| # | 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 |
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 |
| 5 | 55,656 | |
| 6 | 25,298 | |
| 7 |
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 |
| 8 | 11,769 | |
| 9 |
Fidelity Internationalfidelityinternational.com
Offers global investment solutions, services, and retirement expertise to diverse clients, managing substantial assets for long-term financial futures. |
9,884 |
| 10 |
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 |
| 11 |
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 |
| 12 | 8,026 | |
| 13 |
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 |
| 14 |
Acuity Analyticsacuityanalytics.com
Provides bespoke research, analytics, and technology solutions to financial services, helping institutions operate efficiently and unlock human capital to drive revenue. |
7,619 |
| 15 | 6,270 | |
| 16 |
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 |
| 17 |
Moniepoint Groupmoniepoint.com
A leading fintech company offering digital payment solutions, credit access, and business management tools to help businesses worldwide grow and succeed |
5,413 |
| 18 | 5,267 | |
| 19 |
LSEG Data & Analyticslseg.com
A global provider of financial markets data and infrastructure, enabling customers to gain insights through data, feeds, analytics, and workflow solutions |
5,147 |
| 20 |
Apex Group Ltd (UK Branch)apexgroup.com
Global financial services provider offering fund services, digital onboarding, custody, depositary, business services, and ESG advisory for asset managers and private clients. |
4,990 |
| 21 |
Schrodersschroders.com
Manages investments globally for institutions, intermediaries, and individuals, focusing on active management and sustainability to create prosperity and resilient outcomes. |
4,905 |
| 22 |
Fitch Group, Inc.fitch.group
Global leader in financial information services with operations in 30+ countries Offers credit ratings, research, risk solutions, training, and venture investments Dual headquarters in London and New York |
4,203 |
| 23 |
SumUpsumup.co.uk
A global financial technology company supporting over 4 million small merchants in 36 markets, committed to environmental and social causes |
4,186 |
| 24 |
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 |
| 25 | 3,717 | |
| 26 |
Paysafepaysafe.com
Specialised payments platform enabling businesses and consumers to connect and transact through payment processing, digital wallets, and online cash solutions. |
3,539 |
| 27 |
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 |
| 28 |
Domestic & Generaldomesticandgeneral.com
Protection, repair, and care for household appliances including fridges, washing machines, TVs, and boilers, ensuring reliable home operation. |
3,376 |
| 29 | 3,323 | |
| 30 |
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 |
| 31 |
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 |
| 32 |
TradingViewtradingview.com
Social network and charting platform for traders and investors, used by 50 million+ users worldwide with open source charts used by financial giants |
2,761 |
| 33 |
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 |
| 34 |
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 |
| 35 | 2,719 | |
| 36 |
Rathbonesrathbones.com
Providing investment and wealth management services to private clients, charities, trustees, and professional partners with a focus on responsibility. |
2,695 |
| 37 |
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 |
| 38 |
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 |
| 39 |
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 |
| 40 |
Financial Ombudsman Servicefinancial-ombudsman.org.uk
Free service resolving disputes between consumers and financial businesses, investigating complaints, ensuring fair treatment, and enforcing legal remedies. |
2,619 |
| 41 |
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 |
| 42 |
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 |
| 43 |
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 |
| 44 |
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 |
| 45 |
Checkout.comcheckout.com
A financial technology company providing a high-performance payments platform for enterprise and scaling businesses worldwide, processing payments, payouts, and managing card programs |
2,343 |
| 46 |
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 |
| 47 | 2,289 | |
| 48 |
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 |
| 49 | 2,025 | |
| 50 |
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 |
| 51 |
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 |
| 52 |
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 |
| 53 |
Ocorianocorian.com
A global provider of fund administration, capital markets, corporate, and compliance solutions for various clients, offering expertise, trust, and scale |
1,846 |
| 54 |
Dojodojo.careers
A scaling fintech company empowering businesses and diners with fast funding, payments, smart integrations, virtual queues, and restaurant bookings through innovative technology |
1,841 |
| 55 |
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 |
| 56 |
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 |
| 57 |
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 |
