Recall.ai nearly doubles San Francisco office footprint with new lease at 475 Brannan Street in SoMa
An AI startup expands in a fast-changing office market
Recall.ai, an artificial intelligence startup focused on capturing and processing data from meetings and conversations, has signed a new San Francisco office lease that roughly doubles its local footprint. The company took about 15,000 square feet on the second floor of 475 Brannan St. in the South of Market (SoMa) area, and is expected to move in early next year.
The transaction adds to a series of office commitments by AI-focused firms that have become a central source of demand in San Francisco’s post-pandemic commercial real estate landscape. While overall vacancy remains elevated by historic standards, leasing momentum has increasingly concentrated in select neighborhoods and buildings that offer large floor plates, modernized interiors, and pricing more competitive than top-tier Financial District towers.
Why 475 Brannan fits the current wave of demand
The 475 Brannan building sits near the border of SoMa and Mission Bay, a corridor that has attracted technology tenants seeking access to transit, highways, and a growing cluster of employers near Oracle Park and the Chase Center area. The property totals roughly 258,000 square feet and dates to 1908, later renovated and expanded to support modern office use.
For many growing AI companies, the priority is securing space that can support rapid team expansion without forcing a near-term relocation. Industry leasing activity has shown a shift from smaller suites toward larger requirements as startups mature, raise additional capital, and add headcount—often favoring flexible layouts that accommodate engineering, product, and go-to-market teams working in closer proximity.
Funding and business context
Recall.ai’s office move follows a $38 million funding round completed in the fall. The company has described its product focus as enabling new “conversation data capture” capabilities for customers, and has indicated it serves roughly 2,000 organizations. The company has also stated that demand is rising for tools that make spoken workplace context usable in AI-enabled workflows, reflecting broader interest in applying machine learning to unstructured communication.
How this lease fits San Francisco’s broader office reset
AI companies have been among the most active office tenants in San Francisco over the past two years, signing leases that range from modest expansions to some of the city’s largest recent deals. At the same time, average lease sizes across the market have remained below pre-pandemic norms, underscoring a recovery that is uneven and still constrained by uncertainty around long-term office utilization.
Tenant trend: AI-driven firms are increasingly taking 15,000–20,000 square feet rather than smaller startup-style suites.
Location pattern: SoMa and adjacent districts are benefiting from relatively lower rents and tech-oriented building stock.
Market reality: Elevated citywide vacancy persists even as leasing improves in select submarkets.
In the current cycle, office expansions by AI startups are emerging as one of the clearest indicators of where San Francisco’s next round of downtown-adjacent activity may concentrate.