Jeffrey Kirt
Chief Executive Officer and Director
Mr. Kirt has served as Greenidge’s Chief Executive Officer and a member of its board of directors since March 2021. Before joining Greenidge, Mr. Kirt served as Managing Partner of Fifth Lake Management, LLC where he oversaw day-to-day aspects of the private investment company from 2017 through March 2021. Prior to that, Mr. Kirt served as Partner of Pamplona Capital Management, LLC, where he oversaw private investments from 2014 through 2017 and Oak Hill Advisors, L.P. where he oversaw private and public investments from 2002 to 2014. He has served on several public company boards of directors and is currently the Vice Chairman Verso Corporation. Mr. Kirt received a B.A. in Economics, with distinction, from Yale University.
Dale Irwin
Mr. Irwin has served as Greenidge’s President since Greenidge was acquired by the Controlling Stockholder in February 2014 and began serving solely as President, overseeing day-to-day operations, in March of 2021. He previously also served as the Chief Executive Officer of Greenidge from 2014 until March 2021. Mr. Irwin has more than 20 years of diverse international experience in leading teams and managing projects from idea to execution. In his 18+ years of experience in the energy sector, Mr. Irwin has managed numerous large and small-scale capital projects, including the conversion of Greenidge from a 1930s era coal-fired power plant to a modern, 21st century natural gas-powered plant and, ultimately, a fully compliant power plant-bitcoin mining company. He provides expertise in powerplant compliance, construction management, outage management, fossil fuel operations and maintenance training. Mr. Irwin holds a Bachelor’s degree in Organizational Management from Keuka College.
Timothy Rainey
Chief Financial Officer
Mr. Rainey has served as Greenidge’s Chief Financial Officer since 2017. Mr. Rainey is a licensed CPA with more than 10 years of diverse accounting and finance experience, including at a top 40 accounting firm. For two years, from 2015 through 2017, Mr. Rainey served as Senior Accountant at Bonadio & Co. LLP. As CFO of Greenidge, Mr. Rainey continuously weighs opportunities and risks in both the cryptocurrency and energy markets to make winning decisions for both institutional investors and mining customers. He is frequently quoted by top-tier trade publications for his unique insights into cryptocurrency and energy markets, as well as the areas in which they intersect. Mr. Rainey holds an M.B.A. in Accounting from the State University of New York College at Oswego.
Dustin Beaudry
Chief Technology Officer
Mr. Beaudry has served as Greenidge’s Chief Technology Officer since January 2021. Mr. Beaudry brings over 18 years of consulting and operating experience as a technology professional. Prior to joining Greenidge Generation, Mr. Beaudry was Director of Technology and Operations at Pegasus Capital Advisors, a private equity firm headquartered in Greenwich, Connecticut. He held senior management roles and advisory engagements with portfolio companies across a number of industries including manufacturing, transportation, energy and professional services. He also served as Director of Management Consulting at RSM US LLP. Mr. Beaudry is a graduate of Connecticut College.
Greg Ohanessian
Chief Mining Officer
Mr. Ohanessian has worked as a consultant to Greenidge since 2019 and became the Chief Mining Officer in 2021. Mr. Ohanessian is an experienced veteran of the crypto mining community since he started mining in 2013. For three years, from 2017 through 2020, Mr. Ohanessian served as Chief Mining Officer at VC Mining Enterprises Inc., a Bitcoin Mining Data Center located in Georgia, where he lead a team of 10 employees and scaled the facility from its beginnings to 18 MW in 3 years. Mr. Ohanessian has substantial experience working with cyrptocurrencies and mining equipment. Mr. Ohanessian led bitmain’s first USA training class for ASIC Miner repair in 2019 at Core Scientific’s Dalton, GA facility and has been featured in a number of their marketing videos. Mr. Ohanessian is known in the crypto community for his professionalism and industry expertise and is factory trained in ASIC Miner repair.
Christian Mulvihill
Vice President of Engineering and Corporate Development
Mr. Mulvihill serves as Vice President of Engineering and Corporate Development at Greenidge. He most recently worked as an Associate with Atlas Holdings after serving as an Atlas Field Associate at Granite Shore Power from April 2018 to August 2020. He began his career as a Project Manager in TC Energy’s Canadian Natural Gas Pipeline business. Christian received a B.Sc. in Mechanical Engineering from Queen’s University in Canada.
Lance Rosenzweig
Director, President, and Chief Executive Officer of
Lance Rosenzweig is President and CEO of and is passionate about building the company into a global leader of homesourced customer support and business process outsourcing solutions. Lance is an entrepreneur, CEO, and board member, with a track record of building great companies and generating substantial shareholder returns.

Prior to joining, Lance has been CEO of three leading business process outsourcing companies: Startek, which grew to $650M in revenues and over 40,000 employees, Aegis USA, which grew to over $400M in revenues and over 18,000 employees, and PeopleSupport, which he co-founded, took public, grew revenues to $150M and generated 10X returns to early investors. Lance was also CEO of Domo Tactical Communications.