| 1800datacenter.com | —not recorded | Newport Beach | | | Unclassified |
| 360 Spear Street Data Center | Digital Realty | San Francisco | | | Colocation |
| 365 Data Center, San Jose | —not recorded | San Jose | | | Unclassified |
| 365 Data Centers’ Rancho Cordova Data Center | 365 Data Centers | Rancho Cordova | | | Colocation |
| Afcom Data Center World | —not recorded | Orange | | | Unclassified |
| Alchemy Data Center Llc | —not recorded | Los Angeles | | | Unclassified |
| Amazon Web Services data center, Sunnyvale | Amazon Web Services | Sunnyvale | | | Hyperscaler |
| Amazon Web Services US West (Northern California) | Amazon Web Services | —not recorded | Operating | | Cloud region |
| Apple data center, 39745 Eureka Dr | Apple | Newark | | | Hyperscaler |
| ASB Fortune Data Centers | —not recorded | San Jose | | | Unclassified |
| AT&T | —not recorded | Palmdale | | | Unclassified |
| AT&T Center | American Telephone & Telegraph | San Diego | | | Unclassified |
| Centersquare Hawthorne LAX4 Data Center | Centersquare | Hawthorne | | 2.7 | Colocation |
| Centersquare Irvine LAX3 Data Center | Centersquare | Irvine | | 9.2 | Colocation |
| Centersquare Irvine LAX5 Data Center | Centersquare | Irvine | | 5.6 | Colocation |
| Centersquare Los Angeles Data Center (Irvine 1) | Centersquare | Irvine | | | Colocation |
| Centersquare Los Angeles Data Center (Irvine 5) | Centersquare | Irvine | | | Colocation |
| Centersquare Santa Clara SFO1 Data Center | Centersquare | Santa Clara | | 11.2 | Colocation |
| Centersquare Santa Clara SFO2 Data Center | Centersquare | Santa Clara | | 14.1 | Colocation |
| Centersquare Santa Clara SFO4 Data Center | Centersquare | Santa Clara | | 12.3 | Colocation |
| Centersquare Silicon Valley Data Center (Santa Clara 1) | Centersquare | Santa Clara | | | Colocation |
| Centersquare Silicon Valley Data Center (Santa Clara 2) | Centersquare | Santa Clara | | | Colocation |
| Centersquare Silicon Valley Data Center (Santa Clara 4) | Centersquare | Santa Clara | | | Colocation |
| Centersquare Silicon Valley Data Center (Sunnyvale) | Centersquare | Sunnyvale | | | Colocation |
| Centersquare Sunnyvale SFO3 Data Center | Centersquare | Sunnyvale | | 3.2 | Colocation |
| CenturyLink Datacenter, Sunnyvale | Lumen | Sunnyvale | | | Colocation |
| Cicreports Data Center | —not recorded | Lancaster | | | Unclassified |
| Cologix SV1 Data Center | Cologix | Santa Clara | | | Colocation |
| Colovore | —not recorded | San Jose | | | Unclassified |
| Conscious Capital Data Center | —not recorded | Rancho Cordova | | | Unclassified |
| CoreSite LA1 – One Wilshire Data Center | CoreSite | Los Angeles | | | Colocation |
| CoreSite LA2 - Los Angeles Data Center | CoreSite | Los Angeles | | | Colocation |
| CoreSite LA3 Data Center | CoreSite | Los Angeles | | | Colocation |
| CoreSite SV1 - San Jose Data Center | CoreSite | San Jose | | | Colocation |
| CoreSite SV2 Data Center | CoreSite | Milpitas | | | Colocation |
| CoreSite SV3 | CoreSite | Santa Clara | | | Colocation |
| CoreSite SV4 - Santa Clara Data Center | CoreSite | Santa Clara | | | Colocation |
| CoreSite SV5 | CoreSite | Sunnyvale | | | Colocation |
| CoreSite SV6 | CoreSite | Sunnyvale | | | Colocation |
| CoreSite SV7 Data Center | CoreSite | Santa Clara | | | Colocation |
| CoreSite SV8 Data Center | CoreSite | Santa Clara | | | Colocation |
| CoreSite SV9 Data Center | CoreSite | Santa Clara | | | Colocation |
| Corona | Kaiser Permanente | Corona | | | Enterprise |
| Csquare SFO1 | Csquare | Santa Clara | | | Unclassified |
| Csquare SFO2 | Csquare | Santa Clara | | | Unclassified |
| Csquare SFO3 | Csquare | Sunnyvale | | | Unclassified |
| Csquare SFO4 | Csquare | Santa Clara | | | Unclassified |
