Bret Taylor
Co-founder of Sierra, which builds customer-facing AI agents; former Salesforce co-CEO and Facebook CTO
Bret Taylor is a co-founder of Sierra, a company that builds AI agents businesses use to serve their customers. Taylor previously served as co-CEO of Salesforce, founded Quip, and was CTO of Facebook, after starting a career at Google, where Taylor co-created Google Maps. Taylor also serves on the board of OpenAI.1
Career
Taylor began at Google, where Taylor co-created Google Maps, and later served as CTO of Facebook. Taylor then founded the productivity company Quip and went on to serve as co-CEO of Salesforce.1
Taylor and Clay Bavor, who first met while working together at Google, co-founded Sierra to build AI agents for customer service and other customer conversations.1
Products and projects
Sierra builds AI agents that businesses deploy to talk with their customers. In a November 2025 post co-authored by Bret Taylor and Clay Bavor, Sierra described Agent OS 2.0 and eight new products launched at Sierra Summit, its first customer conference, including a move from separate channels toward a single agent.2
In September 2026 the co-founders wrote about Ghostwriter, Sierra's tool for building and deploying agents from prompts, becoming a proactive teammate. In October 2026 they announced Personal Agent Protocol, an open standard Meta and Sierra are developing with industry partners to define how personal agents authenticate and interact with businesses.34
Work
Google Maps
Co-created Google Maps early in a career that began at Google, according to Sierra's founder biography.1
Personal Agent Protocol (external site: sierra.ai)
Co-author of the October 2026 announcement of an open standard, developed by Meta and Sierra with industry partners, for how personal agents interact with businesses.4
Career timeline
Nov 5, 2025
Co-authored the announcement of Sierra Agent OS 2.0 and new products from Sierra Summit.2
Sep 28, 2026
Co-authored a post on Ghostwriter becoming a proactive teammate for agent builders.3
Oct 6, 2026
Co-announced Personal Agent Protocol, an open standard for how personal agents interact with businesses.4
Other documented roles
Roles the sources document but that are not confirmed as current.
Related people
More sourced profiles at the same organization, in the same field, or from the same school.
- Clay BavorAlso at Sierra
- Adam FourneyAgents
- Abigail SeeAlso from Stanford
- Aldehir RojasAgents
- Abubakar AbidAlso from Stanford
- Alex FinnAgents
- Albert GuAlso from Stanford
- Alexander ToshevAgents
- Andrej KarpathyAlso from Stanford
- Amjad MasadAgents
- Andrew NgAlso from Stanford
- Andrew BosworthAgents
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