Bertrand Altmayer
Membre du Conseil de Surveillance at Asterion Ventures
Biarritz, Nouvelle-Aquitaine
Bertrand Altmayer, Membre du Conseil de Surveillance at Asterion Ventures is an active investor based in Biarritz, Nouvelle-Aquitaine. This profile covers what Bertrand Altmayer backs, at which stage, and how founders can reach out in 2026.
- Investor type
- AngelVCPEInvestment Partner
- Stages
- Early Stage VentureSeedSeries A
- Invests in
- Climate & Energy
- Location
- Biarritz, Nouvelle-Aquitaine
- Typical check
- $500K
- Past investments
- 5
Notable investments
ElectraHow to reach Bertrand Altmayer
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Round Funded. "Bertrand Altmayer." Round Funded investor database, updated September 9, 2026.
Stable URL, it will not change: https://www.roundfunded.com/en/investor/bertrand-altmayer
Frequently Asked Questions
What does Bertrand Altmayer invest in?
Bertrand Altmayer invests in Climate & Energy, typically at Early Stage Venture, Seed and Series A. Match your sector and stage, then reach out with a personalized pitch.
What stage does Bertrand Altmayer invest at?
Bertrand Altmayer typically invests at Early Stage Venture, Seed and Series A. Lead with traction that fits the stage when you reach out.
What is Bertrand Altmayer's typical check size?
Bertrand Altmayer typically writes checks around $500K. Use it as a signal for whether your raise fits their stage.
How do founders reach investors like this?
Round Funded lists active investors with verified, professional contact details for signed-up founders. Filter by sector, stage and location, then send a personalized pitch from your own inbox.
What is Round Funded?
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