🦊/Investors

24 Haymarket

Venture capital

London · Seed–Growth · 8 people tracked

Also known as 24 Haymarket Limited · Shared Office Management Limited

Find your way into 24 Haymarket

1,551 people in our graph share verified history with the 24 Haymarket team — schools, employers, funds. One of them is your warm intro.

Maria Scottunlockedknows Paul Tselentis · together at The Carlyle Group (overlapped)
×2knows the team · via The Carlyle Group
knows the team · via Harvard University
×2knows the team · via Stanford University Graduate School of Business
knows the team · via The London School of Economics and Political Science (LSE)
knows the team · via Sevenoaks School
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Investment thesis

24Haymarket follows a strict investment thesis focused on verticals in the nascent stages of high growth, where it can leverage proprietary insight from its Investor Network. The firm targets companies that have demonstrated initial commercial traction. It pursues an active investment philosophy, seeking a board seat in each investment alongside a hands-on, involved post-investment model. The firm makes initial investments with capacity for follow-on funding, leads rounds, and syndicates the capital of its sophisticated private investors, who commit their own money to each deal. 24Haymarket emphasises speed, aiming to complete within six weeks of first conversation.

Invests inSector AgnosticEuropeLondonUnited Kingdom

Source: firm website, verified Aug 3, 2026.

Stage
Seed–Growth
HQ
London, GB
Leads rounds
Leads
Instruments
Equity
Founded
2012
Net assets · FY2026
$818K
Tracked investments
55
Acquisitions
1

Team · 8 people

from the firm's website & curated

What they invest in

from 42 of 55 portfolio companies

SaaS ×14AI & Machine Learning ×9Enterprise Software ×9Hardware ×7Healthtech ×7Medical Devices ×7Marketing Tech ×6Biotech ×5

HQs:United Kingdom×24Canada×1Sweden×1United States×1

Who they back

founder profiles across 16 portfolio companies
56%
solo founders
9 of 16 mapped founding teams
50%
repeat founders
of 12 founders with career history

Founding team size:solo founder×92 founders×64+ founders×1

Where their founders studiedfrom 12 founders with education data

Hult International Business School ×2

What their founders studiedfrom 13 founders with field-of-study data

Computer Science ×5Business & Management ×4Finance & Accounting ×2Life Sciences ×2

Where their founders worked beforefrom 12 founders with career history

Karolinska Institutet ×2Scaleout ×2Uppsala University ×2

Investments · showing 50 of 55

founders shown can be your intro path
AI in healthcarefeebris.comin

Feebris offers a clinical platform with CE-certified medical device AI (PlethAI, Class IIb) that enables hospital-grade remote patient monitoring and care at home.

AI & Machine LearningDigital HealthMedical Devices

Co-investorsCambridge Angels groupJoyance PartnersMeridian Health VenturesSupermorpheus

amicableamicable.ioin

Amicable is an online legal service for divorcing and separating couples in the UK, working with both partners together to handle divorce, financial settlements, consent orders, and child and pet arrangements without solicitors.

ConsumerLegalTech

Kate Dalyin

Co-investorsQVentures

Angokaangoka.io

ANGOKA provides secure machine-to-machine communications for robotic, autonomous, and mission-critical systems operating across air, land, maritime, space, and critical infrastructure.

CybersecurityDefense TechIoTBelfast, GB

Shadi Razak(Founder)

Co-investorsClarendon Fund Managers Ltd.Jenson VenturesSeraphim Space

Azadyneazadyne.comin

Azadyne is a UK biotech company and spin-out from Trinity College Dublin developing therapeutics based on tRNA modification and epigenetic regulation of cellular protein synthesis.

BiotechDeep Tech

Vincent KellyStephen Connonin

BoardJason Rutt

Co-investorsNCL Technology Ventures Ltd.

Blackbullionblackbullion.comin

Blackbullion operates a centralized platform where students can search and apply for scholarships, grants, and bursaries from external organizations and educational institutions.

B2B MarketplacesEdTechFintechSaaS

Brain in Handbraininhand.co.ukin

Brain in Hand provides digital support combined with on-demand human assistance to help autistic and neurodivergent people in the UK manage daily challenges and access employment, healthcare, and professional support.

Digital HealthEdTechHealthtechMental Health

Louise Morpeth(Chief Executive Officer and Board Member)inMatthew Arnold(Product and Strategy Director)in

Cambridgemedtechcambridgemedtech.com

Cambridge Medical Technologies designs and manufactures medical devices for non-invasive blood biomarker monitoring.

HardwareHealthtechMedical DevicesCambridge, GB

Michael Lacey-Solymar(Chairman)Jack Jachmann(Chief Executive Officer)James Cooke(Chief Financial Officer)John Currie(Chief Scientist)

Circulorcirculor.com

Circulor provides digital product passport infrastructure and supply chain traceability solutions designed for regulatory compliance with EU sustainability requirements.

