Company lists and headcounts

Who the largest companies are in each industry, how many people they employ, and where the figures come from.

These pages rank the largest companies in an industry or in the US by revenue or employees, using the figures companies report in their own annual filings (10-K and 20-F reports filed with the SEC) and federal data such as USAspending. Headcount pages show how many employees a company has, how that changed year by year and what the number counts.