UK Billion-Pound Businesses
Foreword

James Whittaker
Head of Wealth Management UK & Nordics and CEO, Deutsche Bank UK Ltd.
Much has been written recently about entrepreneurs leaving the UK. But this 2026 UK Billion-Pound Businesses list is a reminder that the UK is still a remarkable place to build a business.
The founder-led companies featured here span very different industries, backgrounds and generations. What connects them is the willingness of their leaders to take risks, make difficult decisions and keep adapting. Building a business of this scale rarely follows a straight line. It takes conviction to invest when the outcome is uncertain, resilience when plans change and the judgement to know when to push ahead or change course.
The UK continues to offer many of the ingredients that entrepreneurs need to succeed: access to capital and talent, deep expertise, international connections and a long history of entrepreneurship. In an increasingly competitive world, we shouldn’t take those strengths for granted. But nor should we overlook them. The UK continues to be a place where ambitious businesses can be built, financed and grown.
Having spent much of my career working with entrepreneurs, including some in this list, I’ve also seen just how closely the personal and professional are connected. For a founder, a decision about the business is rarely just a business decision. Raising capital, acquiring, expanding internationally or eventually selling can have consequences well beyond the company itself. That is why entrepreneurs need advisers who understand the bigger picture.
It is also the thinking behind Deutsche Bank’s Bank for Entrepreneurs, which we rolled out in the UK in 2026. Recognised by Euromoney, the approach brings together expertise from across the bank around the needs of entrepreneurs, starting from a simple premise: business and personal ambitions are often inseparable, so the advice around them shouldn’t be disconnected either.
The 2026 list is an impressive snapshot of the UK’s entrepreneurial ambition. When there is plenty of debate about the UK’s future, it is worth taking a moment to celebrate what is still being built here.
1Nikolay StoronskyRevolut£56.3 billion
Revolut is the UK payments app co-founded in 2015 by physicist-turned-trader Nikolay Storonsky. What began as a scrappy startup has grown into one of the UK's biggest fintech success stories, evolving into a fully licensed bank and reaching a valuation in the tens of billions. As CEO, Storonsky remains a fixture at the top of the UK's rich lists, while co-founder Vlad Yatsenko has stepped back from day-to-day leadership into a non-executive role, marking a shift in the company's founding partnership as it enters its next phase of growth.
- Industry
- Financial services
- Founded
- 2015
- HQ
- Canary Wharf, London
2Sir Jim RatcliffeINEOS£20.7 billion
Sir Jim Ratcliffe founded INEOS in 1998 after buying a former BP chemicals plant in Antwerp for £84m. A relentless run of acquisitions since then has turned INEOS into a sprawling industrial group spanning 28 businesses across 26 countries, including INEOS Nitriles and INEOS Technologies. Its products now touch nearly every corner of modern life, from automotive to consumer goods to healthcare. Ratcliffe himself has become one of the UK's most recognisable billionaires, with stakes in sporting institutions including Manchester United FC.
- Industry
- Multiple
- Founded
- 1998
- HQ
- Knightsbridge, London
3Sir James DysonDyson Group£10 billion
33 years since James Dyson launched the DC01, his first own-brand vacuum cleaner, Dyson Group has become perhaps the biggest UK-born engineering brand. Manufacturing shifted to Malaysia in 2002 and a new headquarters was established in Singapore in 2019. The business has now expanded out from cleaning appliances to other exciting growth categories including hair care, helping to establish Dyson as one of the world’s most recognisable technology companies.
- Industry
- Technology
- Founded
- 1991
- HQ
- Hullavington, Wiltshire
4Mohsin Issa CBE and Zuber Issa CBEEG Group£8.6 billion
EG Group, founded by brothers Mohsin and Zuber Issa, has gone from a single Bury forecourt to one of the world's leading convenience retail and fuel businesses, with the Blackburn-based pair building a reputation as one of the UK’s most successful entrepreneurial partnerships. Both have stepped back from day-to-day leadership to pursue new projects as the business eyes a US listing.
