Clay Bavor

Clay is Co-Founder of Sierra. Previously, Clay spent 18 years at Google, where he most recently led Google Labs. Earlier, he started and led Google’s AR/VR effort, Project Starline, and Google Lens. Before that, Clay led the product and design teams for Google Workspace.

Publicaciones de Clay Bavor

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.

31 de agosto de 2026

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.

25 de agosto de 2026

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.

14 de agosto de 2026

The word "Personas" on a blurred red, yellow and pink background

Introducing Voice Personas

What an agent does and how it expresses itself are two different things. Today, we’re launching Voice Personas so you can design both.

7 de agosto de 2026

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.

3 de agosto de 2026

The word "Horizon" on a blurred blue background

The next Horizon in agents

Horizon 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.

16 de julio de 2026

Our partnership with SoftBank Corp. on a blurred red background

Announcing our partnership with SoftBank Corp.

We are excited to announce our partnership with SoftBank Corp., a leading Japan-based telecommunications and IT operator.

14 de julio de 2026

Sierra Lands in The 6

We're excited to share that Sierra has opened an office in Toronto — now with about a dozen employees, and a growing number of customers.

21 de mayo de 2026

Better customer experiences. Built on Sierra

We’re raising $950 million from new and existing investors, at a valuation of over $15 billion.

4 de mayo de 2026

Sierra acquires Fragment in France

We 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.

23 de abril de 2026

Eric Eyken-Sluyters joins Sierra as President of Field Operations

We are excited to announce that Eric Eyken-Sluyters will be joining Sierra to lead our global Sales, Sales Engineering, and Partnerships teams.

1 de abril de 2026

Sierra acquires Opera Tech in Japan

Today, we’re announcing that Sierra has acquired Opera Tech, a Tokyo-based enterprise AI startup.

27 de marzo de 2026

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.

25 de marzo de 2026

Text that reads "Building in Australia" on a blurred orange and brown background.

No worries vs please hold: Sierra comes to Australia

We're excited to share that we are opening an office in Sydney, Australia, where we'll partner with leading companies to deliver faster, more human customer experiences.

23 de marzo de 2026

White text "Construyendo en España" (Building in Spain) on a blurred red and white background.

Todo sobre el agente: Sierra desembarca en España

Sierra ya trabaja con algunas de las mayores empresas de España para crear experiencias más humanas e inteligentes con IA. Nos entusiasma seguir construyendo relaciones más sólidas con la apertura de nuestra oficina en Madrid.

12 de marzo de 2026

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

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.

6 de febrero de 2026

Building in France

Sierra is expanding to France, where we'll help leading companies—from luxury houses to aerospace innovators—deliver exceptional customer experiences with AI.

15 de diciembre de 2025

Aspiring to omotenashi: Sierra launches in Japan

We're excited to share that we're opening a Tokyo office, and SoftBank Vision Fund 2 has invested in Sierra.

4 de diciembre de 2025

Sierra hits $100M ARR milestone in 7 quarters

Sierra 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.

21 de noviembre de 2025

Change agents: Redfin

Redfin launches first of its kind AI conversational search experience

13 de noviembre de 2025

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.

5 de noviembre de 2025

Change agents: Funnel Leasing

Transforming the renter experience: Funnel’s human-first approach to AI

4 de noviembre de 2025

Singapore, here we come

Sierra is expanding to Southeast Asia with a new Singapore office, strengthening our commitment to helping businesses across the region deliver more human customer experiences with AI.

3 de noviembre de 2025

Introducing Sierra Summit 2025: the future of AI-powered customer experiences

Big things are coming at Sierra Summit 2025 — our first customer conference — where we’ll reveal new AI innovations and hear from leaders shaping how businesses grow through better, more human customer experiences. Request your spot today.

14 de octubre de 2025

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.

4 de septiembre de 2025

Gradient background with graduation cap icon

Calling new grads: APX year 2

Are 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.

2 de septiembre de 2025

Change agents: Brex

By building its customer agent with Sierra, Brex has accelerated service by 90%, saved customers over 15,000 hours a year, and empowered both technical and non-technical teams to scale AI across the business.

19 de agosto de 2025

Serving customer experience and engineering teams—all from one platform

Sierra’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.

21 de mayo de 2025

Sierra expands to New York

We’re excited to share that Sierra is opening a New York office, and we’re hiring across agent development and sales.

7 de mayo de 2025

London calling

We are excited to announce that Suveer Kothari will be joining Sierra as head of our new(ish) London office, which serves companies across the UK and Europe.

15 de abril de 2025

Sierra acquires Receptive AI

We 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.

26 de marzo de 2025

Announcing the Sierra APX program

The 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.

12 de noviembre de 2024

Sierra speaks

Voice 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.

9 de octubre de 2024

The Agent Development Life Cycle

An 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.

3 de junio de 2024

The Guide to AI Agents

AI 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.

23 de mayo de 2024

Meet Sierra, the conversational AI platform for businesses

13 de febrero de 2024

Clay Bavor

Publicaciones de Clay Bavor

Julia Brau Donnelly joins Sierra as Chief Financial Officer

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