Gresham House Ventures β Full Portfolio
42 tracked investments Β· listed companies and verified rows first
ARKK provides an automation platform that converts fund data into CBI-compliant XML for Irish money market and investment fund reporting, with built-in validation and machine learning checks to ensure submission accuracy and regulatory compliance.
Cloud ComputingEnterprise SoftwareFintechSaaS
Roi(Co-founder & Chief Technical Officer)
Metrion Biosciences provides ion channel screening and drug discovery services for pharmaceutical and biotech companies.
BiotechDeep TechMedical DevicesCambridge, GB
Marc Rogers(Founding Director)John Ford(Founding Director)Keith McCullagh(Founding Director)Lee Patterson(Chief Executive Officer)
Co-investorsMaven Capital PartnersO2h Ventures
OnSecurity provides AI red teaming and penetration testing services to identify vulnerabilities in large language models and AI-powered applications.
AI & Machine LearningCybersecurityDeveloper ToolsEnterprise SoftwareSaaS
Conor O'Neill(Chief Executive Officer)Duncan Butchart(Chief Revenue Officer)Adam Luxford(Chief Operating Officer)
Co-investorsOsney Capital
Popsa is a mobile and web platform that lets people turn photos from their camera rolls into physical keepsakes such as photo books, prints, calendars, and photo boxes, using AI-assisted layout and curation tools.
AI & Machine LearningConsumerDirect to ConsumerE-commerceLondon, GB
Liam Houghton(Co-founder)inTom Cohen(Co-founder)
Co-investors500 GlobalPembroke VCToctopus investments
01Health provides an AI-powered platform that enables local healthcare providers to deliver specialist care by embedding clinical protocols, expert oversight, and patient workflows into their practices.
AI & Machine LearningDigital HealthHealthtechSaaS
Dr. Sonia Szamocki
Co-investorsBalderton CapitalBlue Lion GlobalEka Ventures
Airfinity provides AI-powered predictive analytics, simulation, and forecasting for the life sciences industry, focused on medicine and vaccine demand forecasting across specific disease areas.
AI & Machine LearningBiotechHealthtech
Rasmus Bech Hansen(CEO & Co-Founder)Sacha Carton(COO & Co-Founder)
Co-investorsMD One Ventures
Bella+Duke produces raw, nutritionally balanced pet food and supplements designed to support pet health and wellness.
ConsumerDirect to ConsumerE-commerceWellness & Fitness
MarkTony
Buster + Punch manufactures portable table lighting fixtures designed for indoor and outdoor use, with rechargeable battery power and touch-dimmable controls.
ConsumerDirect to ConsumerE-commerceHardwareLondon, GB
Massimo Buster Minale(Founder)
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
Co-investorsAct Venture CapitalACT Venture CapitalWestern Development Commission
Cognassist provides cognitive assessments and neurodiversity support tools for educational institutions and workplaces to help individuals understand how they think and learn.
AI & Machine LearningEdTechHealthtechSaaS
Chris Quickfall(CEO and Founder)Dan Rushton(Chief Product Officer)
Connect Childcare provides management software for multi-site nursery groups, enabling centralized administration, billing, staff scheduling, and compliance tracking across multiple early childhood care facilities.
EdTechEnterprise SoftwareHR TechSaaS
Co-investorsDeepbridge Capital
Connect Earth provides a Sustainable Finance operating system that helps financial institutions assess portfolio sustainability, automate ESG reporting, and align investments with sustainability standards like the EU Taxonomy and SFDR requirements.
Climate TechData & InfrastructureFintechImpact & Social GoodUK, GB
Alex Lempka(CEO)inNick Carmont(Founding CTO)in
Co-investorsBeyond CapitalCreative Destruction Lab (CDL)Double DownEntrepreneur FirstGlobal BrainLove Ventures+4 more
Co-investorsMobeus Equity Partners
Co-investorsFINTOP Capital
Mojo is a mobile app that provides animated templates and editing tools for creating social media content.