| Cyxtera Los Angeles Data Center - Lax1 | Centersquare | El Segundo | Closed | | Colocation |
| Cyxtera Los Angeles Data Center - Lax2 | Centersquare | Burbank | Closed | | Colocation |
| Cyxtera Los Angeles Data Center - Lax3 Campus | Centersquare | Irvine | | | Colocation |
| Data center, Santa Clara, 3205 Bassett Street | —not recorded | Santa Clara | | | Unclassified |
| Data center, San Jose | —not recorded | San Jose | | | Unclassified |
| Data center, Los Angeles, 624 South Grand Avenue | —not recorded | Los Angeles | | | Unclassified |
| Data center, Santa Clara, 2220 De La Cruz Boulevard | —not recorded | Santa Clara | | | Unclassified |
| Data center, Santa Clara, 2590 Walsh Avenue | —not recorded | Santa Clara | | | Unclassified |
| Data center, San Diego | —not recorded | San Diego | | | Unclassified |
| Data center, Los Angeles, 707 Wilshire Blvd | —not recorded | Los Angeles | | | Colocation |
| Data Center Capital Markets | —not recorded | Los Angeles | Closed | | Unclassified |
| Data Center Services - California Department of Technology | —not recorded | Rancho Cordova | | | Unclassified |
| Data Center Solutions, Long Beach | —not recorded | Long Beach | | | Unclassified |
| DataBank Irvine Data Center (SNA1) | DataBank | Irvine | | 2.64 | Colocation |
| DataBank Irvine Data Center (SNA2) | DataBank | Irvine | | 8 | Colocation |
| DataBank Los Angeles One Wilshire Data Center (LAX1) | DataBank | Los Angeles | | 2 | Colocation |
| DataBank Los Angeles Vernon Data Center (LAX2) | DataBank | Vernon | | 32 | Colocation |
| DataBank San Diego World Trade Data Center (SAN1) | DataBank | San Diego | | 7.2 | Colocation |
| DataBank Silicon Valley Data Center (SFO1) | DataBank | Santa Clara | | 3 | Colocation |
| Datacenter Del Norte | —not recorded | San Ysidro | Closed | | Unclassified |
| Datacenterandcolocation | —not recorded | San Diego | | | Colocation |
| Defense Manpower Data Center | —not recorded | Seaside | | | Enterprise |
| Dell 350 Holger Way | —not recorded | San Jose | | | Unclassified |
| Digital Realty BUR10 | Digital Realty | Burbank | | | Colocation |
| Digital Realty data center, 2220 De La Cruz BoulevardSC1 | Digital Realty | Santa Clara | | 60 | Colocation |
| Digital Realty data center, 2401 Walsh Ave | Digital Realty | Santa Clara | | | Colocation |
| Digital Realty LAX10 | Digital Realty | Los Angeles | | 27 | Colocation |
| Digital Realty LAX11 | Digital Realty | El Segundo | | | Colocation |
| Digital Realty LAX12 | Digital Realty | El Segundo | | 18 | Colocation |
| Digital Realty OAK10 | Digital Realty | Oakland | | 14.5 | Colocation |
| Digital Realty SFO10 | Digital Realty | San Francisco | | 45 | Colocation |
| Digital Realty SFO12 | Digital Realty | San Francisco | | 15 | Colocation |
| Digital Realty SJC10 | Digital Realty | Santa Clara | | 18 | Colocation |
| Digital Realty SJC11 | Digital Realty | Santa Clara | | 9 | Colocation |
| Digital Realty SJC14 | Digital Realty | Santa Clara | | 9 | Colocation |
| Digital Realty SJC15 | Digital Realty | Santa Clara | | 4.5 | Colocation |
| Digital Realty SJC16 | Digital Realty | Santa Clara | | 9 | Colocation |
| Digital Realty SJC29 | Digital Realty | Santa Clara | | 6.2 | Colocation |
| Digital Realty SJC30 | Digital Realty | Santa Clara | | | Colocation |
| Digital Realty SJC31 | Digital Realty | Santa Clara | | 9 | Colocation |
| Digital Realty SJC34 | Digital Realty | Santa Clara | | 7.5 | Colocation |
| Digital Realty SJC35 | Digital Realty | Santa Clara | | 13.5 | Colocation |
| Digital Realty SJC37 | Digital Realty | Santa Clara | | 100 | Colocation |
| Digital West Data Center | —not recorded | San Luis Obispo | | | Unclassified |
| Drohan Data Center | McKesson Corporation | Rancho Cordova | | | Enterprise |
