How many investments has Act Venture Capital made?

Act Venture Capital has 54 tracked investments, 1 of which have exited.

What stage does Act Venture Capital invest at?

Act Venture Capital invests at the Seed, Series A, Series B, Series C, Late Stage stages.

What sectors does Act Venture Capital focus on?

Act Venture Capital focuses on AI & Machine Learning, Cleantech, Climate Tech, Cloud Computing, Cybersecurity, Deep Tech, Digital Health, E-commerce, Energy, Enterprise Software, Fintech, Gaming, Healthtech, IoT, Logistics & Supply Chain, Media & Entertainment, Mobility & Transportation, SaaS, Sales Tech, Sector Agnostic, Space Tech.

Where is Act Venture Capital located?

Act Venture Capital is headquartered in Dublin, IE.

Does Act Venture Capital lead rounds?

Yes, Act Venture Capital leads investment rounds.

Who does Act Venture Capital co-invest with?

Act Venture Capital most often shares deals with ACT Venture Capital, Furthr VC, Atlantic Bridge Ventures, among 42 tracked co-investors.

Act Venture Capital

Venture capital

Dublin · Seed–Late Stage · 12 people tracked

★ Follow + Add to CRM ⤳ Find an introduction

Find your way into Act Venture Capital

1,768 people in our graph share verified history with the Act Venture Capital team — schools, employers, funds. One of them is your warm intro.

Casy van Maanenunlockedknows Sarah Matthews · together at Colliers International (overlapped)

knows the team · via Enterprise Ireland

knows the team · via Mazars

×2knows the team · via Kauffman Fellows Class 24

×7knows the team · via Kauffman Fellows

✨ Fox Verdict

Investment thesis

Act Venture Capital focuses on leading early-stage investments and supporting founders over the long term, backing exceptional teams with deep understanding of their markets. The firm emphasizes helping companies build and scale, drawing on decades of experience. Its portfolio spans gaming, satellite intelligence, revenue operations software, digital health, AI-powered pathology, public transport data, accident prevention technology, and energy grid optimization. Act has backed 140 companies with €600m raised across 6 funds, with recent funds supported by the European Investment Fund.

Source: firm website, verified Sep 27, 2026.

Stage

Seed–Late Stage

Dublin, IE

Leads rounds

Leads

Instruments

Equity

Founded

1994

Tracked investments

Acquisitions

Team · 12 people

from the firm's website & public directories

Debbie Rennick· General Partner· Ireland

Debbie has spent two decades in technology investing in Ireland, partnering with and advising Act's portfolio companies. Her current investments include GridBeyond, Spectrum Life, Provizio and AQ Metrics. She holds a Law degree from UCD, is a fellow of Chartered Accountants Ireland, and previously worked in corporate finance at KPMG focusing on fundraising and M&A.

John O'Sullivan· General Partner

John O’Sullivan· General Partner

John Flynn· Managing Partner· Howth, Irelandin

John Flynn joined ACT Venture Capital in 1996, having previously worked in software engineering and business development at EDS (now HP). He holds a degree in Physics & Mathematics from UCD and an MBA from Trinity College Dublin, and is a former chairman of the IVCA. He has invested across seed to growth stages in Ireland, Europe, and the US for over two decades.

Andrew O'Neill· Principal

Andrew O’Neill· Principal

Conor Mills· Principal· Irelandin

Conor Mills works at ACT Venture Capital, where he sources new deals, conducts due diligence, and advises portfolio companies. He previously worked on the corporate development team at Paddy Power Betfair, handling M&A opportunities and expansion strategy, and earlier held roles in commercial banking and specialist corporate finance. He is a CFA charter holder, a Business & Economics graduate of Trinity College Dublin, and a member of class 24 of the Kauffman Fellows.

Cathy McBride· Fund Accountant

Lorraine Paton· Financial Controller· Irelandin

Lorraine Paton joined ACT's financial control department in 1994 and became Financial Controller in 1996. In that role she handles group reporting, group tax, and Central Bank compliance.

Mairead Roche· Associate· Irelandin

Mairead Roche sources new deals, conducts due diligence, and monitors portfolio companies at ACT Venture Capital. Before joining ACT, she held roles on the investment teams at Enterprise Ireland and the Ireland Strategic Investment Fund (ISIF), and worked in Deloitte's Corporate Finance division on M&A Transaction Services. She is an ACA Chartered Accountant with degrees from University College Cork and University College Dublin, as well as a Diploma in Artificial Intelligence from UCD.

Sarah Matthews· Accounts· Irelandin

Sarah Matthews joined Act in 2017 as an accounts assistant. She handles accounting for the firm and manages the financial operations of the management company.

