RingCentral, Inc. is an American provider of cloud-based communication and collaboration products and services.[4][5][6][7][8] The company is headquartered in Belmont, California with other US offices in Denver, Charlotte, and Dallas. It has international offices in Canada, the UK, France, Bulgaria, Spain, China, India, the Netherlands, Israel, Australia, South Korea, Switzerland, Germany, Ireland, and the Philippines.[9]
CEO Vlad Shmunis and CTO Vlad Vendrow founded the company in 1999.[10][11] Investors included Doug Leone, Sequoia Capital, Khosla Ventures, Scale Venture Partners, and DAG Ventures.[12][13][14] It completed its IPO in 2013.[15][16]
RingCentral was founded by Vlad Shmunis and Vlad Vendrow.[17] RingZero was focused on small business communications on Microsoft Windows.[18]
RingCentral received its first round of venture capital investment in 2006.[18] In 2011, it added Cisco and Silicon Valley Bank as investors and had, to date, secured $45 million in capital investment.[19] It completed its IPO on September 27, 2013,[15][16] and completed a follow-on offering in March 2014 that raised $39.8 million.[20]
In February 2020, RingCentral and Avaya unveiled the Avaya Cloud Office application.[21][22]
In April 2020, RingCentral launched RingCentral Video, a video-conferencing product, which completed its differentiated Message Video Phone (MVP) solution.[23][24] The RingCentral MVP app launched in May 2020.[25]
In 2021, RingCentral entered an exclusive UCaaS partnership with Mitel; under this collaboration, Mitel's users can access RingCentral's cloud communications platform.[26] In December, the company curated common integrations while it protected secure data with MVP.[27]
Mo Katibeh was appointed as president and COO in January 2022, having previously served as an AT&T executive for over 20 years.[28]
RingCentral began offering its MVP and Contact Center features to Amazon Web Services in February 2023.[29]
RingSense, an AI platform, was launched in March 2023.[25]
In April 2023, Vodafone Italy and RingCentral partnered to roll out Vodafone Business UC. In May 2023, Vodafone Portugal and RingCentral announced the Vodafone One Net TeamCollaboration. Using RingCentral's UCaaS solution, these partnerships combine RingCentral's messaging and video capabilities with Vodafone's fixed and mobile voice communications functionality into one platform.[30]
The next generation of RingCentral for Microsoft Teams 2.0 was announced in May 2023. The next-gen embedded app integrates RingCentral's cloud PBX and softphone dialer capabilities directly into the Teams platform and features calling, SMS, and fax. It can also be coupled with RingCentral Contact Center.[31]
In June 2023, RingCentral became the first global cloud provider to offer fully compliant cloud phone system services in India.[32]
On August 28, 2023, Tarek Robbiati became CEO.[33]
In May 2025, RingCentral launched RingCX for Salesforce Service Cloud Voice.[34]
In July 2025, the company launched its AI Receptionist for all customers. The AI agent uses generative AI and natural language processing to interact with callers.[35]
In June 2015, RingCentral acquired Glip, a persistent workstream collaboration platform that integrates team messaging, document sharing, task and event management, and other collaboration functionalities into the RingCentral platform.[36] In October 2018, it acquired Dimelo, a Paris-based OmniChannel contact center provider.[37]
In January 2019, the company acquired Connect First, a Boulder, Colorado-based outbound and blended customer engagement provider.[38]
In December 2020, the company acquired DeepAffects, which specializes in intelligence-assisted speech recognition.[39][40] In March 2021, it purchased Kindite, an encryption service provider.[41]
RingCentral acquired Hopin, an online audience engagement technology provider, in August 2023.[42]
RingCentral's integrated platform ensures compatibility across its entire product line. For example, MVP (UC) can be used with RingCentral's Contact Center (CaaS). It provides a cloud-based business phone system with PBX features including multiple extensions, call control, Outlook, Salesforce, Google Docs, DropBox, and Box integration; SMS; video conferencing and web conferencing; fax; auto-receptionist; call logs; and rule-based call routing and answering.[6][43][44]
RingCentral Office is a cloud-based PBX system for businesses.[44] RingCentral Office features include call auto-attendant, company directory, call forwarding and handling, multiple extensions, a mobile app for iPhone and Android, Business SMS, video conferencing and screen-sharing, and fax.[44]
In June 2015, RingCentral acquired Glip,[45] a persistent workstream collaboration platform that integrates team messaging, document sharing, task and event management, and other collaboration functionalities into the RingCentral platform.[46]
