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In 2025, StackOne's revenue reached $4.7M. Since its launch in 2023, StackOne has shown consistent revenue growth.
StackOne reached a $14.2M valuation in 2025, set during its M&A Offer round.
StackOne has raised $23.6M in total funding across 2 rounds, most recently a $20M Series A round in 2025.
| Year | Round | Amount | Valuation | % Sold | Source |
|---|---|---|---|---|---|
| 2025 | Series A | $20M | - | - | |
| 2025 | M&A Offer | - | $14.2M | - | |
| 2025 | M&A Offer | - | $14.2M | - |
| Question | Answer |
|---|---|
| What's your age? | - |
| Favorite online tool? | - |
| Favorite book? | - |
| Favorite CEO? | - |
| Advice for 20 year old self | - |
We do not have customer count information for StackOne yet.
StackOne employs approximately 43 people as of 2026.
StackOne generates an estimated $4.7M in annual revenue.
StackOne was founded by Romain Sestier.
The CEO of StackOne is Romain Sestier.
StackOne raised $23.6M across 2 rounds.
StackOne has 43 employees.
StackOne is headquartered in London, England, United Kingdom.
StackOne operates across multiple industries. Browse revenue, funding, and growth data for StackOne in each sector below.
All figures on this page are taken directly from interviews or are estimates from public sources and proprietary models. Not financial advice. Read full disclaimer.
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Valuation
$14.2M
2025 Revenue
$4.7M(Est.)
Funding
$23.6M
Team
43
Founded
2023
| Year | Milestone | Source |
|---|---|---|
| 2025 | StackOne Hit $4.7m revenue in September 2025 | Estimated |
| 2023 | Launched with $0 revenue |
| 2024 | Seed Round | $3.6M | - | - |
| Year | Milestone | Source |
|---|---|---|
| 2025 | Reached 43 employees (May 2025) |
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