Bret TaylorBret is Co-Founder of Sierra. Most recently, he served as Co-CEO of Salesforce. Prior to Salesforce, Bret founded Quip and was CTO of Facebook. He started his career at Google, where he co-created Google Maps. Bret serves on the board of OpenAI.
Introducing Voice PersonasWhat an agent does and how it expresses itself are two different things. Today, we’re launching Voice Personas so you can design both.2026년 8월 7일
The next Horizon in agentsHorizon agents orchestrate outbound and inbound interactions over days or weeks — not just single conversations. A context engine and long-horizon planning turn every interaction into a compounding advantage, so your agents get smarter as your customer relationships deepen. It's Sierra's outcomes-based model at scale: you pay for results, not tokens.2026년 7월 16일
Certified FedRAMP® HighWe're excited to share that Sierra has been certified FedRAMP® High — the standard for cloud companies working with U.S. federal agencies.2026년 6월 10일
Better customer experiences. Built on SierraWe’re raising $950 million from new and existing investors, at a valuation of over $15 billion.2026년 5월 4일
Sierra acquires Fragment in FranceWe are excited to announce the acquisition of Paris-based Fragment, which helps businesses scale their operations using AI, freeing up employees to focus on higher value work. 2026년 4월 23일
Eric Eyken-Sluyters joins Sierra as President of Field OperationsWe are excited to announce that Eric Eyken-Sluyters will be joining Sierra to lead our global Sales, Sales Engineering, and Partnerships teams.2026년 4월 1일
Sierra acquires Opera Tech in JapanToday, we’re announcing that Sierra has acquired Opera Tech, a Tokyo-based enterprise AI startup.2026년 3월 27일
Agents as a ServiceSierra 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.2026년 3월 25일
Year two in reviewSierra 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.2026년 2월 6일
Sierra and Stellarus: Advancing a new model for AI-powered healthcare member experienceSierra is partnering with Stellarus to help health plans like Blue Shield of California deploy AI agents.2026년 1월 12일
Sierra hits $100M ARR milestone in 7 quartersSierra just hit $100M in ARR — seven quarters after we launched in February 2024. That’s a heck of a lot quicker than we expected, and makes Sierra one of the fastest-growing enterprise software companies in history. 2025년 11월 21일
Change agents: SafeliteHow Safelite is transforming auto glass services for customers and insurance partners.2025년 11월 18일
Sierra Agent OS 2.0: from answers to memory and actionAt 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.2025년 11월 5일
There's an agent for that, and it runs on Sierra Today, we’re announcing that we’ve raised $350M additional capital at a valuation of $10B, led by Greenoaks, which is doubling down on Sierra.2025년 9월 4일
Calling new grads: APX year 2Are you a college senior or recent graduate? If you’re driven to turn AI theory into practice, make an impact, and learn from some of the best in our industry, we’d love to build with you.2025년 9월 2일
Serving customer experience and engineering teams—all from one platformSierra’s Agent OS is the only platform that supports both no code and programmatic agent development. Our unique approach enables companies to mix and match—choosing the right approach for their business needs, and scaling their agent development as those needs evolve. 2025년 5월 21일
Sierra expands to New YorkWe’re excited to share that Sierra is opening a New York office, and we’re hiring across agent development and sales.2025년 5월 7일
Change agents: MintedSince we first started working together last year, AI has become central to Minted’s long-term innovation strategy—with information from AI conversations helping to inform their marketing, engineering, and product teams, as well as solving real customer needs with care and creativity.2025년 4월 24일
Sierra acquires Receptive AIWe want to ensure that Sierra has the best voice capabilities, and it’s why we’re excited to have acquired Receptive AI. Their voice technology is already integrated into Sierra, enabling companies to build AI agents once and deploy them across any channel. 2025년 3월 26일
Announcing the Sierra APX programThe APX program is an 18-month rotational program that gives new graduates in computer science or a related field the opportunity to work closely with our customers, building AI agents as both an Agent Engineer and an Agent Product Manager.2024년 11월 12일
Sierra speaksVoice is here. Sierra's AI agents can now engage consumers with rich, natural conversations over the phone—no wait times, no frustration. Learn how this new capability is reshaping the future of customer service. 2024년 10월 9일
The Agent Development Life CycleAn autonomous AI agent is a new type of software that requires a new approach to development. Sierra has developed a novel, integrated approach to developing agents, from development to testing and release management. We call this the Agent Development Life Cycle.2024년 6월 3일
The Guide to AI AgentsAI agents are autonomous software systems that can reason, make decisions, and pursue goals with creativity and flexibility. They’ll soon be everywhere, helping consumers, employees, and businesses alike.2024년 5월 23일
