| Business | Phone |
| Abest Communications 32 Taaffe Pl, Brooklyn 11205 | (718) 599-0053 |
| Altech Electronics Inc 927 Mcdonald Ave, Brooklyn 11218 | (718) 435-2281 |
| Harris Corp 77 Clinton St, Brooklyn 11201 | (718) 246-0462 |
| International Communications 372 Wilson Ave, Brooklyn 11221 | (718) 574-7000 |
| Comtran Associates Inc 1961 Utica Ave, Brooklyn 11234 | (718) 531-7676 |
| Portronix Communications Inc 2831 Cropsey Ave, Brooklyn 11214 | (718) 372-2900 |
| Rafaelito Radios Corp 853 4th Ave, Brooklyn 11232 | (718) 832-3535 |