Top 35 Companies of the UK100 Index (FTSE 100) by Market Cap

The top 35 companies of the UK100 index in terms of market capitalization are listed below. London Stock Exchange is one of the largest and most active stock exchanges in the world. Investing with many top British companies gives us so many trading opportunities.

The United Kingdom is one of the strongest and largest economies worldwide. It is also one of the richest countries in the world for many centuries. On this page, we’re sharing the top 35 and biggest companies listed on the FTSE 100 index.

What is UK100 Index?

UK100 index is also known as FTSE 100 index (Financial Times Stock Exchange 100 index), UK 100 Spot index, and “Footsie.” It is a stock market index comprising of the 100 largest blue-chip companies traded on the London Stock Exchange in terms of market capitalization.

top 35 companies uk100 index

Top 35 List of Companies of the UK100 Index in 2021

Like many other stock market indices, the UK100 index goes through portfolio adjustment and re-balancing every quarter. The 100 stocks listed are screened according to their strict criteria for FTSE inclusion eligibility. A company could enter or exit after the evaluation.

The following are the top 35 companies listed on the FTSE 100 index in terms of market cap as of December 6, 2021.

CompanyMarket Cap. (in GBP)
AstraZeneca127.51 Billion
Unilever Group99.23 Billion
Diageo89.53 Billion
HSBC Holdings87.79 Billion
GlaxoSmithKline77.18 Billion
Royal Dutch Shell A66.98 Billion
BP66.50 Billion
Rio Tinto Group58.92 Billion
Royal Dutch Shell B58.86 Billion
British American Tobacco58.47 Billion
Glencore46.88 Billion
RELX45.34 Billion
BHP Group44.33 Billion
Reckitt Benckiser Group44.00 Billion
Anglo American37.69 Billion
National Grid35.65 Billion
Prudential34.89 Billion
Lloyds Banking Group33.32 Billion
London Stock Exchange Group33.32 Billion
Experian31.91 Billion
Barclays31.36 Billion
Vodafone Group30.04 Billion
CRH28.40 Billion
Ashtead Group27.26 Billion
Compass Group27.01 Billion
Ferguson25.75 Billion
NatWest Group24.59 Billion
Tesco21.35 Billion
Scottish Mortgage Investment Trust20.74 Billion
Flutter Entertainment17.77 Billion
BAE Systems17.47 Billion
Legal & General Group16.92 Billion
SSE16.88 Billion
SEGRO16.78 Billion
BT Group16.76 Billion

Top 35 Stocks of UK100 Index by Market Cap

1. AstraZeneca

AstraZeneca is a British-Swedish global, science-led pharmaceutical company that discovers, develops, manufactures, and markets medicines used by millions of patients worldwide. Their scientific breakthroughs to cancer treatment, cardiovascular diseases, diabetes, covid19 vaccine, and many more medications continue to contribute to the world’s health care.

2. Unilever Group

Unilever is one of the biggest consumer goods companies in the world. Founded in 1929, it houses popular brands like Lipton, Dove, Surf, Clear, Magnum, Knorr, Sunsilk, Creamsilk, Rexona, Vaseline, Lux, Axe, Lifebuoy, and many more. Over 2.5 billion people use Unilever products every day. It is one of the top UK100 stocks chosen by long term investors.

3. Diageo

Diageo is a British beverage alcohol company, one of the world’s largest producers of spirits and beers. They have a wonderful collection of over 200 brands, including the famous J&B, Johnnie Walker, Black & White, Smirnoff, Baileys, Guinness, and many more.

4. HSBC Holdings

HSBC is one of the largest banking and financial services companies in the world and the biggest one in Europe. The company operates in 64 countries and territories across Europe, Asia, North and Latin America, the Middle East, and North Africa. They serve more than 40 million customers worldwide.

5. GlaxoSmithKline

GlaxoSmithKline is one of the largest pharmaceutical companies in the world. The company is headquartered in London, England. GSK has over £77 billion market cap.

6. Royal Dutch Shell ‘A’

Royal Dutch Shell is a British-Dutch multinational oil and gas company. It is one of the largest companies in the world in terms of revenue. The oil giant is also listed on many stock exchanges, including the New York Stock Exchange and London Stock Exchange. It’s always among the top UK100 index companies.

