| Business | Phone |
| At&T Cits 3520 Advocate Hill Dr, Jarrettsville 21084 | (410) 692-9730 |
| East Coast Merchandisers Inc 4123 Manor View Ct, Jarrettsville 21084 | (410) 557-6611 |
| Kanaras Bros Inc Jarrettsville 21084 | (410) 692-6610 |
| Mdsi Mobile Data Solutions Inc Jarrettsville 21084 | (443) 831-3709 |
| Mel Kiper Enterprises Inc Jarrettsville 21084 | (410) 817-9917 |
| Northern Precinct Non Emrgncy 3724 Norrisville Rd, Jarrettsville 21084 | (410) 692-7880 |
| Southern States Shawsville Br 4551 Norrisville Rd, Jarrettsville 21084 | (410) 692-2200 |
| Weinstock Bluemel Inc 2740 Greene Ln, Jarrettsville 21084 | (410) 557-6613 |