Top Companies in Washington
The top all industries businesses in Washington, ranked by AI-verified Trust Duck Score (0–100).
Amazon
Amazon is a global technology and e-commerce leader offering cloud computing via AWS digital streaming AI services and one of the world's largest online retail platforms serving hundreds of millions of customers.
Microsoft
Microsoft Corporation is a global technology leader that develops and licenses software, hardware, and cloud services. Its products include Windows, Microsoft 365, Azure, Teams, Xbox, and Surface — serving individuals, businesses, and governments worldwide.
Costco
Costco Wholesale Corporation operates an international chain of membership warehouses offering high-quality merchandise at low prices to over 130 million cardholders worldwide through its warehouse and e-commerce channels.
Top 3 All Industries Companies in Washington -- September 2026
These are the top 3 All Industries companies in Washington for September 2026, ranked by Trust Duck Score -- an independent 0-100 reliability score calculated from external reviews, LinkedIn presence, web presence, Google Maps verification, and community feedback on Trust Duck. No paid placements.
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🥇 #1 -- Amazon (Trust Duck Score: 26/100)
Amazon is a global technology and e-commerce leader offering cloud computing via AWS digital streaming AI services and one of the world's largest online retail platforms serving hu... Based in Seattle, United States.
Why they rank here: verified LinkedIn presence; verified Google Maps listing; long-established domain (10+ years).
[View full profile](https://trustduck.click/business/amazon)
---
🥈 #2 -- Microsoft (Trust Duck Score: 26/100)
Microsoft Corporation is a global technology leader that develops and licenses software, hardware, and cloud services. Its products include Windows, Microsoft 365, Azure, Teams, Xb... Based in Redmond, United States.
Why they rank here: verified LinkedIn presence; verified Google Maps listing; long-established domain (10+ years).
[View full profile](https://trustduck.click/business/microsoft)
---
🥉 #3 -- Costco (Trust Duck Score: 14/100)
Costco Wholesale Corporation operates an international chain of membership warehouses offering high-quality merchandise at low prices to over 130 million cardholders worldwide thro... Based in Issaquah, United States.
Why they rank here: verified LinkedIn presence; verified Google Maps listing.
[View full profile](https://trustduck.click/business/costco)
---\n\nRankings update monthly as new reviews and verifications come in. Trust Duck Score is calculated independently -- scores reflect verified data, not paid placement.
Previous months
July 2026▸
Top 3 All Industries Companies in Washington -- July 2026
These are the top 3 All Industries companies in Washington for July 2026, ranked by Trust Duck Score -- an independent 0-100 reliability score calculated from external reviews, LinkedIn presence, web presence, Google Maps verification, and community feedback on Trust Duck. No paid placements.
---
🥇 #1 -- Amazon (Trust Duck Score: 26/100)
Amazon is a global technology and e-commerce leader offering cloud computing via AWS digital streaming AI services and one of the world's largest online retail platforms serving hu... Based in Seattle, United States.
Why they rank here: verified LinkedIn presence; verified Google Maps listing; long-established domain (10+ years).
[View full profile](https://trustduck.click/business/amazon)
---
🥈 #2 -- Microsoft (Trust Duck Score: 26/100)
Microsoft Corporation is a global technology leader that develops and licenses software, hardware, and cloud services. Its products include Windows, Microsoft 365, Azure, Teams, Xb... Based in Redmond, United States.
Why they rank here: verified LinkedIn presence; verified Google Maps listing; long-established domain (10+ years).
[View full profile](https://trustduck.click/business/microsoft)
---
🥉 #3 -- Costco (Trust Duck Score: 14/100)
Costco Wholesale Corporation operates an international chain of membership warehouses offering high-quality merchandise at low prices to over 130 million cardholders worldwide thro... Based in Issaquah, United States.
Why they rank here: verified LinkedIn presence; verified Google Maps listing.
[View full profile](https://trustduck.click/business/costco)
---\n\nRankings update monthly as new reviews and verifications come in. Trust Duck Score is calculated independently -- scores reflect verified data, not paid placement.
June 2026▸
Top 3 All Industries Companies in Washington -- June 2026
These are the top 3 All Industries companies in Washington for June 2026, ranked by Trust Duck Score -- an independent 0-100 reliability score calculated from external reviews, LinkedIn presence, web presence, Google Maps verification, and community feedback on Trust Duck. No paid placements.
---
🥇 #1 -- Amazon (Trust Duck Score: 26/100)
Amazon is a global technology and e-commerce leader offering cloud computing via AWS digital streaming AI services and one of the world's largest online retail platforms serving hu... Based in Seattle, United States.
Why they rank here: verified LinkedIn presence; verified Google Maps listing; long-established domain (10+ years).
[View full profile](https://trustduck.click/business/amazon)
---
🥈 #2 -- Microsoft (Trust Duck Score: 26/100)
Microsoft Corporation is a global technology leader that develops and licenses software, hardware, and cloud services. Its products include Windows, Microsoft 365, Azure, Teams, Xb... Based in Redmond, United States.
Why they rank here: verified LinkedIn presence; verified Google Maps listing; long-established domain (10+ years).
[View full profile](https://trustduck.click/business/microsoft)
---
🥉 #3 -- Costco (Trust Duck Score: 14/100)
Costco Wholesale Corporation operates an international chain of membership warehouses offering high-quality merchandise at low prices to over 130 million cardholders worldwide thro... Based in Issaquah, United States.
Why they rank here: verified LinkedIn presence; verified Google Maps listing.
[View full profile](https://trustduck.click/business/costco)
---\n\nRankings update monthly as new reviews and verifications come in. Trust Duck Score is calculated independently -- scores reflect verified data, not paid placement.
May 2026▸
Top 3 All Industries Companies in Washington -- May 2026
These are the top 3 All Industries companies in Washington for May 2026, ranked by Trust Duck Score -- an independent 0-100 reliability score calculated from external reviews, LinkedIn presence, web presence, Google Maps verification, and community feedback on Trust Duck. No paid placements.
---
🥇 #1 -- Amazon (Trust Duck Score: 26/100)
Amazon is a global technology and e-commerce leader offering cloud computing via AWS digital streaming AI services and one of the world's largest online retail platforms serving hu... Based in Seattle, United States.
Why they rank here: verified LinkedIn presence; verified Google Maps listing; long-established domain (10+ years).
[View full profile](https://trustduck.click/business/amazon)
---
🥈 #2 -- Microsoft (Trust Duck Score: 26/100)
Microsoft Corporation is a global technology leader that develops and licenses software, hardware, and cloud services. Its products include Windows, Microsoft 365, Azure, Teams, Xb... Based in Redmond, United States.
Why they rank here: verified LinkedIn presence; verified Google Maps listing; long-established domain (10+ years).
[View full profile](https://trustduck.click/business/microsoft)
---
🥉 #3 -- Costco (Trust Duck Score: 14/100)
Costco Wholesale Corporation operates an international chain of membership warehouses offering high-quality merchandise at low prices to over 130 million cardholders worldwide thro... Based in Issaquah, United States.
Why they rank here: verified LinkedIn presence; verified Google Maps listing.
[View full profile](https://trustduck.click/business/costco)
---\n\nRankings update monthly as new reviews and verifications come in. Trust Duck Score is calculated independently -- scores reflect verified data, not paid placement.
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