Meilner Mechanical Sales, Inc. represents the following companies:
| Adamson Global Tech. | Tanks, Indirect Water Heaters, Heat Exchangers, and Fuel Storage Systems |
| BFS Industries | Deaerators, Boiler Feed Units, Oil Pump Sets and Accessories |
| Columbia Boiler | Steel Boilers & Indirect Water Heaters |
| Gasmaster Ind. Inc. | Ultra High Efficiency up to 99.8% Stainless Steel Boilers for Hydronic Heating, Domestic Hot Water and Pool Heating |
| L.E.S. Inc. | Scotch Box and Modular Steam or Water Heating Boilers |
| Raypak Inc. | Ultra High Efficiency Copper Fin Tube Boilers for Hydronic Heating, Domestic Hot Water and Pool Heating |
| Superior Boiler Works | Packaged Steam and Hot Water Fire Tube Boilers |
| Sussman | Electric Boilers & Accessories |
| Thermal Fluid Systems, Inc. | Thermal Fluid Heaters and Hot Oil Systems |
| UBW Boilers Inc. | Five Pass Bent Water Tube, Steam or Water Boilers |
| Webster Engineering | Forced Draft Burners 400 MBH to 200,000 MBH |
