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Souter Investments

Family office

Edinburgh · Growth–Late Stage · 13 people tracked

Also known as Dmws 1067 Limited

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Investment thesis

Souter Investments specialises in private equity investments in unquoted companies, deploying its capital in a supportive manner that aligns the interests of investors, founders and management teams around a shared set of clear objectives. Since its founding in 2008 the firm has invested more than £750m across over 100 private companies, spanning current and realised holdings. As a family investment office established by Sir Brian Souter, it channels a portion of its returns to the Souter Charitable Trust, which funds projects aimed at relieving human suffering in the UK and abroad.

Source: firm website, verified Sep 27, 2026.

Stage
Growth–Late Stage
Check
$2.5M – $38M
HQ
Edinburgh, GB
Leads rounds
Leads
Instruments
Equity
Founded
2008
Tracked investments
83
Unicorns
1
Acquisitions
3

Team · 13 people

from the firm's website
Andy Macfie· Chairman
Sir Brian Souter· Co-founder of Souter Investments

Founder of Souter Investments, the UK family investment office.

Scott Mackenzie· Investment Directorin
Allan Clark· Head of Financein
Calum Cusiter· Managing Directorin

Member of the Souter Investments team.

Chris McFadden· Investment Associate
Holly Wilkie· Investment Analyst
John Berthinussen· Managing Director

Member of the Souter Investments team.

Kelly Dunn· Senior Finance Assistant
Sally Archibald· PA and Office Managerin
Stephen Martin· Finance Manager

What they invest in

from 25 of 83 portfolio companies

Enterprise Software ×9Cleantech ×6Energy ×5SaaS ×5Advanced Manufacturing ×4Construction Tech ×4AI & Machine Learning ×3Climate Tech ×3

HQs:United Kingdom×13Ireland×2Denmark×1Sweden×1

Investments · 83 tracked

founders shown can be your intro path
Acteon Groupacteon.comin

Acteon provides offshore infrastructure services supporting energy assets across their full lifecycle, including data-driven insights, engineering consultancy, and offshore execution services.

CleantechClimate TechConstruction TechEnergyEnterprise Software

Co-investorsLime Rock PartnersOne Equity Partners

Akixiakixi.com

Akixi offers a CX intelligence suite that adds AI-powered call analytics, conversational intelligence, call recording, and CRM integration on top of UCaaS platforms like Microsoft Teams, Cisco Webex, and Cisco BroadWorks.

AI & Machine LearningEnterprise SoftwareSaaS

Alexander Dennisalexander-dennis.com

Alexander Dennis manufactures buses and coaches, including double-decker and single-decker models and zero-emission vehicles, for public transport operators.

Advanced ManufacturingCleantechMobility & Transportation

Amillionadsamillionads.comin𝕏

A Million Ads builds dynamic, personalized audio and digital advertising, working across creative, engineering, and sales functions to produce and manage ad campaigns.

AdTechMarketing TechSaaS

Steve Dunlop(Founder)inPaul Kelly(CEO)inJoanne Grindrod(CFO/COO)in

Co-investorsAscensionCreative HQ — The IncubatorGMG VenturesMercuri.vcPredictive VCAscension Ventures

Argent Energyargentenergy.com

Argent Energy is a European producer of second-generation biodiesel made from waste fats and oils, with annual output of around 195,000 metric tonnes.

Circular EconomyCleantechEnergy

Ashtead Technologyashtead-technology.com

Ashtead Technology rents subsea equipment and provides related solutions to the global offshore energy sector, covering offshore renewables and later-life oil & gas projects.

EnergyHardwareRobotics

Baywater Healthcarebaywater.co.uk

Baywater Healthcare is an independent provider of home-based healthcare services for patients with long-term respiratory and other conditions, including home oxygen therapy, telehealth, virtual wards, sleep apnoea (CPAP) treatment, ventilation and pulmonary rehabilitation.

Digital HealthHealthtechMedical Devices

CellPoint Digitalcellpointdigital.comin𝕏

CellPoint Digital provides payment and fintech solutions for the travel industry, leveraging expertise in payments processing, financial services, and global commerce infrastructure.

