San Antonio anchors the southern end of the Austin-San Antonio corridor, but it grew on a different foundation than its northern neighbor: a deep cloud, cybersecurity, and military concentration that made it a natural home for hyperscale data centers. Here’s the metro-level picture, and what the build-out means for the equipment that eventually retires.
TL;DR
San Antonio is the southern anchor of the Austin-San Antonio corridor and a major hyperscale data center hub in its own right, built on a distinct foundation: cloud, cybersecurity, and military infrastructure. (For the statewide picture, see our Texas Data Center Market 2026 Guide, and for the corridor’s northern anchor, the Austin Data Center Market.)
The metro-level essentials:
- Microsoft has made San Antonio one of its major southwest hubs, with a substantial and growing footprint across the West Side, Westover Hills, and the Medina County / Castroville corridor west of the city.
- The market hosts dozens of facilities across multiple operators, including Microsoft, CyrusOne, Vantage, and others, concentrated in the Westover Hills area and expanding west.
- San Antonio’s distinct profile is cybersecurity and cloud, anchored by the military cyber presence (the 16th Air Force, the NSA Texas operation) that earned it the “Cyber City USA” reputation and made it a natural home for secure cloud infrastructure.
- The growth is spreading west into Medina County, where land and power are available at the scale hyperscale campuses require.
- As ROC Telecom’s home market, San Antonio is where our certified processing facility sits, giving the metro the shortest path from retirement to recovery anywhere in Texas.
The metro-specific angle for infrastructure operators: San Antonio’s combination of established hyperscale presence and high-security workloads means its retirement profile leans toward equipment with elevated data-sensitivity requirements, exactly the NIST 800-88 and ITAR-compliant handling that distinguishes serious ITAD from generic recycling.
Why San Antonio Became a Data Center Hub
San Antonio’s data center rise rests on a foundation distinct from the rest of Texas. Where Dallas grew on interconnection depth and Austin on tech and semiconductor proximity, San Antonio grew on cloud, security, and the military.
The Cybersecurity and Military Concentration
San Antonio is one of the largest cybersecurity hubs in the United States, home to the 16th Air Force (the Air Force’s information warfare command), a major NSA presence, and one of the densest concentrations of cybersecurity talent and operations in the country. This “Cyber City USA” profile created both the talent base and the security-cleared workforce that made San Antonio a natural location for secure cloud and government-adjacent data infrastructure.
For hyperscalers and operators serving government, defense, and security-sensitive workloads, San Antonio’s profile is a genuine differentiator. The same concentration that supports military cyber operations supports the secure cloud infrastructure that runs alongside it.
The Microsoft Anchor
Microsoft established San Antonio as one of its major southwest hubs, with a footprint that has grown steadily across the metro. The company operates and is developing facilities across multiple San Antonio campuses, including locations on Wiseman Boulevard, Lambda Drive, Westover Link, and Rogers Road, and has expanded aggressively into Medina County’s Castroville area west of the city, where it has filed for multiple back-to-back data center projects.
This anchor presence matters. A hyperscaler committing to a metro at Microsoft’s scale validates the location for other operators and builds out the power and fiber infrastructure that supports the broader market.
Power, Land, and the Corridor
San Antonio shares the Texas-wide advantages (no state income tax, the data center tax incentives, ERCOT’s independent grid) and adds available land and power to the west, in Medina County and the Castroville area. Its position at the southern end of the I-35 corridor integrates it with the fast-growing Austin market to the north, while its own western expansion zones provide the large parcels hyperscale campuses require.
