# List of companies with a mobile app in the United Kingdom
Tamtam tracks 1,411 companies with a mobile app headquartered in the United Kingdom. This list ranks the 100 largest by number of employees on LinkedIn, led by NHS, UK Civil Service and Vodafone. Their median headcount is 8,769. Half of them were founded in 1982 or later. The most common headquarters are London (54), Glasgow (2) and Leeds (2).
These United Kingdom companies with a mobile app are predominantly large organizations, many of which are well-established. Industries such as Retail, Telecommunications, and Financial Services are well-represented. Notable companies include Vodafone, which connects people globally, and Tesco, a global retailer offering food and fashion. Also present are NHS, providing comprehensive healthcare services, and BT Group, a global communications services company.
A clear pattern among these companies is the concentration of headquarters in London, with a few exceptions like Welwyn Garden City for Tesco and Leeds for Asda. This suggests a central hub for major business operations within the UK.
π¬π§ United Kingdom Β· 100 companies Β· Updated Nov 12, 2026
| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [NHS](https://www.tamtam.ai/c/nhs) (www.nhs.uk)
It provides comprehensive healthcare services to UK residents, employing over 1.5 million staff and ensuring free access at the point of use. | Food and Beverage Services | π¬π§ | 252,871 | 1948 |
| 2 | [UK Civil Service](https://www.tamtam.ai/c/uk-civil-service) (gov.uk)
This company implements government policies, delivering essential public services in the UK | Government Administration | π¬π§ London | 238,504 | |
| 3 | [Vodafone](https://www.tamtam.ai/c/vodafone) (vodafone.com)
Using technology to connect people globally, drive social change, and improve lives while emphasizing the importance of humanity and collaboration | Telecommunications | π¬π§ London | 142,740 | 1982 |
| 4 | [ANY Company](https://www.tamtam.ai/c/any-company) (any.company)
Connect, promote, and find partners with a focus on building stronger connections and faster growth in the global marketplace Tailored solutions for businesses | IT Services and IT Consulting | π¬π§ London | 93,110 | 2018 |
| 5 | [Tesco](https://www.tamtam.ai/c/tesco) (tescoplc.com)
Global retailer offering food and fashion through physical stores and online platforms, employing hundreds of thousands across offices, distribution and engagement centers. | Retail | π¬π§ Welwyn Garden City | 91,023 | |
| 6 | [bp](https://www.tamtam.ai/c/bp) (bp.com)
Investing in a balanced energy system by transitioning from oil and gas to lower-carbon energy, convenience stores, and power trading | Oil and Gas | π¬π§ London | 85,000 | 1909 |
| 7 | [Kingfisher plc](https://www.tamtam.ai/c/kingfisher-plc) (kingfisher.com)
International home improvement company with 1,900 stores across Europe Offering products and services for consumers and trade professionals to create better homes | Retail | π¬π§ London | 80,000 | |
| 8 | [Standard Chartered](https://www.tamtam.ai/c/standard-chartered) (sc.com)
An international banking group with a presence in 53 markets, driving commerce and prosperity through diversity and values Listed on London and Hong Kong Stock Exchanges | Banking | π¬π§ London | 79,401 | |
| 9 | [BT Group](https://www.tamtam.ai/c/bt-group) (bt.com)
A global communications services company connecting people through technology to address challenges like the pandemic, climate change, and cyber security | Telecommunications | π¬π§ London | 73,712 | |
| 10 | [Sainsbury's](https://www.tamtam.ai/c/sainsbury-s) (sainsburys.jobs)
A leading UK retailer with over 1400 stores and a strong digital presence, offering affordable, greener products and convenient financial services to customers | Retail | π¬π§ London | 68,549 | 1869 |
| 11 | [Lloyds Banking Group](https://www.tamtam.ai/c/lloyds-banking-group) (lloydsbankinggroup.com)
This company focuses on creating a more sustainable and inclusive future in the financial services industry, while supporting customers' changing needs | Financial Services | π¬π§ London | 57,702 | |
| 12 | [Asda](https://www.tamtam.ai/c/asda) (asda.jobs)
