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 achieves AIUC-1 certification

Sierra is now AIUC-1 certified, following an independent audit by Schellman and extensive testing by the Artificial Intelligence Underwriting Company (AIUC).

2026年9月17日

Julia Brau Donnelly joins Sierra as Chief Financial Officer

We are excited to announce that Julia Brau Donnelly will be joining Sierra as our Chief Financial Officer.

2026年8月31日

Sierra launches in Korea on a blurred blue and red background

Sophisticated agents for the most demanding companies: Sierra launches in Korea

We are excited to announce that we are opening an office in Seoul. South Korea is home to some of the world’s most complex businesses, across the largest industries, and we’re looking forward to serving them.

2026年8月25日

Building in Germany, Austria and Switzerland

We're excited to share that we are opening an office in Munich to serve companies across Germany, Austria and Switzerland.

2026年8月14日

Our partnership with Plaid on a blurred purple and blue background

Plaid and Sierra partner to move AI agents from conversations to business outcomes

Through our partnership, customers can now securely connect their bank accounts with Plaid directly within Sierra’s agent.

2026年8月3日

Text: Sierra acquires Takeoff, over an abstract red background

We’re excited to share that Sierra is acquiring Takeoff

Since the beginning of this year, Takeoff has gone from $0 in ARR to nearly 8 figures of revenue as of earlier this month. We’re energized to have the opportunity to accelerate and scale our platform with Sierra’s partnership and trust around the world.

2026年7月23日

Our partnership with SoftBank Corp. on a blurred red background

ソフトバンク株式会社とのパートナーシップを発表

この度、日本を代表する通信・IT企業であるソフトバンク株式会社とのパートナーシップを発表できることを、大変嬉しく思います。

2026年7月14日

Discovering what’s possible with AI for CX

Every CX leader right now is being asked the same question: What are you doing with AI? This series shares some of the earliest answers from the teams figuring it out.

2026年6月12日

Certified FedRAMP® High

We're excited to share that Sierra has been certified FedRAMP® High — the standard for cloud companies working with U.S. federal agencies.

2026年6月10日

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