This selection of publicly traded companies in the United Kingdom includes large, established groups across diverse sectors. Key players include Shell, a global energy company, HSBC, a financial services organization, Unilever, known for its consumer brands, and Vodafone, a telecommunications provider. Other notable firms are GSK, a pharmaceutical manufacturer, and Tesco, a global retailer.
The data shows a concentration of headquarters in London, indicating its role as a major business hub. The companies represent a mix of industries, with strong representation in financial services, retail, oil and gas, and telecommunications, reflecting the broad economic landscape of the UK.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 | 208,511 | ||||
| 2 | 197,879 | ||||
| 3 |
Unileverunilever.com
Global purpose-led business, creating well-loved brands that improve lives worldwide Encourages innovation, fosters growth, and believes in business as a force for good |
145,051 | |||
| 4 |
Vodafonevodafone.com
Using technology to connect people globally, drive social change, and improve lives while emphasizing the importance of humanity and collaboration |
142,740 | |||
| 5 |
FUJITSUglobal.fujitsu
Leading global information and communication technology company, offering technology products, solutions, and services, connecting people, technology, and ideas for a sustainable world. |
124,000 | |||
| 6 | 93,574 | ||||
| 7 | 92,092 | ||||
| 8 |
Tescotescoplc.com
Global retailer offering food and fashion through physical stores and online platforms, employing hundreds of thousands across offices, distribution and engagement centers. |
91,023 | |||
| 9 | 85,000 | ||||
| 10 |
Barclayshome.barclays
A British universal bank with global presence, offering consumer banking, payments, corporate and investment banking services, supported by technology and operational solutions |
82,417 | |||
| 11 |
Kingfisher plckingfisher.com
International home improvement company with 1,900 stores across Europe Offering products and services for consumers and trade professionals to create better homes |
80,000 | |||
| 12 |
AstraZenecaastrazeneca.com
Pioneering healthcare transformation through the potential of science, impacting individuals, society, and the environment for a healthier future |
79,513 | |||
| 13 |
Standard Charteredsc.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 |
79,401 | |||
| 14 | 73,712 | ||||
| 15 |
Sainsbury'ssainsburys.jobs
A leading UK retailer with over 1400 stores and a strong digital presence, offering affordable, greener products and convenient financial services to customers |
68,549 | |||
| 16 | 66,000 | ||||
| 17 |
Compass Groupcompass-group.com
Provides contract food and support services globally, aiming for world-class standards through great people, service, and results, generating significant revenue. |
61,555 | |||
| 18 |
Lloyds Banking Grouplloydsbankinggroup.com
This company focuses on creating a more sustainable and inclusive future in the financial services industry, while supporting customers' changing needs |
57,702 | |||
| 19 | 55,656 | ||||
| 20 |
BAE Systemsbaesystems.com
The company provides advanced technology-led defense, aerospace, and security solutions, with a skilled workforce in over 40 countries, focusing on innovation and long-term commitment |
55,143 | |||
| 21 |
FCA Fiat Chrysler Automobilesstellantis.com
A leading automaker and mobility provider now known as Stellantis, dedicated to creating innovative transportation solutions for the future |
47,673 | |||
| 22 | 46,311 | ||||
| 23 |
NatWest Groupnatwestgroup.com
Support UK businesses by removing barriers, promoting learning, enhancing financial confidence, and championing climate solutions for sustainable community growth. |
43,833 | |||
| 24 |
Reckittreckitt.com
Focus on providing high-quality hygiene, wellness, and nourishment products, aiming for global access and sustainable growth for healthier communities. |
43,000 | |||
| 25 |
Marks and Spencerjobs.marksandspencer.com
Global retailer delivering quality products through physical and digital channels while prioritizing innovation and value for millions of customers across the world. |
40,055 | |||
| 26 | 37,600 | ||||
| 27 | 36,000 | ||||
| 28 |
JD Sports Fashioncareers.jdplc.com
A global retailer and distributor of branded sportswear and fashionwear, with stores across Europe, North America, and Asia Pacific |
34,337 | |||
| 29 |
Diageodiageo.com
Global leader in premium drinks, with over 200 brands sold in 180 countries Committed to sustainability, innovation, and excellence worldwide |
34,137 | |||
| 30 | 32,618 | ||||
| 31 |
Hayshaysplc.com
Specialist recruitment and workforce solutions provider offering advisory services, career transitions, and employer brand positioning, with a focus on empowering people and businesses to succeed globally |
31,854 | |||
| 32 |
Rolls-Roycerolls-royce.com
