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The 100 largest Financial Services companies in London

Tamtam tracks 1,710 Financial Services companies headquartered in London. This list ranks the 100 largest by number of employees on LinkedIn, led by HSBC, Aon and Barclays. Their median headcount is 1,967. Half of them were founded in 2003 or later.

πŸ‡¬πŸ‡§ London100 companiesUpdated Oct 9, 2026
#CompanyIndustryHeadquarters EmployeesFounded
1
HSBChsbc.com

A global financial services organization with a network spanning 63 countries, serving individuals, companies, and governments, creating opportunities for customers worldwide

Financial Services πŸ‡¬πŸ‡§ London 197,879 n/a
2
Aonaon.com

The company provides advice and solutions to clients worldwide, helping them make better decisions to protect and grow their business

Financial Services πŸ‡¬πŸ‡§ London 93,574 n/a
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

Financial Services πŸ‡¬πŸ‡§ London 82,417 n/a
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

Financial Services πŸ‡¬πŸ‡§ London 57,702 n/a
5
WTWwtwco.com

Offering data-driven solutions in people, risk, and capital areas, leveraging global expertise to enhance strategy, resilience, workforce motivation, and performance

Financial Services πŸ‡¬πŸ‡§ London 55,656 n/a
6
LSEGlseg.com

Provides financial indexing, benchmarking, analytic services, technology solutions, and integrated market infrastructure across data, capital markets, and post-trade.

Financial Services πŸ‡¬πŸ‡§ London 25,298 n/a
7
Revolutrevolut.com

A fintech company on a mission to provide customers with more visibility, control, and freedom over their money through innovative products

Financial Services πŸ‡¬πŸ‡§ London 18,462 2015
8
Wisewise.com

Platform enabling individuals and businesses to hold multiple currencies, transfer money internationally, and spend abroad with low fees.

Financial Services πŸ‡¬πŸ‡§ London 11,769 2011
9
Fidelity Internationalfidelityinternational.com

Offers global investment solutions, services, and retirement expertise to diverse clients, managing substantial assets for long-term financial futures.

Financial Services πŸ‡¬πŸ‡§ London 9,884 1969
10
Investecinvestec.com

Provides global banking and asset management services, creating and managing wealth through specialized financial solutions and insights for diverse international clients.

Financial Services πŸ‡¬πŸ‡§ London 9,732 1974
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

Financial Services πŸ‡¬πŸ‡§ London 9,281 2003
12
Capcocapco.com

Global technology and management consultancy specializing in digital transformation, data-driven solutions, and innovation for banking, payments, capital markets, insurance, and energy sectors.

Financial Services πŸ‡¬πŸ‡§ London 8,026 1998
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.

Financial Services πŸ‡¬πŸ‡§ London 7,832 n/a
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.

Financial Services πŸ‡¬πŸ‡§ London 7,619 2003
15
FNZfnz.com

We provide a global wealth management platform to help financial institutions and wealth managers simplify operations and enable millions to invest

Financial Services πŸ‡¬πŸ‡§ London 6,270 n/a
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

Financial Services πŸ‡¬πŸ‡§ London 5,416 2000
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

Financial Services πŸ‡¬πŸ‡§ London 5,413 2015
18
Monzomonzo.com

A mobile-first bank focused on solving problems, treating customers fairly, and being transparent to make banking better

Financial Services πŸ‡¬πŸ‡§ London 5,267 2015
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

Financial Services πŸ‡¬πŸ‡§ London 5,147 n/a
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.

Financial Services πŸ‡¬πŸ‡§ London 4,990 2003
21
Schrodersschroders.com

Manages investments globally for institutions, intermediaries, and individuals, focusing on active management and sustainability to create prosperity and resilient outcomes.

