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Gearoid O’Brien

Investor profile

Angel

Gearoid O’Brien has backed 1 European tech company across 1 funding round in 2025, joining rounds totalling €2.9M. Most active in AI. Data as of 4 Nov 2026.

Deals
1
distinct rounds
Companies
1
backed
Active span
2025
1 yr
Total round €
€2.9M
sum of rounds joined

Deals by year

distinct rounds / year
Gearoid O’Brien — deals by year — interactive chart.
Data table
Gearoid O’Brien — deals by year
20251

Top sectors

by deals
Gearoid O’Brien — top sectors — interactive chart.
Data table
Gearoid O’Brien — top sectors
AI1

Stages

by deals
Gearoid O’Brien — stages — interactive chart.
Data table
Gearoid O’Brien — stages
Pre-Seed1

Countries

by deals
Gearoid O’Brien — countries — interactive chart.
Data table
Gearoid O’Brien — countries
Ireland1

Co-investment network

shared rounds
Co-investment network — interactive chart.
Gearoid O’Brien — 1 dealsGearoid O’BrienAdam Wilson — 1 shared deals · click to openAdam WilsonAidan Corbett — 1 shared deals · click to openAidan CorbettAngus Miln — 1 shared deals · click to openAngus MilnEnterprise Ireland — 1 shared deals · click to openEnterprise IrelandJuho Parkkinen — 1 shared deals · click to openJuho ParkkinenMaria O’Brien — 1 shared deals · click to openMaria O’BrienMaurice O’Donoghue — 1 shared deals · click to openMaurice O’DonoghuePaul Forster — 1 shared deals · click to openPaul ForsterPierre-Antoine Porte — 1 shared deals · click to openPierre-Antoine PorteStudio VC — 1 shared deals · click to openStudio VC

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 €
OraionIreland1€2.9M

Biggest deals

top 10 by amount
CompanyStageAmountDate
OraionPre-Seed€2.9M2025-07
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