The San Antonio Submarkets
San Antonio’s data center geography concentrates on the West Side and expands westward into the surrounding counties.
| Submarket | Profile |
|---|---|
| Westover Hills (West Side) | The established core. CyrusOne’s San Antonio campus (off State Highway 151) and multiple Microsoft facilities anchor this area, long the center of the metro’s data center activity. |
| West Side campuses (Wiseman, Lambda, Westover Link, Rogers Road) | Microsoft’s multi-campus footprint across the West Side, with facilities in operation and development |
| Medina County / Castroville | The primary western expansion zone. Microsoft is building multiple data centers here (SAT 80, SAT 81, SAT 82, and more), with the small town of Castroville becoming a growing hyperscale cluster about 10 miles west of the city. |
| Omicron Drive (Vantage campus) | Vantage’s new San Antonio campus, with multiple facilities planned and construction underway |
| Broader Bexar and Medina Counties | Continued westward expansion where land and power are available at hyperscale scale |
The pattern: an established West Side core (Westover Hills) anchored by Microsoft and CyrusOne, expanding west into Medina County where the largest new campuses are landing, much as DFW and Austin push their newest capacity toward power-rich peripheries.
Who’s Building in San Antonio
The operator mix is anchored by Microsoft’s substantial presence, with major colocation and wholesale operators alongside:
| Category | Operators Active in San Antonio |
|---|---|
| Hyperscalers | Microsoft (the dominant anchor, with numerous campuses across the West Side and Medina County), plus the broader hyperscale set drawn by the cloud and security profile |
| Colocation / wholesale | CyrusOne (San Antonio campus in Westover Hills), Vantage Data Centers (new Omicron Drive campus), and other established operators |
| Edge and regional | Operators serving the South Texas region and the broader I-35 corridor |
The demand mix reflects San Antonio’s profile: cloud infrastructure (especially Microsoft Azure), security-sensitive and government-adjacent workloads, and the growing AI and high-density compute demand reshaping every Texas market.
The Cyber and Security Dimension
San Antonio’s defining characteristic, and what most distinguishes it from the other Texas metros, is the security dimension.
The concentration of military cyber operations, the NSA presence, and the dense cybersecurity industry mean that a meaningful share of San Antonio’s data infrastructure serves security-sensitive, government-adjacent, and compliance-heavy workloads. This shapes the metro in ways that matter downstream:
- Higher data-sensitivity equipment. Infrastructure serving government, defense-adjacent, and security workloads carries elevated data-sensitivity requirements throughout its lifecycle, including at retirement.
- Compliance-driven disposition. Equipment from these environments often requires NIST 800-88 Purge or Destroy, ITAR-compliant handling for any export-controlled components, and the per-asset documentation that survives audit.
- Chain-of-custody rigor. Security-sensitive environments demand documented chain-of-custody from the moment equipment leaves the rack through final disposition.
For the metro’s retirement profile, this means San Antonio skews toward exactly the high-assurance ITAD work that separates serious certified providers from generic recyclers.
What the San Antonio Build-Out Means for Infrastructure Retirement
San Antonio’s retirement profile has two distinguishing features: the security dimension above, and ROC Telecom’s home-market presence.
The Security-Sensitive Retirement Profile
As Microsoft’s established campuses and the metro’s security-sensitive infrastructure refresh for AI and higher-density workloads, the retiring equipment carries the elevated data-handling requirements that come with San Antonio’s profile. This isn’t equipment that can be handed to a generic recycler. It requires:
- NIST 800-88 sanitization matched to the data classification, often Purge or Destroy
- ITAR-compliant handling for any export-controlled components
- Serialized Certificates of Destruction and documented chain-of-custody for audit and security review
- Secure, surveilled processing for high-sensitivity data-bearing equipment
The Home-Market Advantage
San Antonio is ROC Telecom’s headquarters and the location of our certified processing facility. For San Antonio operators, this means the shortest possible path from retirement to recovery: equipment retired from a San Antonio data center can move to a local, certified, secure facility without the extended logistics that distance adds. For security-sensitive equipment in particular, minimizing the chain-of-custody distance is a genuine advantage.
The Broader Pattern
The metro-specific implications mirror the Texas-wide pattern, applied to San Antonio’s character:
- Retirement is local and logistics-light here. Equipment retired from San Antonio data centers has the shortest path to certified processing of any Texas metro, given ROC’s local facility.
- AI re-tenanting drives compressed timelines. As San Antonio facilities refresh for next-generation AI, rapid decommissioning clears space for high-value redeployment.
- The security dimension raises the bar. Recovery and disposition in this market require the compliance depth that San Antonio’s workload profile demands.