Advanced ManufacturingCircular EconomyEnterprise SoftwareSaaS

Giles Palmer(CEO)

Co-investorsAster CapitalFuture Positive CapitalHG VenturesInMotion VenturesRegeneration.VCSystemiq Capital+2 more

Cloudhousecloudhouse.comin

Cloudhouse helps enterprises safely execute infrastructure changes—patches, migrations, and modernizations—on legacy platforms without breaking mission-critical applications.

Cloud ComputingCybersecurityDeveloper ToolsEnterprise Software

Mat Clothier(Founder)in

Co-investorsCommitted Capital

Clustermarketclustermarket.comin𝕏

Calira provides scheduling and management software for scientific lab equipment, letting LabOps teams book shared instruments, track maintenance, monitor utilisation, and build a searchable equipment directory across one or multiple labs and sites.

BiotechEnterprise SoftwareSaaS

Niklas Friedberg(Founder)inTobias Wingbermuehle(Founder)in

Co-investorsMolten Ventures

Cyberhivecyberhive.comin𝕏

CyberHive provides secure communication and zero-trust connectivity solutions designed for defense, military, and other mission-critical operations across constrained or contested environments.

CybersecurityDefense TechDeveloper ToolsEnterprise SoftwareIoT

Andrew Anderson(Founder and CEO)in

CyberOwlcyberowl.ioin𝕏

CyberOwl develops Medulla, a cybersecurity platform that provides asset inventory, continuous security monitoring, and risk visibility for maritime and shipping fleets.

CybersecurityIoTLondon, GB

Daniel Ngin

Co-investorsPhaze VenturesTechstarsBrookstreet Equity Partners

Cydar Medicalcydarmedical.comin𝕏

Cydar Medical provides cloud-based software that uses AI and data fusion to give surgical and clinical teams imaging insights during procedures, aiming to reduce radiation exposure, procedure times, and contrast agent use.

AI & Machine LearningDigital HealthMedical Devices

Co-investorsPembroke VCTVenture Founders

Definigendefinigen.comin

Definigen manufactures iPSC-derived human hepatocytes for drug discovery and disease modeling.

AI & Machine LearningBiotechDeep TechHealthtechMedical DevicesUppsala, SE

Christopher Trummer(CEO & Co-Founder)inOla Spjuth(Chief AI Officer (CAIO) & Co-Founder)inJordi Carreras-Puigvert(Chief Scientific Officer & Co-Founder)inMorgan Ekmefjord(Co-Founder & CTO)in

Co-investorsAlmi InvestNordic Science Investments

Deliciouslyelladeliciouslyella.comin𝕏

Deliciously Ella offers a subscription membership, available via website and app, with 2,000+ plant-based recipes, guided meditations, and wellness tools like meal planning and shopping lists.

ConsumerDirect to ConsumerWellness & Fitness

Ella

Dogtooth Technologies - companydogtooth.techin

Dogtooth Technologies develops autonomous robotic systems for agricultural harvesting, particularly strawberry picking.

AgTechAI & Machine LearningHardwareRoboticsCambridge, GB

Dr Duncan Robertson(Founder & CEO)Ed Herbert(Founder & COO)

Co-investorsEMV CapitalMartlet Capital

Eepurleepurl.comin𝕏

Mailchimp is an email and SMS marketing platform that helps businesses of all sizes automate customer communications and drive revenue through AI-powered analytics and campaign tools.

E-commerceMarketing TechSaaS

Co-investorsDecisive PointFifth WallFitz Gate VenturesForma PrimeHello TomorrowMapleblock Capital+9 more

Flussoltdflussoltd.comin

Flussol manufactures miniaturized air velocity sensors for flow measurement applications.

Deep TechHardwareIoTSemiconductorsCambridge, GB

Dr Andrea De Luca(CEO and co-founder)Prof. Florin Udrea(CTO and co-founder)

Co-investorsMartlet Capital

Huqhuq.io

Huq turns location and behavioural movement data into weekly intelligence and dashboards that help organisations make retail, property, and place-based decisions.

AI & Machine LearningData & InfrastructurePropTechRetail Tech

Co-investorsACF Investors

Hypetexhypetex.comin𝕏

Hypetex develops FlaxTex, a coloured natural flax fibre technology that serves as a sustainable, biodegradable alternative to carbon and glass fibre for manufacturing applications.

Advanced ManufacturingCircular EconomyCleantechDeep TechNew MaterialsLondon, GB

Marc Cohen(CEO)in

Co-investorsInnovate UKOxford Investment Opportunity Network (OION)

Insigniatechnologiesinsigniatechnologies.comin

Insignia Technologies develops products using patented colour-changing inks and films that provide real-time visual indicators for applications such as patient safety and food waste reduction.

