Act Venture Capital
VC Fund
Dublin, Ireland
Act Venture Capital is a VC fund in Dublin focused on Software and Artificial Intelligence. Technology-focused, investing capital and expertise to fuel growth in the most promising ideas and companies. Raised c.€600m across multiple funds and invest from seed to growth.We look for companies with potentially cutting-edge, category-defining businesses in markets including application software, IT infrastructure, communications, Internetand mobile. We help founders create and scale businesses globally. We work as a small team with diverse strengths accessing a community of over 200 founders. The teams and companies we back scale their investor base as they scale their business execution and ambition. We work closely with them in this process. Over the past 25 years have built a broad network of US and European investors and founders that share our vision and approach.Act is based in Dublin, Ireland.Our most recent funds are supported by the European Investment Fund.
- Total investments:
- 165
- Last investment:
- Lead investor:
- 45%
- Fund size:
- $146M
- Last fund:
Last updated:
For AI agents: llms.txt
Industries Act Venture Capital invests in
Stages Act Venture Capital invests in
Countries Act Venture Capital invests in
Round sizes
Contacts
| Name | Phone | Socials | |
|---|---|---|---|
| See all 9 contacts → | |||
Round size
- Seed
- $1M–$5M
- Series A
- $2.3M–$13M
Investment Focus
Industry
- Software 49 (30%)
- Artificial Intelligence 16 (10%)
- Information Technology 15 (9%)
- Health Care 12 (7%)
- Analytics 10 (6%)
Stage
- Seed 42 (25%)
- Series A 31 (19%)
- Funding Round 27 (16%)
- Venture - Series Unknown 21 (13%)
- Series B 11 (7%)
Country
- Ireland 74 (45%)
- United States 16 (10%)
- United Kingdom 9 (5%)
- Germany 1 (1%)
Team
| Name | Title | Investments | Links | |
|---|---|---|---|---|
Andrew O Neill
Principal
|
Principal | Total investments: 6 | Find email | |
Conor Mills
Principal
|
Principal | Total investments: 0 | Find email | |
Debbie Rennick
General Partner
|
General Partner | Total investments: 13 | Find email | |
John O'Sullivan
General Partner
|
General Partner | Total investments: 15 | Find email | |
|
Sarah Matthews
Financial Control
|
Financial Control | Total investments: 0 | Find email | |
| See all 9 team members → | ||||
Investments
| Company | Description | Round | Links |
|---|---|---|---|
| Entity's purpose is shape the future of web gaming by leveraging emerging technologies and maximizing the browser's capabilities. Our next-generation gaming hub, scheduled to arrive in 2027, will be a global place for players to discover, connect, and play together. | $5.8M / Seed / Aug 24, 2026 | ||
| Ubotica is to deploy advanced Artificial Intelligence technologies on board every satellite. | $11M / Venture - Series Unknown / Jun 23, 2026 | ||
| Vox Talk AI is a voice AI system designed exclusively for Alarm Receiving Centers (ARCs) and the emergency security business. | $1.6M / Pre-Seed / Apr 15, 2026 | ||
| GridBeyond is the developer of an artificial intelligence platform aimed at achieving a global zero-carbon future. The company provides AI-powered services and storage to help customers achieve a zero-carbon future by bridging the gap between distributed energy resources and electricity markets, allowing them to access utility-scale renewablesgeneration, battery storage, or industrial load that can be used to maximize opportunities and improve the grid. | $13.8M / Mar 16, 2026 | ||
| Lative provides a real-time growth efficiency platform for sales organizations by analyzing sales performance with precision and purpose. It provides an investment decision platform to manage growth efficiency, headcount effectiveness, and capacity planning. | $7.5M / Nov 13, 2025 | ||
| Momntum is a fintech company that provides embedded point-of-sale consumer financing. | $1.1M / Seed / Jun 10, 2025 | ||
| RecommenderX is an A.I. company, specialising in developing cutting-edge data analytics and recommender systems solutions for the enterprise market. We leverage our Recommendation as a Service (RaaS) cloud platform to convert data into actionable insights, measurably improving business value.With a background in AI academic research, the techteam at RecommenderX have extensive experience combining techniques and technologies from the areas of Machine Learning, Natural Language Processing, User Modelling, Information Retrieval, Personalisation and Human-Computer Interaction.We design, develop and deploy cutting-edge solutions for MNCs in various enterprise verticals including, FinTech, Travel and Telecommunications. We develop data and visualisation applications for companies that are looking to digitally transform their currently manual processes. We also have a range of API-Platform products which can be integrated into and augment a company's current solution. | $1.6M / Seed / Mar 20, 2025 | ||
| The Advise cloud-based solution uses cutting-edge AI, automatically combines data, and provides real-time actionable insights. | $1.6M / Seed / Jan 09, 2025 | ||
| The Advise cloud-based solution uses cutting-edge AI, automatically combines data, and provides real-time actionable insights. | $1.6M / Jan 09, 2025 | ||
| Founded in 2017, Deciphex aims to transform diagnostic workflows through AI-powered digital pathology to improve patient outcomes worldwide. Its two flagship platforms target distinct markets: Diagnexia connects global subspecialty pathologists for rapid diagnostics and backlog reduction, while Patholytix accelerates drug development throughoptimized preclinical safety assessments. By automating routine tasks, these platforms enable pathologists to focus on complex cases while delivering faster, more reliable diagnoses. Through this combination of AI innovation and clinical expertise, Deciphex is advancing both healthcare delivery and therapeutic development. | $32.1M / Series C / Jan 07, 2025 | ||
| See all 165 investments → | |||
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FAQ
What does Act Venture Capital invest in?
Act Venture Capital invests primarily in Software, Artificial Intelligence and Information Technology startups, most often at Seed and Series A stage. Most of the 165 investments tracked by Shizune back companies in Ireland. The Investment Focus section breaks down every industry, stage and country in the portfolio.
What is Act Venture Capital's check size?
Act Venture Capital typically joins rounds of $1M–$5M at Seed and $2.3M–$13M at Series A. These ranges are 10th–90th percentile round sizes calculated from confirmed public funding rounds, so they are a realistic guide to the rounds Act Venture Capital participates in.
How do I contact Act Venture Capital?
Public channels for Act Venture Capital include LinkedIn, X (Twitter) and the website linked on this profile. For a verified work email and phone number, create a free Shizune account — contact data is searched across 20+ sources and validated before delivery, so your outreach lands in the right inbox.
Who are the partners at Act Venture Capital?
The team at Act Venture Capital includes Andrew O Neill (Principal), Conor Mills (Principal) and Debbie Rennick (General Partner), among 9 team members tracked by Shizune. The Team section lists each member with their title, investment count and links.
Is Shizune's investor data accurate?
Yes — every stat on this profile is calculated from confirmed public funding rounds monitored across hundreds of sources since 2020. This profile was last refreshed in Oct 2026 and is updated monthly. Spotted something off? Use the “Suggest an edit” link near the top of the page.
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