The entire startup ecosystem, in one place
Network, dataroom, startup profiles and fundraising. Founders, investors and mentors, together.
The startup ecosystem onefive is built for
Tools Designed for Entrepreneurs, by Entrepreneurs
Explore our tailored features to connect, grow, and succeed.
Social network
Founders, investors, and mentors. Verified profiles, before the dataroom and the raise.
Discussion
Share your thoughts, ask questions, and get feedback from the community. Connect with like-minded entrepreneurs facing similar challenges.
Spotlight
Discover incubators, accelerators, competitions, and other resources to power your startup. Onefive brings everything together for you.
Methodology
Avoid costly mistakes with exclusive resources: pitch templates, financial plans, and case studies. From ideation to scaling, Onefive has you covered.
Investment
Invest in tomorrow's startups or raise funds for your own. Onefive democratizes access to startup investments.
How it works
- 1
Create your account
Free, with Google, LinkedIn or an email address. Founder, investor, mentor or program: it is the same product, not two.
- 2
Say who you are
A verified profile, and for a company a startup page with the team and, if you choose, the cap table. It is what the others look at before replying to you.
- 3
Do what you came for
Ask founders at the same stage a question, open your dataroom to an investor one link at a time, find a program in Spotlight, read Le Tour de Table on Friday.
The French startup ecosystem in numbers
Onefive serves this ecosystem. Here is its size, as measured by the latest reference study.
18,000startups in France
530,000 direct jobs
€4.58bnraised in the first half of 2026
up 65% year on year
280funding rounds in the first half of 2026
10% fewer than in the first half of 2025
56%of startups are based outside the Paris region
Source : Baromètre 2026 de l'écosystème d'innovation français, France Digitale and EY, 8 September 2026
Frequently asked questions
What is onefive?
onefive is the platform for the French startup ecosystem, for the people building and the people funding. Five things live in one place: asking a peer a question, meeting the right people, sharing documents without losing sight of them, knowing what is happening, and running the numbers. Today all of that lives in a Drive, four WhatsApp groups, a Notion and two newsletters.
Who is onefive for?
Founders first, at pre-seed and seed. Also investors, business angels, mentors, experts and accelerator programs: founders and funders share one environment rather than two separate products.
How much does onefive cost?
€0. The full product, no charge. There is no paid plan and no billing today, and if options become paid later, core access stays free.
How does the dataroom work?
You upload your fundraising documents and decide who sees what, investor by investor. Links are signed and can expire, documents are versioned, and you can see who opened what, down to the second. No public URL.
How is this different from a Drive and a general professional network?
A Drive link forwards easily and revokes badly. A general network does not know what stage you are at. On onefive profiles are verified, conversations happen between founders at the same stage, and the dataroom lives in the same account as everything else.
What is Spotlight?
The directory of incubators, accelerators, contests, campuses and events across the French ecosystem. One entry per program: who it is for, what it gives you, where it happens, and how long you have to apply.
Is onefive available in France and in French?
Yes. France is the first market, and both the product and the content exist fully in French and English.
How do I create an account?
onefive is in pre-launch: access goes through a waitlist, and joining it is free. You get an email as soon as your spot opens, and you then create your account with Google, LinkedIn or an email address.
