Sierra Introduces Personal Agent Protocol With Meta and Partners
Oct 07, 2026
Agent Development tools
Sierra Technologies Nears $350 Million Funding Round
Sep 4, 2025
Sierra Technologies Inc., an AI startup, is close to securing $350 million in funding, valuing the company at $10 billion. The round is led by Greenoaks Capital.
Sierra Technologies Inc., an AI startup specializing in custom AI agents for enterprise customer service, is nearing the completion of a $350 million funding round. This investment is expected to value the company at $10 billion.
The funding round is led by Greenoaks Capital, which also led Sierra's previous $175 million round at a $4.5 billion valuation. Founded in 2023 by Bret Taylor, former co-CEO of Salesforce and current OpenAI chair, and Clay Bavor, a former Google executive, Sierra has quickly gained traction in the AI industry.
Sierra's platform offers a software toolkit, known as Agent SDK, which allows companies to create AI agents with features like web search and customer support processing. The company also provides Agent Studio, enabling business users to customize agents without coding.
Sierra is on track to exceed $100 million in enterprise annual recurring revenue, with a customer base that includes numerous large enterprises. The company reports that 15% of its clients generate over $10 billion in annual revenue, while about half have revenues exceeding $1 billion.
We hope you enjoyed this article
Consider subscribing to one of our newsletters like Enterprise AI Brief, AI Funding Brief or Daily AI Brief.
Also, consider following us on social media:
More from Enterprise
Oct 16 McGraw Hill Adds AI Study Tools to Connect Oct 16 RapidCanvas Raises $29 Million to Expand Enterprise AI Platform Oct 16 Goodweek Raises $12 Million for AI Management Platform Oct 16 ALTOUR Unveils AI Platform for Corporate Travel Decisions Oct 16 BOC Group Adds AI Assistant to ADOIT 21More from Funding
Oct 16 RapidCanvas Raises $29 Million to Expand Enterprise AI Platform Oct 16 KBRA Rated Anthropic BB+ Before $35 Billion Chip Financing Oct 16 Goodweek Raises $12 Million for AI Management Platform Oct 16 Intuit Agrees to Acquire AI Billing Startup Sequence for Reported $200 Million Oct 16 Matters Raises $5 Million to Build AI Consumer BankFree newsletter
AI Funding Brief
Market report
.png)
2025 Generative AI in Professional Services Report
Thomson Reuters
This report by Thomson Reuters explores the integration and impact of generative AI technologies, such as ChatGPT and Microsoft Copilot, within the professional services sector. It highlights the growing adoption of GenAI tools across industries like legal, tax, accounting, and government, and discusses the challenges and opportunities these technologies present. The report also examines professionals' perceptions of GenAI and the need for strategic integration to maximize its value.
Read moreYou may also like
Arena Raises $200 Million at $3.1 Billion Valuation
Oct 09, 2026
Funding
EliseAI raises $350 million at $4 billion valuation
Sep 30, 2026
Funding
OpenAI Seeks $30 Billion at $1.4 Trillion Valuation
Sep 30, 2026
Funding
Datasea Begins AI Marketing Services Under Five Customer Agreements
Sep 17, 2026
Marketing AI
Rein Security raises $25 million for AI agent security
Oct 08, 2026
Funding
Free, six days a week
Daily AI Brief: the AI news that matters, in your inbox.