Sebastien Breteau is an angel investor and operator angel based in United Kingdom with 10 known investments: Asana, Marqeta, klassroom, InnovaFeed, REWORTH, ElevateBio, Fluicity, Glose, Sundayapp and Ziwig.
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Investment focus
- Stage
- Seed
- Focus
- Application Performance ManagementBiotechClean EnergyEdTechProductivityQuality Control
Contacts
Sebastien Breteau portfolio companies (10)
- Asana
- Marqeta
- klassroom
- InnovaFeed
- REWORTH
- ElevateBio
- Fluicity
- Glose
- Sundayapp
- Ziwig
Affiliated funds' portfolios
Founder & CEO at QIMA, whose known portfolio counts 2 companies
- BeZero Carbon
- Kavida.ai
Investor Profile
The listing covers sectors Climate, Education, Healthcare and SaaS, and focus areas Application Performance Management, Biotech, Clean Energy and EdTech. Startups operating in these areas may find Sebastien Breteau relevant.
Sebastien Breteau appears in Seed rounds across the known deals.
Reviewing the investment history helps decide whether there is a realistic fit before reaching out.
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Frequently asked questions
Who is Sebastien Breteau?
Sebastien Breteau is an angel investor and operator angel based in United Kingdom with 10 known investments on file, among them Asana, Marqeta and klassroom. The sections above list the sectors, stages and firms attached to that record.
What does Sebastien Breteau invest in?
Listed sectors include Climate, Education, Healthcare and SaaS; listed focus areas include Application Performance Management, Biotech, Clean Energy and EdTech. Those tags come from the companies attached to this profile, so they read as a record of what has been backed rather than a stated preference for what comes next.
What stage does Sebastien Breteau invest at?
The known deals of Sebastien Breteau include Seed rounds. Stage is the strongest single filter when you build a target list: an investor with no record at your stage rarely starts with you.
Which firm is Sebastien Breteau listed at?
Sebastien Breteau is listed as Founder & CEO at QIMA, whose known portfolio counts 2 companies.
How do I contact Sebastien Breteau?
An email address, a phone number and a LinkedIn page are on file for Sebastien Breteau. The address stays masked on this page and is readable inside RaiseHunt after you create an account.
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Data: RaiseHunt investor dataset · Snapshot 5 September 2026 · How this data is built · Report a correction or request removal