INSIDE
COMPANIESMARKETCAP
Some finance sites bury the number you came for under three ads and a newsletter popup. CompaniesMarketCap does the opposite: it answers one question — what is this worth, and where does it rank — faster than almost anything else on the web. Here is how it works, what it does brilliantly, and where you should be careful.
- What it is: a free ranking site, founded around 2020, that lists over 11,000 public companies by market capitalization — plus metals, crypto and ETFs on the same ladder.
- The clever part: its all-assets ranking puts gold, NVIDIA and Bitcoin in one table, which reframes how big things actually are.
- Depth: rankings by country, by sector, and by 16 different metrics — revenue, employees, P/E, dividend yield, debt, cash on hand and more.
- No blog: unusually, there is no editorial content at all. The data pages are the publication.
- The caveat: prices are delayed by minutes to hours and metal market caps are estimates. Use it for scale and context, never for execution.
What CompaniesMarketCap is
CompaniesMarketCap launched around 2020 as an independent, unfunded project with a narrow mission: rank the world's public companies by what the market says they are worth. It has stayed deliberately small in scope and enormous in coverage. Today the global ranking tracks more than 11,000 companies representing over $151 trillion in combined market value.
The site is free, requires no account to browse, and carries none of the friction that defines modern finance media. There is no paywall, no gated report, no email capture standing between you and the number. That restraint is the product. It also draws a clear line about what it is not: the footer states plainly that CompaniesMarketCap has no association with CoinMarketCap, a disclaimer it evidently needs to keep repeating.
Private companies are excluded by design. As the site explains, valuing them reliably is not possible without public financials — so the ranking stays honest by staying public-only.
One ladder for every asset
The idea that makes CompaniesMarketCap genuinely useful is deceptively simple. Rather than keeping stocks, metals and crypto in separate universes, it ranks them together. Gold is not "the gold market" — it is a line item you can compare directly against Apple. Bitcoin is not an alternate reality — it sits between two semiconductor firms.
Seeing them stacked is clarifying. Gold's roughly $29 trillion dwarfs every company on earth, several times over. The largest tech firms cluster in the $4 trillion range. Bitcoin, endlessly described as enormous, ranks below companies most people could not name. None of this is opinion — it is just the same arithmetic applied consistently, which is exactly what makes it persuasive.
Once you internalize that scale, position sizing and expectations change. If you want to see what those differences compound into over decades, our S&P 500 Growth Calculator turns the same idea into a personal projection.
Navigating CompaniesMarketCap properly
Most visitors land on the homepage, scroll the top 100, and leave. That is a fraction of what is there. The real depth lives in three navigation layers, and learning them turns the site from a curiosity into a research tool.
By country
Every major market has its own ranking — the United States, Germany, Japan, India, Brazil and dozens more. Useful for understanding how concentrated a national economy really is.
By sector
Around forty categories, from semiconductors and artificial intelligence to airlines, banks, mining and restaurant chains.
By ETF type
A surprisingly deep ETF section covering S&P 500, bond, dividend, gold, Bitcoin, sector and leveraged funds ranked by size.
Then there is the sorting layer, which is where the site quietly becomes powerful. Any list can be re-ranked by earnings, revenue, employees, P/E ratio, dividend yield, operating margin, total assets, total debt, cash on hand, or price to book — sixteen metrics in total. Sorting the semiconductor sector by P/E instead of size tells a very different story than the default view.
Why CompaniesMarketCap has no articles
Here is what surprises people who go looking: there is no blog. No market commentary, no analyst takes, no "5 stocks to watch" listicles. For a site with over a million monthly visits, that absence is striking — and deliberate.
The data pages are the content. Each company profile, each sector ranking, each country list is an evergreen page that updates itself and answers a specific search query. Someone typing "largest airlines by market cap" gets a live answer rather than an article from 2021 with stale numbers. It is a content strategy built entirely on structure instead of prose, and it works: the site attracts well over a million backlinks precisely because journalists and researchers keep citing those tables.
For anyone building an online project, this is worth studying. CompaniesMarketCap ranks for thousands of queries without writing a single article. Sometimes the strongest content is a well-maintained database. We explored a related idea in our Wise fintech case study, where product transparency did the marketing.
What to watch out for
A fair guide names the weak spots, and CompaniesMarketCap names most of them itself — which is a good sign.
Prices are delayed
The site states the delay can run from a few minutes to several hours. It is a reference, not a trading terminal. Never act on a price you read here without confirming it live.
Metal caps are estimates
Gold and silver market caps depend on assumptions about total above-ground supply. The magnitude is right; the precision is not.
Occasional data errors
With 11,000+ tickers and automated collection, mistakes happen — users have reported incorrect stock split history. Cross-check anything load-bearing against a filing or the company's investor relations page.
No analysis included
Rankings tell you size, not quality. A large market cap is not a recommendation, and a small one is not a bargain. The interpretation is entirely yours.
Three ways to use it well
Rankings become useful the moment you attach a question to them. Three habits worth borrowing:
Sanity-check the story
When a headline calls a company "a giant," look it up. Rank against peers, then against gold. Scale beats adjectives every time.
Map a sector before you buy
Open a category ranking, sort by P/E and by revenue, and see who is expensive relative to what they actually earn. Then test the plan — our DCA Planner models steady contributions, and the Drawdown Simulator shows what the bad years feel like.
Train your intuition
Guessing valuations before you check them builds real market sense fast. That is the idea behind our Guess the Stock game — same instinct, gamified.
CompaniesMarketCap answers "how big" better than almost anyone. It does not answer "should I buy." Pair it with your own research, and if the vocabulary is still new, start with our Stock Academy before you put money behind any ranking.
CompaniesMarketCap — quick answers
What is CompaniesMarketCap?
A free site launched around 2020 that ranks over 11,000 public companies by market capitalization, and extends the same ranking to precious metals, cryptocurrencies and ETFs.
Is it free and accurate?
Free, with no paywall. Broadly reliable for scale and comparison, but prices are delayed by minutes to hours and metal market caps are estimates. Use it for context, not execution.
Does it have a blog?
No. It publishes no editorial content. The ranking pages themselves are the publication, updating continuously and answering search queries directly.
What can you sort by?
Market cap, earnings, revenue, employees, P/E ratio, dividend yield, market cap gain and loss, operating margin, total assets, net assets, liabilities, total debt, cash on hand and price to book.
Is it related to CoinMarketCap?
No. Despite the similar name, the site states clearly in its footer that it has no association with CoinMarketCap.
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Alpha Tech Finance is independent. Every guide and tool here is researched and given away free — no paywalls, no sponsored takes. A small contribution keeps it that way.
