| # | Company | Employees |
|---|---|---|
| 1 | 197,879 | |
| 2 | 93,574 | |
| 3 |
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 |
| 4 |
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 |
| 5 |
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 |
| 6 |
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 |
| 7 | 55,656 | |
| 8 |
John Lewis Partnershipjlpjobs.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. |
36,517 |
| 9 | 36,000 | |
| 10 | 25,298 | |
| 11 |
Santander UKsantander.co.uk
Providing personal and commercial financial products and services to millions of customers, fostering diversity and a positive workplace culture. |
21,000 |
| 12 |
Bupa UKbupa.co.uk
International healthcare company dedicated to helping people live longer, healthier, happier lives by providing quality healthcare services to over 38 million customers worldwide |
20,537 |
| 13 |
Revolutrevolut.com
A fintech company on a mission to provide customers with more visibility, control, and freedom over their money through innovative products |
18,462 |
| 14 |
Post Office Ltdpostoffice.co.uk
operates largest UK retail network with 11,500 branches and a major digital presence, focusing on customer service and innovation |
17,058 |
| 15 |
Howdenhowdengroupholdings.com
Employee-owned insurance group specializing in broking, reinsurance, underwriting, risk consultancy, and employee benefits with global expertise. |
15,000 |
| 16 | 11,769 | |
| 17 |
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 |
| 18 |
Fidelity Internationalfidelityinternational.com
Offers global investment solutions, services, and retirement expertise to diverse clients, managing substantial assets for long-term financial futures. |
9,884 |
| 19 |
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 |
| 20 |
Apex Group Ltd (UK & Ireland)apexgroup.com
A global financial services provider with offices in over 50 countries, offering a wide range of services to asset managers, capital markets, and family offices |
9,281 |
| 21 |
RSAintactinsurance.co.uk
A multinational insurer with a 300-year heritage, operating across Europe with significant businesses in the UK, Ireland, and Luxembourg Employing over 4,500 people |
8,918 |
| 22 |
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 |
| 23 | 6,270 | |
| 24 |
Lloyds Banklloydsbank.com
A UK-based bank focusing on serving the needs of individuals and businesses, prioritizing what truly matters in life Connect with us online |
5,996 |
| 25 |
SS&C GlobeOpssctech.com
Global provider of cloud-based fund services and technology for hedge funds, private equity, and asset managers, offering outsourcing support for operational efficiency and risk reduction |
5,416 |
| 26 | 5,267 | |
| 27 |
Schrodersschroders.com
Manages investments globally for institutions, intermediaries, and individuals, focusing on active management and sustainability to create prosperity and resilient outcomes. |
4,905 |
| 28 | 4,789 | |
| 29 | 4,161 | |
| 30 |
Royal Londonroyallondon.com
A purpose-driven mutual company focused on protecting and investing for the future, promoting inclusivity, diversity, and a positive workplace environment for all |
4,058 |
| 31 | 3,987 | |
| 32 | 3,717 | |
| 33 |
Janus Henderson Investorsjanushenderson.com
The company is dedicated to helping clients achieve financial success by offering differentiated insights, disciplined investments, and world-class service |
3,515 |
| 34 |
Domestic & Generaldomesticandgeneral.com
Protection, repair, and care for household appliances including fridges, washing machines, TVs, and boilers, ensuring reliable home operation. |
3,376 |
| 35 | 3,323 | |
| 36 |
M-KOPAm-kopa.com
Affordable smartphone and e-motorbike financing with embedded digital financial services, leveraging AI-driven credit analytics for emerging market customers. |
3,301 |
| 37 |
Starlingstarlingbank.com
This company is a digital bank offering fast technology, fair service, and honest values, focused on solving customer problems and building sustainable solutions |
3,231 |
| 38 |
Barclaycardhome.barclays
A global payment business offering flexible payment solutions, short-term credit, and innovative contactless and mobile payment schemes to consumers and businesses worldwide |
3,083 |
| 39 |
PIB Grouppibgroup.co.uk
A specialist insurance solutions provider in the UK market and beyond, offering commercial and personal lines products through acquisitions and expertise |
3,023 |
| 40 |
Gallagher Reajg.com
Provides strategic reinsurance brokerage services using data analytics to meet clients' unique risk transfer and capital access needs worldwide. |
2,947 |
| 41 |
Metro Bank (UK)metrobankonline.co.uk
Award-winning, customer-centric bank offering innovative banking services, open longer hours, with a strong focus on community, hiring for attitude, and supporting customers and colleagues |
2,895 |
| 42 |
Howden Insurance Brokers Limitedhowdengroup.com
Leading provider of insurance broking, risk consulting, and employee benefits advice, serving diverse clients globally with specialist teams and employee ownership. |
2,875 |
| 43 |
ICAPtpicap.com
A leading markets operator providing electronic execution and information services for wholesale market participants, facilitating capital flow and supporting borrowing needs |