7. BP (British Petroleum)

British Petroleum (BP) is one of the Big Seven oil and gas companies in the world. They operate in Europe, North and South America, Australia, Asia, and Africa. BP has more than 70,100 employees. The oil giant has over £66 billion market cap.

8. Rio Tinto Group

Rio Tinto Group has offices in London and Melbourne. The company is the world’s second-largest metals and mining corporation, producing iron ore, aluminum, copper, diamonds, gold, and uranium.

9. Royal Dutch Shell ‘B’

This is the class B share of Royal Dutch Shell.

10. British American Tobacco

British American Tobacco company was established in 1902 in London. It manufactures and sells cigarettes and tobacco products. Their popular brands include Dunhill, Lucky Strike, Kent, and Pall Mall.

11. Glencore

Glencore is a well-known commodity trading and mining company. They produce more than 60 commodities through approximately 150 assets and operates in more than 35 countries.

12. RELX

RELX is a global provider of information-based analytics and decision tools for professionals. RELX shares are also available to trade on the London, Amsterdam, and New York Stock Exchange.

13. BHP Group

BHP Group is a world-leading resources company. They extract and process minerals, oil, and gas. The company has around £44 billion market cap.

14. Reckitt Benckiser Group

Reckitt Benckiser Group is a global consumer goods company based in England and the Netherlands. They produce trusted brands like Clearasil, Enfa, Gaviscon, Lysol, Strepsils, Varnish, Veet, and many more.

15. Anglo American

Anglo American is the world’s largest producer of platinum and has operations on all five continents. The company is also a significant producer of diamonds, copper, nickel, iron ore, and coal. It was established in Johannesburg, South Africa, and is also based in London, UK.

16. National Grid

National Grid is a British electricity and gas utility company with a subsidiary in the North-Eastern United States. In the US, they serve the energy needs of more than 20 million people in New York, Rhode Island, and Massachusetts. In the UK, it operates the National Grid, a high-voltage electric power transmission network that connects major power stations.

17. Prudential

Prudential is a life and financial services provider company founded in 1848 in London, England. It has a long history of helping people live better by managing and growing their savings and investments.

18. Lloyd’s Banking Group

Lloyd’s Banking Group is a massive British financial institution. They own famous brands including Lloyds Bank, The Bank of Scotland, Scottish Widows, and Halifax.

19. London Stock Exchange Group

London Stock Exchange Group is a global financial market infrastructure company. It owns the London Stock Exchange, one of the world’s oldest stock exchanges. LSEG also operates the FTSE Russell Indices.

20. Experian

Experian is an Irish company and one of the world’s leading global information services companies. They provide consumer and business credit reporting, analytical, and marketing solutions. The company has over £31 billion market cap.

21. Barclays

Barclays is a global investment bank and financial services company. It was established in 1690 in London, making it one of the oldest banks in the world. Built over centuries, that is an extraordinary achievement. Their businesses include consumer banking and payments operations, as well as a top-tier, full service, global corporate and investment bank.

22. Vodafone

Vodafone is a giant telecommunications company in London, United Kingdom. It is one of the biggest telecom companies in the world. In May 2021, Vodafone had more than 300 million mobile customers, 23 million fixed broadband subscribers, and 22 million TV customers.

23. CRH

CRH is an Irish company that manufactures and distributes a diverse range of superior building materials and construction products. They operate in over 30 countries across the globe.

24. Ashtead Group

Ashtead Group is a British industrial equipment rental company. With over £27 billion market capitalization, Ashtead Group is among the top 100 companies on the London Stock Exchange.

25. Compass Group

Compass Group is the world’s largest contract food-service company. They operate in 45 countries and serve over 5.5 billion meals per year. Some of their clients include Google, Coca-Cola, Intel, Boeing, Microsoft, HSBC, Nike, and many more huge corporations.

26. Ferguson

Ferguson is one of the world’s leading specialist distributors of plumbing and heating products, with over 1 million customers served by 35,000 associates in 2,280 locations across North America and the United Kingdom.

27. NatWest Group

NatWest Group is a banking and financial services company in the United Kingdom. Their brands include NatWest, The Royal Bank of Scotland, Ulster Bank, Coutts, Adam & Company. Child & Co. Their history of banking goes back for hundreds of years.