ConsumerCreator EconomyMarketing TechMedia & EntertainmentParis, FR
Francescu Santoni(Founder)in
Co-investorsJoa CapitalY CombinatorBetter Capital
Mojo Vision develops micro-LED technology, positioning it as a platform for AI infrastructure and next-generation displays.
Deep TechHardwareSemiconductors
Nikhil Balram(Chief Executive Officer)Mike Wiemer(Chief Technology Officer)inG. Aaron James(General Counsel)
BoardSteve Jurvetson(Founder)in
Co-investorsARC Angel FundArgonautic VenturesBold Capital PartnersDisney AcceleratorFlucas VenturesFusion+13 more
Digital healthcare company (eating disorder treatment).
Ozone API provides open API technology and standards-compliant infrastructure that helps banks and financial institutions deliver open banking and open finance.
Cloud ComputingData & InfrastructureFintechSaaSLondon, GB
BoardChris(Board member)Huw(Board member)Freddi(Board member)
RevLifter provides an intelligent offer platform for eCommerce merchants to deliver personalized promotions and product recommendations based on customer behavior and intent.
AI & Machine LearningE-commerceMarketing TechRetail Tech
Ryan Kliszat(Co-founder)Simon Bird(Co-founder)
Co-investorsMaven Capital Partners
Rotageek provides workforce management and scheduling software for rota planning, including demand forecasting, labour modelling, auto-scheduling, time and attendance tracking, and leave management.
AI & Machine LearningFuture of WorkHR TechRetail TechSaaS
Chris McCullough(Co-founder)Roy Pounder(Co-founder)Nick Mann(Co-founder)
Co-investorsCalculus Capital Ltd.Venture FoundersVolution VenturesCalculusGresham HouseMobeus Equity Partners
Tembo builds a platform that serves as an operating layer for software engineering teams, providing secure execution, shared context, and workflow coordination for AI coding agents.
AI & Machine LearningCloud ComputingDeveloper ToolsEnterprise Software
Co-investorsGreatPoint VenturesCincyTechCintrifuse CapitalGrand VenturesWireframe VenturesAscension+4 more
Tembo is a UK mortgage broker and savings platform that helps home buyers get mortgage advice, remortgage, and open savings accounts, offering access to 100+ lenders and dedicated case managers.
FintechPropTech
Co-investorsConduit ConnectFounders FactoryFounders Factory NY
Tolerance is a compliance platform that runs continuous automated checks against the NIST 800-171 standard and collects assessor-ready evidence for teams handling Controlled Unclassified Information (CUI).
CybersecurityGovTechSaaS
Co-investorsDorm RoomAmadeus Capital PartnersBen Franklin Technology PartnersBioAdvanceColumbus Venture PartnersCriteria Bio Ventures+4 more
TravelLocal connects travelers with handpicked local travel agents to create personalized itineraries and authentic destination experiences.
B2B MarketplacesMarketplacesTravel & Hospitality
Co-investorsActive PartnersChannel 4 VenturesPuma Private Equity
Veremark provides continuous background screening, global verification, and compliance services for hiring teams across 180+ countries.
Enterprise SoftwareHR TechSaaS
Co-investorsRed Beard VenturesSalica InvestmentsStage 2 CapitalVulpes VenturesSamaipata
Virgin Wines sells curated wine and beverage cases, including mixed selections, seasonal reds, and craft beers, primarily to consumers for personal consumption or gifting.
ConsumerDirect to ConsumerE-commerceFoodTechUK, GB
VivaCity operates in transportation technology, aiming to make cities smarter and more efficient.
AI & Machine LearningGovTechMobility & TransportationLondon, GB
Mark Nicholson(Chief Executive Officer & Co-Founder)Yang(Co-Founder)Peter(Co-Founder)
Co-investorsThe FSE Group
Rows marked βSEC filingβ are inferred from directors named on the company's SEC Form D β public regulatory data, not a portfolio list published by the firm.











