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RingCentral, Inc.
Traded as NYSERNG
Industry Cloud computing based business phone systems
Founded 1999
Headquarters 20 Davis Drive
Belmont, California 94002
Key people
Vlad Shmunis, CEO
Products RingCentral Office
RingCentral Mobile
RingCentral Fax
Number of employees
Website www.ringcentral.com

RingCentral (NYSERNG) is a publicly traded provider of cloud-based phone systems for businesses.[1][2][3][4][5][6][7] It is headquartered in Belmont, California and has offices in Denver, Colorado; Charlotte, NC; Toronto, Canada; Singapore; Manila, Philippines; Xiamen, China; St. Petersburg, Russia and Odessa, Ukraine.[8][9][10][11]

RingCentral CEO Vlad Shmunis founded the company in 1999.[12][13] RingCentral investors included Doug Leone, Sequoia Capital, David Weiden, Khosla Ventures, Rob Theis, Scale Venture Partners, Bobby Yerramilli-Rao, Hermes Growth Partners and DAG Ventures.[9][14][15] It completed its IPO in 2013.[16][17]


The RingCentral was bootstrapped until it received its first round of venture capital investment in 2006.[11] In 2011, RingCentral added Cisco and Silicon Valley Bank as investors and had secured a total of $45 million in capital investment.[18]

On September 27, 2013, RingCentral completed its IPO.[16][17] The company completed a follow-on offering in March 2014 worth 7.5 million.[19]


RingCentral's flagship product is RingCentral Office. The company also offers RingCentral Professional, and RingCentral Fax.[20][21]

RingCentral provides a cloud-based business phone system. It offers PBX features such as 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.[5][21][22] Customers do not require capital investment or maintenance contracts, which lowers customer costs and– as with most cloud-based technologies -- "potentially disrupts" traditional on-premises PBX providers.[23]

RingCentral Office[edit]

RingCentral Office is a cloud-based PBX system for businesses.[22] 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.[22]

RingCentral Professional[edit]

RingCentral Professional, is a suite that provides a universal telephone number, voice mail, dial-by-name directory, call-forwarding, and other features through a smartphone app on iPhone and Android devices.[15][24]

RingCentral Fax[edit]

RingCentral Fax allows users to send and receive faxes through the Internet without a fax machine.[25][26] The service integrates with Dropbox, Box, and Google Docs.[25]

RingCentral Contact Center[edit]

RingCentral Contact Center is a full-featured contact center product, formed via a partnership with inContact.[27] It offers real-time reporting and dashboards, historical reporting, multichannel capabilities, supervisory capabilities, an IVR, and numerous other functions necessary to the operation of a contact center.


In June 2015, RingCentral acquired Glip.[28] Glip is a persistent collaboration platform which adds instant messaging, document sharing, task and event management, and other collaboration functionality to the RingCentral platform.In June 2015, Glip was acquired by RingCentral for an undisclosed amount.[29]


RingCentral was named a 2010 World Economic Forum Technology Pioneer.[30]

PC Magazine has awarded RingCentral with two Editor's Choice Awards.[21][22] RingCentral also won the 2009 Product of the Year Award from Internet Telephony Magazine, and was named a 2009 CNET Webware 100 award winner.[31] In 2015, the company also won Best Phone System Award for 2015, Supreme Software Award 2015 and Best Mobile Support Award 2015 as reviewed by FinancesOnline.[32]