Financial Services πŸ‡¬πŸ‡§ London 4,905 1804
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

Financial Services πŸ‡¬πŸ‡§ London 4,203 1913
23
SumUpsumup.co.uk

A global financial technology company supporting over 4 million small merchants in 36 markets, committed to environmental and social causes

Financial Services πŸ‡¬πŸ‡§ London 4,186 2012
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

Financial Services πŸ‡¬πŸ‡§ London 4,058 1861
25
M&Gmandg.com

An international savings and investments business managing assets for retail and institutional clients, with a focus on helping people grow their savings responsibly

Financial Services πŸ‡¬πŸ‡§ London 3,717 n/a
26
Paysafepaysafe.com

Specialised payments platform enabling businesses and consumers to connect and transact through payment processing, digital wallets, and online cash solutions.

Financial Services πŸ‡¬πŸ‡§ London 3,539 1996
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

Financial Services πŸ‡¬πŸ‡§ London 3,515 n/a
28
Domestic & Generaldomesticandgeneral.com

Protection, repair, and care for household appliances including fridges, washing machines, TVs, and boilers, ensuring reliable home operation.

Financial Services πŸ‡¬πŸ‡§ London 3,376 1912
29
Tidetide.co

Leading fintech providing UK and Indian SMEs with business accounts, banking services, and admin tools Award-winning with global recognition and funding

Financial Services πŸ‡¬πŸ‡§ London 3,323 2015
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.

Financial Services πŸ‡¬πŸ‡§ London 3,301 2011
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

Financial Services πŸ‡¬πŸ‡§ London 3,083 n/a
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

Financial Services πŸ‡¬πŸ‡§ London 2,761 2011
33
ICAPtpicap.com

A leading markets operator providing electronic execution and information services for wholesale market participants, facilitating capital flow and supporting borrowing needs

Financial Services πŸ‡¬πŸ‡§ London 2,750 n/a
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

Financial Services πŸ‡¬πŸ‡§ London 2,734 1974
35
eToroetoro.tw

Social investment platform connecting 40 million users, offering investments in stocks, digital assets, and CFDs (excluding US where cryptoassets only).

Financial Services πŸ‡¬πŸ‡§ London 2,719 2007
36
Rathbonesrathbones.com

Providing investment and wealth management services to private clients, charities, trustees, and professional partners with a focus on responsibility.

Financial Services πŸ‡¬πŸ‡§ London 2,695 1742
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

Financial Services πŸ‡¬πŸ‡§ London 2,671 2004
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.

Financial Services πŸ‡¬πŸ‡§ London 2,632 1878
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

Financial Services πŸ‡¬πŸ‡§ London 2,622 1951
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.

Financial Services πŸ‡¬πŸ‡§ London 2,619 2001
41
Barclays Wealth Managementprivatebank.barclays.com

Providing expert wealth management services through a regional network of financial experts to help clients manage wealth effectively.

Financial Services πŸ‡¬πŸ‡§ London 2,528 n/a
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

Financial Services πŸ‡¬πŸ‡§ London 2,468 n/a
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

Financial Services πŸ‡¬πŸ‡§ London 2,393 2018
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.

Financial Services πŸ‡¬πŸ‡§ London 2,358 1698
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

Financial Services πŸ‡¬πŸ‡§ London 2,343 2012
46
L&G – Asset Managementam.landg.com

Asset management firm focusing on responsible investing, client partnership, innovation across public and private assets, and global professional collaboration.

Financial Services πŸ‡¬πŸ‡§ London 2,339 n/a
47
AXA UKaxa.co.uk

Specializes in insurance products protecting homes, cars, businesses, and offers affordable healthcare plans for UK and international customers.

Financial Services πŸ‡¬πŸ‡§ London 2,289 n/a
48
Evelyn Partnersevelyn.com

A leading UK wealth management and professional services group providing good advice to individuals and businesses for almost 200 years

Financial Services πŸ‡¬πŸ‡§ London 2,048 n/a
49
Eburyebury.com

Specializes in international payments, foreign exchange, trade finance, and cash management solutions primarily for SMEs and mid-sized companies.

Financial Services πŸ‡¬πŸ‡§ London 2,025 2009
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.

Financial Services πŸ‡¬πŸ‡§ London 1,967 1762
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.