Large retail business providing diverse career opportunities across shop floors, doorsteps, and technology sectors to improve customer experiences through store and online innovations. | Retail | π¬π§ Leeds | 52,216 | |
| 13 | [FCA Fiat Chrysler Automobiles](https://www.tamtam.ai/c/fca-fiat-chrysler-automobiles) (stellantis.com)
A leading automaker and mobility provider now known as Stellantis, dedicated to creating innovative transportation solutions for the future | Motor Vehicle Manufacturing | π¬π§ London | 47,673 | |
| 14 | [NatWest Group](https://www.tamtam.ai/c/natwest-group) (natwestgroup.com)
Support UK businesses by removing barriers, promoting learning, enhancing financial confidence, and championing climate solutions for sustainable community growth. | Banking | π¬π§ Edinburgh | 43,833 | |
| 15 | [BBC](https://www.tamtam.ai/c/bbc) (bbc.co.uk)
Leading public service broadcaster, creates impartial, independent, distinctive, world-class programmes and content; informs, educates, entertains millions globally. | Broadcast Media Production and Distribution | π¬π§ London | 42,697 | 1922 |
| 16 | [Royal Mail](https://www.tamtam.ai/c/royal-mail) (linktr.ee)
Connecting businesses, customers, and communities in the UK by providing universal postal service to over 29 million addresses, aiming to be the best delivery company in Europe | Freight and Package Transportation | π¬π§ London | 39,215 | |
| 17 | [John Lewis Partnership](https://www.tamtam.ai/c/john-lewis-partnership) (jlpjobs.com)
Employee-owned business operating department stores and supermarkets focused on quality service, retail innovation, and shared responsibility among partners for collective success and growth. | Retail | π¬π§ London | 36,517 | |
| 18 | [Sky](https://www.tamtam.ai/c/sky) (sky.com)
A leading media and entertainment company offering innovative TV, streaming services, connectivity solutions, premium content production, and societal impact initiatives | Broadcast Media Production and Distribution | π¬π§ Middlesex | 35,346 | 1989 |
| 19 | [JD Sports Fashion](https://www.tamtam.ai/c/jd-sports-fashion) (careers.jdplc.com)
A global retailer and distributor of branded sportswear and fashionwear, with stores across Europe, North America, and Asia Pacific | Retail | π¬π§ Bury | 34,337 | |
| 20 | [Boots UK](https://www.tamtam.ai/c/boots-uk) (boots.jobs)
Leading UK pharmacy-led retailer offering health, beauty products & care services through retail stores, digital platforms, and exclusive brands for over 170 years | Retail | π¬π§ Nottingham | 27,869 | 1849 |
| 21 | [HM Revenue & Customs](https://www.tamtam.ai/c/hm-revenue-and-customs) (gov.uk)
UK's tax, payments, and customs authority, collecting funds for public services, providing financial support, ensuring tax compliance, and combating fraudulent activities | Government Administration | π¬π§ London | 26,882 | 2005 |
| 22 | [Next](https://www.tamtam.ai/c/next-leicester) (careers.next.co.uk)
Leading British retailer specializing in furniture production and technology development while fostering an innovative environment for warehouse teams and software engineering experts. | Retail | π¬π§ Leicester | 26,161 | 1982 |
| 23 | [Co-op](https://www.tamtam.ai/c/co-op) (coop.co.uk)
A large consumer co-operative in the UK, offering a variety of services including food retail, funeral services, insurance, and legal services | Retail | π¬π§ Manchester | 21,184 | |
| 24 | [Santander UK](https://www.tamtam.ai/c/santander-uk) (santander.co.uk)
Providing personal and commercial financial products and services to millions of customers, fostering diversity and a positive workplace culture. | Banking | π¬π§ London | 21,000 | |
| 25 | [IHG Hotels & Resorts](https://www.tamtam.ai/c/ihg-hotels-and-resorts) (ihgplc.com)
Management of twenty-one diverse hotel brands across luxury, premium, and essential categories, operating thousands of properties and a major global loyalty program. | Hospitality | π¬π§ Windsor | 19,288 | 2003 |
| 26 | [Entain](https://www.tamtam.ai/c/entain) (entaingroup.com)
A global sports betting and gaming entertainment group with over 25 brands, focused on revolutionizing the industry and promoting diversity | Entertainment Providers | π¬π§ London | 18,906 | |
| 27 | [Costa Coffee](https://www.tamtam.ai/c/costa-coffee) (costa.co.uk)
