ACT Venture Capital Limited
ACT Venture Capital is a Dublin-based early-stage venture capital firm investing €500k–€20m from pre-seed through expansion into founder-led technology companies in the Irish and European tech ecosystem. Founded in 1994, it has backed 140 companies across six funds totalling approximately €600m.
- Company typePrivate
- Founded1994
- HeadquartersDublin, Ireland
- Headcount—
- GTM typeB2B
- OfferingServices
What ACT Venture Capital Limited does
ACT Venture Capital Limited is a Dublin-based, Ireland-domiciled private venture capital firm founded in 1994 that invests in early-stage technology companies primarily across the Irish and European tech ecosystems. The firm operates a generalist investment model targeting founder-led teams, deploying capital from pre-seed through expansion stages with typical check sizes of €500,000 to €20 million per portfolio company. Across six fund vehicles ACT has raised approximately €600 million and backed 140 companies. The latest fund, ACT VI, reached first close in 2022 at €140 million and targets roughly 35 portfolio companies with around 75% allocated to seed-stage deals, supported by a sidecar arrangement with Enterprise Ireland for seed investments.
ACT's offering to portfolio companies is investment capital paired with board participation and ongoing strategic guidance, drawn from a partner network with decades of venture experience in Ireland, Europe and the US. Institutional limited partners include the European Investment Fund, Enterprise Ireland, the Ireland Strategic Investment Fund (ISIF) and AIB, alongside undisclosed family offices. ACT's revenue model follows standard VC economics — management fees on committed AUM plus carried interest from successful exits — with notable realised exits including Decawave (acquired by Qorvo) and SilverCloud Health (acquired by Amwell in 2021).
The 10-person investment and operations team is led by Managing Partner John Flynn (with ACT since 1996), General Partners Debbie Rennick and John O'Sullivan, and Principals Conor Mills and Andrew O'Neill. Team credentials span CFA designations, the Kauffman Fellows programme (Class 26) and Big Four transaction services backgrounds, and the firm holds Diversity VC Standard Level One certification, is GDPR compliant, and has published an ESG policy in 2025.
ACT Venture Capital Limited firmographics
Firmographics- Name
- ACT Venture Capital Limited
- Legal name
- Act Venture Capital Ltd
- Website
- https://actventure.capital
- Company type
- Private
- Founded year
- 1994
- Operating status
- Operating
- Short description
- ACT Venture Capital is a Dublin-based early-stage venture capital firm investing €500k–€20m from pre-seed through expansion into founder-led technology companies in the Irish and European tech ecosystem. Founded in 1994, it has backed 140 companies across six funds totalling approximately €600m.
- Ownership category
- akta.pro rank
ACT Venture Capital Limited industry classification
Industry- Product category
- Venture Capital
- NAICS
- Portfolio Management and Investment Advice (523940), All Other Financial Investment Activities (52399)
- SIC
- Investment Advice (6282)
- akta.pro primary industry
- Early-Stage Venture Capital (Series A/B) (FSANAAAB)
- akta.pro secondary industry
- Late-Stage Venture Capital (Series C+) (FSANAAAC)
Keywords
Where ACT Venture Capital Limited is headquartered
LocationHeadquarters
- HQ city
- Dublin
- HQ country
- Ireland
- HQ region
- Europe
Offices1 record
Markets served
ACT Venture Capital Limited business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Operations, Marketing or Sales, Others
Revenue model
- Management Fees: VC firms typically charge management fees on committed capital under management
- Carried Interest: Performance-based returns from successful portfolio company exits
Go-to-market motion2 records
Distribution channels1 record
Marketing channels6 records
ACT Venture Capital Limited product offering
Product offeringCore offering
ACT Venture Capital provides early-stage venture capital investment, backing technology startups from seed through growth stages with check sizes ranging from €500k to €20m. The firm invests across 6 funds with €600m total capital raised and backs 140 portfolio companies, providing capital deployment alongside board participation, strategic support, and access to an extensive network of expertise.
Product overview
ACT Venture Capital is a generalist early-stage venture capital firm based in Dublin, Ireland. Rather than offering a technology product platform, the firm provides investment capital and strategic partnership services to early-stage technology companies. The investment offering spans from pre-seed through expansion funding, with typical check sizes between €500k and €20m. The firm has backed 140 companies across 6 funds with €600m raised. Services include deal sourcing, due diligence support, board participation, and portfolio company guidance through an extended network of expertise.
Differentiator
Problem solved
Functional benefit
Products and services
- ACT Venture Capital Investment Services Generalist early-stage venture capital investment services backing technology startups from pre-seed through expansion stages. Includes deal sourcing, due diligence support, board participation, and ongoing portfolio guidance. Typical investment range from €500k to €20m per company.
- ACT VI Fund Sixth investment fund of ACT Venture Capital with €140m raised at first close. Targets early-stage Irish and European tech companies, with 75% allocation to seed-stage investments. Provides equity capital alongside strategic guidance and board support.
