Mandeep Singh
About Mandeep Singh
Mandeep Singh is a London-based angel investor. Crunchbase describes him as the founding CEO of Trouva, and PitchBook says he founded Trouva and served as its chief executive and a board member. Before that, PitchBook says he worked at BC Partners and at OC&C Strategy Consultants.
PitchBook also lists his board roles as Foxtons, Amnesty International and Thrift+. Crunchbase lists a past role as non-executive director at Thrift+. His NFX Signal profile lists Amnesty International as a non-executive and international board director role.
His current investing roles include venture partner at Hoxton Ventures, which Crunchbase dates to 2024. His NFX Signal profile lists him as an Andreessen Horowitz scout since 2025 and an entrepreneur-in-residence at Founders at the University of Cambridge since 2024. That profile also describes him as a Top 5 AI angel in Europe in the Sifted AI100 and a Top 25 person in tech in Europe on Crunchbase. These are his own words, and we have not verified them.
Crunchbase's public profile for Mandeep Singh shows 77 personal investments and 76 portfolio companies. PitchBook lists 80 investments, and his NFX Signal profile lists 87 on record. The counts differ by source and date. Lounge's earlier Crunchbase snapshot showed 39 investments, 0 lead investments, 0 exits and 0 companies founded.
Crunchbase dates several of his angel roles. They include Fonoa (2020), incident.io (2021), Doubleword and 11x (both 2022), and Wordsmith AI (2024). His NFX Signal profile also lists Sequence, Omnipresent, Yassir, Acin (acquired by CUBE) and Dwelly among his angel or investor positions.
PitchBook's latest recorded deal for him is Warden AI on 16 July 2025. The Crunchbase page lists Zaro, a pre-seed round, as his latest investment. On NFX Signal, Zaro is shown as a $5M pre-seed round in June 2026 and Zalos as a $4M seed round in March 2026.
Crunchbase data in Lounge's records shows 28 AI investments since 2023. Named AI companies in that record are Bluebook, Maze, Silurian AI, Convergence Labs, Anterior, Fractile, Stackfix, Unify, Doubleword, Lio, katch and Trigger.dev.
Other public profiles add more AI-related names. Crunchbase lists Wordsmith AI and Droidrun, and its activity feed shows CuspAI, Epiminds, Afori, Jack & Jill AI, Workflow and Dwelly. NFX Signal also lists Galileo AI, 11x and Cursive. PitchBook shows Warden AI, Workflow Design and Convergence.
Crunchbase shows him alongside Patrick Gelsinger as investors in the Fractile round. It shows him with Octopus Ventures on a Maze round and with 3 other investors on the Silurian AI round.
Most of his recorded deals are early stage. Crunchbase and NFX Signal label recent ones as pre-seed or seed, for example Zaro (pre-seed), Zalos (seed), Newly (pre-seed), Heywa Labs (seed), Spiich Labs (pre-seed), Jack & Jill AI (seed), Afori (pre-seed) and Epiminds (seed).
On NFX Signal he gives a check range of $5K to $25K, with a sweet spot of $20K. This is self-reported on that platform and may change. The same profile says he is most interested in European founders. He also writes that he does not tend to invest in life sciences, gaming, crypto, D2C or non-tech companies, and that he wants to be a helpful angel on the cap table. Crunchbase records no lead investments, so he usually joins rounds alongside other investors.
His portfolio covers AI applications, AI infrastructure and hardware (Fractile), AI for materials science (CuspAI) and developer tooling (Trigger.dev, Stackfix).
- Fractile: AI hardware company. Crunchbase shows him investing alongside Patrick Gelsinger.
- Maze: a company he backed in a round with Octopus Ventures, listed in his AI portfolio.
- Anterior: AI company in his portfolio, with a round recorded on Crunchbase in 2023.
- Silurian AI: AI company. Crunchbase shows him in its round with 3 other investors.
- Convergence Labs: AI company in his Crunchbase AI portfolio.
- Bluebook: AI company in his Crunchbase AI portfolio.
- Doubleword: Crunchbase lists him as an angel investor since 2022.
- Wordsmith AI: Crunchbase lists him as an angel investor since 2024.
- Jack & Jill AI: a $20M seed round in October 2025 is listed on NFX Signal.
- Epiminds: a $7M seed round in October 2025 is listed on NFX Signal.
AI portfolio
Investing activity
Mandeep Singh has made 39 investments according to Crunchbase. 28 of those investments since 2023 were in AI companies, including Bluebook, Maze, Silurian AI, Convergence Labs and Anterior.
Mandeep Singh appears in 2 AI deals tracked by the Lounge deals desk. The rounds are mostly Pre-seed and Seed, with a median round size of $5M. The most recent are Zaro (Pre-seed, $5.1M, Jun 2026) and Zalos (Seed, $3.6M, Mar 2026).
Mandeep Singh most often invests alongside Cherry Ventures, Thomas Dohmke, Thomas Wolf and Charlie Songhurst, and the companies they back on Lounge are mostly in AI.
Deals
Frequently asked questions about Mandeep Singh
Who is Mandeep Singh, the London angel investor?
He is a London-based angel investor and venture partner at Hoxton Ventures. He was the founding CEO of Trouva and has sat on the boards of Foxtons, Amnesty International and Thrift+.
What size check does Mandeep Singh write?
His NFX Signal profile gives a range of $5K to $25K with a sweet spot of $20K. He has self-reported this, so confirm it with him directly.
What stage of AI startup does Mandeep Singh invest in?
His recorded deals are mostly pre-seed and seed. Examples include Zaro, Zalos, Jack & Jill AI and Epiminds.
Which AI companies has Mandeep Singh backed?
Crunchbase data lists Bluebook, Maze, Silurian AI, Convergence Labs, Anterior, Fractile, Stackfix, Unify, Doubleword, Lio, katch and Trigger.dev. Other profiles also show Wordsmith AI, CuspAI and Jack & Jill AI.
Does Mandeep Singh invest outside Europe?
His NFX Signal profile says he is most interested in European founders. His public profiles do not set a firm geographic limit.
What does Mandeep Singh not invest in?
On NFX Signal he writes that he does not tend to invest in life sciences, gaming, crypto, D2C or non-tech companies.
Is Mandeep Singh an angel investor?
Yes. Mandeep Singh invests personally as an angel. Crunchbase counts 39 investments.
What AI companies has Mandeep Singh invested in?
Mandeep Singh's AI investments include Bluebook, Maze, Silurian AI, Convergence Labs, Anterior, Fractile, Stackfix and Unify. The 2 rounds on Lounge are listed on this page with amounts, dates and co-investors.
Where is Mandeep Singh based?
Mandeep Singh is based in London, United Kingdom.
What stage does Mandeep Singh invest at?
In the rounds tracked on Lounge, Mandeep Singh has invested at Pre-seed and Seed, with a median round of $5M.