| Business | Phone |
| American Interiors Inc 948 E 92nd St, New York 10005 | (212) 495-5000 |
| Donaldson Acoustic Co Inc 350 5th Ave, New York 10118 | (212) 286-1122 |
| Donaldson Acoustics 666 3rd Ave, New York 10017 | (212) 953-1537 |
| Duncan Interiors Inc 237 W 35th St # 604, New York 10001 | (212) 239-2870 |
| Rja Systems 177 E 75th St, New York 10021 | (212) 452-0066 |
| Sia Acoustics 257 Park Ave S # 303, New York 10010 | (212) 387-9105 |
| Superior Acoustics 15 E 26th St, New York 10010 | (212) 685-4681 |
| National Acoustics Inc 515 W 36th St, New York 10018 | (212) 695-1252 |
| EuroBuild Construction, Inc. 1133 Broadway - Suite 706, New York 10010 | (212) 361-9147 |