2,750 |
| 44 |
IG Groupiggroup.com
An innovative global fintech company empowering clients to pursue financial freedom through award-winning products and platforms across 19,000 financial markets |
2,734 |
| 45 |
Beazleybeazley.com
Specialist insurer offering high standards in underwriting and claims globally Market leaders in cyber, management liability, professional indemnity, and more |
2,726 |
| 46 | 2,719 | |
| 47 |
Rathbonesrathbones.com
Providing investment and wealth management services to private clients, charities, trustees, and professional partners with a focus on responsibility. |
2,695 |
| 48 |
Vitalityvitality.co.uk
This company offers health insurance, life insurance, and investments that reward healthy lifestyle choices, leading to a longer, healthier, and financially secure life |
2,671 |
| 49 |
Close Brothersbit.ly
UK specialist banking group providing lending and deposit taking through commercial finance for SMEs, motor and insurance retail finance, and property development funding. |
2,632 |
| 50 |
Saga plc.saga.co.uk
A dynamic company focused on providing exceptional experiences for people over 50, driving positive change in markets and communities |
2,622 |
| 51 |
Barclays Corporate Bankingbarclayscorporate.com
This company offers corporate banking services to UK businesses with annual turnover above Β£65 million, providing insights and inspiration on social media |
2,600 |
| 52 |
Liberty Specialty Marketslibertyspecialtymarkets.com
Global provider of specialty and commercial insurance and reinsurance products with 1,900 employees in 60 offices worldwide, backed by a Fortune 100 company for financial strength |
2,536 |
| 53 |
Barclays Wealth Managementprivatebank.barclays.com
Providing expert wealth management services through a regional network of financial experts to help clients manage wealth effectively. |
2,528 |
| 54 |
Lloyd'slloyds.com
Global marketplace connecting underwriters and brokers to provide insurance and reinsurance solutions through collective intelligence and risk-sharing expertise. |
2,501 |
| 55 |
Phoenix Groupthephoenixgroup.com
The company is the UK's largest long term savings and retirement business, managing 'heritage' books of business and offering opportunities for development |
2,468 |
| 56 |
Qube Research & Technologiesqube-rt.com
Global quant and systematic investment manager using technology and data for scientific approach to investing, driving innovation for high quality returns Multiple open positions available |
2,393 |
| 57 |
London Stock Exchangelondonstockexchange.com
Global financial marketplace providing extensive access to capital markets and liquidity across multiple asset classes for international businesses, governments, and investment funds. |
2,358 |
| 58 |
L&G β Asset Managementam.landg.com
Asset management firm focusing on responsible investing, client partnership, innovation across public and private assets, and global professional collaboration. |
2,339 |
| 59 | 2,289 | |
| 60 |
S&Wswgroup.com
Financial and professional services firm specializing in wealth management, accountancy, tax advisory, and investment management solutions. |
2,218 |
| 61 |
Collinson Groupcollinsongroup.com
Global company specializing in travel solutions, airport experiences, loyalty programs, insurance, and customer engagement for millions of consumers worldwide |
2,108 |
| 62 |
Evelyn Partnersevelyn.com
A leading UK wealth management and professional services group providing good advice to individuals and businesses for almost 200 years |
2,048 |
| 63 | 2,025 | |
| 64 |
RBC Brewin Dolphinbrewin.co.uk
Providing personalised financial planning, investment management, and specialist advice to individuals, advisers, businesses, and charities for wealth growth and protection. |
1,967 |
| 65 |
Traditiontradition.com
Provides brokerage and market data services across capital and commodity markets, facilitating transactions in money markets, interest rates, equities, and energy derivatives. |
1,948 |
| 66 |
Quilterquilter.com
A UK wealth management company dedicated to creating prosperity for present and future generations through high-quality investment products and services |
1,900 |
| 67 | 1,896 | |
| 68 |
Charles Taylorcharlestaylor.com
Global provider of insurance services, claims management, and technology solutions specializing in complex cases with expert technical support. |
1,886 |
| 69 |
Ocorianocorian.com
A global provider of fund administration, capital markets, corporate, and compliance solutions for various clients, offering expertise, trust, and scale |
1,846 |
| 70 |
M&G Investmentsmandg.com
Global asset manager with over 90 years of experience, offering a range of investment solutions across various asset classes for customers worldwide |
1,761 |
| 71 |
Utmost Grouputmostgroup.com
A leading provider of insurance and savings solutions with a focus on international life assurance, wealth and corporate solutions, and UK life consolidation |
1,697 |
| 72 |
Ninety Oneninetyone.com
Independent global asset manager offering active strategies across equities, fixed income, multi-asset, and alternatives to institutions, advisors, and individual investors worldwide |
1,646 |
| 73 |
Barclays Private Bankprivatebank.barclays.com
