About Us

As CEO and Co-Founder of Cayan™, Henry Helgeson is responsible for driving the future vision of the company, ensuring that Cayan remains at the forefront of payments innovation.

After attending Marist College, Henry worked as an independent contractor selling terminals and printers to small businesses. Intrigued by the payments industry and determined to find a lower cost solution for small businesses, Henry launched Merchant Warehouse (now Cayan) in 1998, the first company to provide easily accessible and affordable credit card processing services and equipment.

As customer needs evolved and new partnership opportunities arose, Henry expanded the company's focus. He led the launch of Genius®, an industry-leading payment technology platform that now powers payment acceptance at thousands of leading retailers and businesses throughout the U.S. and he continues to drive expansion of the Genius platform as well as new product offerings and value-adds.

Henry is involved in numerous industry associations and is an active member of the Electronic Transactions Association’s (ETA’s) Mobile Payments Committee. He has spoken at numerous events and conferences including ETA, Money2020, RSPA Retail Now, SXSW and PYMNTS.com. In 2012, he received the ETA Member of the Year Award, recognizing his contributions to the future success of the industry and he has been named to the Boston Business Journal’s (BBJ’s) “40 under 40” list.

As Cayan’s Chief Technology Officer (CTO), Paul Vienneau is responsible for building the company’s overall technology strategy and driving execution for both the organization and its growing family of product innovations.

Paul brings more than 20 years of leadership to his role. As a self-described ‘technologist’, he most recently served as CTO/Senior Vice President, Engineering for NaviNet, America’s largest real-time healthcare communications network. During his tenure with NaviNet, Paul was responsible for numerous milestone achievements including the establishment and management of a research and development office in Belfast, Northern Ireland and the institutionalization of the product management function.

Paul earned his Master of Science in Computer Information Systems from Bentley University and holds a Bachelor of Science in Electronics Management from Southern Illinois University. He also served as a Weapons Control Systems Technician as a member of the U.S. Air Force during the Gulf War.

Damian Tanenbaum comes to Cayan with 20+ years of strategic and operational leadership experience delivering amazing customer support in the electronic payments industry. His responsibilities as Executive Vice President of Operations include the supervision and leadership of our customer service, technical support and operations teams as well as delivering a world class customer experience.

Most recently, Damian served as senior vice president of operations at Pivotal Payments, where he provided management consulting for the last 6 years. There, he led teams through key process and technology improvements that positively impacted the company's efficiency and quality of work. Prior to that, Damian held leadership positions at Fifth Third Processing Solutions, Heartland Payments and First Data Corporation.

Damian is a Six Sigma Green Belt and holds numerous degrees and certifications from institutions such as Mckendree University and the University of Maryland.

As Senior Vice President of Engineering, Dom is responsible for executing state-of-the-art engineering practices and principles that support Cayan’s growing suite of innovative products including Cayan Genius® as well as APIs and mobile applications.

Dom brings more than 15 years of leadership to his role. A passionate technologist, he’s most recently served as Senior Director of Engineering at ZoomInfo, the leading B2B directory and business information provider. During his tenures at ZoomInfo and Teragram, Dom got to showcase his decade of experience with NLP, linguistics, search, big data, and machine learning. Outside of work, Dom has been a prolific contributor to the Open Source community, having contributed to over 30 major Open Source projects, and having maintained over 12. Dom has been passionate about training the next generation of Software Engineers, and has been a mentor for 6 sessions of Google’s Summer of Code program.

Dom is a graduate of the University of Pennsylvania and holds a Bachelor of Science & Engineering in Computer Science.

As Senior Vice President, Engineering, Damien is responsible for executing state-of-the-art engineering practices and principles that support Cayan’s growing suite of innovative products including Cayan Genius® as well as APIs and mobile applications.

Damien has 18 years of experience in large systems development, including 3 years on the largest non-military system in Europe, handling $10 billion revenue annually and managing all aspects of operations and service relating to some 26 million customers. He also served as Billing Design Authority on a number of next generation Datawave platforms for BT and, as Director of Technology for Exchange Solutions at NYSE Euronext, Damien led the team that upgraded the Market Data Systems at the NYSE following a $200 million acquisition of a Belfast software and technology center. Most recently he served as site lead and Senior Director of Engineering at NaviNet's Belfast-based research and development center, building and managing a world-class team.

Damien is a graduate of Queen's University Belfast and holds a Bachelor of Science 1st class honors in Computer Science.

As General Manager, Integrated Systems Division, Vinny is responsible for the leadership and growth of Cayan's Partner Channel, with a focus on developing new business opportunities and maximizing relationships with existing partners.

Vinny is an industry veteran with nearly 20 years in sales, relationship management, product and channel partnership positions. He has held key leadership roles at First Data, ROAM Data, and most recently as SVP of Major Account Sales at Elavon, Inc. and President of Sales and Relationship Management at JetPay.

Vinny received his Bachelor of Science in Business from the University of Tampa and Masters of Business Administration from University of Central Arkansas. Vinny also served in the United States ARMY.

Gregg Capone comes to Cayan with a 20-year record of client-focused product and professional services companies - leading teams and organizations with a pragmatic and results-oriented approach.

At Cayan, Gregg leads the professional services team and enabling Cayan’s focus on customer experience to ensure Cayan’s clients achieve their payment possibilities potential.

Prior to joining the Cayan team, Gregg served as the Managing Director of Services for ConvergeHEALTH by Deloitte. There, he directed client services for the organization serving leading healthcare and life sciences organizations. Gregg also served as Senior Director of Account Management at NaviNet, in addition to other management and consultant roles throughout his career.

Gregg earned his Bachelor of Science in Finance with Quantitative Methods from Babson College.

As Senior Vice President, Operations, Michael Gavin oversees the strategic vision, day-to-day support and relationship management functions for Cayan's growing partner and agent networks. In addition to supporting integrated partners, value-added resellers and sales agents, the SVP of Operations is responsible for leading and expanding the support and integrated programs aiding channel development and overall business growth.

Michael has served as a key leader within the organization since joining the company in late 2000. An individual who has made numerous key contributions, Michael was the architect behind the design and development of the agent channel.

Michael is a graduate of Merrimack College where he earned his Bachelor of Arts degree in Political Science.He is also an active member of the Better Business Bureau’s Board of Directors where he continues to help small businesses flourish and succeed.