Enterprise SoftwareFintechSaaSTravel & Hospitality

Kevin Murphy(CEO)in

Co-investorsSPWOne

CJ Falloncjfallon.ie

CJ Fallon is an Irish educational publisher that has produced textbooks and learning resources for primary and post-secondary students since 1895.

EdTechMedia & EntertainmentIreland, IE

Co-investorsLevine Leichtman

Climate Impact Partnersclimateimpact.comin𝕏

Climate Impact Partners helps companies achieve climate goals through voluntary carbon market solutions and carbon project development.

CleantechClimate TechEnergyImpact & Social Good

Sheri Hickok(Chief Executive Officer)inWill Rusden(Chief Financial Officer)inAlexandra Connac(Chief Corporate Affairs and Impact Officer)inKelly Fitzwater(Chief Operating Officer)inRyan King(Chief Growth Officer)in

Co-investorsAlexander Square Partners

Daisy AIjoindaisy.coin

Daisy analyzes supply, demand, and production data using AI models to help food processors reduce waste and improve efficiency.

AgTechAI & Machine LearningEnterprise SoftwareFoodTechParis, IE

Andrew Moore(CEO)inChirag Joshi(CTO)in

Co-investorsEntrepreneur FirstTranspose Platform Management

Enduraendurasport.comAcquired

Endura designs and sells cycling apparel and gear for road and trail riders.

Direct to ConsumerE-commerceSports Tech

Co-investorsMaven Capital PartnersPentland Brands

esureesure.com

esure provides car and home insurance products to consumers in the UK, including comprehensive cover for electric and hybrid vehicles.

ConsumerFintechInsurTech

First Scottishfirstscottish.com

First Scottish provides property and land searching services along with document management solutions, primarily serving the conveyancing and property market in Scotland.

LegalTechPropTech

Likezerolikezero.co.ukin𝕏

Likezero provides data extraction and intelligence solutions from legal agreements to help businesses manage client lifecycles.

AI & Machine LearningData & InfrastructureEnterprise SoftwareFintechLegalTechUK, GB

Vivek Bajaj(Chief Executive Officer)in

McAvoymcavoygroup.comin𝕏

McAvoy manufactures modular buildings for permanent and temporary deployment across education, health, commercial, and pharmaceutical sectors in the UK and Ireland.

Advanced ManufacturingConstruction TechUK and Ireland, GB

Co-investorsBlantyre CapitalOakNorth

Octavius Infrastructureoctavius.co.uk

Octavius Infrastructure plans, builds, maintains and improves transport infrastructure including roads, railways and transport hubs across England and Wales.

Construction TechImpact & Social GoodMobility & Transportation

Pelionpelion.com

Pelion provides managed cellular IoT connectivity services—including LPWAN, eSIM, and 5G—for solution providers, OEMs, and enterprise IoT projects.

Cloud ComputingCybersecurityEnterprise SoftwareHardwareIoTSaaS

Dave(CEO)Alan(CTO)Lorna(CFO)Niall(CCO)Scott(CIO)

Co-investorsScottish Equity Partners

Premier Modularpremiermodular.co.ukin

Premier Modular is a UK-based offsite construction specialist that designs and manufactures modular building solutions for various applications.

Advanced ManufacturingCircular EconomyCleantechConstruction TechPropTechUK, GB

Co-investorsMML UK Advisor

Refinedrefined.comin𝕏Jun 2023

Refined Sites for Confluence enables organizations to build custom intranets, documentation sites, and knowledge bases by organizing Confluence content into branded, user-friendly websites without requiring code.

Developer ToolsEnterprise SoftwareSaaSMalmö, SE

Co-investorsStandout Capital II

TWMAtwma.comin𝕏

TWMA designs, manufactures, and installs equipment and solutions for the safe transfer, storage, and processing of drilling waste and associated materials from offshore and onshore oil and gas operations.

