Companies in Washington
1.2M companies registered in Washington, sourced from official business registers and enriched with industry, size, location and contact data. Below: the largest companies by reported revenue, and how the Washington business base breaks down by industry and headcount.
Part of the United States company directory.
Rankings
Largest companies in Washington
By reported (actual) revenue, updated September 2026. Public-sector entities are excluded.
| # | Company | Industry | City | Revenue (USD) | Employees |
|---|---|---|---|---|---|
| 1 | Amazon.com, Inc. | Retail sale via mail order houses or via Internet | Seattle | $716.9B | 1,576,000 |
| 2 | Microsoft Corporation | Software publishing | Redmond | $281.7B | 228,000 |
| 3 | Costco Wholesale Corporation | Retail sale in non-specialised stores with food, beverages or tobacco predominating | Issaquah | $275.2B | 341,000 |
| 4 | T-Mobile Us, Inc. | Wireless telecommunications activities | Bellevue | $88.3B | 75,000 |
| 5 | Starbucks Corporation | Restaurants and mobile food service activities | Seattle | $37.2B | 381,000 |
| 6 | Coupang, Inc. | Retail sale via mail order houses or via Internet | Seattle | $34.5B | 108,000 |
| 7 | Paccar Inc | Manufacture of motor vehicles | Bellevue | $28.4B | 25,900 |
| 8 | Nordstrom, Inc. | Retail sale of clothing in specialised stores | Seattle | $15B | 55,000 |
| 9 | Expedia Group, Inc. | Travel agency activities | Seattle | $14.7B | 16,000 |
| 10 | Alaska Air Group, Inc | Passenger air transport | Seattle | $14.2B | 35,951 |
| 11 | Expeditors International of Washington, Inc. | Other transportation support activities | Bellevue | $11.1B | 20,000 |
| 12 | Gates Foundation | Activities of other membership organisations n.e.c. | Seattle | $10.2B | 1,376 |
| 13 | Bill & Melinda Gates Foundation Trust, LLC | Trusts, funds and similar financial entities | Seattle | $9.6B | 37 |
| 14 | Pivotal Philanthropies Foundation | Trusts, funds and similar financial entities | Redmond | $7.6B | 1 |
| 15 | University of Washington Inc | Tertiary education | Seattle | $7.5B | 27,228 |
| 16 | Multicare Health System | Hospital activities | Tacoma | $7.2B | 6,510 |
| 17 | Weyerhaeuser Company | Manufacture of veneer sheets and wood-based panels | Seattle | $6.9B | 9,517 |
| 18 | Puget Energy, Inc. | Trade of gas through mains | Bellevue | $5.4B | 3,257 |
| 19 | Puget Sound Energy, Inc. | Production of electricity | Bellevue | $5.4B | 1,009 |
| 20 | Exp World Holdings, Inc. | Real estate agencies | Bellingham | $4.8B | 18,434 |
| 21 | Fortive Corporation | Manufacture of instruments and appliances for measuring, testing and navigation | Everett | $4.2B | 10,000 |
| 22 | Kaiser Foundation Health Plan of Washington | Non-life insurance | Seattle | $3.9B | 9,300 |
| 23 | King County | Administration of the State and the economic and social policy of the community | Seattle | $3.8B | 13,300 |
| 24 | Peacehealth | Hospital activities | Vancouver | $3.6B | 6,690 |
| 25 | Columbia Banking System, Inc. | Other monetary intermediation | Tacoma | $3.2B | 6,005 |
Top 25 by revenue reported to the register. Companies filing no revenue figure are not ranked, whatever their size.
Amazon.com, Inc. leads Washington at $716.9B in reported revenue, from Seattle.
Coverage
Companies by industry in Washington
The industries holding the most companies, by NACE activity code.
Ranked by number of companies. Each record carries its NACE code alongside SIC and NAICS, so the same segment can be pulled in any of the three schemes.
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Other business support service activities n.e.c. is the largest activity in Washington, with 65,806 companies.
Distribution
Company size
By number of employees.
17,776 companies have no disclosed headcount (excluded from the chart).
89% of Washington companies with a disclosed headcount fall in the 1-4 employee band.
Data coverage
What a Washington record carries
Share of the state's companies holding each contact field.
28%
with a website
61%
with a phone number
18%
with an email address
Counted against the 1.2M companies in Washington. Firmographics — industry, size, address, status — are present on every record.
FAQ
Companies in Washington — frequently asked questions
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