Oklahoma
| Company | Category | Area | Address | Web | Contact person | |
| ZWIEBEL RODMAN DB JANITOR | Building Maintenance Services | Oklahoma | 10500 NW 15TH PL, YUKON, Canadian, Oklahoma, 73099-5007, USA | - | - | Rodman Zwiebel |
| ZYMETX INC | Physicians & Surgeons Equip & | Oklahoma | 655 RESEARCH PKWY STE 554, OKLAHOMA CITY, Oklahoma, Oklahoma, 73104-6276, USA | www.zymetx.com | - | Norman R Proulx |