These London-based companies are predominantly large and well-established institutions within the banking sector. They offer a wide range of financial services, from personal and commercial banking to specialized areas like corporate finance and digital banking.
Key players include Standard Chartered, an international banking group; Santander UK, providing personal and commercial financial products; Barclays UK, focused on financial services for individuals; and the Bank of England, maintaining monetary and financial stability. A notable pattern is the significant presence of historical institutions, with several companies founded in the 17th and 18th centuries, alongside newer digital banks.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 |
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 | |||
| 2 |
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 | |||
| 3 |
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 | |||
| 4 |
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 | |||
| 5 |
Bank of Englandbankofengland.co.uk
Maintains monetary and financial stability to promote the public good and benefit of the people in the United Kingdom. |
5,947 | |||
| 6 | 4,789 | ||||
| 7 | 4,161 | ||||
| 8 |
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 | |||
| 9 |
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 | |||
| 10 |
Barclays Corporate Bankingbarclayscorporate.com
This company offers corporate banking services to UK businesses with annual turnover above 拢65 million, providing insights and inspiration on social media |
2,600 | |||
| 11 |
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 | |||
| 12 |
ICBC Standard Bank Plcicbcstandard.com
Specializes in commodities, fixed income, and currencies with focus on emerging and frontier markets, serving global clients from international offices. |
981 | |||
| 13 |
EFG Private Bankefginternational.com
A UK-based private bank offering personalized services for HNW and UHNW individuals, with a focus on sustainable growth, community support, and cultural enrichment |
928 | |||
| 14 |
ClearBankclear.bank
Provides fully regulated banking infrastructure and real-time clearing access via API to fintechs, crypto platforms, banks, and credit unions. |
735 | |||
| 15 |
C. Hoare & Co.hoaresbank.co.uk
Established for over 350 years, we offer bespoke banking services in London and Cambridge, blending tradition with modern technology and a focus on responsible banking |
597 | |||
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. | |||||
| 16 |
Bank Of Baroda UKbankofbarodauk.com
A subsidiary of Bank of Baroda, registered in UK, authorized and regulated by PRA & FCA, offering commercial banking operations |
514 | |||
| 17 |
Zempler Bankzemplerbank.com
providing smart banking technology and human service tailored to sole traders, startups, and small businesses across the UK |
500 | |||
| 18 |
United Trust Bank Limitedutbank.co.uk
Specialist bank offering secured funding for individuals and businesses, including development, bridging, structured finance, asset finance, and specialist mortgages. |
475 | |||
| 19 |
Hampshire Trust Bankhtb.co.uk
Providing specialist finance solutions including development finance, mortgages, bridging finance, and savings accounts to support UK businesses and individuals. |
465 | |||
| 20 |
FCMB Bank UK Limitedfcmbuk.com
A UK-based subsidiary of FCMB Group offers banking services including foreign exchange, treasury, corporate banking, trade finance, personal, and business banking |
442 | |||
| 21 |
Cynergy Bankcynergybank.co.uk
Specialist bank providing tailored financial services to business owners, property entrepreneurs, and family businesses across multiple UK locations. |
417 | |||
| 22 |
Crown Agents Bankcrownagentsbank.com
Provider of wholesale foreign exchange and cross-border payment services for governments, development organisations, banks, and financial institutions in emerging markets. |
355 | |||
| 23 |
State Bank of India UKsbiuk.statebank
This company is the official account for State Bank of India UK, providing banking services and customer support through email and phone |
343 | |||
| 24 |
FirstBank UK Limitedfbnbank.co.uk
Offshore banking and international treasury services facilitating cross-border trade and investment between Africa, Europe, and the Middle East. |
340 | |||
| 25 |
AlRayan Bank UKalrayanbank.co.uk
The company is a bank that provides customer service through its website and phone number, emphasizing that LinkedIn is not an official channel |
327 | |||
| 26 |
ICICI Bank UKicicibank.co.uk
A UK-based bank offering personal, business, corporate, and investment banking services in the UK and Europe with multiple locations and regulatory authorizations |
314 | |||
| 27 |
BACB plcbacb.co.uk
International wholesale bank providing tailored trade finance and real estate lending services focused on Africa and Middle East markets. |
281 | |||
| 28 |
Guaranty Trust Bank (UK) Limitedgtbankuk.com
A UK-based bank offering retail and commercial banking services, specializing in trade finance and mortgages for businesses and individuals in West Africa and other jurisdictions |
262 | |||
| 29 |
National Westminster Bank (NatWest)natwest.com
A major retail and commercial bank in the UK established in 1968, now part of NatWest Group with government ownership |
258 | |||
| 30 |
NatWest Businessnatwest.com
Providing support and resources for British businesses to grow, offering insights, analysis, and webchat for account inquiries while promoting respectful online interaction |
252 | |||
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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 Nov 12, 2026.
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