ACT Venture Capital
actventure.capital Direct investor
ACT Venture Capital is an Irish venture capital firm that invests in early-stage technology companies. It has backed over 140 companies and manages funds supported by the European Investment Fund.
ACT Venture Capital is a venture capital firm headquartered in Dublin, Ireland. It invests directly in companies, from seed to Series A, in AI/ML & Data, business Applications, cloud & Infrastructure and connectivity & IOT. €600m under management and 140 portfolio companies, as it reports.
“We back exceptional teams who truly understand their market”
— ACT Venture Capital, own website
- Layer
- Direct investor
- Type
- Venture capital
- Sectors
- AI/ML & Data, Business Applications, Cloud & Infrastructure, Connectivity & IOT, Deep Tech, E-Commerce, Energy & Climate, Fintech
- Assets under management
- €600m
- Portfolio
- 140 companies
Team, as ACT Venture Capital publishes it
- Debbie Rennick General Partner
- John Flynn Managing Partner
- John O’Sullivan General Partner
- Conor Mills Principal
- Andrew O’Neill Principal
- Mairead Roche Associate
- Lorraine Paton Financial Controller
- Cathy McBride Fund Accountant
- Sarah Matthews Accounts
- Shanice Callinan Office Manager
Names and roles exactly as listed on actventure.capital. Nothing else about these people is recorded.
Most shared portfolio companies with
Derived from portfolio pages both investors publish themselves: each pair below lists at least one company in common. 44 investors with a shared portfolio company. A shared company is not proof they invested together in the same round.
- Delta Partners 3 shared companies: hubli.com, mad-me.com, siriusxt.com
- Episode 1 Ventures 2 shared companies: edgetier.com, scurri.com
- Frontline Ventures 2 shared companies: umba.com, aqmetrics.com
- Molten Ventures 1 shared company: deciphex.com
- Seroba Life Sciences 1 shared company: deciphex.com
- Fountain Healthcare Partners 1 shared company: irishtimes.com
- NDRC 1 shared company: irishtimes.com
- Northzone 1 shared company: irishtimes.com
- Acurio Ventures 1 shared company: oblivious.com
- NAP 1 shared company: oblivious.com
and 34 more — the graph.
Where this comes from
Every fact above was read from a page ACT Venture Capital publishes itself. Nothing is taken from third-party databases. Investment activity (deals, co-investors) is not yet recorded.
- https://actventure.capital/name, is_investor, layer, type, hq_country, hq_city, stage_min, stage_max, thesis_quote, thesis_quote_page, description, aum, portfolio_count, status
- https://actventure.capital/portfoliosectors
- https://actventure.capital/who-we-arepeople
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Record 272 · added 2026-08-28 · link last verified 2026-10-21 · confidence high
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