28. Tesco

Tesco is one of the biggest grocery retailers in the world. Last 2020, Tesco achieved £56.5 billion in group sales. The company operates in the United Kingdom, Central Europe, and Asia. Currently, it has over £21 billion market capitalization.

29. Scottish Mortgage Investment Trust

Scottish Mortgage Investment Trust is one of the largest trusts in the United Kingdom. It was founded in 1909. The company is managed by Edinburgh-based, Baillie Gifford & Co. Limited.

30. Flutter Entertainment

Flutter is an international sports betting, gaming, and entertainment business with over six million customers around the world. They have a market cap of over £17 billion.

31. BAE Systems

BAE Systems is a global defense, security, and aerospace company, headquartered in London, United Kingdom. They have a wide range of products and services that covers air, land, and naval forces, as well as advanced electronics, security, information technology, and support solutions.

32. Legal & General Group

Legal & General Group is a financial and insurance company in the United Kingdom. It is the UK’s largest provider of individual life insurance products and the biggest manager of corporate pension schemes.

33. SSE

SSE is a British energy company and a leading generator of renewable electricity in the United Kingdom and Ireland and one of the largest electricity network companies in the UK.


SEGRO is a notable Real Estate Investment Trust (REIT) in the United Kingdom. It is a leading owner, developer, and asset manager of modern warehouses and industrial properties. SEGRO’s properties are strategically located across major cities in Europe.

35. BT Group

BT Group is the largest provider of consumer-fixed line voice and broadband in the United Kingdom. They also serve in 180 countries across the world.

Who Should Invest in UK100 Index companies?

1. Those who want to invest with British brands

UK 100 index is a basket of 100 most prominent companies from the United Kingdom like Unilever, HSBC, GlaxoSmithKline, Royal Dutch Shell, Vodafone, Lloyd’s, Barclays, Tesco, Burberry, Rolls-Royce, IAG (International Consolidated Airlines Group), and many more. If you want to have exposure to UK stocks, this index suits your portfolio.

2. Long term Investors

The FTSE 100 is one of the world’s leading indices, and it is composed of well-established, resilient, and highly regulated companies in the United Kingdom.

The 100 components of UK 100 index are selected carefully, and the allocation spans around different industries – technology, financial services, pharmaceuticals and biotechnology, automobiles, oil and gas, utilities, insurance, retail, media, travel, telecommunications, retail, and health care.

The index is created for growth. If you’re looking at the UK100 chart, it is driving the uptrend direction amidst market crashes and corrections. Thus, investors who want a long-term growth portfolio with minimal risk select an index like the UK100.

3. Active traders

UK100 index is one of the most actively traded indexes in the world. Likewise, many of its constituents are among the most traded stocks. If you are an active trader whose time zone is compatible with the London Stock Exchange trading hours, you can find a lot of opportunities here.

4. Those who want to diversify with UK stocks

Diversification helps investors to minimize risks and losses because their funds are distributed to different stocks from different business sectors. For instance, when there is a downtrend in the tech sector, your entire equity will not hurt so much because your money is invested across different industries.

How to Trade Proportional Shares of UK100 Index?

Not everyone could afford to buy one share of the UK100 index because it’s currently over £7,000 per share. Fortunately, we can invest proportional shares for as low as $1,000 (for non-leveraged CFD trades) using an online broker that offers like eToro.

Similarly, we can invest proportional shares of UK stocks for as low as $50. It is very convenient and affordable to allocate our investment funds across different stocks.

67% of retail investor accounts lose money when trading CFDs with a provider like etoro. You should consider whether you can afford to take the high risk of losing your money.

Best ETF that Track the UK100 Index:

  • iShares Core FTSE 100 UCITS ETF
  • Vanguard FTSE 100 UCITS ETF

World’s Top Indices:

Disclaimer: This content is for information purposes only and should never be considered as professional advice. Every investor has a different risk tolerance and goal. Always do your own research or hire an expert before investing in any asset. All investments have risks. Risk only the money you’re not afraid to lose.

About Fehl Dungo

Founder of DailyPik, entrepreneur, and tech investor. I have a Degree in Accountancy and a background in Finance. I analyze stocks everyday. Copy my trades on eToro Connect with me on Facebook

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