What Sierra does
Sierra (sierra.ai) builds an enterprise “customer-experience agent” platform designed for deploying and continuously improving AI agents that handle customer interactions across business systems and channels. The company positions its platform—"Agent OS"—as the underlying system that lets customer experience teams (and developers) move from conversation-based experiences to end-to-end outcomes, with an emphasis on reliability, testing/quality controls, and observability for ongoing improvement. Sierra’s products include tools aimed at building agents (including “agent-building” workflows) and tools aimed at analyzing agent performance over time so teams can diagnose issues and iterate quickly.
Sierra targets large, regulated enterprises and customer service organizations that need higher-assurance agent behavior (e.g., safety, governance, and compliance controls) rather than one-off chat experiences. Its customer stories emphasize production deployments in support, member services, and sales operations, and Sierra’s public posts also highlight expansion to voice and integrations that connect agents to business outcomes (for example, linking to external systems and enabling actions beyond answering questions).