| Business | Phone |
| Riantong Trading Inc 165 Elizabeth St # 1, New York 10012 | (212) 431-5125 |
| Sil Thread Inc 257 W 38th St, New York 10018 | (212) 997-8949 |
| Sil Thread Inc 315 W 39th St, New York 10018 | (212) 244-0001 |
| Thread Source Inc 22 Howard St, New York 10013 | (212) 941-7788 |
| Thread Trimmings & Supplies 153 Lafayette St, New York 10013 | (212) 226-8404 |