| Business | Phone |
| North Harbor Electric 137 Cypress Dr, Kings Park 11754 | (631) 724-2103 |
| Northeast Electrical Contr 110 Old Northport Rd, Kings Park 11754 | (631) 543-8118 |
| Palk Electric 46 Juniper Rd, Kings Park 11754 | (631) 360-7255 |
| Hedlund Electrical Corp 15 Enfield Ln, Kings Park 11754 | (631) 361-6717 |
| Harry J Hoffmann 18 Hoffman Dr, Kings Park 11754 | (631) 269-4537 |
| Rode Electric Inc 53 West Dr, Kings Park 11754 | (631) 269-1125 |
| Kings Park Electrical Inc 47 Woodvale Ave, Kings Park 11754 | (631) 269-2143 |
| Telsan Electric Inc 17 Sagebrush Ln, Kings Park 11754 | (631) 979-0508 |
| Up Light Electric Inc 11 Landview Dr, Kings Park 11754 | (631) 863-2339 |
| Usi Electric 128 Pulaski Rd, Kings Park 11754 | (631) 544-0400 |