AC

Act Venture Capital

VC
Dublin, IrelandWebsite

Act Venture Capital is a Seed, Series A venture capital firm based in Dublin, Ireland investing in SaaS, Other. The firm typically writes $500K–$3.0M checks and has 1 portfolio company in our records.

Check size
$500K–$3.0M
Portfolio
1 company on record
Partners
7 listed
AUM
$640M
Stage
Seed, Series A
Sectors
SaaS, Other
HQ
Dublin, Ireland

Last verified: 2026-07-10

How to approach: warm intro preferred
Stage

Seed, Series A

Check Size

$500K – $3.0M

AUM

$640M

Portfolio

1+ companies

Team

7 partners

Investor activity
Investments in last 12 months: 0

Investment Thesis

Investing in high-growth SaaS and B2B marketplaces with a focus on Europe.

How Act Venture Capital invests

Act Venture Capital is a vc firm based in Dublin, Ireland. The firm invests at the Seed, Series A stages, with a focus on SaaS, Other. It does not invest in Consumer Apps.

Act Venture Capital typically writes checks of $500K–$3.0M per investment, backed by approximately $640M in assets under management.

Act Venture Capital has backed 1 company in our records, including FlipDish.

Partners & Team

MR

Mairead Roche

Associate

JF

John Flynn

Managing Partner

JO

John O’Sullivan

General Partner

CM

Conor Mills

Principal

DR

Debbie Rennick

General Partner

AO

Andrew O’Neill

Principal

AJ

Andrew Jennings

Partner

B2B SaaS
Marketplaces

Industry Focus

Invests In

SaaS
Other

Does Not Invest In

Consumer Apps

Portfolio Companies (1)

Other

FL

FlipDish

Marketplace
How to pitch Act Venture Capital
  • Raising at Seed, Series A? You're squarely in their sweet spot.
  • Lead with your fit in SaaS, Other — the sectors they actively back.
  • Size your ask to their typical $500K – $3.0M check.
  • warm intro preferred
  • Address your outreach to a specific partner, such as Mairead Roche, Associate.
  • A warm introduction beats a cold email. Get matched and request an intro.

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