Romain Sestier
Founder · StackOne · London, England, United Kingdom
Contact Details
Companies
Why reach out now
Fresh capital means vendor and tool decisions are happening right now.
Open roles signal budget is being allocated across the org.
Most founders lock in key vendors within 60 days of closing a round.
About Romain Sestier
Romain Sestier is the founder of StackOne, a software development startup founded in 2023 and based in London, England, United Kingdom. The company most recently raised $20M in a Series A round (May 6, 2025). This profile is part of JustRaised — a verified database of funded founders updated daily for sales, recruiting and partnerships.
Why reach out to Romain now
Founders typically evaluate new tools, hire aggressively, and lock in vendor relationships within the first 90 days of closing a round. StackOne raised 391 days ago, putting Romain squarely inside that buying window. Reach out with a concise, relevant message that references the raise and the specific problem you solve for Software Development companies.
Frequently asked questions
- Who is Romain Sestier?
- Romain Sestier is the founder of StackOne, working in the software development space.
- How much did StackOne raise?
- StackOne raised $20M in a Series A round on May 6, 2025.
- How do I contact Romain?
- Verified email and LinkedIn for Romain Sestier are available on a JustRaised paid plan, alongside 1,000+ other recently funded founders.