Jack O’Callaghan

Jack O’Callaghan

Jack joined Capstone in July 2024 as an Associate on the Business and Financial Services team. As a Research Analyst, he assists with policy-driven investment opportunities throughout the financial services industry.   Prior to working at Capstone, Jack interned in...
Samir Neal

Samir Neal

Samir is an Associate on Capstone’s energy team. He specializes in regulatory and investment research across the hydrocarbon value chain, providing analysis of developments impacting onshore and offshore exploration and production, midstream infrastructure, and...
Katherine Mock

Katherine Mock

Katherine joined the Operations Team at Capstone in 2024 as the Executive Assistant to three managing directors at the firm and has also supported Capstone’s CEO, David Barrosse. As of March 2025, she now serves the firm as Operations Associate, assisting the team...
Rosie McCarthy

Rosie McCarthy

Rosie joins Capstone as an Associate on the Special Situations team through the Capstone Associate Program. She recently earned her Master’s in Management from Georgetown University’s McDonough School of Business, a STEM-designated program. Prior to...
Tomás Martínez Adalid

Tomás Martínez Adalid

Tomás joined Capstone in 2024 as an Associate with the London Financial and Business Services Team. In his role, he works closely with private equity investors and corporate clients, delivering insights on strategic risks and opportunities through comprehensive policy...