| Business | Phone |
| Aec Motions Star Inc 1325 Wiley Rd # 162, Schaumburg 60173 | (847) 884-6730 |
| Aka Electric Inc 1682 Wright Blvd, Schaumburg 60193 | (630) 933-8500 |
| All Bright Electric Co 816 Shell Ct, Schaumburg 60193 | (847) 891-3940 |
| All City Electric Schaumburg 60173 | (847) 310-4788 |
| All Industrial Electric Inc 432 E State Pkwy 129, Schaumburg 60173 | (847) 885-9600 |
| All Service Electric Co 816 Winfal Dr, Schaumburg 60173 | (847) 619-5958 |
| American Electric Construction 620 Pratt Ave N, Schaumburg 60193 | (847) 301-1790 |
| Four Star Electric Inc 622 Pratt Ave N, Schaumburg 60193 | (847) 301-2220 |
| Enterprise Electric Inc 1941 Wright Blvd, Schaumburg 60193 | (847) 812-7438 |
| Elston Electric 107 Bent Tree Ln, Schaumburg 60195 | (847) 885-6043 |
| Economical Electrical Po Box 957362, Schaumburg 60195 | (847) 885-0592 |
| Clar Electric Inc 302 Pleasant Dr, Schaumburg 60194 | (847) 952-8899 |