| Firms |
Nadcap Scope of Accreditation |
| Kamijima Heat Treatment Co., Ltd [AMATERAS] | Heat Treating |
| Cosmo Seiki Co., Ltd. | Conventional Machining as a Special Process (CMSP) |
| KIGUCHI TECHNICS INC. | Materials Testing Laboratories, Non Metallic Materials Testing |
| Metal Technology Co., Ltd | Heat Treating |
| Mimasu Industries Co., Ltd | Heat Treating*, Nondestructive Testing |
| Nippon Precision Casting Corp. [AMATERAS] | Welding, Heat Treating, Nondestructive Testing |
| Sugasawa Seiki Co., Ltd | Nondestructive Testing |
| Tamayakin Co., Ltd | Heat Treating |
| Yoshimasu Seisakusho Co., Ltd [AMATERAS] | Nonconventional Machining, Welding, Heat Treating, Nondestructive Testing |