RingCentral, Inc. provides software-as-a-service solutions for business communications primarily in the United States. The company's services include RingCentral Office, a multi-location, multi-user, enterprise-grade communications solution that enables employees to communicate through voice, text, and fax channels on smartphones, tablets, PCs, and desk phones for businesses that require a communications solution; RingCentral Professional, an inbound call routing service with text and fax capabilities for smaller businesses; and RingCentral Fax solution that provides Internet fax capabilities, which allow businesses to send and receive fax documents without the need for a fax machine. It serves advertising, consulting, finance, healthcare, legal, real estate, retail, and technology industries through its direct sales representatives and resellers in the United States and internationally. The company was founded in 1999 and is headquartered in San Mateo, California.