Financial District/South Beach · Building 31 of 52 by AI share

AI tenants hold 15% of 181 Fremont Street by observed square feet

Perplexity, Mercor, Anthropic hold 107,833 square feet on record. DataSF lists the building at 706,617.

AI share of building SF: 15%
AI square feet observed: 107,833
Building square feet (DataSF): 706,617
AI tenants, October 2026: 3

Half

Tenants

AI tenants at 181 Fremont Street, October 2026

Current AI tenants
Company	Tier	Recorded from	Observed SF	Type	Sources
Perplexity	AI-native applications	March 2026	80,561	Sublease	Link
Mercor	AI infrastructure and tooling	November 2023	27,272	Sublease	Link 1 Link 2
Anthropic	Frontier and model labs	October 2026	No public figure

Source: DataSF business registrations and DBI permits, SEC filings, press. Observed square feet only. Building square feet from the DataSF property record. "Recorded from" is the date of the registration or the press report of a signing, not a move-in date. See the building on the map.

Former AI tenants
Company	Recorded from	Ended
Town	September 2024	January 2025

Deals

Leases and subleases reported here

Perplexity took 80,561 square feet that Meta Platforms held (sublease, March 2026). Source
Mercor took 27,272 square feet that Meta Platforms held (sublease, June 2026). Source

Deals with public square feet at 181 Fremont Street
Reported	Company	Type	SF	Source
March 2026	Perplexity	Sublease	80,561	Link
June 2026	Mercor	Sublease	27,272	Link

Nearby

Other measured buildings in Financial District/South Beach

500 Howard Street: Anthropic, 85% AI
333 Brannan Street: Cognition, 81% AI
300 Howard Street: Anthropic, 77% AI
634 2nd Street: Glean, 61% AI
340 Bryant Street: Flux, 58% AI
201 3rd Street: Harvey, Mechanize, Inc., 37% AI

Part of San Francisco AI tenants, a register of 223 AI companies at 271 locations built from public records. See all majority-AI buildings and the methodology.

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