| Business | Phone |
| Tlc Electric Inc 72 Midway Rd Nw, Marietta 30064 | (770) 423-9400 |
| Cobb Electric Membership Corp 1000 Emc Pkwy Ne, Marietta 30060 | (770) 429-2100 |
| Cobb Electric Membership Corp 1260 Cobb Pkwy N, Marietta 30062 | (770) 795-7000 |
| Oglethrope Power Corp 827 John Ward Rd Sw, Marietta 30064 | (678) 354-6118 |