Harry Grieve

Co-founder & CTO at Gensyn

📍 United Kingdom🔄 Updated September 2026💼 6 investments📅 5 years investing🗓 Last invested Feb 2024
VC🌍 United Kingdom
6
Total investments
5
Early stage
0
Mid stage
0
Late stage
5y
Years active

Portfolio

6 investments · sorted by recency
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Late stage
Angel Investor
Feb 2024
At Polari Group, we believe that the next sexual revolution will be in anorectal health. Currently it takes up to 30 minutes to prepare for anorectal intercourse, using the method called anal douching. This prevents spontaneity and affects romantic relationships. Our team develops category-defining consumer products to make the preparation for anorectal intercourse hassle-free. Anorectal health has been overlooked for too long and the Polari Labs is here to change that.
Angel Investor
Jul 2023
Modulus Labs uses bleeding-edge cryptography to make AI accountable.
Angel Investor
May 2022
Catapult is AI built uniquely for you, with a deep understanding of your work across every email, message, doc, meeting, transcript and more. Catapult remembers, learns, and evolves with you, helping you achieve more than you ever thought possible. We’re a focused team of founders, researchers, and engineers. Between us, weve led teams rolling out new products at Meta, built multiple startups, published papers in leading journals, taught AI at Cambridge, worked at AWS, TikTok, Imperial and UCL, and pioneered frontier technology - from quantum random number generators to privacy-focused, local coding agents.
Angel Investor
Jan 2022
Over-collateralized lending in DeFi is capital inefficient. We’re on a mission to change that.
Angel Investor
Apr 2021
Our clinical grade voice biomarkers power a health and safety infrastructure layer for all voice communications - actively partnering across telecomms, telehealth, LLM providers, automotive, aviation, defence and more. Voice is everywhere. We ensure every conversation is safe.
Angel Investor
Feb 2021
Various board memberships
Experience · 12 entries
All (12)
Investments (6)
Founder (3)
2024
Angel Investor
Feb 2024
At Polari Group, we believe that the next sexual revolution will be in anorectal health. Currently it takes up to 30 minutes to prepare for anorectal intercourse, using the method called anal douching. This prevents spontaneity and affects romantic relationships. Our team develops category-defining consumer products to make the preparation for anorectal intercourse hassle-free. Anorectal health has been overlooked for too long and the Polari Labs is here to change that.
2023
Angel Investor
Jul 2023
Modulus Labs uses bleeding-edge cryptography to make AI accountable.
2022
Angel Investor
May 2022
Catapult is AI built uniquely for you, with a deep understanding of your work across every email, message, doc, meeting, transcript and more. Catapult remembers, learns, and evolves with you, helping you achieve more than you ever thought possible. We’re a focused team of founders, researchers, and engineers. Between us, weve led teams rolling out new products at Meta, built multiple startups, published papers in leading journals, taught AI at Cambridge, worked at AWS, TikTok, Imperial and UCL, and pioneered frontier technology - from quantum random number generators to privacy-focused, local coding agents.
Angel Investor
Jan 2022
Over-collateralized lending in DeFi is capital inefficient. We’re on a mission to change that.
2021
Angel Investor
Apr 2021
Our clinical grade voice biomarkers power a health and safety infrastructure layer for all voice communications - actively partnering across telecomms, telehealth, LLM providers, automotive, aviation, defence and more. Voice is everywhere. We ensure every conversation is safe.
Show all 12 entries ↓
Investment activity
2021–2024 · 6 investments
20212202222023120241
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