{"id":"63609c4c-3503-4ead-b0ba-7783678aff74","slug":"james-hennessey","name":"James Hennessey","bioBrief":"Founder and CEO of Hypermile, a London-based Y Combinator (S20) startup developing a retrofittable AI driver co-pilot (Hypermile Co-Pilot) that reduces diesel truck fuel consumption by ~11% and extends battery-electric vehicle range by ~15%. He has a background in computer vision and computer graphics, having served as Head of Computer Vision at Pupil, and previously worked at Adobe and Disney. He is an Entrepreneur First (EF1) alum and holds a PhD in Computer Vision and Computer Graphics from University College London. The company raised a $1.5M pre-seed round in 2021 from Y Combinator, Greg Brockman, and Luc Vincent; Hypermile was later acquired.","priorExits":null,"nationality":"British","verificationPosture":"reported","aliases":[],"sources":[{"url":"https://www.ycombinator.com/companies/hypermile","title":"Hypermile: Driver co-pilot to make trucking more efficient","sourceName":"Y Combinator"},{"url":"https://hypermile.ai/","title":"Hypermile - AI driver co-pilot for trucking","sourceName":"Hypermile (official)"}],"reviewStatus":"reviewed","createdAt":"2026-08-08T23:31:47.438Z","updatedAt":"2026-08-10T03:47:09.540Z","educations":[],"companyRoles":[{"id":"1470f896-5aa5-4ee9-ab14-a557b11a0151","personId":"63609c4c-3503-4ead-b0ba-7783678aff74","companyId":"adc4a90a-c6c1-47b6-b5a4-84bd2595bf66","role":"founder","roleTitle":"Founder & CEO","startDate":null,"endDate":null,"currentRole":true,"roleBasis":"verified_secondary","displayOrder":null,"createdAt":"2026-08-08T23:31:48.199Z","company":{"slug":"hypermile","name":"Hypermile"}}],"boardRoles":[],"investorRoles":[],"foundings":[{"id":"1fdebf22-2d3c-4778-8326-a2486b098288","personId":"63609c4c-3503-4ead-b0ba-7783678aff74","companyId":"adc4a90a-c6c1-47b6-b5a4-84bd2595bf66","foundingDate":null,"cofounderStatus":"cofounder","stillAtCompany":false,"createdAt":"2026-08-22T03:40:25.710Z","company":{"slug":"hypermile","name":"Hypermile"}}]}