FoodTechMedical DevicesNew MaterialsBioCity Scotland, GB

Dr Graham Skinner(CEO)

Co-investorsEquity Gap

Interfacepolymersinterfacepolymers.comin

Interface Polymers develops Polarfin diblock copolymer additives used as compatibilisers, anti-fog dispersions, and adhesion promoters for polyolefin plastics.

Advanced ManufacturingCircular EconomyNew Materials

Irisiris.netin

IRIS develops a cloud-based digital ordering and guest management platform for hotels and restaurants, enabling guests to browse, order, and pay for food, beverages, and services through their personal devices.

Cloud ComputingDirect to ConsumerEnterprise SoftwareHardwareSaaSTravel & Hospitality

Co-investorsColumbia Pacific AdvisorsConcord Health PartnersFounder CollectiveGlasswing VenturesHyde Park Angels

Keldatechnologykeldatechnology.com

Kelda Technology develops water-in-air shower products using patented technology derived from aerospace and automotive engineering to reduce water usage and water heating costs.

CleantechClimate TechHardware

Loveadminloveadmin.comin

LoveAdmin's Thrive4 Network provides sports and community clubs with administration tools, expert support, learning resources and structured planning to improve their organisation, finances, membership growth and community engagement.

SaaSSports Tech

Lunamaelondonlunamaelondon.com

Luna Mae is a couture house that produces personalized lingerie, loungewear, and babywear, emphasizing British craftsmanship.

ConsumerDirect to ConsumerLondon, GB

Medisievemedisieve.comin𝕏

MediSieve develops a magnetic blood filtration system that uses nanoengineered magnetic particles and beads to remove pathogens such as harmful cells, bacteria, toxins, and inflammatory cytokines directly from a patient's bloodstream.

BiotechHealthtechMedical Devices

Dr George Frodsham(Founder & CEO)Prof Quentin Pankhurst(Co-founder)

Membrmembr.comin𝕏

Membr provides a management platform for gyms and fitness facilities that automates member engagement, booking, and personal training coordination.

Future of WorkHealthtechSaaSSports TechWellness & Fitness

Jack(Founder & CEO)Dave

Monterosamonterosa.coin𝕏

Monterosa provides a real-time engagement platform that enables organizations to build direct relationships with audiences through owned channels, capturing first-party data and managing audience interactions at scale.

GamingMarketing TechMedia & EntertainmentSaaSSports TechUK, GB

SimonTomIgor

Optalitixoptalitix.comin

Optalitix provides an enterprise platform that consolidates pricing and underwriting workflows, enabling organizations to modernize their pricing models without disruption through incremental cloud migration and governance.

AI & Machine LearningCloud ComputingEnterprise SoftwareFintechInsurTechSaaSLondon, GB

Co-investorsCalculus Capital Ltd.

Osprey Flight Solutionsospreyflightsolutions.comin𝕏

Osprey provides flight planning integration and risk assessment analysis for aviation operations, combining proprietary data with external aviation information to optimize routes for safety, efficiency, and security.

AI & Machine LearningDefense TechEnterprise SoftwareLogistics & Supply ChainSaaS

Andrew(CEO and Co-founder)Bruce(Co-founder and Head of Partnerships)

Co-investorsLevel Equity

Previsicoprevisico.comin𝕏

Previsico provides a flood forecasting and hydrological monitoring service that predicts and monitors flood risks, including surface water, small streams, and drainage systems often not covered by standard flood alerts.

AI & Machine LearningClimate TechInsurTech

Prof. Yu(Co-founder)Dr Avi Baruch(Co-founder)in

Co-investorsBURNT ISLAND VENTURESConnecticut InnovationsBlueOrchard Finance S AForesight Group

Privitarprivitar.com

London

Nick Pointon(Executive Officer)Cary Davis(Director)Gerard Buggy(Director)Jason McFall(Executive Officer)Jason du Preez(Executive Officer, Director)Seth Pierrepoint(Director)

Co-investorsAccelGen CapitalIlluminate FinancialPartech Ventures

Prosapientprosapient.comin𝕏

ProSapient operates a survey platform that uses AI-enhanced tools to help teams collect and analyze insights from expert respondents and niche audiences.

AI & Machine LearningB2B MarketplacesData & InfrastructureEnterprise SoftwareMarketing TechSaaSToronto, CA

Margo Polishchuk(Co-founder)inJordan(Co-founder)

Co-investorsSmedvig CapitalFigure 8 Investments

Revolobiorevolobio.comin𝕏

Revolo Biotherapeutics develops immunomodulatory therapies targeting allergic and immune-mediated conditions.

