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Karl Josef Seilern

Investor profile

Angel

Karl Josef Seilern has backed 1 European tech company across 1 funding round in 2025, joining rounds totalling €2.5M. Most active in Cleantech. Data as of 4 Nov 2026.

Deals
1
distinct rounds
Companies
1
backed
Active span
2025
1 yr
Total round €
€2.5M
sum of rounds joined

Deals by year

distinct rounds / year
Karl Josef Seilern — deals by year — interactive chart.
Data table
Karl Josef Seilern — deals by year
20251

Top sectors

by deals
Karl Josef Seilern — top sectors — interactive chart.
Data table
Karl Josef Seilern — top sectors
Cleantech1

Stages

by deals
Karl Josef Seilern — stages — interactive chart.
Data table
Karl Josef Seilern — stages
Other1

Countries

by deals
Karl Josef Seilern — countries — interactive chart.
Data table
Karl Josef Seilern — countries
Austria1

Co-investment network

shared rounds
Co-investment network — interactive chart.
Karl Josef Seilern — 1 dealsKarl Josef SeilernBernhard Niesner — 1 shared deals · click to openBernhard NiesnerChris Zemina — 1 shared deals · click to openChris ZeminaDaniel Dippold — 1 shared deals · click to openDaniel DippoldFelix Porsche — 1 shared deals · click to openFelix PorscheFiona Macintyre — 1 shared deals · click to openFiona MacintyreHanno Lippitsch — 1 shared deals · click to openHanno LippitschHenrik Piroth — 1 shared deals · click to openHenrik PirothIgnaz Forstmeier — 1 shared deals · click to openIgnaz ForstmeierLaura Warnier — 1 shared deals · click to openLaura WarnierSebastian Becker — 1 shared deals · click to openSebastian BeckerVital Laptenok — 1 shared deals · click to openVital Laptenok

Hover a node for shared-deal counts; click a co-investor to open its profile.

Best viewed on a larger screen.

Frequent co-investors

shared rounds

Portfolio

top 30 by total round €
CompanyCountryRoundsTotal €
HeizmaAustria1€2.5M

Biggest deals

top 10 by amount
CompanyStageAmountDate
HeizmaOther€2.5M2025-04
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