| Business | Phone |
| Deak Technologies Inc 499 Van Brunt St # 8d, Brooklyn 11231 | (718) 522-4005 |
| Dynamic Health Laboratories 110 Bridge St, Brooklyn 11201 | (718) 858-0100 |
| Alliance Chemical Research Inc 1820 Flatbush Ave, Brooklyn 11210 | (718) 377-3030 |
| High Techinology Supply Corp 4311 13th Ave, Brooklyn 11219 | (718) 972-5074 |
| Tkl Research Inc 578 Driggs Ave, Brooklyn 11211 | (718) 782-5440 |
| New Medium Enterprises Inc 1510 51st St, Brooklyn 11219 | (718) 435-4111 |
| York Research Corp 2701 W 6th St, Brooklyn 11224 | (718) 266-0463 |