AI infrastructure and tooling
Scale AI holds 180,000 leased square feet in San Francisco on the public record
Scale AI has 2 San Francisco locations as of October 2026, 2 of them in South of Market. 1 has a published size; the other 1 count as zero, so the total is a minimum. Rank 7 of 47 by observed square feet.
- Leased square feet where public
- 180,000
- Locations, October 2026
- 2
- First recorded presence
- October 2021
- Rank by observed SF
- 7 of 47
Footprint
Observed square feet held, month by month
The line steps up when a deal is reported and steps down when a location's registration closes. The first deal with a public figure is a sublease of 180,000 square feet at 650 Townsend Street, reported in December 2024.
Source: DataSF business registrations and DBI permits, SEC filings, press. Observed square feet only. Logos are trademarks of their owners.
View data table
| From | Observed SF |
|---|---|
| January 2019 | 0 |
| December 2024 | 180,000 |
Locations
Scale AI’s San Francisco locations, October 2026
| Address | Neighborhood | Recorded from | Observed SF | Type | Map | Sources |
|---|---|---|---|---|---|---|
| 650 Townsend Street | South of Market | July 2024 | 180,000 | Sublease | On the map | Link |
| 155 5th Street | South of Market | October 2021 | No public figure | On the map | Link |
Source: DataSF business registrations and DBI permits, SEC filings, press. Observed square feet only. "Recorded from" is the date of the registration or the press report of a signing, not a move-in date.
| Address | Recorded from | Ended | Observed SF |
|---|---|---|---|
| 303 2nd Street (South Tower) | June 2020 | June 2025 | |
| 398 11th Street | May 2016 | December 2019 | |
| 303 2nd Street | May 2016 | March 2021 |
Lease tape
Leases and subleases with public square feet
Square feet as each source states them. An expansion that restates a location's total shows as a second row at the same address.
| Reported | Address | Type | SF | Prior occupant | Source |
|---|---|---|---|---|---|
| December 2024 | 650 Townsend Street | Sublease | 180,000 | Airbnb | Link |
Who replaced whom
Space that changed hands
- Scale AI took 180,000 square feet at 650 Townsend Street that Airbnb held (sublease, December 2024). Source
Part of San Francisco AI tenants, a register of 223 AI companies at 271 locations built from public records. See the full leaderboard, the interactive map and the methodology.
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Company names and logos are trademarks of their owners and are shown only to identify them.