Massachusetts
| Company | Category | Area | Address | Web | Contact person | |
| JACK WALKER REALTOR | Real Estate | Massachusetts | 95 CHURCH ST, WHITINSVILLE, Worcester, Massachusetts, 01588-1415, USA | - | - | Jack Walker |
| JACK WITTENBERG MD | Physicians & Surgeons | Massachusetts | 55 FRUIT ST, BOSTON, Suffolk, Massachusetts, 02114-2621, USA | - | - | Jack Wittenberg |