Cresta

Cresta was founded in 2017 as a spinout of Stanford's AI Lab by S. Zayd Enam (a Stanford AI Lab PhD student and UC Berkeley EECS graduate), together with Sebastian Thrun (Stanford AI Lab director, Google X/Waymo founder, and Udacity co-founder) and Tim Shi (a Stanford-trained AI researcher and former OpenAI technical staff member), with Crunchbase additionally crediting Andre Esteva and Shan Huang among the founding team. The company's founding thesis was that transformer-based, real-time NLP could analyze live customer conversations and coach human agents to perform like a company's best expert on their very first day. Cresta deployed an early transformer-based Agent Assist product at Intuit in 2018 and emerged from stealth in February 2020 with $21 million in seed/Series A financing led by Greylock Partners and Andreessen Horowitz, with participation from angel investors Andy Bechtolsheim, Mark Leslie, and Vivi Nevo. Enam served as founder and CEO through this period.

The company scaled quickly during the pandemic-era boom in remote customer service and generative AI. It raised a $50 million Series B in March 2021 led by Sequoia Capital (with Greylock, a16z, Allen & Company, and Porsche Ventures participating), bringing Sequoia partner Carl Eschenbach onto the board. In March 2022, Cresta closed an $80 million Series C led by Tiger Global at a reported $1.6 billion post-money valuation, with new strategic backing from Genesys, Five9, J.P. Morgan, CarMax, and Zoom alongside returning investors Sequoia, Greylock, a16z, and Porsche. Around this time, Ping Wu — a co-founder of Google's Contact Center AI (CCAI) business — joined Cresta as VP of Engineering and Product; she was subsequently elevated to CEO (by 2023), succeeding founder Zayd Enam, who transitioned out of an operating role in 2023 and later founded a new venture, Enam Co., in January 2024.

Under Ping Wu, Cresta broadened from a single "Agent Assist" coaching tool into a full-stack, human-and-AI-agent customer experience platform, adding autonomous generative AI voice/chat agents, conversation intelligence and analytics (Insights, AI Analyst, Quality Management), and developer tooling for building and testing AI agents (Conductor, Automation Discovery, Synthetic Customers, Agent Operations Center). The company achieved ISO/IEC 42001 AI-management certification in January 2025 (a first among contact-center AI vendors) and was named a Leader in Forrester's Wave for Conversation Intelligence Solutions in Contact Centers (Q2 2025), scoring highest in Current Offering. In November 2024, Cresta closed a $125 million Series D led by World Innovation Lab (WiL) and the Qatar Investment Authority (QIA), with new investors Accenture, EnvisionX Capital, LG Technology Ventures, Qualcomm Ventures, and Workday Ventures, and continued participation from a16z, Greylock, J.P. Morgan, Sequoia, and Tiger Global — bringing total funding to roughly $276 million. The company disclosed that ARR had nearly quadrupled over the prior two years.

Business model

B2B SaaS / enterprise software sold via subscription and usage-based licensing to large contact-center operators

Enterprise SaaS subscription plus AI-agent usage-based pricing (per-conversation/per-seat)