Leo Castellanos
Innovation, Growth & Investment
London, England, United Kingdom
Summary
👤
Senior🎓
Top SchoolLeo Castellanos is an innovation and investment leader based in London with a decade-plus track record founding, advising, and backing early-stage tech companies across fintech, edtech and SaaS. As Co‑Founder and Director of Comparabien and a current lead in Innovation, Growth & Investment at Innovate UK, he combines hands‑on business development and international expansion experience with LP and active angel investing roles across multiple exits and acquisitions. He has built and managed venture portfolios from the ground up (SAATCHiNVEST) and serves as a guest lecturer and mentor bridging academic programs and practical venture-building. A passionate open-source developer in spirit, he pairs technical empathy with commercial judgement—favoring founder-led teams with early product traction and data. Unusually, his background blends corporate consulting, incubation management and formal VC training (Harvard, LBS, Cass), giving him fluency in both deal mechanics and operational scaling.
8 years of coding experience
11 years of employment as a software developer
Growth Hacking Marketing, Growth Hacking Marketing at Growth TribeBusiness School Managing Strategic Value of Innovations, Business School Managing Strategic Value of Innovations at Imperial College LondonExecutive MBA (Distinction) Strategy and Finance, Executive MBA (Distinction) Strategy and Finance at Cass Business School5 year degree (Master equivalent) Public Accounting, 5 year degree (Master equivalent) Public Accounting at Universidad 'Santa María'Executive Education Private Equity and Venture Capital, Executive Education Private Equity and Venture Capital at Harvard Business SchoolNewton Venture Programme - Fellowship Venture Capital, Newton Venture Programme - Fellowship Venture Capital at London Business SchoolDigital Marketing Marketing, Digital Marketing Marketing at General AssemblyThe Role of the Non-Executive Director, The Role of the Non-Executive Director at Institute of Directors (IoD)
English, Spanish
Github Skills (14)
react6
management6
validation6
flutter6
joi5
schema-validation5
state-management5
ajv5
sanitization5
dart4
schema4
validations4
json-schema4
zod3
Programming languages (4)
Github contributions (5)
Leoocast/reactter
Mar 2022 - Apr 2022
A light state management for Flutter with React syntax.
Contributions:1 release, 52 commits, 3 PRs in 29 days
reactstate-managementlightdartflutter
Leoocast/Prakma
Aug 2020 - May 2021
Contributions:2 releases, 40 commits, 43 pushes in 9 months
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