Shanice Callinan· Compliance Analyst & Office Manager· Dublin, County Dublin, Irelandin

What they invest in

from 32 of 54 portfolio companies

AI & Machine Learning ×15Enterprise Software ×12SaaS ×12Data & Infrastructure ×6Deep Tech ×6Hardware ×6Healthtech ×5Cybersecurity ×4

HQs:Ireland×20United Kingdom×2Kenya×1

Who they back

founder profiles across 17 portfolio companies

53%

solo founders

9 of 17 mapped founding teams

50%

repeat founders

of 16 founders with career history

Founding team size:solo founder×92 founders×73 founders×1

Where their founders studiedfrom 19 founders with education data

Trinity College Dublin ×4University College Dublin ×3University of Limerick ×3Dublin City University ×2Technological University Dublin ×2

What their founders studiedfrom 18 founders with field-of-study data

Business & Management ×8Computer Science ×6Design & Architecture ×2Economics ×2Engineering ×2Mathematics & Statistics ×2Physics ×2

Investments · 54 tracked

founders shown can be your intro path

Alpha Wirelessalphawireless.com in

Alpha Wireless manufactures wireless antennas and telecommunications cabinets for telecom infrastructure operators and network deployment specialists.

Enterprise SoftwareHardwareIoTPortlaoise, IE

Fergal Lawlor(Chief Executive Officer)in

Co-investorsACT Venture Capital

AQMetricsaqmetrics.com in 𝕏

AQMetrics provides investment compliance software that automates ongoing monitoring of ownership structures, investment limits, and portfolio risk for financial institutions.

Data & InfrastructureEnterprise SoftwareFintechLegalTechSaaSDublin, IE

Geraldine Dautun(Founder)in

Co-investorsACT Venture Capital Frontline Ventures

Cesantacesanta.com in 𝕏

Cesanta develops embedded networking software and IoT device management solutions, including firmware frameworks and cloud platforms for connected products.

Developer ToolsHardwareIoT

Anatoly (Toly) Lebedev Sergey Lyubka in

Co-investors500 Global ACT Venture Capital

channel sightchannelsight.com in

ChannelSight provides a Where To Buy solution that directs online shoppers to the nearest retailer with product inventory in stock, integrating directly into brand websites and product pages.

Data & InfrastructureE-commerceMarketing TechRetail TechSaaS

John Beckett(Founder)in

Co-investorsACT Venture Capital Liquidity Capital Mars Growth Capital Nauta Capital Enterprise Ireland

CitySwiftcityswift.com in 𝕏

CitySwift is an Irish big data company providing a performance optimization platform to bus network operators worldwide, delivering actionable insights to improve operational efficiency, reliability, and passenger experience.

AI & Machine LearningData & InfrastructureLogistics & Supply ChainMobility & Transportation

Brian O'Rourke in

Co-investorsACT Venture Capital Gresham House Ventures Western Development Commission

Decawavedecawave.com

Decawave developed Ultra-Wideband (UWB) technology, including UWB integrated circuits, modules, and evaluation kits, some compatible with Apple's U1 chip.

HardwareIoTSemiconductors

Co-investorsACT Venture Capital Kernel Capital WestSummit Capital Atlantic Bridge Ventures

Deciphexdeciphex.com in 𝕏

Deciphex develops AI-powered platforms to enhance pathology efficiency, including digital image analysis, clinical trial support, and a global network of subspecialty pathologists.

AI & Machine LearningDigital HealthHealthtechMedical Devices

Co-investorsACT Venture Capital Claret Capital Partners Molten Ventures Seroba Life Sciences

Eblana Photonicseblanaphotonics.com

Eblana Photonics designs and manufactures laser diodes and photonic solutions for sensing, LIDAR, spectroscopy, and telecommunications applications across the infrared spectrum.

Deep TechHardwareSemiconductorsDublin, IE

Dr. James O'Gorman(Founder)Prof. John Hegarty(Founder)

Co-investorsACT Venture Capital

EdgeTieredgetier.com in

EdgeTier provides AI-powered software that analyzes customer interactions in real time to identify issues and their root causes for contact centers and customer experience teams.

AI & Machine LearningEnterprise SoftwareSaaSDublin, IE

Shane(Chief Executive Officer / Co-Founder)inCiarán(Chief Technical Officer / Co-Founder)in

Co-investorsACT Venture Capital Episode1

Ekcoek.co in 𝕏

Ekco provides cloud and security solutions for enterprise customers, with operations in the UK and Ireland.

Cloud ComputingCybersecurityEnterprise SoftwareDublin, IE

Eoin Blacklock(Founder)in

Co-investorsACT Venture Capital

Greyscoutgreyscout.com in 𝕏

GreyScout provides technology and services to help brands protect their intellectual property and distribution channels from counterfeit and grey market activity.

E-commerceMarketing TechMarketplaces

Co-investorsACT Venture Capital Furthr VC

Gridbeyondgridbeyond.com in 𝕏

GridBeyond develops a technology platform that manages distributed and flexible energy resources for industrial, commercial, utility, and institutional organizations worldwide.