Global coffee brand offering stores, ready-to-drink products, self-serve machines, and home options, focusing on community and growth. | Retail | π¬π§ London | 18,739 | 1971 |
| 28 | [Transport for London](https://www.tamtam.ai/c/transport-for-london) (tfl.gov.uk)
London-based transportation company leading in providing diverse travel options, focusing on customer feedback, technology innovation, and large-scale investments for city-wide mobility improvements | Non-profit Organizations | π¬π§ London | 18,658 | 2000 |
| 29 | [Waitrose & Partners](https://www.tamtam.ai/c/waitrose-and-partners) (jlpjobs.com)
A unique business that focuses on creating happier and more trusted ways of operating, with a shared purpose to make a positive impact on society | Retail | π¬π§ Bracknell | 18,555 | 1904 |
| 30 | [Revolut](https://www.tamtam.ai/c/revolut) (revolut.com)
A fintech company on a mission to provide customers with more visibility, control, and freedom over their money through innovative products | Financial Services | π¬π§ London | 18,462 | 2015 |
| 31 | [National Grid](https://www.tamtam.ai/c/national-grid) (nationalgrid.com)
Operate and develop electricity transmission and distribution networks, natural gas systems, and invest in clean energy infrastructure and technology ventures. | Utilities | π¬π§ London | 17,432 | |
| 32 | [Jumeirah](https://www.tamtam.ai/c/jumeirah) (jumeirah.com)
Operates luxury hotels, resorts, and residences across the Middle East, Europe, Asia, and Africa, offering distinguished service and creating joyful guest experiences. | Hospitality | π¬π§ Dubai | 14,775 | 1999 |
| 33 | [Lidl GB](https://www.tamtam.ai/c/lidl-gb) (careers.lidl.co.uk)
Retail grocery stores across the UK offering high-quality products at low prices, supported by extensive distribution and dedicated staff. | Retail | π¬π§ London | 14,526 | 1994 |
| 34 | [Nationwide Building Society](https://www.tamtam.ai/c/nationwide-building-society) (nationwide.co.uk)
Providing reliable and customer-focused banking services, offering financial products and support to meet everyday banking needs effectively. | Financial Services | π¬π§ Swindon | 14,486 | 1846 |
| 35 | [B&Q](https://www.tamtam.ai/c/b-and-q) (bandqcareers.com)
Leading UK retailer offering home improvement and garden products with extensive store network, online marketplace, and community sustainability initiatives. | Retail | π¬π§ Southampton | 14,027 | |
| 36 | [easyJet](https://www.tamtam.ai/c/easyjet) (easyjet.com)
Mission-driven to make low-cost travel accessible with Europe's best airline network, value fares, and personalized service, fostering a supportive, opportunity-driven culture | Airlines and Aviation | π¬π§ London Luton Airport | 13,948 | 1995 |
| 37 | [Greggs](https://www.tamtam.ai/c/greggs) (greggs.com)
Leading food-on-the-go retailer with over 2,400 shops, offering freshly prepared, affordable, great tasting food to millions weekly. | Food and Beverage Services | π¬π§ | 13,592 | 1939 |
| 38 | [Greene King](https://www.tamtam.ai/c/greene-king) (greeneking.co.uk)
A leading pub and brewing company with a heritage dating back to 1799, offering award-winning ales and operating over 2,600 pubs, restaurants, and hotels across the UK | Food and Beverage Services | π¬π§ Bury St Edmunds | 12,900 | |
| 39 | [John Lewis & Partners](https://www.tamtam.ai/c/john-lewis-and-partners) (jlpjobs.com)
Aiming to create a happier and more trusted way of doing business, this company emphasizes partnership to make a difference | Retail | π¬π§ London | 12,437 | 1864 |
| 40 | [EE](https://www.tamtam.ai/c/ee) (ee.co.uk)
A leading mobile communications company in the UK, offering mobile and fixed services with the largest and fastest network coverage | Telecommunications | π¬π§ London | 12,146 | 2012 |
| 41 | [Evri](https://www.tamtam.ai/c/evri) (evri.com)
Delivers over 1 billion parcels and letters annually. Connects retailers, businesses, and consumers across the UK and internationally. Mission to be convenient and sustainable. | Transportation, Logistics, Supply Chain and Storage | π¬π§ Morley | 11,944 | 1974 |
| 42 | [Wise](https://www.tamtam.ai/c/wise-london) (wise.com)
