RingCentral, Inc. is an American publicly traded provider of cloud-based communication and collaboration products and services for businesses.
CEO Vlad Shmunis and CTO Vlad Vendrow founded the company in 1999. Investors included Doug Leone, Sequoia Capital, David Weiden, Khosla Ventures, Rob Theis, Scale Venture Partners, Bobby Yerramilli-Rao, Hermes Growth Partners and DAG Ventures. It completed its IPO in 2013.