| CompanyID | Company | Description | State |
| 1560 | Kebec Electrique | Industrial Commerical Electrictions. Used electrical parts sellers. | Quebec |
| 341 | KELSEY'S INDUSTRIAL CONTRACTORS | MACHINERY AND EQUIPMENT REPAIRS, INSTALLATIONS ,DISMANTLEMENTS FROM CONVEYORS TO CORRUGATORS.MACHINERY ALIGNMENTS.- MILLWRIGHTS, RIGGERS,FABRICATORS | PA |
| 398 | KENTROL PUMP SALES & SERVICE (DIV OF FW WEBB) | SELL, SERVICE AND REPAIR OF INDUSTRIAL PUMPS | MA |
| 294 | Kiewit Industrial Co | Power Plant Construction | KS |
| 2903 | Kingdom Builders | Demolition, Asbestos and Abatement | PA |
| 2444 | KJ Contracting Ltd | Electrical Surplus Sales | British Columbia |
| 300 | Kraftronics, Inc. | Motor Control Systems Integrator | FL |
