Valuation
$14.2M
2025 Revenue
$4.7M
Funding
$23.6M
Team
43
Founded
2023
How StackOne CEO Romain Sestier grew StackOne to $4.7M revenue with a 43 person team in 2025.
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StackOne Revenue
In 2025, StackOne's revenue reached $4.7M. Since its launch in 2023, StackOne has shown consistent revenue growth.
| Year | Milestone | Quote |
|---|---|---|
| 2025 | StackOne Hit $4.7m revenue in September 2025 | |
| 2023 | Launched with $0 revenue |
StackOne Valuation, Funding Rounds
StackOne's most recent disclosed valuation is $14.2M.
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 | Quote |
|---|---|---|---|---|---|
| 2025 | Series A | $20M | - | - | |
| 2024 | Seed Round | $3.6M | - | - |
Founder / CEO
Q&A
| Question | Answer |
|---|---|
| What's your age? | - |
| Favorite online tool? | - |
| Favorite book? | - |
| Favorite CEO? | - |
| Advice for 20 year old self | - |
Customers
We do not have customer count information for StackOne yet.
StackOne Employees & Team Size
StackOne employs approximately 43 people as of 2026.
| Year | Milestone |
|---|---|
| 2025 | Reached 43 employees (May 2025) |
Frequently Asked Questions about StackOne
What is StackOne's revenue?
StackOne generates $4.7M in revenue.
Who founded StackOne?
StackOne was founded by Romain Sestier.
Who is the CEO of StackOne?
The CEO of StackOne is Romain Sestier.
How much funding does StackOne have?
StackOne raised $23.6M.
How many employees does StackOne have?
StackOne has 43 employees.
Where is StackOne headquarters?
StackOne is headquartered in London, England, United Kingdom.
Compare StackOne to the industry
StackOne operates across multiple industries. Browse revenue, funding, and growth data for StackOne in each sector below.
Data and Sources
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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