Board of Directors

Jason Spievak, CEO – Prior to founding RingRevenue®, Jason was a Director and Chief Financial Officer at CallWave, Inc. (CALL), a voice-over-internet software and service provider. Jason led CallWave’s successful IPO in 2004 and was a member of the senior team that delivered 12 consecutive quarters of revenue growth, profitability and positive cash flow with more than 750,000 paid subscribers. Prior to CallWave, Jason was Vice President of technology M&A in Broadview's Silicon Valley office, where he was the execution lead on more than $1.25 billion in successful transactions. Jason has also held product management roles with Nextel Communications and with Netopia (NTPA), where he helped the company complete its successful IPO in 1996. Jason earned his MBA from the Kellogg School at Northwestern University and his BA from UC Santa Barbara.

Robert Duva, CMO – Prior to founding RingRevenue®, Robert was the Director of Customer Acquisition for CallWave, Inc. (CALL), where he led the team responsible for growing paid subscriptions to over 750,000 and driving over $50 million in annual revenues. Robert served on CallWave’s Product Management team, where he developed strategies and defined product requirements for customer acquisition and retention that helped secure a tier-one venture capital investment and created the foundation for CallWave’s IPO. Robert earned his BS degree in business administration from The George Washington University.

Mark Suster is a Partner with GRP Partners in Los Angeles. Mark joined GRP in 2007 after having worked with GRP for nearly 8 years as a two-time entrepreneur. Most recently Mark was Vice President, Product Management at Salesforce.com (CRM) following its acquisition of Koral, where Mark was founder and CEO. Prior to Koral, Mark was founder and CEO of BuildOnline, the largest independent global content collaboration company focused on the engineering and construction sectors, which was acquired by SWORD Group (SWP). Earlier in his career, Mark spent nearly ten years working for Accenture in Europe, Japan and the U.S. Mark earned his MBA from the University of Chicago and a BA in Economics from the University of California at San Diego. He is a dual citizen of the US and the UK. In the GRP portfolio, Mark sits on the boards of RingRevenue® and EMN8 and is a Board Observer of Qualys.

John Greathouse has held a number of senior executive positions with successful startups during the past fifteen years. At Computer Motion (RBOT), he was the CFO and VP of Business Development. At Citrix Online (CTXS - formerly Expertcity), Greathouse served as CFO and SVP of Strategic Development. At CallWave (CALL), he served as the SVP of Sales & Bus Dev. In his capacities at Computer Motion and Citrix, Greathouse spearheaded transactions which generated more than $350 million of shareholder value, including Computer Motion's initial public offering and the sale of Expertcity to Citrix for over $230M. Greathouse is currently a Faculty member of UCSB's Technology Management Program and a Venture Partner at Rincon Venture Partners. Greathouse is a CPA and earned his MBA from the Wharton School.