Investment thesis
Defiant is a European venture fund with offices in London and Lisbon that invests early in B2B software and fintech companies. It has built the firm around data, software and deep thematic research, describing its strategy as product-centric rather than a conventional venture model, and it makes the founder tools it builds freely available.
Past investments
| Company | Round | Date | Round size |
|---|---|---|---|
| Rivia Zurich, Switzerland | Series A | Mar 2026 | €13M |