| DB Metrol Solution Services Limited | Plot 2637 AA Rano Complex, Off Yakubu Gowon Crescent, Asokoro, Federal Capital Territory, Abuja. | Calibration | Verify Certificate and Scope | Withdrawn |
| Engineering Automation Technology Limited E&I Laboratory | No 5 Apagodo St., Off Ada George, Port Harcourt, Rivers State | Calibration | Verify Certificate and Scope | Active |
| Powerpro Company Limited | 142 Oba Akran Avenue, Ikeja, Lagos | Calibration | Verify Certificate and Scope | Active |
| SELFA (Nigeria) Limited | 10, Atunwa Street, Ikeja, Lagos State, Nigeria | Calibration | Verify Certificate and Scope | Active |
| SPIE SERVICES NIGERIA LIMITED | 55, TRANS-AMADI INDUSTRIAL LAYOUT, PORT HARCOURT, RIVERS STATE, NIGERIA | Calibration | Verify Certificate and Scope | Active |
| BV Global Limited | 56A, Bourdillon Road, Ikoyi, Lagos State, Nigeria | Calibration | Verify Certificate and Scope | Re-assessed (currently responding to NCs) |
| BIOLOGIX SUPPORT SERVICES LIMITED | 56C OLORUNLOGBON STREET, ANTHONY VILLAGE LAGOS, NIGERIA | Calibration | Verify Certificate and Scope | Active |