Platform enabling individuals and businesses to hold multiple currencies, transfer money internationally, and spend abroad with low fees. | Financial Services | π¬π§ London | 11,769 | 2011 |
| 43 | [Guy's and St Thomas'β NHS Foundation Trust](https://www.tamtam.ai/c/guy-s-and-st-thomas-nhs-foundation-trust) (guysandstthomas.nhs.uk)
Provides high-quality healthcare services, clinical excellence, research, and community care through multiple hospitals and partnerships in London. | Hospitals and Health Care | π¬π§ London | 11,655 | |
| 44 | [Deliveroo](https://www.tamtam.ai/c/deliveroo) (deliveroo.co.uk)
A global food delivery service working with thousands of restaurants and riders to offer top-notch delivery experiences in multiple countries | Software Development | π¬π§ London | 10,910 | 2013 |
| 45 | [Barclays UK](https://www.tamtam.ai/c/barclays-uk) (search.jobs.barclays)
A company focused on helping individuals progress in their lives through financial services, digital innovation, career guidance, and customer-centric approach | Banking | π¬π§ London | 9,925 | 1690 |
| 46 | [Google DeepMind](https://www.tamtam.ai/c/google-deepmind) (deepmind.google)
Advances artificial intelligence with breakthrough research. Solves complex problems like disease diagnosis, energy saving, and protein folding with safe, ethical AI. | Research Services | π¬π§ London | 9,665 | 2010 |
| 47 | [BBC News](https://www.tamtam.ai/c/bbc-news) (bbc.com)
Global provider of trusted, accurate, and impartial news through TV, radio, online, and social media with extensive journalist network. | Broadcast Media Production and Distribution | π¬π§ London | 9,410 | 1922 |
| 48 | [Financial Times](https://www.tamtam.ai/c/financial-times) (ft.com)
provides authoritative, accurate business news and information with a large digital subscription base, serving the global business community. | Newspaper Publishing | π¬π§ London | 9,092 | |
| 49 | [ITV](https://www.tamtam.ai/c/itv) (itvplc.com)
A leading UK media company shaping culture, known for famous productions and digital innovation, fostering a culture of inclusivity and growth | Broadcast Media Production and Distribution | π¬π§ London | 8,903 | |
| 50 | [Burberry](https://www.tamtam.ai/c/burberry) (burberrycareers.com)
Innovative global luxury brand with British heritage, known for iconic trench coats and commitment to sustainability, diversity, and inclusion | Retail Luxury Goods and Jewelry | π¬π§ London | 8,769 | 1856 |
| 51 | [Holiday Inn](https://www.tamtam.ai/c/holiday-inn-denham) (ihg.com)
A global hospitality company providing True Hospitality with a large hotel loyalty program, offering nearly 1,200 hotels worldwide and ongoing expansion plans | Hospitality | π¬π§ Denham | 8,755 | |
| 52 | [Superdrug](https://www.tamtam.ai/c/superdrug) (superdrug.com)
A leading beauty and health retailer offering a wide range of products, own brands, healthcare services, and beauty studios both online and in-store | Retail | π¬π§ Croydon | 8,644 | |
| 53 | [ACCA](https://www.tamtam.ai/c/acca) (accaglobal.com)
A global body for professional accountants, providing qualifications and support while promoting ethics, governance, and public interest in the profession | Accounting | π¬π§ London | 8,556 | 1904 |
| 54 | [Currys plc](https://www.tamtam.ai/c/currys-plc) (currysplc.com)
Retail technology products with delivery, installation, repair, recycling services, supporting customers and colleagues with flexible work and wellbeing programs. | Retail | π¬π§ | 8,423 | |
| 55 | [New Look](https://www.tamtam.ai/c/new-look-london) (newlookgroup.com)
A global, multichannel fashion brand offering on-trend, value-fashion for women, men, and teenage girls since 1969, focusing on affordability and customer satisfaction | Retail | π¬π§ London | 8,420 | 1969 |
| 56 | [Virgin Media O2](https://www.tamtam.ai/c/virgin-media-o2) (virginmediao2.co.uk)
Provides fastest broadband and largest mobile network in the UK, focusing on customer-first connectivity services and network upgrades. | Telecommunications | π¬π§ London | 8,272 | 2021 |
| 57 | [Virgin Atlantic](https://www.tamtam.ai/c/virgin-atlantic) (virginatlantic.com)
Operate transatlantic flights connecting major global cities, focus on customer experience, sustainability, inclusivity, and innovative travel solutions. | Airlines and Aviation | π¬π§ Crawley | 7,756 | 1984 |