The metro that grew on cloud and cybersecurity will retire equipment with the data-sensitivity profile that matches, and it has a certified, local partner positioned for exactly that work.
Frequently Asked Questions
How big is the San Antonio data center market?
San Antonio is a major hyperscale data center hub anchored by Microsoft, which has established it as one of its key southwest hubs. The metro hosts dozens of facilities across multiple operators including Microsoft, CyrusOne, and Vantage, concentrated in the Westover Hills area on the West Side and expanding west into Medina County and Castroville. As the southern anchor of the Austin-San Antonio corridor, which topped Cushman & Wakefield’s 2026 secondary-market ranking and now functions as a primary market, San Antonio is part of one of the fastest-growing data center markets in the country.
Why is San Antonio a data center hub?
San Antonio grew on a distinct foundation: a deep cloud, cybersecurity, and military concentration. It is one of the largest cybersecurity hubs in the United States, home to the 16th Air Force information warfare command and a major NSA presence, which earned it the “Cyber City USA” reputation and built the security-cleared talent base that made it a natural home for secure cloud infrastructure. Microsoft anchored the market with a substantial footprint, and the metro adds the Texas-wide advantages (no state income tax, data center tax incentives, ERCOT’s independent grid) plus available land and power to the west in Medina County.
What companies have data centers in San Antonio?
Microsoft is the dominant anchor, operating and developing numerous campuses across the West Side (Wiseman Boulevard, Lambda Drive, Westover Link, Rogers Road) and expanding into Medina County’s Castroville area with multiple back-to-back projects (SAT 80, SAT 81, SAT 82, and more). Other major operators include CyrusOne (San Antonio campus in Westover Hills) and Vantage Data Centers (new Omicron Drive campus). The demand mix reflects San Antonio’s cloud and security profile, especially Microsoft Azure infrastructure.
What is San Antonio’s “Cyber City” reputation?
San Antonio is one of the largest cybersecurity hubs in the United States, home to the 16th Air Force (the Air Force’s information warfare command), a major National Security Agency (NSA) presence, and one of the densest concentrations of cybersecurity talent, operations, and companies in the country. This “Cyber City USA” profile created both the security-cleared workforce and the secure-infrastructure demand that made San Antonio a natural location for cloud and government-adjacent data centers, distinguishing it from the other Texas data center metros.
Where is Microsoft building data centers in San Antonio?
Microsoft operates and is developing data centers across multiple San Antonio locations, including campuses on Wiseman Boulevard, Lambda Drive, Westover Link, and Rogers Road on the West Side, plus its campus at 3555 Westover Link. Its largest recent expansion is in Medina County’s Castroville area, about 10 miles west of the city, where it has filed for multiple projects (SAT 80 and SAT 81 announced in 2023, and the larger SAT 82 at 244,675 square feet and an estimated $482.6 million, with construction phased through 2026 and completion targeted for 2028). Castroville has become a growing hyperscale cluster within the broader San Antonio market.
How does the San Antonio data center boom affect equipment retirement?
San Antonio’s retirement profile is shaped by its security dimension. As Microsoft’s established campuses and the metro’s security-sensitive infrastructure refresh for AI and higher-density workloads, the retiring equipment carries elevated data-handling requirements: NIST 800-88 Purge or Destroy sanitization, ITAR-compliant handling for export-controlled components, serialized Certificates of Destruction, and documented chain-of-custody for audit and security review. This is high-assurance ITAD work that requires certified providers, not generic recyclers. San Antonio also benefits from being ROC Telecom’s home market, giving its operators the shortest path from retirement to certified, secure processing of any Texas metro.
What makes San Antonio different from Austin as a data center market?
Austin and San Antonio anchor opposite ends of the same I-35 corridor but grew on different foundations. Austin grew on tech-industry and semiconductor proximity, drawing AI-training and edge workloads to suburban submarkets like Round Rock and Hutto. San Antonio grew on cloud, cybersecurity, and military concentration, anchored by Microsoft and shaped by its “Cyber City” profile, with development concentrated on the West Side and expanding into Medina County. San Antonio’s workloads skew more toward secure cloud and government-adjacent infrastructure, which gives its equipment retirement a higher data-sensitivity profile.
