Leadership

Co-Founder, Chief Executive Officer and Director
Nicholas Vita co-founded Columbia Care in 2012 and serves as Chief Executive Officer. Nicholas has over 25 years of experience serving in corporate leadership roles, investing capital, structuring and funding public/private partnerships and providing strategic advisory services to Fortune 500
Chief Financial Officer
Derek Watson joined Columbia Care in 2022 as Chief Financial Officer. Prior to joining Columbia Care, Derek served as the Chief Financial and Commercial Officer at Tastes on the Fly, a private equity-backed national consumer retail company based in California.
Chief Operating Officer
David Hart joined Columbia Care in 2016 and became Chief Operating Officer in 2018. Prior to joining Columbia Care, David served as Chief Operating Officer of Abyrx, a venture capital-backed medical device company that developed, manufactured and commercialized a portfolio of intraoperative cross
Chief Legal Officer and General Counsel
David Sirolly joined Columbia Care in 2021 as Chief Legal Officer and General Counsel. Prior to joining Columbia Care, David served as General Counsel, Corporate and Chief Compliance Officer of Integra LifeSciences Corporation, a publicly-traded global medical technology company.
Chief Growth Officer
Jesse Channon joined Columbia Care in December 2019 as Chief Growth Officer. Jesse is an accomplished leader with over a decade of experience in digital marketing, consumer targeting, grassroots campaigns and social media, having advised and worked with some of the largest brands and agencies in
Chief People and Administrative Officer
Bryan Olson joined Columbia Care in 2017 as Chief Human Capital Officer. Now, as Chief People and Administrative Officer, he is responsible for the human resources, diversity and inclusion, corporate affairs, physical security, corporate compliance, M&A integration, project management, and internal
Chief Scientific Officer
Rosemary Mazanet, M.D., Ph.D., began advising Columbia Care in 2013. She joined its Scientific Advisory Board as its Chair in 2015 and became its Chief Scientific Officer in 2017. Rosemary trained in Internal Medicine and Oncology at the Brigham and Women’s Hospital/Dana Farber Cancer Institute
Chief Data Officer
Guy Hussussian joined Columbia Care in 2018 as Chief Data Officer. He brings with him more than 20 years of Engineering, IT and Operations leadership experience. Prior to Columbia Care, Guy was responsible for Cloud Infrastructure Engineering and Operations groups at IBM where he was tasked with