| 58 | [Virgin Active](https://www.tamtam.ai/c/virgin-active) (virginactive.co.uk)
Operates large health clubs offering diverse fitness products and services, inspiring active lifestyles with personalized gym and boutique experiences. | Wellness and Fitness Services | π¬π§ London | 7,690 | 1999 |
| 59 | [Screwfix](https://www.tamtam.ai/c/screwfix) (screwfix.com)
Multichannel retailer offering over 70,000 home improvement products via online, app, phone, and over 970 stores across the UK, Ireland, and France. | Retail | π¬π§ Yeovil | 7,190 | |
| 60 | [NatWest](https://www.tamtam.ai/c/natwest) (natwest.com)
Provides comprehensive banking services to personal, small business, and SME customers, supports the UK economy through lending to businesses, and fosters entrepreneurship. | Banking | π¬π§ | 7,041 | |
| 61 | [Sports Direct](https://www.tamtam.ai/c/sports-direct) (frasers.group)
A leading sports retailer with a diversified portfolio of brands, focusing on elevating retail offerings through investments in people and brand partnerships | Retail | π¬π§ Shirebrook | 6,921 | 1982 |
| 62 | [David Lloyd Clubs](https://www.tamtam.ai/c/david-lloyd-clubs) (davidlloyd.co.uk)
Largest European health and fitness group operating clubs with gyms, pools, racquet sports, spas, kids facilities, and social spaces for families. | Wellness and Fitness Services | π¬π§ Hatfield | 6,843 | 1982 |
| 63 | [bet365](https://www.tamtam.ai/c/bet365) (bet365careers.com)
A global leader in online gambling, offering sports betting, in-play betting, live streaming, and a range of online casino games | Gambling Facilities and Casinos | π¬π§ Stoke-on-Trent | 6,713 | 2000 |
| 64 | [The Economist](https://www.tamtam.ai/c/the-economist) (economist.com)
Global news and analysis provider helping individuals understand the world; offering subscriptions for in-depth insights and respecting personal data privacy | Newspaper Publishing | π¬π§ London | 6,694 | 1843 |
| 65 | [Boohoo Group PLC](https://www.tamtam.ai/c/boohoo-group-plc) (boohoogroup.com)
Leader in online fashion retail with 13 brands, global presence, and a team of 6,000+, offering endless opportunities for growth and evolution | Retail Apparel and Fashion | π¬π§ Manchester | 6,523 | |
| 66 | [Soho House & Co](https://www.tamtam.ai/c/soho-house-and-co) (sohohouse.com)
Private members' clubs for creative industries featuring houses, restaurants, cinemas, spas, and workspaces across Europe and North America for networking and social growth. | Hospitality | π¬π§ Strand | 6,509 | 1995 |
| 67 | [Global Fashion Group](https://www.tamtam.ai/c/global-fashion-group) (global-fashion-group.com)
Global Fashion Group empowers individuals globally to express their true selves through fashion with seamless ecommerce platforms in LATAM, SEA, and ANZ | Retail Apparel and Fashion | π¬π§ London | 6,390 | 2011 |
| 68 | [Three UK](https://www.tamtam.ai/c/three-uk) (threev1-1481200-gb-engb.sr-attrax.com)
Provides mobile network services, including 3G, 4G, and 5G, covering 99% of the UK outdoor population and sponsoring Chelsea FC. | Telecommunications | π¬π§ Reading | 6,239 | 2003 |
| 69 | [Thomas Cook](https://www.tamtam.ai/c/thomas-cook) (thomascook.com)
A newly revived online travel business under Fosun Tourism Group, focused on providing easy holiday booking solutions with a team of travel and tech experts | Travel Arrangements | π¬π§ London | 6,149 | 1841 |
| 70 | [Formula 1](https://www.tamtam.ai/c/formula-1) (formula1.com)
Delivering Formula 1's global spectacle through technical infrastructure, data analysis, content production, hospitality programs, and innovative marketing to engage fans worldwide | Broadcast Media Production and Distribution | π¬π§ London | 6,081 | |
| 71 | [University of Strathclyde](https://www.tamtam.ai/c/university-of-strathclyde) (strath.ac.uk)
A place dedicated to providing practical and valuable knowledge or education | Higher Education | π¬π§ Glasgow | 6,051 | 1796 |
| 72 | [Lloyds Bank](https://www.tamtam.ai/c/lloyds-bank) (lloydsbank.com)
A UK-based bank focusing on serving the needs of individuals and businesses, prioritizing what truly matters in life Connect with us online | Banking | π¬π§ London | 5,996 | |
