- S. C. Johnson & Son, Inc
- Safco Products
- Samsung
- Sanford, L.P.
- SANYO Electric Co.,Ltd
- Satco Products, Inc
- Saunders Mfg. Co. Inc
- Schwan-STABILO Schwanhauber GmbH & Co.KG
- Sealed Air Corporation
- Seattle's Best Coffee, LLC
- Sentry Group
- Seventh Generation, Inc
- Sharp Electronics
- Shurtech Brands, LLC
- Sima Products Corporation
- Simple Green
- Smead Manufacturing Company
- Smith Corona
- Softalk Communications LLC
- SOLO
- Solo Cup Company
- Sparco Products
- Speedball Art Company
- Spicers Paper
- Spracht Products