- MTN Nigeria
- Celtel Nigeria
- Globacom
- Nigerian Mobile Telecommunications Ltd. (Mtel)
- Nigerian Telecommunications Ltd. (Nitel)
- Visafone Nigeria
- Etisalat Nigeria
- Intercellular Nigeria Plc.
- MTS First Wireless
- VGC Communications Ltd.
- Rainbownet Limited
- Monarch Communications Ltd.
- Independent Telephone Network Ltd. (ITN)
- 21st Century Limited
- Topcom Nigeria
- Reliance Telecomm. Ltd. (Reltel)
- Peace Global Sat. Comm. Ltd.
- Allied Standard Bond Coy. Ltd.
- Cell Communications Ltd. (Cellcom)
- Prest Cable & Satelite TV Systems Ltd. (Prestel.)
- ELTEL Communications Ltd.
- Multilinks
- Webcom
- Siotel
- Starcomms
- Imperial Telecoms
- Discomm
- O'dua Telecoms
- Swift Networks
- IPNX
- Broadband Technologies
- Project Exchange
- Snytel Communications
- America Wireless Broadband Networks
- Yemshiba Telephone Networks
- GTS- Infotel Nigeria
- General Telephone & Electronics (GTE)
-
Ultima Communication Limited
-
Alpha Technology
-
NAVAO


