About us

Leadership

Meet the leaders of the leading business cloud phone system company.

  • Executive Team
  • Board of Directors

Vlad Shmunis CEO, Founder and Chairman
of the Board

David Berman President

Clyde Hoisen Executive Vice President and
Chief Financial Officer

Kira Makagon Executive Vice President
of Innovations

Dave Sipes Executive Vice President of
International Business

Praful K. Shah Senior Vice President
of Strategy

Ryan Azus Senior Vice President
of Worldwide Sales

John Marlow General Counsel and Senior Vice
President of Corporate Development

Vlad Vendrow Co-Founder and Chief Technology Officer of RingCentral

Walt Weisner Senior Vice President of Global
Customer Care

Richard Borenstein Senior Vice President of Business
Development

Vlad Shmunis

Chief Executive Officer, Founder and Chairman of the Board at RingCentral

Vlad Shmunis founded RingCentral in 1999 and launched RingCentral's cloud business phone service in 2003. He developed the service based on the need he saw among businesses for an alternative to inflexible and expensive hardware-based phone systems.

Since founding RingCentral, Shmunis has led the company in reimagining business communications. Today, the company empowers hundreds of thousands of businesses and their employees to work with unparalleled freedom and in imaginative new ways, via a wide variety of mobile and fixed line devices in traditional as well as dispersed work environments.

Shmunis has more than 25 years of industry and management experience. Prior to launching RingCentral, he founded and served as the CEO of Ring Zero Systems, a desktop software communications company. After shipping more than 25 million copies of its Windows software through partnerships with leading PC manufacturers, Ring Zero Systems was acquired by Motorola.

Shmunis was named the Ernst & Young Entrepreneur Of The Year® 2011 Northern California Award finalist. He holds bachelor’s and master’s degrees in computer science from San Francisco State University, and is a named inventor in a number of U.S. patents.

Doug Leone

Partner at Sequoia Capital

Doug Leone works with mobile, Internet, software and communication companies. Prior to joining Sequoia Capital in 1988, Leone held sales and sales management positions at Sun Microsystems, Hewlett-Packard and Prime Computer. He has a BS in Mechanical Engineering from Cornell University, an MS in Industrial Engineering from Columbia University, and a MS in Management from the Massachusetts Institute of Technology.

Rob Theis

Managing Director at Scale Venture Partners

David Weiden is a Partner at Khosla Ventures. His investment focus includes Internet software, digital media services, and communications. A number of Weidan’s investments have been significant acquisitions or had IPOs including Bitfone (HPQ), Good Technology (MOT), GroupMe (Skype/MSFT), Ingenio (T), LogMeIn (LOGM), Opsware (HPQ), Slide (GOOG), and Tellme (MSFT). He has been recognized by Fortune and Forbes as one of the top rising tech investors.

David Weiden

Partner at Khosla Ventures

David Weiden is a Partner at Khosla Ventures. His investment focus includes Internet software, digital media services, and communications. A number of Weidan’s investments have been significant acquisitions or had IPOs including Bitfone (HPQ), Good Technology (MOT), GroupMe (Skype/MSFT), Ingenio (T), LogMeIn (LOGM), Opsware (HPQ), Slide (GOOG), and Tellme (MSFT). He has been recognized by Fortune and Forbes as one of the top rising tech investors.

R. Neil Williams

Senior Vice President and Chief Financial Officer at Intuit

R. Neil Williams became Intuit’s senior vice president and chief financial officer in January 2008. Williams has nearly 30 years of strategic, operational and transactional experience in the financial services industry. He is responsible for all financial aspects of the company, including corporate strategy and business development, investor relations, financial operations and real estate.

Before joining Intuit, Williams was the executive vice president and chief financial officer for Visa U.S.A., Inc. In that role, he led all financial functions for the company and its subsidiaries, including financial planning, business planning and financial monitoring. Williams concurrently served as chief financial officer for Inovant LLC, Visa's global information technology organization, responsible for global transactions processing and technology development.

His previous banking experience includes senior financial positions at commercial banks in the Southern and Midwestern regions of the United States.

Williams, a certified public accountant, received his bachelor’s degree in business administration from the University of Southern Mississippi.

Dr. Bobby Yerramilli-Rao

Co-founder and Partner at Hermes Growth Partners

Bobby Yerramilli-Rao is co-founder and partner at Hermes Growth Partners, focusing on growth stage investment opportunities in the TMT sector.

He has served as Marketing and New Businesses Director for Vodafone Internet Services, the division of Vodafone responsible for consumer data services and data related revenues globally.

Yerramilli-Rao joined Vodafone as Corporate Strategy Director, responsible for formulating the strategy for the Group. He has served on the investment committee of Vodafone Group and has represented the company at the GSMA Board.

Before Vodafone, he was a partner at McKinsey and Company in Palo Alto, New York and London, focused on telecoms, new media and high tech. He holds an M.A. in Electrical Engineering from the University of Cambridge, and a DPhil in Robotics from the University of Oxford. He has held research positions at the University of California at Berkeley, and has worked as an engineer at GEC Research.