About Callum
Callum is an Investment Principal at Bullhound Capital. He joined the firm after finishing his PhD at the University of Cambridge, where he worked on developing semiconductor materials that could one-day underpin the quantum internet. Topics covered in his academic career were varied and broad, ranging from quantum and battery materials to data science and photonics. He’s published many high impact papers, receiving >150 citations and speaking at a host of the leading academic conference in his field. Always close to innovation, Callum has previously worked with Hummingbird Ventures and Funding Circle. Covering deeptech more broadly in the team he has led or supported our investments in Q-CTRL, Leolabs and Quantum Systems.
Snapshot
Contact information
Investments
On Callum Stewart's radar
May 06, 2025
Accelerating Global Expansion and AI Leadership
Bullhound Capital invests in Quantum Systems
March 11, 2025
Integrating AI into business strategy
Beyond the Code – When engineers understand the practitioner
February 05, 2025
GP BULLHOUND 2024 PROMOTIONS ANNOUNCED
GP Bullhound announces five senior promotions
January 09, 2025
GP BULLHOUND RELEASES TECHNOLOGY PREDICTIONS 2025 REPORT