| e360 | —not recorded | Concord | | | Unclassified |
| EdgeConneX Sacramento, CASAC | EdgeConneX | Sacramento | Operating | | Colocation |
| EdgeConneX San Diego, CA (SDG) | EdgeConneX | San Diego | Operating | | Colocation |
| EdgeConneX Santa Clara, CA (SVC) | EdgeConneX | Santa Clara | Operating | | Colocation |
| EdgeCore Silicon Valley | —not recorded | Sunnyvale | | | Unclassified |
| Equinix Los Angeles LA1 | Equinix | Los Angeles | | | Colocation |
| Equinix Los Angeles LA3 | Equinix | El Segundo | | | Colocation |
| Equinix Los Angeles LA4 | Equinix | El Segundo | | | Colocation |
| Equinix Los Angeles LA7 | Equinix | Torrance | | | Colocation |
| Equinix Silicon Valley SV1 | Equinix | San Jose | | | Colocation |
| Equinix Silicon Valley SV10 | Equinix | San Jose | | | Colocation |
| Equinix Silicon Valley SV11 | Equinix | San Jose | | | Colocation |
| Equinix Silicon Valley SV12x | Equinix | San Jose | | | Colocation |
| Equinix Silicon Valley SV14 | Equinix | Santa Clara | | | Colocation |
| Equinix Silicon Valley SV15 | Equinix | Santa Clara | | | Colocation |
| Equinix Silicon Valley SV16 | Equinix | Santa Clara | | | Colocation |
| Equinix Silicon Valley SV2 | Equinix | Santa Clara | | | Colocation |
| Equinix Silicon Valley SV3 | Equinix | San Jose | | | Colocation |
| Equinix Silicon Valley SV4 | Equinix | Sunnyvale | | | Colocation |
| Equinix Silicon Valley SV5 | Equinix | San Jose | | | Colocation |
| Equinix Silicon Valley SV8 | Equinix | Palo Alto | | | Colocation |
| Equinix SV17 | Equinix | Santa Clara | | | Colocation |
| Equinix SV6 | Equinix | Sunnyvale | | | Colocation |
| Evocative data center, 1200 W 7th St | Evocative | Los Angeles | | | Colocation |
| Evocative Data Centers Los Angeles Facility (LAX10) | Evocative | El Segundo | Closed | | Colocation |
| Evocative Los Angeles Data Center (LAX2) | Evocative | Los Angeles | | | Colocation |
| Evocative Redondo Beach Data Center (LAX14) | Evocative | Redondo Beach | | | Colocation |
| Evocative San Jose Data Center (SJC7) | Evocative | San Jose | | | Colocation |
| Evocative Santa Clara Data Center (SJC11) | Evocative | Santa Clara | | | Colocation |
| Evocative Santa Clara Data Center (SJC14) | Evocative | Santa Clara | | | Colocation |
| Evocative Santa Clara Data Center (SJC3) | Evocative | Santa Clara | | | Colocation |
| Evoque Data Center Solutions, San Diego | Centersquare | San Diego | | | Colocation |
| Evoque Data Center Solutions, Hawthorne | Centersquare | Hawthorne | | | Colocation |
| Evoque Data Center Solutions, Redwood City | Centersquare | Redwood City | | | Colocation |
| Evoque Data Center Solutions, San Jose | Centersquare | San Jose | | | Colocation |
| Fairfield Datacenter | AT&T Services, Inc. | West Sacramento | | | Enterprise |
| Forescout Technologies, Inc | —not recorded | San Jose | | | Unclassified |
| Global Data Centers & Partners | —not recorded | Tiburon | | | Unclassified |
| H5 data center, 2030 Fortune Dr | H5 | San Jose | | | Colocation |
| H5 San Luis Obispo, CA Data Center | H5 | San Luis Obispo | | | Colocation |
| H5 Silicon Valley, CA Data Center | H5 | Sunnyvale | | | Colocation |
| Hard Disk Direct | —not recorded | Fremont | | | Unclassified |
| Hurricane Electric Fremont 1 | Hurricane Electric | Fremont | | | Unclassified |
| Hurricane Electric Fremont 2 | Hurricane Electric | Fremont | | | Unclassified |
| Inap Los Angeles Data Center | —not recorded | Redondo Beach | Closed | | Unclassified |
| Inap Silicon Valley Data Center | —not recorded | Santa Clara | Closed | | Unclassified |
| Intelishift - A Sidus Group Company - San Francisco Data Center | —not recorded | San Francisco | Closed | | Unclassified |
| Internap Data Center - Lax014 | —not recorded | Redondo Beach | Closed | | Unclassified |
