Jeff Williams
Jeff joined Ascellus as Chief Financial Officer in 2025, bringing more than 25 years of experience investing and scaling innovative technology companies. He has spent his career advising companies on improving operations, enhancing go to market capabilities, and scaling development efforts in high growth organizations including many leading Healthcare IT companies.
Prior to Ascellus, Jeff spent 25 years at Spring Lake Equity Partners (formerly Tudor Ventures), where he was a Partner investing in mid-to-late stage venture backed technology companies. During this time, Jeff invested in over 20 companies and served on over 16 boards of directors leading to over 13 successful exits. Beyond his board experience, Jeff has been actively involved in capital raising and mergers and acquisitions with the portfolio companies he has backed. Jeff continues to advise Cognition Corporation, a Spring Lake Equity Partners portfolio company, and acts as an advisor to .406 Ventures on financial strategy and operations.
He holds a BA in History from Yale University and an MBA from the MIT Sloan School of Management and resides in Boston with his family.
