| Anvil International |
| Aqua Pure Cuno |
| Amtrol |
| Armstrong Steam |
| Basco Shower Enclosures |
| Bell & Gossett |
| Bobrick Washroom |
| Bradley |
| Brady |
| BrassCraft |
| Central Brass |
| Charlotte Pipe And Foundry Co. |
| Chicago Faucets |
| Church Seats |
| Apollo Valves |
| Crane-Centerline Valves |
| Delta Faucet |
| Dixon |
| Elkay |
| Fernco |
| Franklin |
| General Wire |
| Halsey Taylor |
| Hamlet SS Compression Fittings |
| Haws Corporation |
| Hoffman Steam Specialty |
| Honeywell |
| In-Sink-Erator |
| Jakes-Evans |
| Kunkle |
| Little Giant Pump Co |
| Lochinvar |
| Maidomist |
| Mansfield |
| Maxitrol |
| McDonnell Miller |
| Milwaukee Tool |
| Modine |
| Moen |
| Northstar Water Treatment Systems |
| Oasis Tri-Palm International |
| Powers Process Controls |
| Rheem |
| Ridgid |
| Robert Mfg |
| Spirax Sarco |
| Sloan Valve Co |
| Spears Manufacturing |
| Spence |
| T&S Brass |
| H.O. Trerice |
| Victaulic |
| Viega Propress |
| Watts Regulator Co |
| Weil McLain |
| Woodford |
| Zoeller Pump Co |
| Zurn Inustries |
