Sierra is the platform that helps businesses build better, more human customer experiences with AI. Founded by industry veterans Bret Taylor and Clay Bavor, Sierra enables businesses to deploy autonomous AI agents that delight and support customers in the moments that matter.

Unlike chatbots, IVR systems, or simple rule-based agents, our AI agents integrate with key systems and provide fast, personalized, always-on support on any channel, improving customer satisfaction and operational efficiency. From reporting a lost card, disputing a transaction to managing an account—Sierra AI agents act as brand ambassadors and are empowered to take action on behalf of your customers and business.

Built on a constellation of AI models, our AI agents are exceptionally performant and reliable, maintaining the highest industry standards of trust, safety, and compliance. And, Sierra AI agents are continuously learning and improving, with built-in quality assurance, auditing, performance management, and reporting.

Trusted by brands like SoFi, Brex, ramp, SiriusXM, and ADT, Sierra’s flexible model meets customers where they are—offering everything from enterprise-ready, fully supported deployments to build-your-own no-code journeys. Both CX, IT, and Engineering teams can move fast, choosing the right approach to fit their evolving needs.