||
Partial evidence “About CDR Business IT Solutions We are a San Antonio based company that focuses on Business IT Solutions.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 22 | 2 contacts → | ||||
Strong evidence “The IT Security Guys | Creating Tech Partnerships for the Future The IT Security Guys is a forward-thinking Managed Service Provider (MSP) committed to creating tech partnerships…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 23 | 2 contacts → | ||||
Strong evidence “ONIT Technology Solutions provides managed IT support services, web & mail security, archiving, backup, networking & security solutions and VoIP Phone systems for small to…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 24 | 2 contacts → | ||||
Partial evidence “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: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 25 | 1 contacts → | ||||
Strong evidence “IT Network Professionals takes a responsive and progressive approach in providing Managed IT Support Services.” 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: IT security managed services. 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 IT security managed services.
- Partial evidence
- Its own public description names part of IT security managed services, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name IT security managed services. 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 51 IT security managed services based in San Antonio, United States
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IT security managed services 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 51 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 managed services, 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 “IT security managed services”. 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 IT security managed services), 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 IT security managed services, 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, 242 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.
IT security managed services by metro in the United States
- IT security managed services in New York230
- IT security managed services in Houston163
- IT security managed services in Austin114
- IT security managed services in Miami108
- IT security managed services in Dallas104
- IT security managed services in Chicago93
- IT security managed services in Atlanta89
- IT security managed services in San Diego76
- IT security managed services in Tampa75
- IT security managed services in San Francisco70
- IT security managed services in Los Angeles69
- IT security managed services in Charlotte61
- IT security managed services in Las Vegas58
- IT security managed services in Phoenix58
- IT security managed services in Washington56
- IT security managed services in Denver55
- IT security managed services in Irvine52
- IT security managed services in San Antonio51
- IT security managed services in Boston39
- IT security managed services in Orlando38
- IT security managed services in Portland37
- IT security managed services in Wilmington37
- IT security managed services in San Jose36
- IT security managed services in Columbia35
- IT security managed services in Cincinnati34
- IT security managed services in Scottsdale33
- IT security managed services in Seattle32
- IT security managed services in Arlington31
- IT security managed services in Fort Lauderdale31
- IT security managed services in Plano30
- IT security managed services in Alexandria28
- IT security managed services in Jacksonville28
- IT security managed services in Nashville28
- IT security managed services in Pittsburgh28
- IT security managed services in Raleigh28
- IT security managed services in Indianapolis27
- IT security managed services in Columbus26
- IT security managed services in Louisville26
- IT security managed services in Sheridan26
- IT security managed services in Frisco25
- IT security managed services in Richmond25
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 IT security managed services, 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 IT security managed services are there based in San Antonio, United States?
RevenueBase identified 51 IT security managed services 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 IT security managed services?
New York leads with 230 headquartered companies, followed by Houston (163) and Austin (114).
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 242 verified decision-maker contacts tracked across these 51 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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