A premier private bank offering specialized investment, banking, lending, and wealth advisory services to high-net-worth clients globally with tailored opportunities and expert advice |
1,615 |
| 74 |
BMS Groupbmsgroup.com
Specialist independent insurance brokerage offering tailored wholesale, reinsurance, direct insurance, and capital advisory solutions worldwide with expert teams. |
1,571 |
| 75 |
CMC Marketscmcmarkets.com
Provides online trading and investing platforms with broad financial services, partnering with major organizations and innovating in fintech. |
1,517 |
| 76 |
QBE Europeqbeeurope.com
International insurer and reinsurer offering tailored commercial, personal, and specialty insurance products with strong local expertise across multiple global markets. |
1,517 |
| 77 |
Price Forbespriceforbes.com
Global specialty insurance broker with offices worldwide, working closely with clients to provide tailored solutions, now part of the Ardonagh Group |
1,514 |
| 78 |
Trading 212trading212.com
A company focused on democratizing financial markets through innovative products, with a mission to enable everyone to build wealth Regulatory compliance ensures investor protection |
1,502 |
| 79 |
MS Amlinglobal.msamlin.com
A leading global specialty commercial insurer and reinsurer, providing insurance cover for commercial enterprises and reinsurance protection worldwide |
1,484 |
| 80 |
NatWest Commercial and Institutionalnatwest.com
Provides global financial solutions including rates, currencies, and financing for corporates, banks, sovereigns, funds, and asset managers across various sectors. |
1,414 |
| 81 |
Motability Operations Ltdmo.co.uk
Providing affordable vehicle leasing and comprehensive support services to over 815,000 disabled customers across the UK for independent mobility. |
1,368 |
| 82 |
OSTTRAosttra.com
A company specializing in post-trade solutions, fostering collaboration, innovation, and efficient processes for global financial markets across all asset classes |
1,360 |
| 83 |
Aviva Investorsavivainvestors.com
Global asset management firm focusing on client integration, delivering tailored investment solutions across asset classes with disciplined risk management. |
1,349 |
| 84 |
Barnett Waddinghambarnett-waddingham.co.uk
Providing expert consultancy in risk, pensions, investment, and insurance with trusted partnerships and innovative solutions for diverse clients. |
1,346 |
| 85 |
Standard Life plcstandardlifeplc.com
Providing retirement planning services, leveraging expertise and influence to improve customers' retirement journeys and future financial security. |
1,342 |
| 86 |
Tullett Prebontpicap.com
A global interdealer broker facilitating trading activities in financial and energy sectors through various platforms, market data services, and award-winning brokerage solutions |
1,332 |
| 87 | 1,250 | |
| 88 |
Octopusoctopusgroup.com
It is an entrepreneurial investment group focused on building businesses that address societal challenges, emphasizing stakeholder interests and sustainability. |
1,234 |
| 89 |
Interpathinterpath.com
Providing expertise and creative solutions for critical business decisions, guiding clients towards the right path quickly |
1,220 |
| 90 |
NewDaynewday.co.uk
This company helps people access credit responsibly through a variety of credit products, superior customer service, and data-driven decision-making |
1,203 |
| 91 |
Miller Insurance Services LLPmiller-insurance.com
Leading independent insurance broking firm providing specialist (re)insurance services internationally, focusing on integrity, expertise, and client trust. |
1,191 |
| 92 |
Pepper Advantagepepper-advantage.com
A global credit management company using technology and analytics to manage assets, make informed decisions, and guide clients towards positive outcomes |
1,187 |
| 93 |
Bestway Wholesalebestwaygroup.co.uk
Largest UK trade-only retailer offering diverse career opportunities across finance, marketing, logistics, communications, and various industry sectors. |
1,167 |
| 94 |
Insight Investmentinsightinvestment.com
Global asset manager offering LDI, CDI, fixed income, and ESG-driven investment strategies for various clients, prioritizing meeting objectives over maximizing returns |
1,164 |
| 95 |
G-Researchgresearch.com
A leading quantitative research and technology firm tackling big questions in finance using machine learning and big data for predicting market movements |
1,153 |
| 96 |
Brevan Howardbrevanhoward.com
Management of global macro alternative investments for institutional clients including sovereign wealth funds, pension plans, foundations, and endowments worldwide. |
1,114 |
| 97 | 1,090 | |
| 98 |
HSBC Innovation Bankinghsbcinnovationbanking.com
Supporting innovators and investors worldwide with flexible banking solutions for startups, growth businesses, and investors, powering bold ideas and global opportunities |
1,087 |
| 99 | 1,073 | |
| 100 |
Hymans Robertsonhymans.co.uk
Providing independent pensions, investments, benefits, risk consulting, and technology solutions to employers, trustees, and financial institutions. |
1,060 |
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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 Oct 24, 2026.
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