BiotechHealthtechMedical Devices

Jonathan Rigby(Employee #1)

Co-investorsNCL Technology Ventures Ltd.

Rpdintlrpdintl.com

The site publishes SEO-style articles about cannabis dispensaries, medical/recreational cannabis products, and running cannabis e-commerce stores, focused on the Staten Island, New York area.

E-commerceMedia & Entertainment

Smartiasmartia.techin

Hardware-enabled AI software turning industrial data into actionable insights.

Co-investorsQVentures

Sphere Fluidicsspherefluidics.com

Provides pharmaceutical R&D services via the Cyto-Mine machine for single-cell analysis and characterisation.

Co-investorsQVenturesProvidence Investment Company LimitedREDMILESofinnova Partners

Spirablespirable.comin𝕏

Spirable is a sport-focused media activation platform that helps advertisers connect with sports fans through targeted advertising and broadcast solutions.

AdTechMarketing TechMedia & EntertainmentSports Tech

Ger O'Meara(Founder)in

Co-investorsFrontline VenturesTrue.Smedvig Capital

Spokespoke-london.com

SPOKE is a London-based menswear brand selling clothing and accessories online, including a sock collection produced in partnership with the London Sock Company.

ConsumerDirect to ConsumerE-commerceLondon, GB

Ben Farren(Founder)in

Co-investorsMolten VenturesOxfordAda VenturesBethnal Green VenturesSeedrs

Tickxtickx.comin𝕏

TickX Flows is an embeddable, branded ticket checkout experience that runs on a customer's website and integrates with existing ticketing systems via real-time API.

B2B MarketplacesCreator EconomyMarketing TechSaaS

Steve Pearce(Co-Founder, CEO)Sam Coley(Co-Founder, CTPO)

Trackonomicstrackonomics.netin𝕏

Trackonomics is a data management platform designed for e-commerce affiliates that aggregates and standardizes fragmented affiliate program data across multiple channels.

AdTechData & InfrastructureE-commerceMarketing TechSaaS

Wattbikewattbike.comin

Wattbike manufactures stationary cycling equipment and training systems for athletes ranging from elite competitors to casual fitness enthusiasts.

HardwareSports TechWellness & FitnessNottingham, GB

Yasayasa.cominacquired by Mercedes Benz

YASA develops axial flux electric motors ('eMotors') and control systems for electric vehicles and other electrification applications, using a proprietary Yokeless And Segmented Armature design that reduces motor size and weight while increasing power and torque density.

CleantechHardwareMobility & TransportationOxford, GB

Tim Woolmer(CTO & Founder)in

Co-investorsOxford Science EnterprisesParkwalk AdvisorsInovia Capital

Other

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

CaptiniEquilumeGrowthintelligenceHelloayrHybrid AccessMygwork

Exits · 1

1 acquisitions

Yasaacq. by Mercedes Benz

Portfolio news

latest coverage across their companies

Principals & officers · per Companies House

what is this? ⓘ
Marek Stefan Gumienny

Director · British · since 2024

Simon Neville Arden Leefe

Director · British · since 2024

Nicholas Andrew Lindsay Stuart

Director · British · since 2024

Paul Michael Tselentis

Director · British,Greek,South African · since 2015

Frequently asked questions

How many investments has 24 Haymarket made?
24 Haymarket has 55 tracked investments, 1 of which have exited, including 1 dated in the last 24 months.
What stage does 24 Haymarket invest at?
24 Haymarket invests at the Seed, Series A, Growth stages.
What sectors does 24 Haymarket focus on?
24 Haymarket focuses on Sector Agnostic.
Where is 24 Haymarket located?
24 Haymarket is headquartered in London, GB.
Does 24 Haymarket lead rounds?
Yes, 24 Haymarket leads investment rounds.
Who does 24 Haymarket co-invest with?
24 Haymarket most often shares deals with QVentures, Martlet Capital, Molten Ventures, among 56 tracked co-investors.

Co-investors · 3

ACF Investors

ACF Investors is a £100M UK venture capital fund that backs entrepreneurs across most sectors, co-investing alongside sector-focused angel investors.

Both backed · 1
$125K – $1.3M
Business Growth Fund

BGF provides minority growth capital and support to entrepreneurial small and medium-sized businesses across the UK and Ireland, from university spinouts to established brands.

$3.8M – $38M
Ananda Impact Ventures

Ananda Impact Ventures is a venture capital firm that invests in social enterprises based in Europe addressing social issues across the region. The firm focuses on early-stage and growth-stage companies in the social impact sector.

$540K – $3.2M

Firms observed investing alongside 24 Haymarket, from public investor directories. Shared companies are the overlap with 24 Haymarket's recorded portfolio.

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