Financial Services πŸ‡¬πŸ‡§ London 1,948 1959
52
Quilterquilter.com

A UK wealth management company dedicated to creating prosperity for present and future generations through high-quality investment products and services

Financial Services πŸ‡¬πŸ‡§ London 1,900 n/a
53
Ocorianocorian.com

A global provider of fund administration, capital markets, corporate, and compliance solutions for various clients, offering expertise, trust, and scale

Financial Services πŸ‡¬πŸ‡§ London 1,846 1971
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

Financial Services πŸ‡¬πŸ‡§ London 1,841 2019
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

Financial Services πŸ‡¬πŸ‡§ London 1,761 n/a
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

Financial Services πŸ‡¬πŸ‡§ London 1,646 1991
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

Financial Services πŸ‡¬πŸ‡§ London 1,615 1690
58
Misysfinastra.com

It combines Misys and D+H to form a leading fintech company, Finastra, now the third largest in the world.

Financial Services πŸ‡¬πŸ‡§ London 1,535 1979
59
CMC Marketscmcmarkets.com

Provides online trading and investing platforms with broad financial services, partnering with major organizations and innovating in fintech.

Financial Services πŸ‡¬πŸ‡§ London 1,517 1989
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

Financial Services πŸ‡¬πŸ‡§ London 1,502 2004
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.

Financial Services πŸ‡¬πŸ‡§ London 1,368 1978
62
OSTTRAosttra.com

A company specializing in post-trade solutions, fostering collaboration, innovation, and efficient processes for global financial markets across all asset classes

Financial Services πŸ‡¬πŸ‡§ London 1,360 2021
63
Aviva Investorsavivainvestors.com

Global asset management firm focusing on client integration, delivering tailored investment solutions across asset classes with disciplined risk management.

Financial Services πŸ‡¬πŸ‡§ London 1,349 2008
64
Barnett Waddinghambarnett-waddingham.co.uk

Providing expert consultancy in risk, pensions, investment, and insurance with trusted partnerships and innovative solutions for diverse clients.

Financial Services πŸ‡¬πŸ‡§ London 1,346 1989
65
Standard Life plcstandardlifeplc.com

Providing retirement planning services, leveraging expertise and influence to improve customers' retirement journeys and future financial security.

Financial Services πŸ‡¬πŸ‡§ London 1,342 n/a
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

Financial Services πŸ‡¬πŸ‡§ London 1,332 n/a
67
MLmarkloucas.co.uk

An established company in the payments and banking industry consulting and deploying professional consultants globally for trusted expertise

Financial Services πŸ‡¬πŸ‡§ London 1,320 2007
68
Isioisio.com

A leading financial services company challenging traditional thinking in pensions, benefits, and investment advice by providing expertise and innovative solutions

Financial Services πŸ‡¬πŸ‡§ London 1,250 2020
69
Octopusoctopusgroup.com

It is an entrepreneurial investment group focused on building businesses that address societal challenges, emphasizing stakeholder interests and sustainability.

Financial Services πŸ‡¬πŸ‡§ London 1,234 n/a
70
myPOSmypos.com

Innovative European fintech offering instant settlement of funds, free e-money merchant accounts, Business Visa cards, POS terminals, and online/mobile payment solutions

Financial Services πŸ‡¬πŸ‡§ London 1,227 2014
71
Interpathinterpath.com

Providing expertise and creative solutions for critical business decisions, guiding clients towards the right path quickly

Financial Services πŸ‡¬πŸ‡§ London 1,220 n/a
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

Financial Services πŸ‡¬πŸ‡§ London 1,216 n/a
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

Financial Services πŸ‡¬πŸ‡§ London 1,203 2001
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

Financial Services πŸ‡¬πŸ‡§ London 1,187 2012
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

Financial Services πŸ‡¬πŸ‡§ London 1,153 2001
76
Teyateya.com

A pan-European company offering hassle-free payment solutions, business management tools, and growth potential for businesses globally

Financial Services πŸ‡¬πŸ‡§ London 1,140 2019
77
Smartstreamsmart.stream

Provides financial institutions with accurate, timely data insights to streamline operations, reduce costs, and ensure regulatory compliance confidently.

