
Black Granite Capital invests in fast-growing companies in healthcare and technology. Black Granite Capital makes growth equity investments in companies with products on the market, rapidly growing revenues, a significant competitive advantage, experienced management teams and a large group of potential acquirers.
Noah J. Kroloff is founder and Managing Director of Black Granite Capital. Mr. Kroloff has been helping innovative healthcare and technology companies grow for over 30 years--as a management consultant at McKinsey & Co., a senior operating executive at i-STAT Corp., and an investing partner at NGN Capital and Black Granite Capital.
At Black Granite Capital, Mr. Kroloff leads the firm's growth equity stage investing in healthcare and technology, with a focus on software for the healthcare sector. Prior to founding Black Granite Capital, Mr. Kroloff invested in healthcare companies at NGN Capital for 11 years, with a focus on medical devices and diagnostics. Prior to NGN Capital, Mr. Kroloff served as an executive officer at i-STAT Corp., a publicly-traded medical device and diagnostics company where he was Vice President for International Sales & Marketing and Corporate Development. He led the creation of global alliances with Abbott Laboratories and Hewlett-Packard Medical Products Group and created i-STAT’s international distribution network. He was actively involved in the sale of i-STAT to Abbott for approximately $450 million. Prior to i-STAT, Mr. Kroloff was an Engagement Manager at McKinsey & Co. where he advised leading pharmaceutical, diagnostics, and tech companies on R&D management, portfolio strategy, and alliance formation. Mr. Kroloff also worked in international business development at Merck & Co.
Mr. Kroloff received his BA in general science from Brandeis University and his MBA from the MIT Sloan School of Management where he was a co-founder and served as a judge of the MIT $100K Entrepreneurship Competition--one of the largest such competitions in the world. Mr. Kroloff is currently or was previously a board member or board observer of Valtech Cardio, Cerapedics, OptiScan Biomedical, Hospital IQ, TigerConnect, Bluesight (Kit Check), IntelyCare, Jump Technologies, and Z Software. He is a member of the board of the American Technion Society-NY and has served as an advisor to the NYC Economic Development Corporation’s healthcare initiative and as a member of McKinsey's alumni advisory council.
Noah J. Kroloff is founder and Managing Director of Black Granite Capital. Mr. Kroloff has been helping innovative healthcare and technology companies grow for over 30 years--as a management consultant at McKinsey & Co., a senior operating executive at i-STAT Corp., and an investing partner at NGN Capital and Black Granite Capital.
At Black Granite Capital, Mr. Kroloff leads the firm's growth equity stage investing in healthcare and technology, with a focus on software for the healthcare sector. Prior to founding Black Granite Capital, Mr. Kroloff invested in healthcare companies at NGN Capital for 11 years, with a focus on medical devices and diagnostics. Prior to NGN Capital, Mr. Kroloff served as an executive officer at i-STAT Corp., a publicly-traded medical device and diagnostics company where he was Vice President for International Sales & Marketing and Corporate Development. He led the creation of global alliances with Abbott Laboratories and Hewlett-Packard Medical Products Group and created i-STAT’s international distribution network. He was actively involved in the sale of i-STAT to Abbott for approximately $450 million. Prior to i-STAT, Mr. Kroloff was an Engagement Manager at McKinsey & Co. where he advised leading pharmaceutical, diagnostics, and tech companies on R&D management, portfolio strategy, and alliance formation. Mr. Kroloff also worked in international business development at Merck & Co.
Mr. Kroloff received his BA in general science from Brandeis University and his MBA from the MIT Sloan School of Management where he was a co-founder and served as a judge of the MIT $100K Entrepreneurship Competition--one of the largest such competitions in the world. Mr. Kroloff is currently or was previously a board member or board observer of Valtech Cardio, Cerapedics, OptiScan Biomedical, Hospital IQ, TigerConnect, Bluesight (Kit Check), IntelyCare, Jump Technologies, and Z Software. He is a member of the board of the American Technion Society-NY and has served as an advisor to the NYC Economic Development Corporation’s healthcare initiative and as a member of McKinsey's alumni advisory council.

Thomas J. DiBartholomeo, MD, is the Senior Medical Advisor of Black Granite Capital. Dr. DiBartholomeo has been practicing medicine as well as advising investment firms on medical investments for nearly 30 years.
Dr. DiBartholomeo is a practicing diagnostic and interventional radiologist. He divides his time between medical practice and healthcare investment analysis. He has been an advisor to Teleflex Medical and was an advisor to HotSpur Technologies, which was acquired by Teleflex. He has served and still serves on multiple medical advisory boards. He has been involved in the financing of many early-stage medical technology and biotech companies. Dr. DiBartholomeo is a founder of an early-stage healthcare IT company, Cognitant. Dr. DiBartholomeo has extensive experience analyzing healthcare opportunities for hedge funds and venture capital firms including serving as senior healthcare analyst for Ram Partners, a hedge fund, for ten years.
Dr. DiBartholomeo has served on multiple committees at various hospitals including the institutional review board for clinical trials. He is assistant professor at the Frank Netter School of Medicine of Quinnipiac University and advisor to the research committee there. He has an appointment at Yale School of Medicine. He graduated cum laude from Brandeis University. He received his medical degree from the Albert Einstein College of Medicine. His residency and fellowship were performed at Montefiore Medical Center.
Dr. DiBartholomeo is a practicing diagnostic and interventional radiologist. He divides his time between medical practice and healthcare investment analysis. He has been an advisor to Teleflex Medical and was an advisor to HotSpur Technologies, which was acquired by Teleflex. He has served and still serves on multiple medical advisory boards. He has been involved in the financing of many early-stage medical technology and biotech companies. Dr. DiBartholomeo is a founder of an early-stage healthcare IT company, Cognitant. Dr. DiBartholomeo has extensive experience analyzing healthcare opportunities for hedge funds and venture capital firms including serving as senior healthcare analyst for Ram Partners, a hedge fund, for ten years.
Dr. DiBartholomeo has served on multiple committees at various hospitals including the institutional review board for clinical trials. He is assistant professor at the Frank Netter School of Medicine of Quinnipiac University and advisor to the research committee there. He has an appointment at Yale School of Medicine. He graduated cum laude from Brandeis University. He received his medical degree from the Albert Einstein College of Medicine. His residency and fellowship were performed at Montefiore Medical Center.