- Industry
- Retail
- Founded
- 2001
- HQ
- Blackburn, Lancashire
5Sir Peter Ogden and Sir Philip HulmeComputacenter£7.6 billion
Computacenter is a multinational IT infrastructure and services company, founded in 1981 by Sir Peter Ogden and Sir Philip Hulme. The business helps organisations source, set up, and manage technology at scale – from hardware and cloud services to digital infrastructure. Its founders' technical and commercial expertise have bestowed an ability to ride successive technology waves. That adaptability has enabled Computacenter to join the FTSE 100 for the first time in 2026.
- Industry
- Technology
- Founded
- 1981
- HQ
- Hatfield, Hertfordshire
6Kristo KäärmannWise£7.2 billion
Wise started as a simple fix for two friends' frustration with bad exchange rates and has since grown into one of the UK's biggest fintech success stories – a rare example of a company from that sector reaching global scale while staying profitable. This year has brought some turbulence due to regulatory scrutiny in Europe, but Wise remains one of the most valuable fintechs to come out of the UK.
- Industry
- Financial services
- Founded
- 2011
- HQ
- Shoreditch, London
7=Alex Kendall OBEWayve£6.7 billion
Co-founded in 2017 by engineer Alex Kendall, Wayve has grown from an ambitious autonomous-driving start-up into one of the UK’s biggest AI companies, developing a single AI driver designed to adapt across cities, vehicles and markets. The company has raised around £2bn and is backed by Microsoft, Uber and Mercedes-Benz. Kendall, who was awarded an OBE for services to AI in 2025, is now at the wheel of Wayve’s push to bring autonomous driving to UK roads by 2027.
- Industry
- Technology
- Founded
- 2017
- HQ
- King's Cross, London
7=Denise Coates CBE and John Coatesbet365£6.7 billion
bet365 was founded in 2001 by Denise and John Coates after years spent working in the family's bookmakers. The company grew rapidly on the strength of its technology, pioneering in-play betting and becoming one of the world's largest online gambling operators. Today, bet365 employs around 10,000 people and operates across dozens of countries worldwide, yet it remains headquartered in Stoke-on-Trent, the town where it began.
- Industry
- Betting and gaming
- Founded
- 2001
- HQ
- Stoke-on-Trent, Staffordshire
9Dame Mary Perkins and Douglas Perkins CBESpecsavers£5.9 billion
Specsavers was founded in 1984 by husband-and-wife team Mary and Doug Perkins, launched after Thatcher-era reforms helped to revolutionise the optical care industry. Since opening its first store in Guernsey, the business has grown into the world's largest privately owned eye care and audiology company, spanning multiple continents and thousands of stores. In 2026 it continues to buck the dying high-street trend, posting strong sales growth and a multi-billion-pound valuation.
- Industry
- Retail
- Founded
- 1984
- HQ
- Guernsey
10Simon Arora and Bobby AroraB&M European Value Retail£5 billion
B&M is a UK value retailer built by brothers Bobby and Simon Arora, who acquired the struggling 21-store chain in 2004 and transformed it with a hard-won direct Asian importing network. Leveraging that supply chain to undercut rivals on price, they have since grown the brand into a national chain with hundreds of stores, thousands of staff, and an expansion into France, taking it public on the London Stock Exchange in 2014 and into the FTSE 250 one year later.
- Industry
- Retail
- Founded
- 2004 (acquired)
- HQ
- Speke, Liverpool
11Greg Jackson CBEOctopus Energy£4.9 billion
Octopus Energy was founded in 2015 by Greg Jackson, who was on a mission to use technology to make green energy cheaper and more customer friendly. In 2025, Octopus overtook British Gas to become the UK's largest household energy supplier. Now serving over 10 million customers across some 30 countries, and with a multibillion-pound renewables portfolio, Octopus is easily one of the UK's most prominent green tech success stories.