Financial Services πŸ‡¬πŸ‡§ London 1,114 2000
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

Financial Services πŸ‡¬πŸ‡§ London 1,087 2023
79
PEIpei.group

Providing market insight, data, and networking services to investment professionals in private real estate, infrastructure, equity, debt, and sustainable investments.

Financial Services πŸ‡¬πŸ‡§ London 1,076 2001
80
Hymans Robertsonhymans.co.uk

Providing independent pensions, investments, benefits, risk consulting, and technology solutions to employers, trustees, and financial institutions.

Financial Services πŸ‡¬πŸ‡§ London 1,060 1921
81
VAT ITvatit.com

Specializing in foreign tax refund opportunities, this company offers VAT refunds for businesses transacting in the EU, Australia, Japan, and the Gulf States

Financial Services πŸ‡¬πŸ‡§ London 1,058 2000
82
Capital on Tapcapitalontap.com

Provides small business credit cards with spend management tools, quick funding access, employee expense control, and cashback rewards.

Financial Services πŸ‡¬πŸ‡§ London 1,055 2012
83
Zopa Bankzopa.com

A pioneering force in finance, creating simple, fair, and honest financial products with customer feedback at the heart of their mission

Financial Services πŸ‡¬πŸ‡§ London 1,048 2005
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.

Financial Services πŸ‡¬πŸ‡§ London 1,039 n/a
85
FXCMfxcm.com

A leading provider of online foreign exchange trading, CFD trading, and spread betting services with a focus on innovation and education

Financial Services πŸ‡¬πŸ‡§ London 1,012 1999
86
FxProfxpro.com

International online broker offering CFDs and Spread Betting on various asset classes, with awards, educational resources, and 24/5 customer support in 170+ countries

Financial Services πŸ‡¬πŸ‡§ London 995 1999
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.

Financial Services πŸ‡¬πŸ‡§ London 990 2010
88
ICGicgam.com

Global alternative asset manager providing capital to businesses, managing diversified assets, delivering long-term returns, and promoting sustainable investment practices.

Financial Services πŸ‡¬πŸ‡§ London 961 1989
89
Delta Capitadeltacapita.com

Specializes in capital markets consulting, managed services, and technology innovation with global presence and multi-client managed service solutions.

Financial Services πŸ‡¬πŸ‡§ London 942 2010
90
LCHlseg.com

Provides clearing services for derivatives and financial markets, enhancing risk management, capital efficiency, and regulatory compliance globally.

Financial Services πŸ‡¬πŸ‡§ London 930 1888
91
Rapydrapyd.net

Enable global commerce with comprehensive payment and fintech solutions for businesses, developers, and consumers to send, receive, and manage funds easily

Financial Services πŸ‡¬πŸ‡§ London 925 n/a
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

Financial Services πŸ‡¬πŸ‡§ London 910 2019
93
Oxane Partnersoxanepartners.com

A technology-driven solutions provider for private markets, offering transformative solutions for investment analysis and management across all asset classes

Financial Services πŸ‡¬πŸ‡§ London 898 2014
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.

Financial Services πŸ‡¬πŸ‡§ London 884 2007
95
Exinityexinity.com

A global company empowering ambitious individuals to achieve financial independence through innovative trading and investing products and risk management tools

Financial Services πŸ‡¬πŸ‡§ London 827 1998
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

Financial Services πŸ‡¬πŸ‡§ London 821 2010
97
Kudakuda.com

A fintech company in Africa providing accessible, affordable, and rewarding financial services through a money app, including free transfers, budgeting, investments, and instant credit

Financial Services πŸ‡¬πŸ‡§ London 809 2019
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.

Financial Services πŸ‡¬πŸ‡§ London 800 2006
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

Financial Services πŸ‡¬πŸ‡§ London 793 n/a
100
TerraPayterrapay.com

This company headquartered in the UK specializes in simplifying cross-border payments worldwide, providing access to even the most inaccessible markets

Financial Services πŸ‡¬πŸ‡§ London 743 2014

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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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