| 73 | [Heathrow](https://www.tamtam.ai/c/heathrow) (heathrow.com)
Europe's largest airport connecting over 80 airlines, passengers, businesses, and cargo to more than 200 global destinations. | Airlines and Aviation | π¬π§ Hounslow | 5,968 | 1946 |
| 74 | [FARFETCH](https://www.tamtam.ai/c/farfetch) (farfetch.com)
Global platform for luxury fashion connecting creators, curators, and consumers worldwide offering a unique shopping experience with over 1,300 luxury brands | Retail Luxury Goods and Jewelry | π¬π§ London | 5,800 | 2007 |
| 75 | [Stagecoach Group Limited](https://www.tamtam.ai/c/stagecoach-group-limited) (stagecoachbus.com)
Market leader in providing greener, smarter travel through bus, coach, and tram operations Committed to safety, service, integrity, innovation, and partnership | Interurban and Rural Bus Services | π¬π§ Perth | 5,660 | |
| 76 | [The Football Association](https://www.tamtam.ai/c/the-football-association) (thefa.com)
Overseeing and developing English football at all levels, focusing on premier cup competition, world-class venues, and success with national teams | Spectator Sports | π¬π§ Wembley | 5,522 | 1863 |
| 77 | [Priory](https://www.tamtam.ai/c/priory) (priorygroup.com)
A leading provider of behavioral care in the UK and internationally, offering healthcare, education, and care services for over 30,000 people annually | Hospitals and Health Care | π¬π§ | 5,504 | 1980 |
| 78 | [xAI](https://www.tamtam.ai/c/xai) (x.ai)
Specializing in exploring and comprehending the vast universe, our company strives to delve into the mysteries of the cosmos | Technology, Information and Internet | π¬π§ | 5,501 | |
| 79 | [Octopus Energy](https://www.tamtam.ai/c/octopus-energy) (octopus.energy)
providing affordable, transparent renewable energy solutions with innovative technology and exceptional customer service across multiple countries and sectors | Utilities | π¬π§ London | 5,415 | |
| 80 | [Moniepoint Group](https://www.tamtam.ai/c/moniepoint-group) (moniepoint.com)
A leading fintech company offering digital payment solutions, credit access, and business management tools to help businesses worldwide grow and succeed | Financial Services | π¬π§ London | 5,413 | 2015 |
| 81 | [Manchester United](https://www.tamtam.ai/c/manchester-united) (manutd.com)
Global football club with 146-year heritage, 68 trophies, and a passionate worldwide community generating revenue through sponsorships and merchandising. | Spectator Sports | π¬π§ | 5,391 | 1878 |
| 82 | [Teaching Personnel](https://www.tamtam.ai/c/teaching-personnel) (teachingpersonnel.com)
Specializes in recruiting teachers and classroom support staff for UK schools, providing staffing, tutoring, and supply services. | Staffing and Recruiting | π¬π§ Welwyn Garden City | 5,388 | |
| 83 | [O2 (TelefΓ³nica UK)](https://www.tamtam.ai/c/o2-telefonica-uk) (o2.co.uk)
Leading UK mobile network operator providing 2G to 5G services, retail stores, WiFi, and partnerships with Tesco Mobile and entertainment venues. | Telecommunications | π¬π§ Reading | 5,371 | |
| 84 | [Everyone Active - SLM](https://www.tamtam.ai/c/everyone-active-slm) (everyoneactive.com)
This company specializes in managing local authority leisure contracts, focusing on delivering high-quality services and increasing community participation | Wellness and Fitness Services | π¬π§ Hinckley | 5,340 | 1987 |
| 85 | [St John Ambulance](https://www.tamtam.ai/c/st-john-ambulance) (sja.org.uk)
Provides first aid training and emergency support in communities and workplaces across England, focusing on saving lives during critical moments. | Hospitals and Health Care | π¬π§ London | 5,297 | |
| 86 | [Cambridge University Hospitals NHS Foundation Trust](https://www.tamtam.ai/c/cambridge-university-hospitals-nhs-foundation-trust) (cuh.nhs.uk)
A leading healthcare provider delivering general, specialist, women's, and maternity care, known for biomedical research, academic health science, and innovative healthcare solutions | Hospitals and Health Care | π¬π§ Cambridge | 5,288 | |
| 87 | [Monzo](https://www.tamtam.ai/c/monzo) (monzo.com)
A mobile-first bank focused on solving problems, treating customers fairly, and being transparent to make banking better | Financial Services | π¬π§ London | 5,267 | 2015 |
