HomeMarkets overviewSharesLargest Companies by Industry
The following pages rank the largest publicly traded companies across major industries by market capitalisation. Each ranking shows the largest listed companies in that industry, alongside their market capitalisation and country of primary listing.
Capital.com market cap rankings classify each company by its primary source of revenue. This broadly reflects how classification systems such as the Global Industry Classification Standard (GICS) and Industry Classification Benchmark (ICB) group companies by their principal business activities.
For diversified companies, the activity that generates the largest share of revenue determines the industry. As a result, a company may appear in a different category from the one most commonly associated with its brand.
If its revenue mix changes materially, its classification may also change, moving it between industry rankings even if its market capitalisation stays the same.
Grouping companies by industry and market capitalisation helps put comparisons in context, particularly where businesses face similar demand drivers, cost structures and regulation.
Market cap measures a company's equity market value, not its profitability, competitive strength or investment quality. Industry rankings can show which companies have the highest market values, how concentrated that value is and how smaller companies compare.
Some industries concentrate much of their combined market value in a few companies, while others spread it more widely.
Industry market cap rankings order companies within the same industry by their total equity market value, calculated from share price and shares outstanding. They show which companies have the largest market capitalisations and whether market value is concentrated among a few businesses or spread more widely across the industry.
For these market cap rankings, Capital.com classifies each company by its primary source of revenue. For diversified businesses, the activity generating the largest share of revenue determines the industry.
This means a company may appear in a different industry from the one most commonly associated with its brand.
Not necessarily. Market cap shows a company's equity market value, but it does not measure profitability, growth or risk.
Companies with similar market caps can differ significantly in financial performance, valuation and volatility, so market cap is best viewed as one measure of company size rather than a standalone investment signal.
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Industry rankings change as share prices and share counts move. Company results, expectations, sector conditions and wider economic developments can push share prices higher or lower, while buybacks, new issuance, mergers or delistings can change the number of shares outstanding.
A company may also move between rankings if changes in its revenue mix lead to a different industry classification.
