| Company | Category | Area | Address | Web | Contact person | |
| KLEIN WOODWORKING INC | Woodworkers | Massachusetts | 574 BOSTON AVE, MEDFORD, Middlesex, Massachusetts, 02155-5539, USA | - | - | Dan Klein |
| KLEIN WRECKER SERVICE | automotive services | Texas | 16322 MORNING MIST DR, HOUSTON, Harris, Texas, 77090-4728, USA | - | - | - |
| KLEIN WRITING & EDITING SVCS | Legal Services Office | Nebraska | 9718 FREDERICK ST, OMAHA, Douglas, Nebraska, 68124-2735, USA | - | - | John Klein |