| Irvine Data Center | —not recorded | Irvine | | | Unclassified |
| Kaiser Data Center | —not recorded | —not recorded | | | Unclassified |
| Kaiser Permanente Data Center | —not recorded | Corona | | | Unclassified |
| LA1 Data Center | Centersquare | El Segundo | | | Colocation |
| LAX2-A | Centersquare | Los Angeles | | | Colocation |
| LAX5-A Irvine Data Center | —not recorded | Irvine | | | Unclassified |
| Legislative Data Center | —not recorded | Sacramento | | | Unclassified |
| LightEdge SAN1 | —not recorded | San Diego | | | Colocation |
| Long Beach Data Center | —not recorded | Long Beach | | | Unclassified |
| Lumen data center, Burbank | Lumen | Burbank | | | Colocation |
| Lumen data center, 200 North Nash Street | Lumen | El Segundo | | | Colocation |
| Lumen Network Colocation Anaheim, CA | Lumen | Anaheim | | | Colocation |
| Lumen Network Colocation Bakersfield, CA | Lumen | Bakersfield | | | Colocation |
| Lumen Network Colocation Emeryville, CA | Lumen | Emeryville | | | Colocation |
| Lumen Network Colocation Fresno, CA | Lumen | Fresno | | | Colocation |
| Lumen Network Colocation Hayward, CA | Lumen | Hayward | | | Colocation |
| Lumen Network Colocation Los Angeles, CA | Lumen | Los Angeles | | | Colocation |
| Lumen Network Colocation Manchester, CA | Lumen | Manchester | | | Colocation |
| Lumen Network Colocation Modesto, CA | Lumen | Modesto | | | Colocation |
| Lumen Network Colocation Riverside, CA | Lumen | Riverside | | | Colocation |
| Lumen Network Colocation Sacramento, CA | Lumen | Sacramento | | | Colocation |
| Lumen Network Colocation San Bernardino, CA | Lumen | San Bernardino | | | Colocation |
| Lumen Network Colocation San Diego, CA | Lumen | San Diego | | | Colocation |
| Lumen Network Colocation San Luis Obispo, CA | Lumen | San Luis Obispo | | | Colocation |
| Lumen Network Colocation Santa Barbara, CA | Lumen | Santa Barbara | | | Colocation |
| Lumen Network Colocation Santa Clara, CA | Lumen | Santa Clara | | | Colocation |
| Lumen Network Colocation Sunnyvale, CA | Lumen | Sunnyvale | | | Colocation |
| Lumen Network Colocation Tustin, CA | Lumen | Tustin | | | Colocation |
| Lumen Santa Clara | Lumen | San Jose | | | Colocation |
| Lumen Sunnyvale 1 | Lumen | Sunnyvale | | | Colocation |
| Microsoft data center, 2055 Lafayette Street | Microsoft | Santa Clara | | | Hyperscaler |
| Microsoft West US | Microsoft | —not recorded | Operating | | Cloud region |
| Millennium Systems Data Center / On Site Technicians | —not recorded | Irvine | | | Unclassified |
| Mitchell C. Hill Student Data Center | —not recorded | Pomona | | | Unclassified |
| Modesto Junior College West Data Center | Yosemite Community College District | Modesto | | | Enterprise |
| Net Data Centers | —not recorded | El Segundo | | | Unclassified |
| Network Data Center Host | —not recorded | Irvine | Closed | | Unclassified |
| Northwest Data Center and Communications Hub | —not recorded | Stanford | | | Unclassified |
| Ntirety data center, 630 3rd Street | Ntirety | San Francisco | | | Unclassified |
| NTT Global Data Centers data center, 2334 Lundy Place | NTT Global Data Centers | San Jose | | | Colocation |
| NTT Global Data Centers Sacramento CA1 Data Center | NTT Global Data Centers | Sacramento | | 12.6 | Colocation |
| NTT Global Data Centers Sacramento CA2 Data Center | NTT Global Data Centers | Sacramento | | 26.1 | Colocation |
| NTT Global Data Centers Sacramento CA3 Data Center | NTT Global Data Centers | Sacramento | | 14 | Colocation |
| NTT Global Data Centers Silicon Valley SV1 Data Center | NTT Global Data Centers | Santa Clara | | 16 | Colocation |
| OC2 Phase I | Centersquare | Irvine | | | Colocation |