Why is San Antonio important for secure data destruction and ITAD?
San Antonio’s concentration of cybersecurity, military, and government-adjacent infrastructure means a meaningful share of its data center equipment serves security-sensitive workloads with elevated data-handling requirements throughout the lifecycle. At retirement, this equipment typically requires NIST 800-88 Purge or Destroy sanitization, ITAR-compliant handling for any export-controlled components, secure surveilled processing, and documented chain-of-custody that survives audit. San Antonio is also ROC Telecom’s headquarters and the site of our certified processing facility, giving local operators the shortest, most secure path from retirement to certified disposition of any Texas metro.
Where is data center growth expanding in the San Antonio area?
San Antonio’s data center growth is expanding west from the established Westover Hills core on the West Side into Medina County, particularly the Castroville area about 10 miles west of the city, where Microsoft is building a growing cluster of hyperscale facilities. This westward expansion follows the same pattern as the other Texas metros: established cores anchor interconnection value while the largest new campuses land in peripheral areas where land and power are available at hyperscale scale. The metro also integrates northward with the Austin market along the I-35 corridor.
The Bottom Line
San Antonio anchors the southern end of the Austin-San Antonio corridor, but it grew on a foundation all its own: cloud, cybersecurity, and military infrastructure. Its “Cyber City USA” profile, anchored by the 16th Air Force and a major NSA presence, built the security-cleared talent base and secure-infrastructure demand that made it a natural home for hyperscale cloud, with Microsoft committing to the metro as one of its key southwest hubs and expanding aggressively west into Medina County. The established Westover Hills core anchors the market while the newest campuses land in Castroville and the surrounding counties.
For infrastructure operators, San Antonio’s distinguishing feature is the security dimension. The metro’s concentration of government-adjacent and security-sensitive workloads means its equipment retirement carries elevated data-handling requirements: NIST 800-88 sanitization, ITAR-compliant handling, secure processing, and audit-ready documentation. This is high-assurance ITAD work, and San Antonio operators have an advantage the other Texas metros don’t, ROC Telecom’s headquarters and certified processing facility sit here, giving the shortest and most secure path from retirement to recovery anywhere in Texas.
How ROC Telecom Helps
ROC Telecom is headquartered in San Antonio, an R2v3, RIOS, NIST 800-88, and ITAR-compliant ITAD specialist operating from a certified local facility:
- Local San Antonio decommissioning with the shortest path from retirement to certified processing of any Texas metro, plus 48-hour rapid-response mobilization
- Secure, NIST 800-88 data destruction (Clear, Purge, Destroy) matched to data classification, in a 24/7 surveilled, restricted-access facility for high-sensitivity equipment
- ITAR-compliant handling for export-controlled components, suited to San Antonio’s security-sensitive and government-adjacent workloads
- GPU and AI infrastructure asset recovery for the equipment categories defining the metro’s build-out, with speed-to-remarketing that protects value against generational decay
- R2v3 Appendix E materials recovery with in-house dismantling and direct-to-refiner processing
- Serialized Certificates of Destruction and documented chain-of-custody for audit and security review
- Mass-balance recovery reporting for the ESG disclosures the metro’s e-waste volumes demand
15+ years of ITAD experience, $25M+ in client capital recovered, 45M+ pounds diverted from landfill.
Explore our San Antonio coverage: San Antonio data center ITAD, decommissioning, asset recovery, and recycling.
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Related reading:
- The Texas Data Center Market: A 2026 Guide
- The Austin Data Center Market: A 2026 Overview
- Why Texas Became a Data Center Hub (And What It Means for Hardware Lifecycles)
- The Dallas-Fort Worth Data Center Market: A 2026 Overview
- Why Wiping Isn’t Destroying: A 2026 Guide to NIST 800-88 Data Sanitization
- Data Center Asset Recovery: The 2026 Strategic Guide
- Top 10 Data Center Decommissioning Companies of 2026
