
A fashion network gave him a scaling problem. A transatlantic move gave him the room to solve it. Now the self-taught programmer behind Stream is building the plumbing for conversations most users never think about.
Thomas Cottereau is the CEO and co-founder of SightCall, a San Francisco-based platform for AR-powered live visual assistance used by enterprises in insurance, manufacturing, healthcare and utilities. A telecom engineer who helped build early internet infrastructure at UUNET and MCI WorldCom, he started SightCall in 2008 in a friend's basement and spent five years turning a video prototype into an enterprise SaaS platform, later moving his family to the Bay Area and winning HP as an early flagship customer. Under his leadership SightCall raised roughly $58 million and grew into a global company serving customers across every continent.
A conversation can survive a bad picture. A badly timed silence is harder. Agora has spent years working on that gap - and now it is selling the same skill to voice AI.
Bin 'Tony' Zhao is the founder, CEO, and Chairman of Agora (NASDAQ: API), the Real-Time Engagement Platform-as-a-Service he built after 20 years on the frontlines of internet voice and video - from being a founding engineer at WebEx to CTO of JOYY with 300 million users. Founded in 2013, Agora now powers over 80 billion minutes of real-time engagement monthly, supplied the audio backbone for Clubhouse's viral moment, and in 2025 launched a Conversational AI Engine bridging human voice and large language models.