Engineering excellence driving critical technologies for air, sea, and land, powering, protecting, and connecting people worldwide. |
31,649 | |||
| 33 |
Imperial Brands PLCimperialbrandsplc.com
An innovative global FMCG business with inclusive culture, focused on tobacco harm reduction, sustainability, and strong international brands |
29,000 | |||
| 34 |
Coca-Cola Europacific Partnerscocacolaep.com
This multinational company produces, distributes, and sells popular drink brands in Europe, Australia, Indonesia, and the Pacific region |
27,236 | |||
| 35 |
Anglo Americanangloamerican.com
Global mining company producing essential metals and minerals with a focus on sustainability, innovation, and community value creation. |
26,768 | |||
| 36 |
Nextcareers.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. |
26,161 | |||
| 37 |
TechnipFMCtechnipfmc.com
A leading technology provider in the energy industry, offering integrated projects and services to develop energy resources while prioritizing sustainability |
25,875 | |||
| 38 |
Capitacapita.com
A leading provider of business services using data, technology, and people to simplify connections between governments, citizens, businesses, and customers |
25,581 | |||
| 39 | 25,298 | ||||
| 40 |
Balfour Beatty plcbalfourbeatty.com
A global infrastructure group with 25,000 employees delivering innovative and efficient transportation, power, building, and utility systems for economic growth and community support |
25,000 | |||
| 41 |
Computacentercomputacenter.com
A leading technology and services provider, trusted by large organizations, helping customers manage and transform their technology infrastructure for digital transformation |
20,070 | |||
| 42 |
IHG Hotels & Resortsihgplc.com
Management of twenty-one diverse hotel brands across luxury, premium, and essential categories, operating thousands of properties and a major global loyalty program. |
19,288 | |||
| 43 |
Smith+Nephewsmith-nephew.com
Design and manufacture medical technologies supporting healthcare professionals to restore patient health and mobility, enhancing performance and quality of life. |
19,222 | |||
| 44 |
Entainentaingroup.com
A global sports betting and gaming entertainment group with over 25 brands, focused on revolutionizing the industry and promoting diversity |
18,906 | |||
| 45 |
Haleonhaleon.com
The company is focused on improving everyday health through a human-centered approach They promote community guidelines for social media interactions #HelloHaleon |
18,581 | |||
| 46 |
RBSnatwestgroup.com
Announcement of rebranding from RBS to NatWest Group, encouraging followers to transition to the new company page for updates. |
18,457 | |||
| 47 |
Centricacentrica.com
A leading energy services provider with a focus on sustainability, offering zero carbon electricity to millions of customers through various brands |
18,164 | |||
| 48 |
Frasers Groupfrasers.group
Operate multiple iconic retail brands across various sectors, innovating and expanding to create future-proof shopping experiences worldwide. |
16,785 | |||
| 49 |
Babcock International Groupbabcockinternational.com
An international defence company providing product and service solutions to enhance customers' capabilities and assets, offering opportunities for professionals to grow |
16,474 | |||
| 50 | 15,616 | ||||
Want more companies than this list?This page shows the largest ones only. Connect to Tamtam to see every company that matches, filter by size, industry or growth, and reach their decision-makers. | |||||
| 51 |
Whitbreadwhitbreadcareers.com
A hospitality company owning popular hotel and restaurant brands, employing over 35,000 people and focused on sustainability and community impact |
14,047 | |||
| 52 |
easyJeteasyjet.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 |
13,948 | |||
| 53 |
Savillssavills.com
Global real estate advisory firm providing tailored solutions and expert advice for residential and commercial property clients worldwide. |
13,891 | |||
| 54 |
Pearsonpearson.com
A global leader in learning, offering digital content, assessments, qualifications, and data to create vibrant and enriching learning experiences worldwide |
13,596 | |||
| 55 |
Greggsgreggs.com
Leading food-on-the-go retailer with over 2,400 shops, offering freshly prepared, affordable, great tasting food to millions weekly. |
13,592 | |||
| 56 |
Greencoregreencore.com
Leading UK convenience food manufacturer supplying supermarkets, retailers, and foodservice with a wide range of products Emphasizes quality, sustainability, and innovation |
13,000 | |||
| 57 | 12,865 | ||||
| 58 |
Bank of Communications Co., Ltd. London Branchbankcomm.com.hk
Provides commercial banking, securities, trust services, financial leasing, fund management, and insurance through a vast network of domestic branches and international overseas institutions. |
12,670 | |||
| 59 |
Rentokil Initialrentokil-initial.com
