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Karl Büche

Investor profile

Angel

Karl Büche has backed 2 European tech companies across 2 funding rounds between 2023 and 2025, joining rounds totalling €500k. Most active in Agritech and Software. Data as of 4 Nov 2026.

Deals
2
distinct rounds
Companies
2
backed
Active span
2023–2025
3 yrs
Total round €
€500k
sum of rounds joined

Deals by year

distinct rounds / year
Karl Büche — deals by year — interactive chart.
Data table
Karl Büche — deals by year
20231
20251

Top sectors

by deals
Karl Büche — top sectors — interactive chart.
Data table
Karl Büche — top sectors
Agritech1
Software1

Stages

by deals
Karl Büche — stages — interactive chart.
Data table
Karl Büche — stages
Other1
Pre-Seed1

Countries

by deals
Karl Büche — countries — interactive chart.
Data table
Karl Büche — countries
Austria1
Germany1

Co-investment network

shared rounds
Co-investment network — interactive chart.
Karl Büche — 2 dealsKarl BücheAngel Invest Ventures — 1 shared deals · click to openAngel Invest VenturesAngels United — 1 shared deals · click to openAngels UnitedCalm Storm Ventures — 1 shared deals · click to openCalm Storm VenturesDominik Greiner — 1 shared deals · click to openDominik GreinerFounders of Europe — 1 shared deals · click to openFounders of EuropeHermann — 1 shared deals · click to openHermannJohannes Braith — 1 shared deals · click to openJohannes BraithMarkus Ertler — 1 shared deals · click to openMarkus ErtlerMichael Edtmayer — 1 shared deals · click to openMichael EdtmayerNiki Futter — 1 shared deals · click to openNiki Futter

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

Best viewed on a larger screen.

Portfolio

top 30 by total round €
CompanyCountryRoundsTotal €
mypaperworkAustria1€500k
HalmGermany1€0

Biggest deals

top 10 by amount
CompanyStageAmountDate
mypaperworkPre-Seed€500k2025-09
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