- Amway: Amway Inc = Multi-Level
- Aquasana: Sun Water Systems, Inc = Factory Direct
- Brita: Clorox Bleach Co. = Retail
- Culigan: U.S. Filter/ Pentair = Retail
- Kenmore: Sears = Retail
- Multi-Pure: MultiPure, Inc. = Multi-Level
- PUR: Recovery Engineering, Inc. = Retail
- Seagull IV: General Ecology = Retail