- 3M Canada 3M Canada
- Absolute H20 Absolute H20
- Acuva Technologies Inc. Acuva Technologies Inc.
- BII Boshart Industries Inc. BII Boshart Industries Inc.
- Canature North America Inc. Canature North America Inc.
- CB Supplies CB Supplies
- Clack Corporation Clack Corporation
- Environmental Laboratories, Inc. Environmental Laboratories, Inc.
- Excalibur Water Excalibur Water
- Excelight Excelight
- Flexcon Industries Flexcon Industries
- Franklin Electric Franklin Electric
- Genesis H2O Genesis H2O
- Grundfos Grundfos
- Hach Hach
- Hanna Instruments Hanna Instruments
- Haynes Manufacturing Company Haynes Manufacturing Company
- HM Digitial Inc. HM Digitial Inc.
- Hydrotech - Pura Hydrotech - Pura
- John Guest John Guest
- LaMotte Company LaMotte Company
- Liberty Pumps Liberty Pumps
- Little Giant - Franklin Electric Little Giant - Franklin Electric
- Luminor Environmental Luminor Environmental
- Omnipure Filter Company Omnipure Filter Company
- Payne USA Payne USA
- Pentair Inc. Pentair Inc.
- Precision Laboratories Precision Laboratories
- Pro Products LLC Pro Products LLC
- Silver Lake Research Silver Lake Research
- Stenner Pump Company Stenner Pump Company
- TankPAC Industries Co. Ltd. TankPAC Industries Co. Ltd.
- Thomas Products Ltd Thomas Products Ltd
- Ultra Sun Technologies Inc. Ultra Sun Technologies Inc.
- UV Dynamics UV Dynamics
- UV Pure Technologies UV Pure Technologies
- Viqua Viqua
- Wahl Water Wahl Water
- Waterite Inc Waterite Inc
- Watts Water Technologies Watts Water Technologies
- Wedeco Wedeco
- Wyckomar Wyckomar