| 58 |
Misysfinastra.com
It combines Misys and D+H to form a leading fintech company, Finastra, now the third largest in the world. |
1,535 |
| 59 |
CMC Marketscmcmarkets.com
Provides online trading and investing platforms with broad financial services, partnering with major organizations and innovating in fintech. |
1,517 |
| 60 |
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 |
| 61 |
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 |
| 62 |
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 |
| 63 |
Aviva Investorsavivainvestors.com
Global asset management firm focusing on client integration, delivering tailored investment solutions across asset classes with disciplined risk management. |
1,349 |
| 64 |
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 |
| 65 |
Standard Life plcstandardlifeplc.com
Providing retirement planning services, leveraging expertise and influence to improve customers' retirement journeys and future financial security. |
1,342 |
| 66 |
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 |
| 67 |
MLmarkloucas.co.uk
An established company in the payments and banking industry consulting and deploying professional consultants globally for trusted expertise |
1,320 |
| 68 | 1,250 | |
| 69 |
Octopusoctopusgroup.com
It is an entrepreneurial investment group focused on building businesses that address societal challenges, emphasizing stakeholder interests and sustainability. |
1,234 |
| 70 | 1,227 | |
| 71 |
Interpathinterpath.com
Providing expertise and creative solutions for critical business decisions, guiding clients towards the right path quickly |
1,220 |
| 72 |
FE fundinfofefundinfo.com
By providing accurate data, technology solutions, research, and expert insights, we connect the fund management industry to inform better investment decisions |
1,216 |
| 73 |
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 |
| 74 |
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 |
| 75 |
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 |
| 76 | 1,140 | |
| 77 |
Smartstreamsmart.stream
Provides financial institutions with accurate, timely data insights to streamline operations, reduce costs, and ensure regulatory compliance confidently. |
1,114 |
| 78 |
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 |
| 79 | 1,076 | |
| 80 |
Hymans Robertsonhymans.co.uk
Providing independent pensions, investments, benefits, risk consulting, and technology solutions to employers, trustees, and financial institutions. |
1,060 |
| 81 | 1,058 | |
| 82 |
Capital on Tapcapitalontap.com
Provides small business credit cards with spend management tools, quick funding access, employee expense control, and cashback rewards. |
1,055 |
| 83 | 1,048 | |
| 84 |
Cabot Credit Managementcabotcreditmanagement.com
Provides comprehensive credit management services including early stage collections, business process outsourcing, contingent collections, trace services, and litigation activities for various credit providers. |
1,039 |
| 85 | 1,012 | |
| 86 | 995 | |
| 87 |
Funding Circle UKfundingcircle.com
Provide fast, hassle-free online loans to small businesses in the UK, enabling quick access to finance without complex processes. |
990 |
| 88 | 961 | |
| 89 |
Delta Capitadeltacapita.com
Specializes in capital markets consulting, managed services, and technology innovation with global presence and multi-client managed service solutions. |
942 |
| 90 | 930 | |
| 91 | 925 | |
| 92 |
Allica Bankallica.bank
A leading UK fintech company dedicated to supporting small and medium businesses with modern technology, local relationships, and personalized banking services |
910 |
| 93 |
Oxane Partnersoxanepartners.com
A technology-driven solutions provider for private markets, offering transformative solutions for investment analysis and management across all asset classes |
898 |
| 94 |
Vocalink, a Mastercard companyvocalink.com
Designs and operates real-time bank account-based payment systems powering UK payments, settlements, direct debits, and ATM networks. |
884 |
| 95 |
Exinityexinity.com
A global company empowering ambitious individuals to achieve financial independence through innovative trading and investing products and risk management tools |
827 |
| 96 |
FRP Advisoryfrpadvisory.com
FRP is a national business advisory firm specializing in forensics, corporate finance, debt restructuring, and financial advisory to provide strategic solutions for various businesses |
821 |
| 97 | 809 | |
| 98 |
Langham Halllanghamhall.com
Provides expert-led, technology-powered fund administration, regulatory compliance, and depositary services for private equity, real estate, infrastructure, and credit funds globally. |
800 |
| 99 |
Aegon UKaegon.co.uk
An integrated financial services group in the UK, providing pensions, savings, and investment products to millions, with a focus on helping people live their best lives |
793 |
| 100 |
TerraPayterrapay.com
This company headquartered in the UK specializes in simplifying cross-border payments worldwide, providing access to even the most inaccessible markets |
743 |
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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 9, 2026.
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