Sierra ブログ

2026年3月27日

Sierra、日本発のAI企業「OPERA TECH」を買収

本日、Sierraは東京を拠点とするエンタープライズAI企業、株式会社OPERA TECHを買収したことを発表いたします。

Text: Sierra acquires Opera Tech in Japan.

2025年11月5日

Sierra Agent OS 2.0: from answers to memory and action

At Sierra Summit, we unveiled the future of AI agents: a single agent that works across every channel, learns from every interaction, and builds real customer relationships. With eight new products, including Agent Studio 2.0 and the Agent Data Platform, Sierra is turning the promise of AI-powered customer experience into reality.

2026年3月25日

Agents as a Service

Sierra is reimagining software for the agent era—where you simply describe the outcome, and intelligent agents build, execute, and continuously improve the work for you. Meet Ghostwriter, the agent that creates and optimizes other agents, turning your ideas into production-ready customer experiences without clicks, code, or complexity.

2026年2月6日

Year two in review

Sierra is heading into year three with over $150M in ARR, powered by rapid adoption from some of the world’s largest companies. The growth reflects a simple idea: when AI is built around real jobs to be done (not experiments), even the biggest enterprises can see meaningful impact fast.

White text "Year two" on a grainy background with diagonal orange, yellow, and blue color gradients.

2025年11月5日

Introducing Agent Data Platform

Sierra’s first-of-its-kind Agent Data Platform (ADP) gives agents memory, context, and intelligence — turning every interaction into a human, personalized experience. Powered by Agent OS, ADP helps companies move from answering questions to anticipating needs.

Sierra inducted into JPMorganChase Hall of Innovation

Sierra today announced its induction into JPMorganChase’s Hall of Innovation. The award was presented to Bret Taylor, Co-founder and CEO of Sierra, at J.P. Morgan’s 18th annual Technology Innovation Symposium.

2026年11月5日

Sierra acquires Anon

We’re excited to share that Anon is joining Sierra.

2026年11月5日

Kyle Randolph joins Sierra as Chief Information Security Officer

We’re very excited to welcome our Chief Information Security Officer, Kyle Randolph.

2026年11月2日

Our customers’ ambition is accelerating our growth

We launched Sierra just over two and a half years ago. This week, we hit $400M+ in ARR, adding $150M+ in ARR in Q3 alone. That’s more ARR in one quarter than we generated all of last year.

2026年10月30日

Dr. Mitesh Patel joins Sierra as Head of Clinical

We are excited to announce that Dr. Mitesh Patel is joining Sierra as our Head of Clinical.

2026年10月29日

Sierra is on Google Cloud Marketplace

Sierra is now available on Google Cloud Marketplace, making it easier for companies to build with Sierra using their existing Google Cloud commitments.

2026年10月26日

Our partnership with Stripe on a blurred purple and blue background

From conversation to payment: Sierra and Stripe

Our partnership with Stripe allows customers to have a conversation, pay, and get their receipt all on the same call.

2026年10月20日

Sharing a draft of Personal Agent Protocol

Today we’re publishing a draft of Personal Agent Protocol, known as Poppy, and announcing additional 35 design partners.

2026年10月9日

"Sierra Summit 2026 Recap" on a blurry blue background

Sierra Summit 2026: Bring us your hardest problems

AI is moving faster than anyone predicted. At Sierra Summit, we shared how Sierra helps companies stay on the frontier, stay in control as personal agents arrive, and turn customer context into a lasting advantage.

2026年10月6日

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