| Ocix Data Center And Colocation | —not recorded | Santa Ana | | | Colocation |
| One Wilshire | —not recorded | Los Angeles | | | Unclassified |
| Open Computing Facility | —not recorded | Berkeley | | | Unclassified |
| OpenColo | —not recorded | Santa Clara | | | Unclassified |
| Oracle US West (San Jose) | Oracle | San Jose | Operating | | Cloud region |
| Orange County Data Center | —not recorded | Santa Ana | | | Enterprise |
| Osi Datacenter Technologies, Llc | —not recorded | Del Mar | | | Unclassified |
| Petadata | —not recorded | —not recorded | | | Unclassified |
| PG&E Datacenter | —not recorded | Fairfield | | | Unclassified |
| Prime Santa Clara, Sunnyvale | Prime Data Centers | Sunnyvale | | | Colocation |
| Prime Santa Clara, San Jose | Prime Data Centers | San Jose | | | Colocation |
| QES Computers | —not recorded | —not recorded | | | Unclassified |
| QTS Sacramento | QTS | Sacramento | | 4 | Colocation |
| QTS Santa Clara | QTS | Santa Clara | | 7.5campus | Colocation |
| San Diego Supercomputer Center | —not recorded | San Diego | | | Unclassified |
| Santa Clara 4 & 5 | Centersquare | Santa Clara | | | Colocation |
| Santa Clara 8 & 9 | Centersquare | Santa Clara | | | Colocation |
| SDSU Computer Room | —not recorded | San Diego | | | Unclassified |
| Serverfarm Burbank, CA | Serverfarm | Burbank | Under construction | | Colocation |
| Serverfarm LAX1 - Los Angeles Data Center | Serverfarm | Los Angeles | | 17.3 | Colocation |
| Serverfarm Santa Clara, CA | Serverfarm | Santa Clara | Under construction | | Colocation |
| Silicon Valley Colocation | —not recorded | Santa Clara | | | Colocation |
| SJDC Information Technology & Data Center | —not recorded | Stockton | | | Unclassified |
| Smh Colocation | —not recorded | Anaheim | | | Colocation |
| STACK Infrastructure data center, 2150 Trade Zone Boulevard | STACK Infrastructure | San Jose | | | Colocation |
| STACK Infrastructure SVY01 – San Jose | STACK Infrastructure | San Jose | | 100campus | Colocation |
| STACK Infrastructure SVY02 – Santa Clara | STACK Infrastructure | Santa Clara | | 48campus | Colocation |
| SV Colo data center, Richard Avenue | SV Colo | Santa Clara | | | Colocation |
| T5 Data Centers data center, 444 N Nash St | T5 Data Centers | El Segundo | | | Colocation |
| T5@Los Angeles | T5 Data Centers | Los Angeles | | | Colocation |
| Telehouse Los Angeles Center | Telehouse | Los Angeles | | | Colocation |
| Telx's Los Angeles Los1 Colocation, Cloud And Interconnection Data Center | —not recorded | Los Angeles | | | Colocation |
| Telx's Santa Clara Scl1 Colocation, Cloud And Interconnection Data Center | —not recorded | Santa Clara | | | Colocation |
| Telx's Santa Clara Scl2 Interconnection, Cloud And Colocation Data Center | —not recorded | Santa Clara | Closed | | Colocation |
| TPx Communications data center, 2001 East Dyer Road | TPx Communications | Santa Ana | | | Colocation |
| USC DataCenter | —not recorded | Los Angeles | | | Unclassified |
| USPO Terminal Annex | United States Postal Service | Los Angeles | | | Unclassified |
| Vantage data center, Sunnyvale | Vantage | Sunnyvale | | | Colocation |
| Vantage Santa Clara I – California | Vantage | Santa Clara | | 77campus | Colocation |
| Vantage Santa Clara II – California | Vantage | Santa Clara | | 75campus | Colocation |
| Vantage Santa Clara III – California | Vantage | Santa Clara | | 64campus | Colocation |
| Vineyard Data Center Park | —not recorded | San Francisco | | | Unclassified |
| Vxchnge Data Center | —not recorded | Santa Clara | | | Colocation |
| Xo Communications Colocation Data Center | —not recorded | Santa Ana | | | Colocation |
| XO Fremont | XO | Fremont | | | Unclassified |
| Zayo Data Center - OC2 | Zayo | Irvine | | | Colocation |