- Industry
- Energy and utilities
- Founded
- 2015
- HQ
- Fitzrovia, London
12Bill HolmesRadius£4.7 billion
Bill Holmes founded UK Fuels in 1990 above a hairdressing salon in Cheshire, building it into Radius Payment Solutions following a 2013 merger of more than 20 European fuel-card businesses. Under his stewardship, Radius has grown into a global mobility and connectivity group spanning telematics, insurance, vehicle solutions, telecoms and EV charging across roughly 19 countries. Holmes published a memoir on his entrepreneurial journey in 2026.
- Industry
- Business services
- Founded
- 1990
- HQ
- Crewe, Cheshire
13=Anne Boden MBEStarling£4.6 billion
Founded in 2014 by Anne Boden, Starling Bank grew from her frustration with slow-moving legacy banks into one of the UK's leading digital challengers. Boden led the company to its full UK banking licence and its expansion into savings, business banking and a marketplace of financial products. She departed as CEO in 2023 but the bank she built has continued her momentum: in 2026 it became the first UK challenger to post five consecutive years of profitability.
- Industry
- Financial services
- Founded
- 2014
- HQ
- Spitalfields, London
13=Tom MorrisHome Bargains£4.6 billion
Home Bargains was founded in 1976 by Tom Morris, a Liverpudlian and third-generation retailer who opened his first store, then known as Home and Bargain, aged just 21. Steady, deliberate expansion turned the single shop into a national discount retail chain spanning hundreds of stores, with a broadening offer that now includes cafés and garden centres alongside its core value proposition. Morris has kept the majority ownership of parent company TJ Morris, and has made Home Bargains one of the UK's most resilient discount retailers.
- Industry
- Retail
- Founded
- 1976
- HQ
- Gillmoss, Liverpool
15Mike AshleyFrasers Group£4.2 billion
Frasers Group, founded in 1982 by Mike Ashley, is the UK's largest sporting goods retailer, built from a single Maidenhead ski shop into a portfolio of dozens of brands spanning sport, fashion and beyond. The group has continued to expand through acquisitions and stakes in other retailers, with international growth now a key driver of its performance. Ashley remains a director and the driving force behind its dealmaking, as one of UK retail's most infamous figures.
- Industry
- Retail
- Founded
- 1982
- HQ
- Shirebrook, Derbyshire
16Sir Richard HarpinHomeServe£4.1 billion
Sir Richard Harpin founded HomeServe in 1993 as a joint venture with South Staffordshire Water. Partnerships with other water companies and new services drove growth, and HomeServe listed on the London Stock Exchange in 2004, joining the FTSE 100 in 2020. In 2023, Harpin sold it to Brookfield Infrastructure Partners for £4.1bn. He now helps mid-sized businesses scale through his investment vehicle Growth Partner and Business Leader, acquired in 2023.
- Industry
- Financial services
- Founded
- 1993
- HQ
- Walsall, West Midlands
17Anthony LangleyLangley Holdings£3.7 billion
Set up by Tony Langley in 1975 to supply equipment to the UK coal industry, Langley Holdings has grown into a family-owned, globally operating engineering and industrial group. Pursuing an acquisition strategy over the years, the group today has annual revenues in excess of €1.3bn and profit before tax of over €150m. Langley remains actively involved in guiding the group's long-term strategy in the role of CEO.
- Industry
- Manufacturing
- Founded
- 1975
- HQ
- Retford, Nottingham
18Ian Livingstone and Richard LivingstoneL+R£3.1 billion
L+R is a property and leisure investment firm founded in 1987 by brothers Ian and Richard Livingstone, who built their early fortune from retail. Formerly London & Regional Properties, it rebranded as L+R in 2026, in a signal that the previously wholly privately funded business could soon be opening to investors. The firm now holds a £10bn+ portfolio, including around 115 hotels.
