| Business | Phone |
| American Knight Security Systm 460 S Broadway, Yonkers 10705 | (914) 378-0931 |
| Kls Inc 737 Yonkers Ave, Yonkers 10704 | (914) 709-1591 |
| Big Apple Security 132 Young Ave, Yonkers 10710 | (914) 779-2051 |
| Safeguard International Inc 3 Bristol Pl, Yonkers 10710 | (914) 771-9739 |
| Solarton Security Systems Inc Kneeland Ave, Yonkers 10705 | (914) 423-8600 |