Tucson, unincorporated, Pima County, AZ
TECfusions Tucson data center
Why this stage: Pima County shows certificates of occupancy issued for TECfusions data center Phases 1, 2 and 3 at 3701 E Columbia St. This is a government operating record. The county records name TECfusions, not TensorWave. The TensorWave link comes from the companies' joint release.
- Owner or developer
- TECfusions, operator. Property owner AC 3701 E Columbia Street LLC.
- TensorWave's role
- Tenant
- Link to TensorWave
- “TensorWave's current deployment in Tucson already hosts the largest AMD-based AI deployment in North America” TensorWave and TECfusions joint release
- Announced capacity
- 14.4 MW. “14.4 MW which was delivered to TensorWave in under four months in 2025” TECfusions and TensorWave release
- Stated timing
- “The deployments, scheduled for delivery in the first half of 2026” Source
| Date | Record | What it shows | Source |
|---|---|---|---|
| May 15, 2025 | OccupancyPima County Development Services · P25BP03834 | Tenant improvement for TECfusions Data Center Phase 1, 25,825 square feet, including Data Hall A.Status: Certificate of occupancy issued | Record |
| July 21, 2025 | OccupancyPima County Development Services · P25BP05446 | Tenant improvement for TECfusions Data Center Phase 2, 71,127 square feet.Status: Certificate of occupancy issued | Record |
| April 13, 2026 | OccupancyPima County Development Services · P26BP02485 | Shell improvement for TECfusions Data Center Phase 3, 14,478 square feet.Status: Certificate of occupancy issued | Record |
| May 20, 2026 | Building permitPima County Development Services · P26BP03357 | Tenant improvement permit for TECfusions Data Center Phase 4, 17,388 square feet.Status: Issued | Record |
Unverified: not found in online records
- County records do not show which phases or megawatts serve TensorWave.
- No air permit or utility service record was found online.

