| Advanced Drainage Systems | www.ads-pipe.com |
| American Manufacturing Co Inc | www.americanonsite.com |
| Charlotte Pipe | www.charlottepipe.com |
| EZ Flow/Infiltrator Systems | www.infiltratorsystems.com |
| Geoflow Inc | www.geoflow.com |
| Jain Irrigation Inc. (Aquarius) | www.jains.com |
| Orenco Systems Inc | www.orenco.com |
| Roth Global Plastics | www.roth-global.net |