| 88 | [Flutter UK & Ireland](https://www.tamtam.ai/c/flutter-uk-and-ireland) (careers.flutteruki.com)
A diverse group of brands within the UK & Ireland gambling industry focused on innovation, safety, and individual authenticity for employees | Entertainment Providers | π¬π§ Leeds | 5,215 | |
| 89 | [Warehouse Fashions](https://www.tamtam.ai/c/warehouse-fashions) (warehousefashion.com)
British fashion brand inspired by iconic styles, creating trendy, statement pieces for confident self-expression and modern lifestyles. | Retail Apparel and Fashion | π¬π§ London | 5,159 | |
| 90 | [Arnold Clark](https://www.tamtam.ai/c/arnold-clark) (arnoldclark.com)
Largest UK family-run car retailer with sales, rentals, fleet management, training, auctions, servicing, repairs, EV charging, and insurance services. | Retail Motor Vehicles | π¬π§ Glasgow | 5,153 | 1954 |
| 91 | [Fitness AI](https://www.tamtam.ai/c/fitness-ai) (guden.org)
Fitness AI is a mobile app using artificial intelligence to personalize workout plans, track progress, and motivate users towards achieving health and fitness goals | Wellness and Fitness Services | π¬π§ London | 5,137 | |
| 92 | [Utility Warehouse](https://www.tamtam.ai/c/utility-warehouse) (uw.co.uk)
A growing business focusing on simplifying utilities and providing personalized service to help people spend more time on important things | Utilities | π¬π§ London | 5,083 | 1997 |
| 93 | [Travelodge Hotels Limited](https://www.tamtam.ai/c/travelodge-hotels-limited) (travelodge.co.uk)
A budget hotel brand with nearly 600 locations in the UK, Ireland, and Spain, focused on providing affordable travel and expanding further | Hospitality | π¬π§ Thame | 5,041 | 1985 |
| 94 | [Bourne Leisure Ltd](https://www.tamtam.ai/c/bourne-leisure-ltd) (jobs.haven.com)
A leading holiday and holiday home business with parks, resorts, and hotels across the UK focusing on creating unforgettable memories for guests | Travel Arrangements | π¬π§ Hemel Hempstead | 4,931 | |
| 95 | [Global](https://www.tamtam.ai/c/global) (global.com)
Leading UK media company operating national radio stations, digital platforms, and extensive outdoor advertising networks across major transport and urban locations. | Broadcast Media Production and Distribution | π¬π§ London | 4,926 | 2007 |
| 96 | [British Red Cross](https://www.tamtam.ai/c/british-red-cross) (redcross.org.uk)
Providing neutral, independent, and impartial humanitarian aid to people in crisis, supporting those most in need worldwide. | Civic and Social Organizations | π¬π§ London | 4,882 | 1870 |
| 97 | [Ladbrokes Coral](https://www.tamtam.ai/c/ladbrokes-coral) (entaincareers.com)
A leading betting and gaming company providing exciting and responsible experiences through high street and online presence, with a focus on growth and success | Gambling Facilities and Casinos | π¬π§ London | 4,875 | |
| 98 | [Hermes](https://www.tamtam.ai/c/hermes) (evri.com)
It is the UK's largest dedicated parcel delivery company, recently rebranded as Evri, reflecting significant growth and transformation efforts. | Truck Transportation | π¬π§ | 4,807 | 1974 |
| 99 | [YouGov](https://www.tamtam.ai/c/yougov) (yougov.com)
An international online research and analytics technology group providing unparalleled consumer insights for brands, media owners, and agencies worldwide | Market Research | π¬π§ London | 4,691 | 2000 |
| 100 | [William Hill](https://www.tamtam.ai/c/william-hill) (williamhillgroup.com)
Operating as a leading global sports betting and gaming company, providing a fast-paced environment that prioritizes customer safety and employee development in a culture built on trust. | Entertainment Providers | π¬π§ London | 4,592 | 1934 |
## How this list is built
Every company on this list has a Tamtam company profile. The industry is the one the company gives on LinkedIn; categories such as SaaS or fintech are classified by Tamtam's AI from the company's website and LinkedIn page; and the headquarters city must match the company's own address. Companies are ranked by the number of employees on LinkedIn, and the list is refreshed every night. Classifications can be wrong, so treat the list as a starting point rather than an official ranking. Last updated Nov 12, 2026.
