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Stefan Mahlstein

Investor profile

Angel

Stefan Mahlstein has backed 2 European tech companies across 2 funding rounds between 2021 and 2026, joining rounds totalling €2.6M. Most active in Edtech and Software. Data as of Nov 2026.

Deals
2
distinct rounds
Companies
2
backed
Active span
2021–2026
6 yrs
Total round €
€2.6M
sum of rounds joined

Deals by year

distinct rounds / year
Stefan Mahlstein — deals by year — interactive chart.
Data table
Stefan Mahlstein — deals by year
20211
20261

Top sectors

by deals
Stefan Mahlstein — top sectors — interactive chart.
Data table
Stefan Mahlstein — top sectors
Edtech1
Software1

Stages

by deals
Stefan Mahlstein — stages — interactive chart.
Data table
Stefan Mahlstein — stages
Other1
Seed1

Countries

by deals
Stefan Mahlstein — countries — interactive chart.
Data table
Stefan Mahlstein — countries
Sweden2

Co-investment network

shared rounds
Co-investment network — interactive chart.
Stefan Mahlstein — 2 dealsStefan MahlsteinChalmers Ventures — 1 shared deals · click to openChalmers VenturesE14 Fund — 1 shared deals · click to openE14 FundFirst Gate Invest — 1 shared deals · click to openFirst Gate InvestIndustrifonden — 1 shared deals · click to openIndustrifondenJacob De Geer — 1 shared deals · click to openJacob De GeerJan Sparud — 1 shared deals · click to openJan SparudJonas Eriksson — 1 shared deals · click to openJonas ErikssonLänsförsäkringar Göteborg & Bohuslän — 1 shared deals · click to openLänsförsäkringar Göteborg & BohuslänMach One — 1 shared deals · click to openMach OneMagnus Lundgren — 1 shared deals · click to openMagnus LundgrenPetter Eriksson — 1 shared deals · click to openPetter ErikssonStaffan Truvé — 1 shared deals · click to openStaffan TruvéYuncture — 1 shared deals · click to openYuncture

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 €
VesiroSweden1€1.6M
MeitnerSweden1€1.0M

Biggest deals

top 10 by amount
CompanyStageAmountDate
VesiroSeed€1.6M2026-02
MeitnerOther€1.0M2021-12
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