Global provider of pest control, hygiene, and well-being services protecting people and enhancing lives for commercial and private customers. |
12,515 | |||
| 60 |
B&M Retailcareers.bmstores.co.uk
A fast-growing discount retailer operating over 700 stores in the UK, offering a wide range of products at low prices for a fun shopping experience |
11,996 | |||
| 61 | 11,769 | ||||
| 62 |
Clarivateclarivate.com
A global information services provider connecting people and organizations to trusted intelligence in Academia & Government, Life Sciences & Healthcare, and Intellectual Property |
11,385 | |||
| 63 |
Admiral Group Plcadmiralgroup.co.uk
Leading car insurance provider in the UK and 7 other countries, focusing on innovation, customer service, and employee satisfaction. |
11,047 | |||
| 64 |
The Weir Group PLCglobal.weir
Global leader providing innovative, efficient, and sustainable mining technology solutions combining engineering, materials science, and intelligent automation expertise. |
10,199 | |||
| 65 |
Barclays UKsearch.jobs.barclays
A company focused on helping individuals progress in their lives through financial services, digital innovation, career guidance, and customer-centric approach |
9,925 | |||
| 66 |
Smiths Group plcsmiths.com
A global pioneer in engineering for over 170 years, improving the world by serving millions and creating a safer, more efficient, and better-connected world |
9,866 | |||
| 67 |
Atkinsatkinsrealis.com
World-class engineering services and nuclear organization connecting people, data, and technology to transform global infrastructure and energy systems through design and management. |
9,798 | |||
| 68 |
Investecinvestec.com
Provides global banking and asset management services, creating and managing wealth through specialized financial solutions and insights for diverse international clients. |
9,732 | |||
| 69 |
Endavaendava.com
The company leverages technology and expertise to drive innovation and transform businesses with customized digital solutions across industries |
9,559 | |||
| 70 |
Informainforma.com
Leading international business in events, digital services, and academic knowledge, connecting specialists worldwide to learn, know, and do more in their fields |
9,410 | |||
| 71 |
Jet2.com and Jet2holidaysjet2careers.com
A leisure flight and package holiday operator with over 40 years of success, offering great value and service across Europe |
8,917 | |||
| 72 |
ITVitvplc.com
A leading UK media company shaping culture, known for famous productions and digital innovation, fostering a culture of inclusivity and growth |
8,903 | |||
| 73 |
Burberryburberrycareers.com
Innovative global luxury brand with British heritage, known for iconic trench coats and commitment to sustainability, diversity, and inclusion |
8,769 | |||
| 74 |
Johnson Mattheymatthey.com
development of sustainable technologies supporting energy, chemicals, and automotive sectors to decarbonise, reduce emissions, and enhance sustainability |
8,592 | |||
| 75 |
RSrs-online.com
Global distributor offering over 500,000 engineering products, supporting engineers with tools, components, and a collaborative innovation community. |
8,475 | |||
| 76 |
Currys plccurrysplc.com
Retail technology products with delivery, installation, repair, recycling services, supporting customers and colleagues with flexible work and wellbeing programs. |
8,423 | |||
| 77 |
SThreesthree.com
Connecting skilled STEM professionals with organizations to drive innovation and solve complex challenges through specialist brands and tailored workforce solutions. |
7,927 | |||
| 78 |
Legal & Generallegalandgeneral.com
Provides financial services through asset management, pension risk transfers, and retail savings while investing capital responsibly to deliver long-term shareholder returns. |
7,832 | |||
| 79 |
Morgan Sindall Group plcmorgansindall.com
Specializes in construction, partnerships, fit out, infrastructure, and property services across public, regulated, and private sectors with six divisions. |
7,807 | |||
| 80 |
Pentairpentair.com
This company provides sustainable water solutions for residential, business, and industrial use globally, focusing on improving lives and the environment |
7,711 | |||
| 81 |
IMIimiplc.com
A global engineering company specializing in creating innovative solutions for fluid and motion control applications across various industries, focusing on collaboration and sustainability |
7,637 | |||
| 82 |
TP ICAPtpicap.com
Specialist in connecting clients to liquidity and data solutions across financial and commodities markets with advanced technology and global presence. |
7,548 | |||
| 83 |
Howdenshowdenjoinerygroupplc.com
The company is the UK's top kitchen supplier, offering products for kitchens, joinery, hardware, and bathrooms through over 800 depots |
7,130 | |||
| 84 |
NatWestnatwest.com
Provides comprehensive banking services to personal, small business, and SME customers, supports the UK economy through lending to businesses, and fosters entrepreneurship. |
