Sierra

Sierra builds a conversational AI platform for businesses to create, deploy and optimize customer-facing AI agents. The platform includes Ghostwriter, which builds agents from uploaded SOPs, transcripts and plain-English goals, and tools for monitoring, analytics and experiments. A single agent can be deployed across chat, SMS, WhatsApp, email, voice and ChatGPT.

Customers are businesses in service, retail and subscription sectors that use the agents for support, account help, bookings and follow-ups. The company states that it uses outcome-based pricing, so customers pay for the value the agents deliver. Customer stories on the website include ADT, Casper, Clear, Minted, Kraken, Safelite and RunBuggy.

Sierra was founded in 2023 by Bret Taylor and Clay Bavor and is headquartered in San Francisco. Its offices are listed in New York, Atlanta, London, Singapore, Tokyo, Paris, Madrid, Toronto and San Francisco. Current job listings include software engineers, agent strategists, product managers and enterprise sales roles, many based in London, Madrid, Paris and Munich.

Product: Sierra conversational AI platform for building, deploying and optimizing customer-facing AI agents, including the Ghostwriter agent-building tool.