- Industry
- Property
- Founded
- 1987
- HQ
- Marylebone, London
19Harry HymanPrimary Health Properties£3 billion
Primary Health Properties (PHP) was founded in 1995 by Harry Hyman. His vision was to buy NHS GP surgery buildings and lease them back to practices. The company soon listed on the AIM and moved to the main market in 1998. A 2019 £1bn merger with MedicX made it the largest private owner of UK and Irish primary care property and today, it holds around £6bn in property and serves 11 million patients. Hyman stepped down as CEO in 2024, handing over to Mark Davies.
- Industry
- Property
- Founded
- 1995
- HQ
- Charing Cross, London
20William ShuDeliveroo£2.9 billion
Co-founded in 2013 by Will Shu, Deliveroo quickly grew from a one-man bike delivery into one of the UK's defining tech unicorns, built around the promise of fast, reliable food parcels for cities that lacked it. The company expanded rapidly and was acquired by DoorDash in an all-cash £2.9bn deal that closed in October 2025. Shu, who stepped down from the company that same month, leaves behind a business that reshaped how the world orders food.
- Industry
- Technology
- Founded
- 2013
- HQ
- Monument, London
21Sir Peter RigbyRigby Group£2.8 billion
Rigby Group is the company Sir Peter Rigby has built from a £2,000 investment into a multi-billion-pound business employing around 9,000 people. Its core is SCC, one of Europe's largest IT resellers and services providers, but the group has long run as a hybrid trading and investment business spanning hotels and property. The 2025 sale of its airports division to ICG gives it additional capital to back its push into AI, cloud and cybersecurity.
- Industry
- Multiple
- Founded
- 1975
- HQ
- Stratford-upon-Avon, Warwickshire
22=Victor Riparbelli and Steffen TjerrildSynthesia£2.6 billion
Synthesia is the London AI video company betting that corporate communication doesn't need cameras. Founded in 2017 by Victor Riparbelli, Steffen Tjerrild and two computer vision academics, it sells AI avatars that read scripts in over 150 languages and has found its most lucrative market in enterprise training and onboarding. A $200m Series E led by Alphabet's GV in 2026 nearly doubled its valuation, making it one of the UK's most valuable private AI firms.
- Industry
- Technology
- Founded
- 2017
- HQ
- Regent's Place, London
22=Rishi Khosla OBEOakNorth£2.6 billion
Co-founded in 2015 by Rishi Khosla, OakNorth Bank is serving the "missing middle" of established businesses which are too large to bootstrap yet often ignored by mainstream City finance. Built on its own data-driven lending platform, OakNorth has so far lent over £15bn to entrepreneurs across sectors including property, healthcare and hospitality, and it’s also expanding rapidly into the US lending space.
- Industry
- Financial services
- Founded
- 2015
- HQ
- Soho, London
24Martin KissingerLendable£2.3 billion
Martin Kissinger is founder and CEO of Lendable, which he launched in 2014 aged just 25. His bet was that AI could strip away much of the friction from consumer credit to make lending faster and more accurately priced. Today, Lendable has originated more than £10bn in consumer credit, crossed into the US and grown into a profitable fintech. What began as a challenge to the traditional lending model has become a serious financial institution in its own right.
- Industry
- Financial services
- Founded
- 2014
- HQ
- Old Street, London
25=Mark DixonIWG£2.2 billion
Today IWG, formerly Regus, is the world's largest flexible workspace provider, operating 4,600 locations across 121 countries. Founded by Mark Dixon in 1989, Dixon has grown the business from a single Brussels-based venture aimed at giving businesspeople better deals on leases, into a global leader servicing the future world of work. In 2026, Dixon stepped back from the CEO role after nearly 40 years. He remains executive chairman, leaving the CEO chair but not the office.
- Industry
- Property
- Founded
- 1989
- HQ
- Paddington, London
25=Tim Steiner OBEOcado Group£2.2 billion
In 2000, three former Goldman Sachs bankers, Tim Steiner, Jonathan Faiman and Jason Gissing, had the idea for Ocado to solve grocery's "last mile" problem with automated warehouses and algorithms. It floated in 2010 and joined the FTSE 100 in 2018 before dropping out in 2024. Steiner, the only founder still there, has turned Ocado into a major robotics and software licensor for retailers. Awarded an OBE in 2016, he will step down as chief executive in 2028.