Advanced ManufacturingCleantechClimate TechEnergyEnterprise SoftwareAberdeen, GB

Halle Aslaksen(Chief Executive Officer)Mark Walker(Chief Financial Officer)Simon Tyldsley(Chief Operating Officer)in

Co-investorsLime Rock Partners

UKATukat.co.uk

UKAT (UK Addiction Treatment Centres) operates 10 CQC-regulated residential rehabilitation centres across the UK with over 300 beds, providing medically supported detox, primary and secondary treatment, and aftercare for people with addiction and associated mental health conditions.

HealthtechMental HealthWellness & Fitness

Virgin Mobile Latin Americavirginmobilelatam.com

Virgin Mobile Latin America operates as a mobile virtual network operator (MVNO), running Virgin Mobile-branded prepaid mobile services across Latin American markets.

Consumer

Peter MacneeRuss(Executive)Joel KadesinJimJeff BuckwalterinCatherine

Voyage Carevoyagecare.com

Voyage Care provides tailored, person-centred care and support for individuals with a range of needs across the UK.

HealthtechWellness & Fitness

Wireless Infrastructure Groupwirelessinfrastructure.comin

A wireless infrastructure company that designs, builds, and maintains tower sites and indoor installations to deliver mobile connectivity for telecom operators and their end users.

Enterprise SoftwareHardwareIoTLondon, GB

Scott Coates(Group CEO and Founder)in

Co-investors3i Group

Other

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

ACTEONAgilicoAgitoAmber RiverAmerplastAmeyAncora GroupArdentBroadway PartnersCARDOCardo GroupCelsus GroupClive ChristianCollingwoodCoretraxCrest ExperiencesDivideBuyEaton Gate VigilisEFC GroupEMCASERA GroupForLifeForlife GroupFullers360Global Risk PartnersHowick & EasternIDOIntralinkKids PlanetKuraLeaderMana Coach ServicesManaBus.com & Nakedbus.comMobius LifeNeossNewcastle Tool and GuageNucoreOne Search DirectPayenPet Network InternationalPremier HytempReesby's RotoruaRefined BrandsSapphireSI-UKStone GroupSuirSuir EngineeringSumerSunseekerSurepharmTalkTalkTracercoTrio HealthcareVPSWINNZelusZenix Aerospace

Exits · 3

3 acquisitions · showing 1

Global Risk Partnersacq. by Brown & Brown, Inc.

Portfolio news

latest coverage across their companies

Principals & officers · per Companies House

what is this? ⓘ
DM Company Services Limited

Corporate secretary · since 2016

John Douglas Berthinussen

Director · British · since 2021

Calum Geoffrey Cusiter

Director · British · since 2021

Andrew James Macfie

Director · British · since 2016

Brian Souter

Director · British · since 2016

Ownership & control

Amy Catherine Henley — 25–50% of shares, 25–50% of voting rights

Fraser Ian Souter — 25–50% of shares, 25–50% of voting rights

Calum John Souter — 25–50% of shares, 25–50% of voting rights

Timothy Rodger Nelson — 25–50% of shares, 25–50% of voting rights

Wilma Ann Roger Allen — 25–50% of shares, 25–50% of voting rights

Lady Elizabeth Mcmahon Souter — 25–50% of shares, 25–50% of voting rights

Sir Brian Souter — 25–50% of shares, 25–50% of voting rights

Frequently asked questions

How many investments has Souter Investments made?
Souter Investments has 83 tracked investments, 3 of which have exited.
What stage does Souter Investments invest at?
Souter Investments invests at the Growth, Late Stage stages.
What is Souter Investments's typical check size?
Souter Investments typically writes checks of $2.5M – $38M.
What sectors does Souter Investments focus on?
Souter Investments focuses on Advanced Manufacturing, Construction Tech, Consumer, EdTech, Energy, Fintech, Healthtech, InsurTech, Mobility & Transportation, PropTech, SaaS, Sector Agnostic.
Where is Souter Investments located?
Souter Investments is headquartered in Edinburgh, GB.
Does Souter Investments lead rounds?
Yes, Souter Investments leads investment rounds.
Who does Souter Investments co-invest with?
Souter Investments most often shares deals with Maven Capital Partners, Alexander Square Partners, Lime Rock Partners, among 18 tracked co-investors.

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