TELKOM's Business Unit consisted of Division, Centre, Foundation and Subsidiary company as follows:
1. Division of Long Distance 2. Carrier & Interconnection Service Center 3. Division of Multimedia 4. Division of Fixed Wireless Network 5. Enterprise Service Center 6. Access Division 7. Maintenance Service Center 8. Training Center 9. Carrier Development Support Center 10. Management Consulting Center 11. Construction Center 12. I/S Center 13. R&D Center 14. Community Development Center (CDC)
Foundations:
1. Dana Pensiun (Dapentel) 2. TELKOM Educational Foundation (YPT) 3. Yayasan Kesehatan 4. Yayasan Sandhykara Putra Telkom (YSPT)
PT Infomedia Nusantara (Infomedia) : Information Service
4.
PT. Telekomunikasi Indonesia Internasional : International Telecommunication Services, Investment & Strategic Partnership and Project Management & Consultancy