- Industry
- Technology
- Founded
- 2000
- HQ
- Hatfield, Hertfordshire
27=Sir Richard BransonVirgin Group£2 billion
Virgin Group, founded by Richard Branson in 1970, is a network of independently run companies in travel, telecoms, space, music and more, held together by a shared brand that’s part-owned, part-licensed out for a fee. Today, Branson has stepped into a founder role, shaping a generation of entrepreneurs through his personality-driven style of leadership as much as through Virgin itself.
- Industry
- Multiple
- Founded
- 1970
- HQ
- Fitzrovia, London
27=Vishal Marria CBEQuantexa£2 billion
Quantexa is the London decision intelligence company founded in 2016 by Vishal Marria, built on software that resolves scattered, inconsistent data into a single connected picture of customers, transactions and relationships. It began by helping banks detect money laundering and fraud and has since expanded into insurance, telecoms, healthcare and the public sector.
- Industry
- Technology
- Founded
- 2016
- HQ
- Waterloo, London
29John Bloor OBEBloor Homes£1.8 billion
John Bloor went from plasterer apprentice to the UK’s wealthiest man in construction. Starting out by building his own first home in Leicestershire, he went on to found Bloor Homes, today the UK's largest privately owned homebuilder, and later took a punt on a struggling motorbike brand that few believed in. Both bets paid off spectacularly, and with a UK housing market that’s primed for growth, Bloor Homes will not be leaving the spotlight any time soon.
- Industry
- Construction
- Founded
- 1969
- HQ
- Measham, Leicestershire
30=Gordon Sanghera CBE and Spike WillcocksOxford Nanopore Technologies£1.7 billion
Oxford Nanopore is the University of Oxford spinout that made DNA sequencing portable, reading genetic code by passing strands through protein pores and measuring changes in electrical current. Co-founded in 2005 by Gordon Sanghera, Hagan Bayley and Spike Willcocks, it floated in London in 2021 in one of the market's largest tech listings and now sits in the FTSE 250, with 2025 revenue of £223.9m. Sanghera stepped back in 2026, handing a business with proven technology and unproven economics to a new chief executive.
- Industry
- Healthcare
- Founded
- 2005
- HQ
- Oxford, Oxfordshire
30=Peter Done and Fred DoneBetfred£1.7 billion
Betfred was founded in 1967 by brothers Fred and Peter Done, funded by a bet on England’s 1966 World Cup win. It grew into one of the UK’s largest independent high-street bookmakers, with more than 1,300 shops and 9,500 employees. In 1989, a coin toss split the brothers’ joint venture: Peter took on a struggling HR advisory sideline, building it into Peninsula, a global employment law consultancy, while Fred stayed in charge of Betfred, before stepping into a chairman role in 2021.
- Industry
- Betting and gaming
- Founded
- 1967
- HQ
- Warrington, Cheshire
32Nicholas VetchBig Yellow Group£1.5 billion
Nicholas Vetch co-founded Big Yellow in 1998, bringing the US model of branded self-storage to the UK. Now a FTSE 250, its real edge is prime, high-visibility real estate in London and its commuter towns. Having stepped back from the CEO role in 2003, Vetch has remained a constant presence as executive chairman through two decades of consolidation and now anchors the business through Gibson's 2026 retirement.
- Industry
- Property
- Founded
- 1998
- HQ
- Bagshot, Surrey
33Serge Belamant, Philip Belamant, and Sean O'ConnorZilch£1.4 billion
Zilch is a fintech offering interest-free “buy now, pay later” credit, funded by advertisers and retailers, not customer fees. Founded in 2018, it launched publicly in 2020 and reached unicorn status within 14 months. In 2025, the company had over five million customers, revenue rose 93 per cent to £110.3m and a full European banking licence is pending.