7,041 | |||
| 85 |
Severn Trentseverntrent.com
Provision of clean water and safe wastewater removal for homes, schools, businesses, and hospitals, focusing on community care and quality service. |
7,000 | |||
| 86 |
Convatecconvatecgroup.com
Delivering pioneering and trusted medical solutions focused on improving the lives of patients and healthcare providers worldwide. |
6,954 | |||
| 87 |
Sports Directfrasers.group
A leading sports retailer with a diversified portfolio of brands, focusing on elevating retail offerings through investments in people and brand partnerships |
6,921 | |||
| 88 |
Mobico Group PLCmobicogroup.com
A leading international transport provider operating in 11 countries, promoting safe, affordable, and reliable public transport for the benefit of the planet |
6,835 | |||
| 89 |
SABMillerab-inbev.com
Global brewing company formed by AB InBev and SABMiller merger, producing and distributing beer and beverages worldwide. |
6,716 | |||
| 90 |
Spire Healthcare Group plcspirehealthcare.com
Leading provider of private healthcare services operating 38 hospitals and over 50 clinics, consulting rooms, and medical centres in the UK. |
6,621 | |||
| 91 |
Boohoo Group PLCboohoogroup.com
Leader in online fashion retail with 13 brands, global presence, and a team of 6,000+, offering endless opportunities for growth and evolution |
6,523 | |||
| 92 |
Soho House & Cosohohouse.com
Private members' clubs for creative industries featuring houses, restaurants, cinemas, spas, and workspaces across Europe and North America for networking and social growth. |
6,509 | |||
| 93 |
Mastekmastek.com
Enterprise digital and cloud transformation partner delivering solutions in digital experience, cloud, data, automation, AI, and managed services globally. |
6,396 | |||
| 94 |
Halfordshalfords.com
The company provides expert motoring and cycling products, services, and repairs, with over 12,000 employees across 393 stores in the UK and Republic of Ireland |
6,148 | |||
| 95 |
KELLERkeller.com
A global geotechnical specialist contractor that solves construction challenges with local focus, expertise, and a track record of successful projects |
5,930 | |||
| 96 |
WHSmithwhsmithcareers.co.uk
A global travel retailer with high street presence, offering travel essentials, books, stationery, tech accessories, online shopping, and supporting customers' journeys through life |
5,729 | |||
| 97 |
Ocado Groupocadogroup.com
Global technology company specializing in online grocery and logistics platforms, enabling partners to excel in ecommerce fulfillment and automation across various industries. |
5,698 | |||
| 98 |
Aberdeenaberdeenplc.com
Providing wealth and investment services focused on helping clients plan, manage portfolios, and navigate financial futures with insight. |
5,527 | |||
| 99 |
QinetiQqinetiq.com
Integrated global defence and security company focused on mission-led innovation, testing technologies, and enabling customers to deploy enhanced capabilities for protecting lives. |
5,512 | |||
| 100 |
Pets at Homepetsathome.com
Leading UK petcare retailer with stores, grooming salons, veterinary practices, and dedicated colleagues focused on animal welfare and customer service. |
5,381 | |||
Turn this list into pipeline
Tamtam finds the decision-makers at every company on a list like this one, with verified emails, phone numbers and the buying signals that tell you when to reach out.
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 15, 2026.
More company lists in the United Kingdom
- The largest companies in the United Kingdom 36,548
- Multinational companies in the United Kingdom 7,458
- Financial services firms in the United Kingdom 3,711
- Financial Services companies in the United Kingdom 3,696
- Retail chains in the United Kingdom 3,289
- Professional services firms in the United Kingdom 2,706
- Software Development companies in the United Kingdom 2,600
- Manufacturers in the United Kingdom 2,159
- Companies with in-house R&D in the United Kingdom 1,930
- IT Services and IT Consulting companies in the United Kingdom 1,722
- Retail companies in the United Kingdom 1,596
- IT services companies in the United Kingdom 1,583
- Hotel and hospitality groups in the United Kingdom 1,461
- Companies with a mobile app in the United Kingdom 1,411
- Consulting firms in the United Kingdom 1,298
- E-commerce companies in the United Kingdom 1,246
- Hardware manufacturers in the United Kingdom 1,239
- Family-owned companies in the United Kingdom 1,224
- Hospitality companies in the United Kingdom 1,204
- Critical infrastructure operators in the United Kingdom 1,195
- Wellness and Fitness Services companies in the United Kingdom 1,151
- Retail Apparel and Fashion companies in the United Kingdom 1,085
- Subscription businesses in the United Kingdom 1,077
- Distributors and wholesalers in the United Kingdom 1,061