List of Certified TL 9000 Registrations
| TL1025 - Nortel - NQMS & Deliver & Support QMS |
| TL1944 - Nortel :MSS-Passport |
| TL2444 - Nortel, Carrier Networks |
| TL2467 - Shenyang Nortel Telecommunications Co., Ltd. |
| TL1025 - Nortel - NQMS & Deliver & Support QMS |
| TL1944 - Nortel :MSS-Passport |
| TL2444 - Nortel, Carrier Networks |
| TL2467 - Shenyang Nortel Telecommunications Co., Ltd. |