317-622-8970Search all companies →Largest Raw Materials Companies in California (2026)
Factur's directory lists 4,750 raw materials companies in California. These are the 10 largest of them by annual revenue, led by K+S Aktiengesellschaft ($4.2B), Asia Pacific Resources Inc ($184M) and OK Mine Company Inc ($142M).
Size mix: of the 4,746 with a known headcount, 94.1% have 1-50 employees, 5.5% 51-200, 18 companies 201-1000, 1 company 1001-5000 and 3 companies 5001+. 10 employ more than 500 people.
The 10 largest raw materials companies in California by annual revenue
| # | Company | City | Employees | Annual revenue |
|---|---|---|---|---|
| 1 | K+S Aktiengesellschaft | — | 11,307 | $4.2B |
| 2 | Asia Pacific Resources Inc | San Francisco | 127 | $184M |
| 3 | OK Mine Company Inc | Long Beach | 94 | $142M |
| 4 | 20th Century Coal Company Inc | Malibu | 98 | $128M |
| 5 | Lomita Prospectors LLC | San Francisco | 95 | $125M |
| 6 | Lucara Diamond Corp | Los Angeles | 583 | $117M |
| 7 | Cal T Coal Inc | San Jose | 69 | $113M |
| 8 | KoBold Metals | Berkeley | 200 | $110M |
| 9 | Nv Minerals LLC | Los Angeles | 78 | $107M |
| 10 | Minerals Exploration - Co | San Ramon | 82 | $106M |
How this list is ranked
Companies are ranked by annual revenue (USD) as recorded on each company's profile in the Factur directory, highest first; companies with the same revenue are ordered by employee count. Only companies with a positive revenue figure on file are ranked, so a large private company with no reported revenue can be missing. The list covers companies whose record places them in California and whose Factur industry is Raw materials. Figures are a snapshot of the directory, refreshed when the rankings are regenerated; open a profile for its current data.