| Business | Phone |
| Adam's Heating & Air Cond 10630 Riggs Hill Rd # B, Jessup 20794 | (301) 604-5390 |
| Air Specialties Inc 10545 Guilford Rd, Jessup 20794 | (301) 497-4100 |
| Airstar Corp 8869 Mission Rd, Jessup 20794 | (301) 490-7446 |
| Hardesty Inc 10620 Riggs Hill Rd # F, Jessup 20794 | (410) 792-2288 |
| Maloney Aire Jessup 20794 | (410) 792-7404 |