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.

Chris Menard, Chief Financial Officer, brings 20 years of corporate finance and business administration leadership experience to Cayan. Chris is responsible for overseeing the organization’s finance and accounting functions, in addition to human resources and corporate development, helping to drive the company’s overall success.

Chris has held multiple executive level financial positions for some of Boston’s most prominent technology companies. Chris has served as Executive Vice President and Chief Financial Officer for both Bit9 and Brightcove. While at Brightcove he was part of the team that took the company public in 2012.

Chris also held multiple senior level administrative positions at Phase Forward, including Chief Financial Officer. In his time there he was part of the team for the company’s initial public offering, numerous acquisitions and its eventual sale to Oracle in 2010.

Chris is also active with other organizations. He sits on the Board of Directors for Globoforce and is chairmen of the company’s Audit Committee. He is also a member of the Board of Overseers for Babson College and is a member of their Audit Committee.

Recognized as one of Boston Business Journal’s 40 Under 40 in 2009, Chris holds a Bachelor of Science degree in Business Administration from Babson College, as well as a Master of Business Administration from Boston College. In his spare time, he enjoys coaching youth soccer and basketball.

As Chief Revenue Officer, Ken Paull is responsible for overseeing the company’s sales, marketing and business development functions. He brings more than 25 years of payments and executive level leadership experience to the organization. Prior to joining Cayan, Ken served as Chief Executive Officer of ROAM, a global leader in mobile commerce. His vast experience also includes serving as President of North America for PAX, Senior Vice President of RBS Lynk (now WorldPay), Vice President at Triton Systems and General Manager at VeriFone. While at RBS WorldPay, he was responsible for building and rapidly growing the national account payments division while also directing the turnaround of their ATM processing business. At VeriFone, Ken built the retail division which has become one of the largest segments of their business.

Ken has also served on the Board of Directors of TRM (now a part of Cardtronics). He has been a speaker and contributor for numerous payment industry and business organizations. Ken holds a B.S. in Marketing and Communications from Babson College, as well as an MBA in Telecommunications Management from Golden Gate University.

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 Marketing, Rachel Trueblood brings over twenty years of strategic marketing experience to Cayan​. Rachel, who is a retail industry veteran, is responsible for leading the company's marketing strategy and overseeing its execution to drive the company's overall success.

Rachel joins Cayan from Staples, where she held various roles during her tenure including head of marketing for Staples' UK division and leading Staples' global internal agency, brand and media teams. Most recently, Rachel led the strategic initiatives team, which, amongst other areas, included overseeing Staples' private label credit portfolios, mobile payments, gift cards and developing and launching Staples Business Loans.

At Cayan, Rachel leads a team of marketing professionals, including an internal creative and web development team, channel marketing, lead generation, product marketing, brand management, digital and social media, and marketing communications teams.

Rachel received her Bachelor of Science from Syracuse University as well as a Masters of Business Administration from the F.W. Olin Graduate School of Business at Babson College

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.

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.