Sierra acquires Takeoff, the long-horizon AI agent platform
What's the deal? On 23 July 2026, Sierra — the enterprise AI agent company founded by Bret Taylor and Clay Bavor — announced it is acquiring TakeoffDealroom has a profile for this one. Try Dealroom →, which Taylor described as "the leader in long-horizon AI agents." Financial terms were not disclosed.
Who is Takeoff? Founded in 2025 and based in the San Francisco Bay Area by Aakash ThumatyDealroom has a profile for this one. Try Dealroom → (CEO), Takeoff builds fully autonomous agents that perform end-to-end jobs across voice, SMS, email, portals and APIs. Its Takeoff Runtime handles work spanning days to weeks — with lead-level memory, decision logic and embedded compliance guardrails — with early deployments in consumer lending and mortgage workflows. In less than a year the company went from zero revenue to multiple seven-figure contracts, and had raised a $15M round from Matrix and Lachy Groom in June 2026.
Why it matters. The deal continues Sierra's rapid M&A run — following Opera Tech, Receptive AI and Fragment earlier in 2026 — as it broadens beyond customer-service agents into autonomous, long-horizon work. Takeoff's team joins Sierra.
Read more: Bret Taylor (X) · Takeoff blog · The Information
