About StackOne
StackOne is a company based in London (United Kingdom) founded in 2023 by Romain Sestier and Guillaume Lebedel.. StackOne has raised $23.91 million across 3 funding rounds from investors including Google Ventures, Workday Ventures and XTX Markets. StackOne operates in a competitive market with competitors including Paragon, OpenLegacy, Cloud Elements, Pipedream and Kloudless, among others.
- Headquarter London, United Kingdom
- Founders Romain Sestier, Guillaume Lebedel
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Sectors
Technology
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Phone
*********
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Website
*********
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Social
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Annual Revenue
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Net Profit
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EBITDA
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Total Equity Funding
$23.91 M (USD)
in 3 rounds
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Latest Funding Round
$20 M (USD), Series A
May 06, 2025
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Investors
Google Ventures
& 7 more
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Employee Count
Employee Count
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Software Development Team
3 people
Leadership Team
2 people
Sales and Marketing
1 people
Co Team
1 people
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Funding Insights of StackOne
StackOne has successfully raised a total of $23.91M across 3 strategic funding rounds. The most recent funding activity was a Series A round of $20 million completed in May 2025. This substantial capital infusion reflects strong investor confidence in the company's business model, growth potential, and market opportunities. The funding enables strategic expansion, product development, market penetration, and operational scaling to drive long-term value creation and competitive advantage.
- Total Funding Total Funding
- Total Rounds 3
- Last Round Series A — $20.0M
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First Round
First Round
(24 Mar 2023)
- Investors Count 8
| Date | Amount | Transaction Name | Valuation | Lead Investors | Investors |
|---|---|---|---|---|---|
| May, 2025 | Amount | Series A - StackOne | Valuation | Google Ventures | |
| Mar, 2024 | Amount | Seed - StackOne | Valuation | Episode 1 Ventures | |
| Mar, 2023 | Amount | Seed - StackOne | Valuation |
investors |
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| Date | Amount | Transaction Name | Valuation | Lead Investors | Investors |
|---|---|---|---|---|---|
| Jul, 2021 | Amount | Post-IPO - Grab | Valuation |
investors |
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| Feb, 2021 | Amount | Post-IPO - Grab | Valuation |
investors |
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| Jan, 2021 | Amount | Post-IPO - Grab | Valuation |
investors |
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| Feb, 2021 | Amount | Post-IPO - Grab | Valuation |
investors |
Investors in StackOne
StackOne has secured backing from 8 investors, including venture fund, institutional, and angel investors. Prominent investors backing the company include Google Ventures, Workday Ventures and XTX Markets. This diverse investor base provides strategic capital, industry expertise, and valuable network connections that support the company's growth initiatives, market expansion, and long-term value creation.
| Investor | Description | Founded Year | Domain | Location |
|---|---|---|---|---|
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Corporate backed venture capital fund investing in multiple sectors
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Founded Year | Domain | Location | |
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Early to growth-stage firms are invested in by Workday Ventures.
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Founded Year | Domain | Location | |
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Seed & early-stage tech-focused venture capital firm
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Founded Year | Domain | Location |
| Investor | Description | Founded Year | Domain | Location |
|---|---|---|---|---|
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Single family office of Amitabh Bachchan, founder of Amitabh Bachchan Corporation or AB CORP
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Founded Year | Domain | Location | |
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Startup ecosystems are ignited through strategic investments by Signite Partners.
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Founded Year | Domain | Location | |
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Venture capital is directed toward companies in multiple sectors.
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Founded Year | Domain | Location | |
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Venture capital is invested in cybersecurity, fintech, and AI startups.
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Founded Year | Domain | Location |
Investments & Acquisitions by StackOne
| Company Name | Description | Domain | Location | Founded Year | Amount |
|---|---|---|---|---|---|
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Bionic investment advisor platform
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2016 | ||||
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Fine Asian gourmet food is offered by an internet-first restaurant.
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2016 | ||||
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Physical e-commerce kiosks are deployed for rural purchases in Indonesia.
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2014 | ||||
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Fine Asian gourmet food is offered by an internet-first restaurant.
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2016 |
Financial Statements - StackOne
| Date | Amount | Transaction Name | Valuation | Lead Investors | Investors |
|---|---|---|---|---|---|
| Jul, 2021 | Amount | Post-IPO - Grab | Valuation |
investors |
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| Feb, 2021 | Amount | Post-IPO - Grab | Valuation |
investors |
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| Jan, 2021 | Amount | Post-IPO - Grab | Valuation |
investors |
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| Feb, 2021 | Amount | Post-IPO - Grab | Valuation |
investors |
Stackone Comparisons
Competitors of StackOne
StackOne operates in a dynamic and competitive business environment, facing competition from various established players and emerging companies in the market. The competitive landscape includes prominent companies such as Paragon, OpenLegacy, Cloud Elements, Pipedream and Kloudless, among others. This competitive environment drives innovation, market differentiation, and strategic positioning as companies strive to capture market share and deliver value to their customers. Understanding the competitive dynamics is crucial for assessing market positioning, identifying growth opportunities, and navigating the challenges inherent in a competitive marketplace.
| Company Name | Domain | Founded year | HQ Location | Description |
|---|---|---|---|---|
| domain | founded_year | HQ Location |
API integration solutions are facilitated via a workflow platform.
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| domain | founded_year | HQ Location |
Legacy systems are modernized via open-source API integration platforms.
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| domain | founded_year | HQ Location |
API integration platform
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| domain | founded_year | HQ Location |
Cloud-based API integration platform for event-driven workflows is offered.
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| domain | founded_year | HQ Location |
Cloud storage services are unified through API integration platform.
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| domain | founded_year | HQ Location |
API integration and automation solutions are provided for developers.
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| Company Name | Domain | Founded year | HQ Location | Description |
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| domain | founded_year | HQ Location |
Multiple services are booked via an app-based platform.
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| domain | founded_year | HQ Location |
On-demand services are booked through an app-based platform.
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| domain | founded_year | HQ Location |
App based platform offering on demand delivery and ride-hailing services
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| domain | founded_year | HQ Location |
Operates an on-demand hyperlocal delivery app for food and groceries.
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Latest news on Stackone
Frequently Asked Questions about StackOne
When was StackOne founded?
StackOne was founded in 2023.
Where is StackOne located?
StackOne is headquartered in London, United Kingdom. It is registered at London, England, United Kingdom.
Who is the current CEO of StackOne?
Romain Sestier is the current CEO of StackOne. They have also founded this company.
Is StackOne a funded company?
StackOne is a funded company, having raised a total of $23.91M across 3 funding rounds to date. The company's 1st funding round was a Seed of $310.41K, raised on Mar 24, 2023.
What does StackOne do?
Universal integration layer provided for modern products via unified APIs.
Who are the top competitors of StackOne?
StackOne's top competitors include Paragon, OpenLegacy and Cloud Elements.
Who are StackOne's investors?
StackOne has 8 investors. Key investors include Google Ventures, Workday Ventures, XTX Markets, Episode 1 Ventures, and Playfair.
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