| Business | Phone |
| Freestate Thermal Insultn Inc 215 Old Padonia Rd, Cockysvl Hnt Vly 21030 | (410) 667-0300 |
| Industrial Commercial Marine 232 Cockeysville Rd # C2, Cockysvl Hnt Vly 21030 | (410) 771-8070 |
| Insul-Temp Airco Inc Cockysvl Hnt Vly 21030 | (410) 628-6363 |