Which public companies command the most market value?
Explore the world's largest listed companies by market capitalization, geography and sector. Unlike private-company valuations, public market caps move continuously with share prices.
DATA STATUSValidated market snapshot
SOURCEPublic market sources
FRESHNESSOct 1, 2026
CONFIDENCE & CONTEXTWeekday snapshot · market values can change with share prices
Each frame uses a documented market-cap snapshot for that year. Values are not interpolated between observations.
World's most valuable public companies
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Hover for a quick market-cap reading; click to pin the company profile.
Fresh public-market data with transparent sourcing.
Market capitalization is equity market value, not enterprise value. The Top 30 is refreshed from a public global market-cap ranking and cached as a validated DataEnvision snapshot.
Refresh policy: Automated weekday refresh; last validated snapshot is retained if the public source is unavailable or fails validation.
Timeline observations are documented public-market-cap snapshots, not interpolated estimates. Snapshot dates vary by year and are shown in the interface. The 2026 frame uses the current curated DataEnvision snapshot.
Public and private values should not be treated as identical measures: public market cap is continuously priced equity value, while private valuations are periodic financing or secondary-market reference points.
CompaniesMarketCap ↗
Public global market-cap ranking; automated primary source for the current Top 30 snapshot.
SEC EDGAR ↗
Authoritative filing source used elsewhere in DataEnvision for company fundamentals; EDGAR is not treated as a live stock-price feed.
Wikipedia — List of public corporations by market capitalization ↗
Historical quarterly/year-end top-company market-cap tables used for 2020, 2022, 2023 and 2025 snapshots.
CompaniesMarketCap — Time Machine ↗
Historical public-company market-cap snapshot used for July 1, 2024 and current-market cross-checks.
Economipedia — Largest companies 2021 ↗
March 1, 2021 public-company market-cap snapshot.