## More company lists in the United Kingdom
- [The largest companies in the United Kingdom](https://www.tamtam.ai/l/largest-companies-united-kingdom) (36,548)
- [Multinational companies in the United Kingdom](https://www.tamtam.ai/l/multinational-companies-united-kingdom) (7,458)
- [Financial services firms in the United Kingdom](https://www.tamtam.ai/l/financial-services-firms-united-kingdom) (3,711)
- [Financial Services companies in the United Kingdom](https://www.tamtam.ai/l/financial-services-companies-united-kingdom) (3,696)
- [Retail chains in the United Kingdom](https://www.tamtam.ai/l/retail-chains-united-kingdom) (3,289)
- [Professional services firms in the United Kingdom](https://www.tamtam.ai/l/professional-services-firms-united-kingdom) (2,706)
- [Software Development companies in the United Kingdom](https://www.tamtam.ai/l/software-development-companies-united-kingdom) (2,600)
- [Manufacturers in the United Kingdom](https://www.tamtam.ai/l/manufacturers-united-kingdom) (2,159)
- [Companies with in-house R&D in the United Kingdom](https://www.tamtam.ai/l/r-and-d-companies-united-kingdom) (1,930)
- [IT Services and IT Consulting companies in the United Kingdom](https://www.tamtam.ai/l/it-services-and-it-consulting-companies-united-kingdom) (1,722)
- [Retail companies in the United Kingdom](https://www.tamtam.ai/l/retail-companies-united-kingdom) (1,596)
- [IT services companies in the United Kingdom](https://www.tamtam.ai/l/it-services-companies-united-kingdom) (1,583)
- [Hotel and hospitality groups in the United Kingdom](https://www.tamtam.ai/l/hospitality-groups-united-kingdom) (1,461)
- [Consulting firms in the United Kingdom](https://www.tamtam.ai/l/consulting-firms-united-kingdom) (1,298)
- [E-commerce companies in the United Kingdom](https://www.tamtam.ai/l/ecommerce-companies-united-kingdom) (1,246)
- [Hardware manufacturers in the United Kingdom](https://www.tamtam.ai/l/hardware-companies-united-kingdom) (1,239)
- [Family-owned companies in the United Kingdom](https://www.tamtam.ai/l/family-owned-companies-united-kingdom) (1,224)
- [Hospitality companies in the United Kingdom](https://www.tamtam.ai/l/hospitality-companies-united-kingdom) (1,204)
- [Critical infrastructure operators in the United Kingdom](https://www.tamtam.ai/l/critical-infrastructure-operators-united-kingdom) (1,195)
- [Wellness and Fitness Services companies in the United Kingdom](https://www.tamtam.ai/l/wellness-and-fitness-services-companies-united-kingdom) (1,151)
- [Retail Apparel and Fashion companies in the United Kingdom](https://www.tamtam.ai/l/retail-apparel-and-fashion-companies-united-kingdom) (1,085)
- [Subscription businesses in the United Kingdom](https://www.tamtam.ai/l/subscription-businesses-united-kingdom) (1,077)
- [Distributors and wholesalers in the United Kingdom](https://www.tamtam.ai/l/distributors-and-wholesalers-united-kingdom) (1,060)
- [Marketing and communications agencies in the United Kingdom](https://www.tamtam.ai/l/marketing-agencies-united-kingdom) (984)
## The same list elsewhere in United Kingdom
- [Companies with a mobile app in Scotland](https://www.tamtam.ai/l/companies-with-mobile-app-scotland) (50)
- [Companies with a mobile app in London](https://www.tamtam.ai/l/companies-with-mobile-app-london) (667)
- [Companies with a mobile app in Manchester](https://www.tamtam.ai/l/companies-with-mobile-app-manchester) (50)
## The same list elsewhere
- [Companies with a mobile app in the world](https://www.tamtam.ai/l/companies-with-mobile-app-in-the-world) (18,922)
- [Companies with a mobile app in Europe](https://www.tamtam.ai/l/companies-with-mobile-app-in-europe) (7,898)
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Source: https://www.tamtam.ai/l/companies-with-mobile-app-united-kingdom