Researched November 9, 2026
Data centers in California
Spezia tracks 28 data center projects in California: 5 under construction, 3 announced, 7 operating, 2 blocked or paused, 11 with no stated status. The 3 active projects that state a size add up to 114 MW.
- Under construction5
- Announced3
- Operational7
- Blocked or paused2
- Unknown11
- 1 project with FAA crane filings
- 1 project with EPA construction stormwater coverage
- 2 projects with an EPA air permit
Most projects: San Jose (8), Santa Clara (6), Los Angeles (2), San Francisco (2), Vernon (2), Alviso (1), El Centro (1), Gilroy (1).
Every tracked project in California
Being built first, then by stated size. Open a project for its sources, its public records and what is known about who is on the job.
- Microsoft Alviso Data CenterUnder constructionAlvisoMicrosoft48 MW
- Microsoft North San Jose Data CenterUnder constructionSan JoseMicrosoft48 MW
- SMF02Under constructionSacramentoPrime Data Centers18 MW
- 237 Industrial Data Center and Microsoft Corporation ExpansionUnder constructionSan JoseMicrosoftSize not stated
- Amazon data center in northeast GilroyUnder constructionGilroyDeveloper not namedSize not stated
- 326 Charcot Ave. data centerAnnouncedSan JosePrologis99 MW
- CSC-1 AI data centre campusAnnouncedSanta ClaraECLSize not stated
- Imperial Valley Computer Manufacturing, LLC (IVCM) data centerAnnouncedImperialImperial Valley Computer Manufacturing, LLC (IVCM)Size not stated
- Vantage Data Centers Santa Clara Campus (CA1, CA2 & CA3)OperationalSanta ClaraVantage Data Centers216 MW
- CoreSite LA3 Data CenterOperationalLos AngelesCoreSite Realty Corporation6 MW
- 1101 Space Park Drive – ColovoreOperationalSanta ClaraColovoreSize not stated
- Hyperscale Data Center - Santa Clara, CAOperationalSanta ClaraDeveloper not namedSize not stated
- MV-1 AI data centreOperationalMountain ViewECLSize not stated
- One WilshireOperationalLos AngelesDeveloper not namedSize not stated
- Vantage Data Centers CA3OperationalSanta ClaraVantage Data CentersSize not stated
- Imperial Data CenterBlocked or pausedTown not statedImperial Valley Computer Manufacturing, LLCSize not stated
- Imperial Valley Computer Manufacturing data centerBlocked or pausedEl CentroImperial Valley Computer ManufacturingSize not stated
- SVY01 San Jose 100 MW campus expansionUnknownSan JoseSTACK Infrastructure100 MW
- Microsoft San Jose Data Center (SJDC)UnknownSan JoseMicrosoft Corporation99 MW
- LAX01-01 Data CenterUnknownVernonPrime Data Centers33 MW
- Butcher Power manufacturing relocationUnknownRancho CordovaButcher PowerSize not stated
- Data center on 15-acre western perimeter lot at Western Digital campusUnknownSan JoseMicrosoft CorporationSize not stated
- Equinix SV12 Data CenterUnknownSan JoseEquinixSize not stated
- Potrero Power Station Mixed-Use Development ProjectUnknownSan FranciscoCalifornia Barrel Company, LLCSize not stated
- Prime Data CenterUnknownVernonPrime Data CentersSize not stated
- Proposed Dogpatch data center (Nestori/Nestori Park Capital)UnknownSan FranciscoNestori Park CapitalSize not stated
- Silicon Valley Power expansion projectUnknownSanta ClaraSilicon Valley PowerSize not stated
- STACK data center, North San JoseUnknownSan JoseStack InfrastructureSize not stated
Who is building and supplying the California projects
- Named builders and suppliersThe general contractor, trades and equipment suppliers named on each California project, and which roles are still open.Ultra
- Buying stage by tradeWhat each trade is likely buying on each job now.Ultra
- ContactsSenior people at the companies on each job, where public pages name them.Ultra
- Who pays whomEquity, loans, leases, power deals and equipment orders, each with its source.Ultra
- AlertsAn email the day a California project you watch moves, plus a weekly roundup.Ultra
A free account opens every project file 3 days a month. Ultra opens it every day, $299 a month.
Get the active California projects in your inbox.
Tell us what you sell. You get the approved and under-construction projects in California and the states you add, with their stage and size, and a short walkthrough of the full files if it fits. No card.
Get the California project list by email
Free. The active data center projects in California, with stage, stated size and town, as a spreadsheet. Pick another state if you work elsewhere. Plus the week's moves every Tuesday, if you want them.
Questions about data centers in California
How many data center projects are in California?
Spezia tracks 28 data center projects in California: 5 under construction, 3 announced, 7 operating, 2 blocked or paused, 11 with no stated status. Projects found in public sources only; a campus counts once.
Where are data centers being built in California?
The most projects are in San Jose (8), Santa Clara (6), Los Angeles (2), San Francisco (2).
What is the largest data center project in California?
By the size its sources state, Vantage Data Centers Santa Clara Campus (CA1, CA2 & CA3) in Santa Clara, at 216 MW, operating.
How many data centers are under construction in California?
5 projects are under construction. 4 projects here have an FAA crane filing or an EPA permit on record.
Data centers in other states
- Texas 187
- Ohio 60
- Virginia 47
- Arkansas 40
- Mississippi 38
- Georgia 35
- Wyoming 35
- Nevada 30
- Indiana 28
- Louisiana 28
- Oklahoma 26
- Pennsylvania 25
- Alabama 24
- Arizona 24
- Kentucky 24
- Colorado 23
- North Dakota 22
- West Virginia 22
- Missouri 21
- Tennessee 21
- Minnesota 19
- Oregon 19
- Illinois 17
- Michigan 17
- Idaho 16
- Utah 16
- New York 15
- South Carolina 15
- Wisconsin 15
- Iowa 14
- New Jersey 14
- North Carolina 14
- New Mexico 13
- Florida 11
- Kansas 8
- South Dakota 8
- Washington 7
- Maryland 6
- Montana 6
- Nebraska 5
- Massachusetts 3
- Connecticut 1