RingCentral, Inc.

RingCentral provides cloud-based phone, messaging, and video communication systems for businesses of all sizes. Their main product, RingCentral, handles business calls, text messages, video meetings, and team collaboration in one platform. They also offer contact center software that helps customer service teams manage customer interactions across phone, email, chat, and other channels, often with AI tools that handle routine calls automatically or assist human agents. The company serves healthcare, retail, financial services, government agencies, and many other industries.