- Industry
- Financial services
- Founded
- 2018
- HQ
- Westminster, London
34=Mark SlackCMR Surgical£1.2 billion
CMR Surgical is a Cambridge-based med-tech company building robotic systems for surgery. Co-founded by Mark Slack, a trained doctor, the company’s magnum opus has been its Versius product, a surgical robot now used in tens of thousands of procedures across dozens of countries. Despite the company's rapid growth and over £900m in funding achieved, Slack has kept one foot firmly in the clinic – he's chief medical officer, not CEO, and still practises medicine today.
- Industry
- Healthcare
- Founded
- 2014
- HQ
- Evolution Business Park, Cambridge
34=Henry MoserTogether£1.2 billion
Together is the Cheadle-based specialist lender Henry Moser co-founded in 1974, now one of the largest non-bank finance groups in the UK. It lends against property to borrowers that the mainstream banks often decline. Moser, who left school at 16, stepped back from the chief executive role in 2025 but remains executive vice chairman, having built one of the North West's largest private fortunes from a business that has now weathered five decades of property cycles.
- Industry
- Financial services
- Founded
- 1974
- HQ
- Cheadle, Greater Manchester
36=Lior Shiff, Akin Babayigit, and Eyal ChameidesTripledot Studios£1.1 billion
Tripledot Studios is a London mobile games developer behind hit titles including Woodoku, Solitaire.com and Triple Tile. Founded in 2017 by three games-industry veterans, it has built a reputation for profitable, data-driven casual games that now reach an estimated 25 million people around the world every day. Tripledot operates 12 studio brands across 23 cities globally, has more than 2,500 team members and generates approximately $2bn in gross revenue annually.
- Industry
- Gaming
- Founded
- 2017
- HQ
- Euston, London
36=Laurence Graff OBEGraff Diamonds£1.1 billion
Laurence Graff went from a school dropout at age 14 to founding one of the world's leading luxury diamond houses known for handling rare, ethically sourced gemstones. His early success came from selling custom high-value and buying headline-grabbing pieces at auction – a business canniness that persists today. Dubbed the "King of Bling" and worth an estimated £3.75bn, his journey from East End apprentice to industry titan is a rags-to-riches story built on sharp instinct.
- Industry
- Retail
- Founded
- 1960
- HQ
- Mayfair, London
36=Peter Jones OBEEmerson Developments£1.1 billion
Emerson Developments, trading as the Emerson Group, is the Alderley Edge property company Peter Emerson Jones founded in 1959 after training as a joiner. It spans three arms: Jones Homes on the residential side, Orbit Developments in commercial property, and Emerson International in Florida and the Algarve. That mix – a rent-generating commercial estate with housebuilding – has let it ride out property cycles that punished pure housebuilders. The group now sits on gross assets of around £2.1bn with virtually no external ownership.
- Industry
- Construction
- Founded
- 1959
- HQ
- Alderley Edge, Cheshire
36=Charlotte Tilbury CBECharlotte Tilbury Beauty£1.1 billion
In 2013, Charlotte Tilbury turned a teenage beauty obsession into Charlotte Tilbury Beauty, now one of the UK’s biggest make-up brands. Now teenaged itself, the business is thriving. It recently expanded its physical retail footprint with a rollout into Boots. Still chairman, president and chief creative officer, Tilbury is one of a handful of sole female founders of a UK billion-pound business.
- Industry
- Retail
- Founded
- 2013
- HQ
- Temple, London
40=Euan Blair MBEMultiverse£1 billion
Multiverse was co-founded by Euan Blair in 2016 as WhiteHat to route school leavers into digital apprenticeships rather than university degrees. It has since become an enterprise training platform focused on data and AI skills for existing employees. It is the UK’s first edtech unicorn and is expanding into Europe following its acquisition of Berlin's StackFuel. Revenue reached £79.6m in the year to March 2025, and a first cash-positive quarter in early 2026 shows real momentum.