AI & Machine LearningCleantechEnergyEnterprise SoftwareIoTSaaSCork, IE

Michael Phelan(CEO)inPadraig Curran(CTO & Co-Founder)Richard O'Loughlin(Deputy CEO)in

Co-investorsEnergy Impact Partners Constellation Mirova Samsung Ventures ACT Venture Capital Aster Capital +3 more

Keelvarkeelvar.com in

Keelvar is an AI-native advanced sourcing optimization platform that helps enterprises automate and optimize procurement processes by matching buyers and suppliers fairly using intelligent algorithms.

AI & Machine LearningB2B MarketplacesEnterprise SoftwareSaaSCork, IE

Alan Holland(Founder & CEO)in

Co-investors83North ACT Venture Capital Enterprise Equity Mosaic Ventures SquareOne Celonis +2 more

Lativelative.io in 𝕏

Lative is an AI-native platform for go-to-market (GTM) planning and decision intelligence that unifies sales strategy with execution by connecting marketing intelligence to sales operations.

AI & Machine LearningSaaS

Co-investorsACT Venture Capital Senovo Enterprise Ireland WestWave Capital

Lime Microsystemslimemicro.com in 𝕏

Lime Microsystems designs field-programmable RF transceivers and software-defined radio silicon for wireless broadband infrastructure and adjacent applications.

Deep TechHardwareSemiconductorsLondon, GB

Ebrahim Bushehri(Chief Executive Officer)in

Co-investorsACT Venture Capital

Mad Memad-me.com in

mAdme provides a cloud-native customer engagement platform built specifically for telecommunications service providers, combining on-device intelligence, campaign orchestration, and actionable insights.

AdTechAI & Machine LearningData & InfrastructureEnterprise SoftwareMarketing Tech

Co-investorsACT Venture Capital Delta Partners

Micron Agritechmicronagritech.com in 𝕏

Micron Agritech develops portable pen-side diagnostic devices for animal health testing, enabling rapid diagnostics for farmers and veterinarians.

AgTechAI & Machine LearningHealthtechMedical DevicesDublin, IE

Daniel Hijazi(CEO)in

Co-investorsACT Venture Capital Atlantic Bridge Ventures The Yield Lab Europe Enterprise Ireland The Yield Lab

Oblivious Acquiredoblivious.com in 𝕏

Oblivious builds privacy-enhancing software that enables organizations to perform secure data collaboration and deploy services while maintaining data sensitivity.

AI & Machine LearningCybersecurityData & InfrastructureEnterprise SoftwareDublin, IE

Jack Fitzsimons(Co-founder)Robert Pisarczyk(Co-founder)in

Co-investorsACT Venture Capital Acurio Ventures Atlantic Bridge Ventures Cavalry Ventures Expeditions Firestreak Ventures +2 more

Plasma Boundplasmabound.com in 𝕏

Plasma Bound, a spin-out of University College Dublin, develops Controlled Polymer Ablation (CPA) surface-engineering technology for bonding lightweight structural assemblies.

Advanced ManufacturingDeep TechNew MaterialsDublin, IE

Alan Barry(CEO & Co-Founder)in Xavier Montibert(Commercial Director & Co-Founder)inDr. Nick Barry(CTO & Co-Founder)

Co-investorsACT Venture Capital Atlantic Bridge Ventures Business Venture Partners

Provizioprovizio.ai

Provizio develops software-defined imaging radar and AI perception software that converts raw radar data into insight for safety, efficiency, and automation.

AI & Machine LearningDeep TechMobility & Transportation

Barry L.(Founder)in

Co-investorsACT Venture Capital TechFounders EIC

S3 Connected Healths3connectedhealth.com in

S3 Connected Health provides development and deployment services for Software as a Medical Device (SaMD) applications and connected medical devices, supporting organizations from concept through operation with expertise in digital health connectivity and cybersecurity.

Digital HealthHealthtechMedical DevicesNot specified on page, IE

John(Executive Chairman and CEO)

Co-investorsACT Venture Capital

ServisBOTservisbot.com in 𝕏

Servisbot develops AI agents, copilots, and assistants powered by generative AI for regulated industries, with built-in safeguards and human oversight to ensure compliant and controlled automation.

AI & Machine LearningEnterprise SoftwareSaaS

Co-investorsACT Venture Capital

SiriusXTsiriusxt.com in 𝕏

SiriusXT develops the SXT-100 soft X-ray microscope, a laboratory-based imaging system that produces nanometer-resolution 3D images of fully hydrated intact cells.

BiotechDeep TechHardwareMedical DevicesDublin, IE

Co-investorsACT Venture Capital Delta Partners

Spectrumspectrum.life in

Spectrum.Life provides integrated digital health and wellbeing services to organizations and their employees, covering medical care, mental health support, and personalized coaching.

