Thierry Vandewalle
Venture Partner Europe @ Isai
Brussels, Belgium
Thierry Vandewalle is a Series A investor at Isai in Brussels focused on Software and SaaS. Thierry Vandewalle - Founding Partner @ Wind Capital
- Total investments:
- 24
- Last investment:
- Lead investor:
- 42%
Last updated:
For AI agents: llms.txt
Industries Thierry Vandewalle invests in
Stages Thierry Vandewalle invests in
Countries Thierry Vandewalle invests in
Round sizes
Contacts
| Type | Contact | Validation |
|---|---|---|
| Work email | ||
| Personal email | ||
| Work phone | ||
| Personal phone | ||
| Socials |
Round size
- Seed
- $800k–$9.8M
- Series A
- $2.5M–$19M
- Series B
- $19M–$20M
Investment Focus
Industry
- Software 5 (21%)
- SaaS 4 (17%)
- FinTech 2 (8%)
- Internet 2 (8%)
- Human Resources 2 (8%)
Stage
- Series A 10 (42%)
- Seed 7 (29%)
- Series B 3 (13%)
- Pre-Seed 1 (4%)
- Venture - Series Unknown 1 (4%)
Country
- France 13 (54%)
- Brazil 1 (4%)
- Germany 1 (4%)
- United States 1 (4%)
Investments
| Company | Description | Round | Links |
|---|---|---|---|
| Blue Activity GmbH is a CleanTech startup that specializes in sustainable industrial water treatment for evaporative cooling systems, replacing environmentally harmful chemical biocides with natural microorganisms and biopolymers. It provides a complete service package, including 100% sustainable products, real-time online monitoring via dashboard,and tailored on-site support for worry-free operations. | $9.8M / Seed / Mar 17, 2026 | ||
| Keey Aerogel is the exclusive manufacturer of silica aerogel produced from construction waste through a closed-loop process that recycles carbon dioxide and ethanol. | $18.8M / Series A / Jan 28, 2025 | ||
| Wecasa is a data-driven marketplace that revolutionizes care services by focusing on user experience for customers and professionalsWecasa's mission is to make care services simple and accessible for a better quality of life. Through its app, users can book in seconds a reliable Professional for care services at home: wellness (haircut,beauty, massage), cleaning, and childcare. Available in Paris, top cities in France, London, and more European cities to come. Wecasa is proud to help 100.000+ customers and increase the business of 3000 independent professionals. | $19M / Series B / Dec 05, 2024 | ||
| Medicines and pharmaceutical solutions for libido, testosterone and menopause | $800K / Seed / Oct 01, 2024 | ||
| Digital Adoption Plateform In-app learning Platform Enterprise Software Adoption | $2.9M / Seed / Jun 20, 2022 | ||
| Vendredi develop your skills in innovative structures that make our society more beautiful. | $4.8M / Series A / Mar 24, 2022 | ||
| Silvr reinvents the way entrepreneurs get funded. Financing businesses has not evolved over the last decades: banks prefer to fund assets, and equity is not the best fit for all. Silvr enables entrepreneurs by building a world where funding is easy to access, scalable, and equity-free. Silvr leverages digital business data to predict futurerevenues and offer funding in 24 hours.Silvr is headquartered in Paris, is backed by ISAI and Eurazeo, and deploys millions of euros of funding for European entrepreneurs every month. | $20.6M / Series A / Feb 08, 2022 | ||
| Wecasa is a data-driven marketplace that revolutionizes care services by focusing on user experience for customers and professionalsWecasa's mission is to make care services simple and accessible for a better quality of life. Through its app, users can book in seconds a reliable Professional for care services at home: wellness (haircut,beauty, massage), cleaning, and childcare. Available in Paris, top cities in France, London, and more European cities to come. Wecasa is proud to help 100.000+ customers and increase the business of 3000 independent professionals. | $17.8M / Series A / Jul 08, 2021 | ||
| Expensya provides a web and mobile solution that automates expense management for businesses. The platform overcomes issues inherent to contemporary professions and automates expense reports management from the receipt stage to its archiving, by introducing technologies such as the Cloud, Artificial Intelligence, Machine Learning, Big Data, andBusiness Intelligence. It is translated in eight languages and adapts to the local accounting rules of approximately fifty countries, and to the specific needs of companies. The company was co-founded in 2014 by Karim Jouini and Jihed Othmani. | $20M / Series B / Apr 30, 2021 | ||
| Silvr reinvents the way entrepreneurs get funded. Financing businesses has not evolved over the last decades: banks prefer to fund assets, and equity is not the best fit for all. Silvr enables entrepreneurs by building a world where funding is easy to access, scalable, and equity-free. Silvr leverages digital business data to predict futurerevenues and offer funding in 24 hours.Silvr is headquartered in Paris, is backed by ISAI and Eurazeo, and deploys millions of euros of funding for European entrepreneurs every month. | $3.6M / Seed / Mar 10, 2021 | ||
| See all 24 investments → | |||
Co-Investors
About Isai
Isai is a tech entrepreneurs' fund that focuses on early-stage internet startups and small capital tech private equity deals. It seeks to invest in companies operating in the software, information technology, media, and industrial sectors. It brings together more than 300 tech entrepreneurs who have decided to invest their money and theirexperience in order to allow the emergence of new French Tech champions.Founded in 2010, Isai is headquartered in Paris, France.
Isai Contacts
| Name | Phone | Socials | |
|---|---|---|---|
Christophe Poupinel
Operating Partner
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Francois Collet
Partner
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Geoffroy Roux de Bezieux
Co-Founder
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Jean-David Chamboredon
Co-founder & CEO
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Pierre Kosciusko-Morizet
Co-Founder & Chairman
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FAQ
What does Thierry Vandewalle invest in?
Thierry Vandewalle invests primarily in Software, SaaS and FinTech startups, most often at Series A and Seed stage. Most of the 24 investments tracked by Shizune back companies in France. The Investment Focus section breaks down every industry, stage and country in the portfolio.
What is Thierry Vandewalle's check size?
Thierry Vandewalle typically joins rounds of $800k–$9.8M at Seed, $2.5M–$19M at Series A and $19M–$20M at Series B. These ranges are 10th–90th percentile round sizes calculated from confirmed public funding rounds, so they are a realistic guide to the rounds Thierry Vandewalle participates in.
How do I contact Thierry Vandewalle?
Public channels for Thierry Vandewalle include LinkedIn. For a verified work email and phone number, create a free Shizune account — contact data is searched across 20+ sources and validated before delivery, so your outreach lands in the right inbox.
When did Thierry Vandewalle last invest?
The most recent investment recorded for Thierry Vandewalle closed in Mar 2026. Shizune tracks 24 investments in total for this profile, including round sizes, stages and portfolio companies, all sourced from confirmed public funding rounds and refreshed monthly.
Is Shizune's investor data accurate?
Yes — every stat on this profile is calculated from confirmed public funding rounds monitored across hundreds of sources since 2020. This profile was last refreshed in Oct 2026 and is updated monthly. Spotted something off? Use the “Suggest an edit” link near the top of the page.
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