Leadership Team

The team behind the science

Dr. Greg Sullivan

Chairman & Chief Science Officer

Greg Sullivan, MD, who co-founded Bridge Therapeutics with the goal of helping patients beyond the walls of his own medical practice, has 25 years of experience conducting human studies for new drugs. Since 2003, he has performed numerous buprenorphine studies, including FDA safety and efficacy studies for every buprenorphine product currently approved for the U.S. market. He is board-certified in both addiction medicine and internal medicine and treats chronic pain patients at his practice in Birmingham, Ala.

Tim Peara, MBA

President & Finance Director

Tim Peara, MBA, brings to Bridge Therapeutics over 30 years’ experience in institutional investments and technology start-ups. He has contributed significantly to the growth and strategy of major players in finance (Wells Fargo, Prudential, Lehman) and industry (Koch, GE, Bechtel, United Technologies). He has also built and led teams while consulting to a variety of businesses, especially to energy tech.  Throughout his career he has negotiated and structured investments, conducted due diligence and built financial models.  Tim also has considerable international experience and foreign language skills.  Tim Peara holds a BA in Latin American Studies from Wesleyan University, Connecticut and an MBA in Finance & International Business from the University of Chicago’s Booth School of Business.

Alton S. Kelley

Director of Business Development

Mr. Kelley has worked in the pharmacy, marketing and business development space throughout his career. Mr. Kelley has a B.B.A. from the University of Alabama with a Major in Business Management and a Minor in Computer Science.


Joseph Mullin

Board Member

Mr. Mullin has over 20 years of experience in finance restructuring consulting and asset management. He is the founder of Joseph E. Mullin LLC, where he has worked on projects for a variety of companies in the retail, energy and media space. He previously worked at Millennium Global, Invesco, WL Ross and Goldman Sachs. He has an AB from Harvard College.