| Business | Phone |
| Allen Electric Co 12545 Perrywood Ln, Dunkirk 20754 | (301) 812-1190 |
| Ballinger Electric Co Inc 10339 Southern Maryland Blvd, Dunkirk 20754 | (301) 855-7831 |
| Chesapeake Electrical Svc 3121 Ashwood Dr, Dunkirk 20754 | (410) 257-9405 |
| Control Technology Inc 11711 Rivershore Dr, Dunkirk 20754 | (301) 855-5375 |
| Discount Electric Inc 3231 Jones Rd, Dunkirk 20754 | (301) 812-1188 |
| Electri Tech 6421 Meadowlark Dr, Dunkirk 20754 | (301) 855-0507 |
| Fairfax Electric 3323 Smithville Dr, Dunkirk 20754 | (301) 855-5949 |
| Thomas Miller Electrical Contr 9155 Howes Rd, Dunkirk 20754 | (301) 855-6885 |