Some of the many companies that rely on hardware from Phelps Company:
- Woodstone Architectural Windows and Doors
- Reilly Windows and Doors
- Tischler und Sohn USA
- Marvin Windows
- Zeluck Inc. Architectural Wood Windows and Doors
- Architectural Components
- Artistic Doors and Windows
- Dynamic Windows and Doors
- Luxbaum Architectural Doors and Windows
- Parret Windows and Doors
- Grabill Windows and Doors
- Hirschman Windows and Doors
- J S Benson Woodworking and Designs
- Little Harbor Window
- Fenetres MQ
- Kolbe and Kolbe
and many more ...
