| S.no | Company Name | Founded | Country |
|---|---|---|---|
| 1 | Johnson Bros. Roll Forming Co. | USA | |
| 2 | MetalTek International | USA | |
| 3 | Flex-Weld Inc. | USA | |
| 4 | EagleBurgmann EJS | USA | |
| 5 | Senior Flexonics Pathway Inc. | USA | |
| 6 | Triad Bellows Design & Manufacturing Inc. | USA | |
| 7 | U.S. Bellows Inc. | USA | |
| 8 | International Bellows | USA | |
| 9 | Keystone Rubber Corp. | USA | |
| 10 | Bellow Manufacturing & Research Inc. | USA | |
| 11 | Piping Technology & Products Inc. | USA |