Digital HealthHealthtechMental HealthSaaSWellness & Fitness

Stephen Costello(Founder)in Stuart McGoldrick(Founder)in

Co-investorsKreos Capital Alumni Ventures TechOperators Venture Capital

Spotted Zebraspottedzebra.co.uk in

Spotted Zebra provides an AI-powered interview intelligence and assessment platform that combines skills science with machine learning to help enterprise organisations identify and hire candidates based on skills rather than credentials.

AI & Machine LearningEnterprise SoftwareHR TechSaaSLondon, GB

Ian Monk(Founder)in Nick Shaw(Founder)in

Co-investorsACT Venture Capital Entrepreneur First Nauta Capital Playfair Capital

Trustaptrustap.com in 𝕏

Trustap provides payment processing, fulfillment, and customer support services for online marketplaces and e-commerce platforms across multiple asset classes including tickets, apparel, vehicles, and luxury goods.

B2B MarketplacesE-commerceFintechMarketplacesCork, IE

Conor Lyden(Founder)

Co-investorsACT Venture Capital Atlantic Bridge Ventures Furthr VC Partners Resolute TX Ventures

Umbaumba.com in 𝕏

Umba is a digital bank for African consumers and small businesses that provides banking services, credit products, and payment solutions via mobile platforms.

FintechNairobi, KE

Barry O’Mahony(Founder)

Co-investorsACT Venture Capital Dunbar Capital Frontline Ventures Streamlined Ventures Valia Ventures Banana Capital +6 more

UrbanFoxurbanfox.io in 𝕏

UrbanFox is an AI-powered fraud detection platform that uses generative AI and behavioral intelligence to detect online payment fraud, bot traffic, and account takeover attempts without relying on static rules.

AI & Machine LearningCybersecurityFintechDublin, IE

Co-investorsACT Venture Capital Furthr VC JetBlue Ventures SKY VC Techstars IAG Capital Partners +1 more

Verodatverodat.com in 𝕏

Verodat provides a governed data supply chain platform that validates, tracks provenance, and structures business data so it can be reliably used by AI, analytics, and automation tools.

AI & Machine LearningData & InfrastructureEnterprise SoftwareDublin, IE

Thomas Russell(Founder)in

Co-investorsACT Venture Capital

VideoElephantvideoelephant.com in

Video Elephant provides a licensed video library and content distribution platform for publishers and broadcasters.

AdTechB2B MarketplacesMarketing TechMedia & EntertainmentSaaSDublin, IE

Co-investorsACT Venture Capital Furthr VC

Visuavisua.com in 𝕏

VISUA provides computer vision and visual AI technology for product authentication and brand protection, enabling automated verification of labels, holograms, tax stamps, and packaging using object detection via smartphone devices.

AdTechAI & Machine LearningCybersecurityDeep TechEnterprise SoftwareSaaSDublin, IE

Co-investorsACT Venture Capital

Vitro Softwarevitrosoftware.com in 𝕏

Vitro is a clinician-designed digital medical record system that digitises hospitals' existing paper forms, pathways and workflows, capturing clinical data at the bedside and integrating scanned historical records with lab, radiology and patient administration results.

Digital HealthHealthtechSaaS

Co-investorsACT Venture Capital

Other

Tracked investments with no reachable website or further public details — typically companies that wound down, renamed, or were absorbed.

AkaraCorvilCR2Cubic3EntityESGEveryangleFrescoGocontractorHubliID PaliheedMavarickOcrexOralEyePlayterRecommenderXScurriSilvercloudTandem HRUboticaWorldnet Payments

Exits · 1

1 acquisitions

Gocontractoracq. by Safety Plus

Frequently asked questions

How many investments has Act Venture Capital made?: Act Venture Capital has 54 tracked investments, 1 of which have exited.
What stage does Act Venture Capital invest at?: Act Venture Capital invests at the Seed, Series A, Series B, Series C, Late Stage stages.
What sectors does Act Venture Capital focus on?: Act Venture Capital focuses on AI & Machine Learning, Cleantech, Climate Tech, Cloud Computing, Cybersecurity, Deep Tech, Digital Health, E-commerce, Energy, Enterprise Software, Fintech, Gaming, Healthtech, IoT, Logistics & Supply Chain, Media & Entertainment, Mobility & Transportation, SaaS, Sales Tech, Sector Agnostic, Space Tech.
Where is Act Venture Capital located?: Act Venture Capital is headquartered in Dublin, IE.
Does Act Venture Capital lead rounds?: Yes, Act Venture Capital leads investment rounds.
Who does Act Venture Capital co-invest with?: Act Venture Capital most often shares deals with ACT Venture Capital, Furthr VC, Atlantic Bridge Ventures, among 42 tracked co-investors.

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