| Business | Phone |
| Curtainwall Design & Cnsltng 1036 Circle Dr, Sykesville 21784 | (410) 552-9370 |
| Rtn Midatlantic Grp Po Box 1205, Sykesville 21784 | (410) 549-0886 |
| S Harman & Assoc Inc 725 Buckhorn Rd, Sykesville 21784 | (410) 795-9296 |
| Tms Assoc 990 Day Rd, Sykesville 21784 | (410) 489-4182 |
| Triangle Associates 21 W Obrecht Rd, Sykesville 21784 | (410) 465-5516 |