| TTec Limited | Private company limited by shares | Live |
| Trinid TTEC Co., Limited | | Live |
| TTEC E&M ENGINEERING LIMITED | Private company limited by shares | Live |
| T-TEC Handels GmbH Limited | | Live |
| T-TEC CHINA (HK) CO., LIMITED | Private company limited by shares | Live |
| TTEC Innovation and Techology Co Limited | Private company limited by shares | Live |
| T-Tech Co., Limited | Private company limited by shares | Live |
| T-TECH Electronics Limited | Private company limited by shares | Live |
| T-TECH Engineering Company Limited | | Live |
| TTech Global Service Limited | Private company limited by shares | Live |
| T-TECH GROUP CO., LIMITED | Private company limited by shares | Live |
| T-TECH INDUSTRIAL LIMITED | Private company limited by shares | Live |
| TTECH (CHINA) INDUSTRIAL CO., LIMITED | Private company limited by shares | Live |
| T-TECH INTERNATIONAL LIMITED | Private company limited by shares | Live |
| TTech Technology Company Limited | Private company limited by shares | Live |
| T-teck HK Limited | | Live |