| Business | Phone |
| Airtek Environmental Corp 39 W 38th St # 12, New York 10018 | (212) 768-0516 |
| American Testing Corp 309 5th Ave # 506, New York 10016 | (212) 683-0866 |
| Associated Analytical Labs 51 E 42nd St # 1210, New York 10017 | (212) 682-2544 |
| Emsl Analytical Inc 307 W 38th St, New York 10018 | (212) 290-0052 |
| Lance Prosthetics Ltd 121 W 27th St, New York 10001 | (212) 924-8181 |
| Varley Textile Assoc 19 W 36th St # 10, New York 10018 | (212) 840-7023 |
| Y Schmidt Assayers 36 W 47th St # 1202, New York 10036 | (212) 719-9535 |