| Fuel Oil |
| Amrep, Inc. | http://www.amrep.com |
| Steam |
| Amrep, Inc. | http://www.amrep.com |
| Steam |
| Great Lakes Treatment Corp. | http://www.greatlakestreatment.com |
| Steam |
| The RectorSeal Corp. | http://www.rectorseal.com |
| Steam |
| Water Management Services Inc. | http://www.watermanagementservices.com |
| Water |
| Amrep, Inc. | http://www.amrep.com |
| Water |
| Carlon Meter Co., Inc. | http://www.carlonmeter.com |
| Water |
| Chemworks Filtration | http://www.chemworks.com |
| Water |
| Controlled Release Technologies, Inc. | http://www.cleanac.com |
| Water |
| Dow Chemical Co. | http://www.dow.com/versene/ |
| Water |
| Field Controls | http://www.fieldcontrols.com/ |
| Water |
| Great Lakes Treatment Corp. | http://www.greatlakestreatment.com |
| Water |
| The RectorSeal Corp. | http://www.rectorseal.com |
| Water |
| Water Management Services Inc. | http://www.watermanagementservices.com |