July 20, 2023

The Georgia Tech Alumni Association has announced the 2023 class of 40 Under 40. The annual program showcases how Tech graduates impact every industry worldwide and work to improve the way we live through their diligence and expertise from an early age.

Celebrating changemakers, this year’s class includes three graduates of the George W. Woodruff School of Mechanical Engineering: Joe Gammie, ME 13, Tom Mulcahey, M.S. ME 10, Ph.D. ME 14, and Mihir Pathak, ME 08, M.S. ME 10, Ph.D. ME 13.

Nominees, who must have completed at least one semester at Georgia Tech and be under the age of 40 as of June 30, 2023, were scored using a 25-point rubric by a committee of 24 faculty, staff, and volunteers who collectively represented all Georgia Tech colleges.

This exceptional class of Jackets have done the impossible; from furthering space exploration to revolutionizing healthcare, these individuals have made the Tech community exceptionally proud.

Executive Vice President & Cofounder | Utility Innovation Group

Joe Gammie has spent his career leading innovation, revolutionizing the electric grid. In 2021, he cofounded the Utility Innovation Group with the mission of shaping the future of electric grid infrastructure across the globe through explicit focus on decarbonization and the increasing need for resiliency. Gammie has developed several microgrid programs powering more than 250,000 homes and has led numerous state-of-the-art projects across the U.S. and E.U., including the Georgia Tech Energy Lab. He holds an MBA from the Chicago Booth School of Business and a bachelor’s in Mechanical Engineering from Georgia Tech with a minor in Energy Systems.

Favorite Tech Memory: After upsetting Virginia Tech, singing the fight song with Bud Peterson and relocating a goal post to his front lawn.

CTO & COO | CSA Medical, Inc.

Tom Mulcahey is an inventor and leader in the field of medical device research and development. Over the decade since graduating from Georgia Tech, he has developed, patented, and commercialized two lifesaving technologies. After a successful exit of truFreeze in 2019, Mulcahey set his sights on a treatment for COPD with chronic bronchitis. Four years later, RejuvenAir is on track to help the millions of patients suffering from the world’s third leading cause of death. Graduate classes in entrepreneurship sparked a strong interest in startups that launched him into a fast-paced career in VC-backed technology development.

Favorite Tech Memory: Shaking hands with my dissertation committee after successfully defending and hearing “Congratulations, Dr. Mulcahey.”

Chief Operating Officer | Mayvenn

Mihir Pathak is dedicated to advancing entrepreneurship. After earning his bachelor’s, master’s, and doctorate in Mechanical Engineering and Cryogenic Physics from Georgia Tech, Pathak grew his career as an innovator at NASA, the White House, McKinsey, and Stack Overflow. Today, he serves as COO at Mayvenn. He sits on several company boards, has become an angel investor in 10 companies through his fund, and has personally advised more than 30 startup founders. Pathak serves on the Forbes Business Council and as chair of the Woodruff Young Alumni Council. In 2023, Pathak was inducted into the Georgia Tech College of Engineering’s Council of Outstanding Young Engineering Alumni.

Favorite Tech Memory: Rushing The Flats in 2009 when the No. 19 Georgia Tech Yellow Jackets upset the No. 4 Virginia Tech Hokies!