- AbTech Industries, Inc.
 - Scottsdale - Maker of polymer absorbents and passive skimmers for oil spill remediation and nonpoint source pollution prevention. - Allied Waste Industries
- Scottsdale - Provides collection, transfer, recycling, and disposal services for residential, commercial, and industrial customers.
- Liesch Companies
- Phoenix - From designing and overseeing the construction of a wastewater treatment plant to investigating and remediating soil and groundwater impacts.
- Wastewater Resources Inc.
- Scottsdale - Designs, manufactures, and installs turnkey water and wastewater treatment systems and components.
|