  1. ^ Rebecca Buckman (March 4, 2008). "Internet Phone Service Gets Plush". The Wall Street Journal. Retrieved May 18, 2014. 
  2. ^ "The jobs machine". The Economist. April 13, 2013. Retrieved May 18, 2014. 
  3. ^ "Services That Eliminate Telephone Tag". Bloomberg Businessweek. August 11, 2009. Retrieved May 18, 2014. 
  4. ^ Kurt Wagner (June 10, 2013). "Native ads? Bitcoins? 5 tech buzzwords explained". Fortune. Retrieved May 18, 2014. 
  5. ^ a b "Businesses Move To Voice-Over-IP". Forbes. December 9, 2008. Retrieved May 18, 2014. 
  6. ^ Zack Stern (September 16, 2009). "Online Phone Service Bundles Small-Business Needs". Washington Post. Retrieved May 18, 2014. 
  7. ^ "13 startup stars on the verge of an IPO". Fortune. Retrieved May 18, 2014. 
  8. ^ Fahmida Y. Rashid (April 17, 2013). "RingCentral Explains How the Cloud Transformed VoIP". PC Mag. Retrieved May 18, 2014. 
  9. ^ a b Patrick Hoge (June 9, 2010). "Ringtones in the Cloud". Upstart Business Journal. Retrieved May 18, 2014. 
  10. ^ Nate Werlin (June 21, 2011). "Entrepreneur of the Year finalist: "Never run away from a fight"". VentureBeat. Retrieved May 18, 2014. 
  11. ^ a b Bill Robinson (March 24, 2012). "Memo to Small Business: RingCentral Will Take Your Calls". Huffington Post. Retrieved May 18, 2014. 
  12. ^ "Cloud-based phones bring angelic benefits". The Salt Lake Tribune. May 18, 2012. Retrieved May 18, 2014. 
  13. ^ Pierre Bienaimé (February 9, 2012). "The Man Who Turned $5,000 into RingCentral". Palo Alto Patch. Retrieved May 18, 2014. 
  14. ^ Sean Ludwig (September 9, 2011). "RingCentral raises an additional $10M to bring calling to the cloud". VentureBeat. Retrieved May 18, 2014. 
  15. ^ a b "RingCentral Launches New Mobile, Cloud-Based Phone System For Businesses". TechCrunch. April 18, 2012. Retrieved May 18, 2014. 
  16. ^ a b Patrick Hoge (September 27, 2013). "RingCentral makes music, Violin Memory plunges". San Francisco Business Times. Retrieved May 18, 2014. 
  17. ^ a b Tomio Geron (September 27, 2013). "Violin Memory IPO Flails, RingCentral IPO Soars". Forbes. Retrieved May 18, 2014. 
  18. ^ Leena Rao (September 8, 2011). "Eyeing An IPO, Cloud-Based Phone System RingCentral Raises $10M From Cisco And Others". TechCrunch. Retrieved May 18, 2014. 
  19. ^ John Sailors (March 12, 2014). "RingCentral closes follow-on offering". San Francisco Business Times. Retrieved May 18, 2014. 
  20. ^ "RingCentral, Inc.". Bloomberg Businessweek. Retrieved May 18, 2014. 
  21. ^ a b c Oliver Rist (January 7, 2008). "RingCentral DigitalLine VoIP Service". PC Mag. Retrieved May 18, 2014. 
  22. ^ a b c d Fahmida Y. Rashid (February 12, 2013). "RingCentral Office". PC Mag. Retrieved May 18, 2014. 
  23. ^ Renee Hopkins Callahan (December 9, 2008). "Businesses Move To Voice-Over-IP". Forbes. Retrieved May 18, 2014. 
  24. ^ Philip Elmer-DeWitt (August 24, 2009). "Why did Apple okay RingCentral?". Fortune. Retrieved May 18, 2014. 
  25. ^ a b Sean Ludwig (March 21, 2012). "RingCentral integrates with Dropbox, Box, Google to bring faxing to the cloud". VentureBeat. Retrieved May 18, 2014. 
  26. ^ Chad Brooks (May 18, 2012). "The Best Online Fax Services". Business News Daily. Retrieved May 18, 2014. 
  27. ^ "RingCentral Adds Cloud Contact Center to Its Enterprise Communications Solution". Yahoo! Finance. April 27, 2015. Retrieved July 3, 2015. 
  28. ^ Arik Hesseldahl (June 19, 2015). "RingCentral Expands Beyond Phone Service With Glip Acquisition". Re/Code. Retrieved July 3, 2015. 
  29. ^ Eddy, Nathan (2015-06-19). "RingCentral Acquires Cloud Messaging Company Glip". eWeek. Retrieved 2016-01-27. 
  30. ^ "Embracing Disruption: Redesigning the Future" (PDF). World Economic Forum. 2010. Retrieved May 18, 2014. 
  31. ^ Erik Linask (February 2010). "2009 INTERNET TELEPHONY Product of the Year Awards". TMC Net. Retrieved May 18, 2014. 
  32. ^ "Review of RingCentral: Pros, Cons and Pricing of Award-winning Phone System". 2015. Retrieved January 28, 2015.