- ACT Venture Capital Portfolio Company Support Ongoing strategic support and platform services provided to portfolio companies, including board participation, access to network of expertise, and guidance through scaling stages from pre-seed through to expansion and beyond €100m revenues.
Quantifiable outcome
- 140 companies backed with €600m raised across 6 funds
- +1 more outcomes
Companies that use ACT Venture Capital Limited
Customer profileNamed customers7 records
Segments2 records
Ideal customer profiles2 records
ACT Venture Capital Limited technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
ACT Venture Capital Limited partnerships and signals
Strategic signalScale indicators5 records
Recent moves5 records
Expansion highlights6 records
ACT Venture Capital Limited competitors and assessment
Company assessmentDirect peers
- Seedcamp: Seedcamp is a Europe-wide seed fund backing founders from day one through Series A. Comparable on stage breadth and the generalist-early-stage positioning that defines ACT's thesis.
- LocalGlobe: LocalGlobe is a UK seed-stage VC backing founders from inception across European markets. Comparable in stage focus, check size, and 'leading early, staying the course' philosophy espoused by ACT.
- Episode 1: London-based pre-seed and seed VC investing across UK/EU tech. Comparable in stage focus (seed-led) and generalist orientation to ACT, though with a UK rather than Ireland primary focus.
- Atlantic Bridge: Atlantic Bridge is an Ireland-and-UK-focused growth and early-stage tech investor. Directly comparable on transatlantic tech connectivity and stage band overlapping ACT's pre-seed through expansion range.
- Frontline Ventures: Frontline Ventures is an Ireland-and-Europe-focused early-stage VC that backs B2B software founders from pre-seed onward. Most directly comparable to ACT in geography, stage focus, and check-size band.
- Elkstone Capital: Elkstone is an Irish early-stage investor backing founders from seed through Series A across Irish and UK technology companies. Comparable mandate, geography, and fund era to ACT.
Broad incumbents
- Earlybird Venture Capital: Earlybird is a pan-European early-stage fund investing across seed through Series B in tech. Overlaps ACT's stage band and generalist European tech thesis but operates at materially larger fund scale.
- Octopus Ventures: Octopus Ventures is a large UK/European early-stage investor with multi-stage capacity and a much broader AUM base. Comparable at the portfolio-company level but operates at significantly greater scale than ACT.
Regional players
- Delta Partners: Delta Partners is an Irish early-stage investor that co-invests alongside ACT in rounds (e.g., Trustap, Provizio, Ubotica) and shares the Irish seed-and-early-stage mandate.
- NDRC: NDRC is an Irish-based early-stage investor/accelerator with public funding support. Comparable in Irish geography and very-early-stage activity, but supports founders through accelerators more than priced rounds.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat4 records
Key risks6 records
Key highlights7 records
Customer concentration
ACT Venture Capital Limited social profiles
Digital presenceACT Venture Capital Limited compliance and trust
Trust signalCompliance2 records
ACT Venture Capital Limited financial estimates
Financial estimateRevenue estimate
Valuation estimate
ACT Venture Capital Limited leadership team
Management profileNumber of profiles
Profiles10 records
ACT Venture Capital Limited funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
ACT Venture Capital Limited M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about ACT Venture Capital Limited
What does ACT Venture Capital Limited do?
ACT Venture Capital provides early-stage venture capital investment, backing technology startups from seed through growth stages with check sizes ranging from €500k to €20m. The firm invests across 6 funds with €600m total capital raised and backs 140 portfolio companies, providing capital deployment alongside board participation, strategic support, and access to an extensive network of expertise.
Is ACT Venture Capital Limited a public or private company?
ACT Venture Capital Limited is a private company. It is classified as management employee owned and is currently operating.
When was ACT Venture Capital Limited founded?
ACT Venture Capital Limited was founded in 1994.
Where is ACT Venture Capital Limited based?
ACT Venture Capital Limited is headquartered in Dublin, Ireland, in the Europe region.
How does ACT Venture Capital Limited make money?
Two revenue lines are on record. Management Fees are the primary driver. The others are carried Interest.
Who are ACT Venture Capital Limited's main competitors?
Direct peers on record are Seedcamp, LocalGlobe, Episode 1, Atlantic Bridge, Frontline Ventures and Elkstone Capital. Broad incumbents are Earlybird Venture Capital and Octopus Ventures. Regional players are Delta Partners and NDRC.
Does ACT Venture Capital Limited have an API?
No public API is recorded for ACT Venture Capital Limited.
What industry is ACT Venture Capital Limited in?
ACT Venture Capital Limited's product category is Venture Capital. Its primary akta.pro industry code is FSANAAAB, Early-Stage Venture Capital (Series A/B), with a secondary code of FSANAAAC, Late-Stage Venture Capital (Series C+). Its NAICS code is 523940 and its SIC code is 6282.