- Industry
- Technology
- Founded
- 2016
- HQ
- Paddington, London
40=Mark CoombsAshmore£1 billion
Ashmore Group is a London-listed asset manager specialising in emerging market debt, currencies and equities. Mark Coombs established the business inside ANZ in 1992 and spun it out through a management buyout. Seven years later, he floated it on the London Stock Exchange. Today, Ashmore is a FTSE 250 company and manages around $54bn in pooled funds, segregated accounts and structured products.
- Industry
- Financial services
- Founded
- 1992
- HQ
- Westminster, London
40=Sir Rocco Forte and Olga Polizzi CBERocco Forte Hotels£1 billion
Sir Rocco Forte and his sister Olga Polizzi co-founded Rocco Forte Hotels in 1999 after the sale of their family business. Sir Rocco serves as chairman, Olga as director of design and deputy chair. Under their leadership the group has developed a collection of luxury hotels across Europe, emphasising craftsmanship, heritage and boutique hospitality. Their combined vision blends operational management and design excellence, making the business a prominent privately-owned hotel group in the UK and beyond.
- Industry
- Hospitality and leisure
- Founded
- 1999
- HQ
- Westminster, London
40=Surinder AroraArora Group£1 billion
Surinder Arora once waited tables near Heathrow, before opening a bed and breakfast there for airline crew in 1993. Then, a British Airways contract in 1999 turned it into Arora Group, which has since grown into the UK's largest family-owned hotel company, with over £3bn of assets and 8,500 rooms. Now executive chair, with his son Sanjay as chief executive, Arora remains the group's public face and the force behind Heathrow West, its rival third-runway scheme.
- Industry
- Hospitality and leisure
- Founded
- 1999
- HQ
- Hounslow, London
40=Eben Upton CBERaspberry Pi£1 billion
Raspberry Pi started in 2008 as a low-cost computer to teach kids programming. Under co-founder and CEO Eben Upton, it's become a billion-pound business and the UK's best-selling computer ever. Demand has accelerated with the recent boom in edge AI, and Upton's steady, confident leadership has helped Raspberry Pi scale into a global player while staying true to its mission of making powerful hardware accessible to all.
- Industry
- Technology
- Founded
- 2008
- HQ
- Cambridge Science Park, Cambridge
40=Mia DrennanGLAS£1 billion
GLAS is a pioneer in the non-bank loan agency, structured finance and corporate trustee marketplace. It acts as a neutral administrator between borrowers, lenders and investors on large corporate debt deals. Founder Mia Drennan used the £6,000 proceeds from selling her first business to launch GLAS. The company now holds $920bn in assets under administration, and when Oakley Capital acquired a majority stake in 2026, the deal valued GLAS north of £1bn.
- Industry
- Financial services
- Founded
- 2011
- HQ
- City of London
40=Malcolm HealeyWren Kitchens£1 billion
Malcolm Healey founded Wren Kitchens in 2009 and has since grown it into a UK heavyweight with over 100 showrooms and around 7,500 employees, all while retaining full ownership. The business posted its second-highest sales figures ever in 2025, helped by an expansion into bedroom retail. With a career spanning four decades, Healey and his family are estimated to be worth around £1.5bn, cementing his status as one of the UK's wealthiest entrepreneurs.
- Industry
- Retail
- Founded
- 2009
- HQ
- Barton-upon-Humber, Lincolnshire
40=James Basden and Steven MeersmanZenobē£1 billion
Zenobē is a London-based energy company, founded in 2017. It is a leading owner of battery storage in the UK and works with around 90% of the UK's major bus companies, now powering a quarter of the UK electric bus market. Backed by KKR and Infracapital, Zenobē has raised over £3.2bn in debt and equity and operates across the UK, Europe, North America and Australasia.
- Industry
- Energy & utilities
- Founded
- 2017
- HQ
- Charing Cross, London