The fifty days
A programme by 50K Ventures
A pre-seed sprint in which 50K Ventures co-builds a B2B AI SaaS product alongside the founder, pairing investment with hands-on engineering and go-to-market support.
At a glance
| Best for | B2B AI SaaS founders at pre-seed stage |
|---|---|
| Format | In person |
| Cost | Takes equity |
About The fifty days
The fifty days is 50K Ventures' way of working with a founder at pre-seed stage. Rather than writing a cheque and advising from a distance, the team brings capital, build capacity and go-to-market support into one room and co-builds the product with the founder. The sprint runs in phases, and each phase has to reach a stated proof point before the next one starts, so the work moves forward on evidence rather than on a fixed timetable.
What you get
- A pre-seed investment on founder-friendly terms
- Hands-on engineering help to build the product, not just advice
- Go-to-market support delivered alongside the build
Who can apply
- Founders building B2B AI SaaS products at pre-seed stage
How to apply: Submit a short founder note through the apply form on the 50K Ventures site, describing the problem you are solving and what you can uniquely build.