- Apis Technical Training AB - Provides courses whether it be through in-house training, open courses or over the Internet.
- Ashmead Training ltd - Specialized in telecomms, datacomms and networking training course.
- Association of Telecom Management - Specialized in house telecom management needs including a telecom knowledge base, certification program and much more.
- Auditel Inc. - Offers telecom and phone bill audit analysis and training.
- Fiber Optic Tools and Training - Provides fiber optic training and certification for both specific manufacturers and industry organizations.
- Mpirical - Offers telecoms training, course or tutorial for professionals working in GSM, GPRS, UMTS, 3G, WiFi, WLAN, CAMEL and SS7.
- Protel Solution Ltd. - Offers telecom consulting and telecom training services along with a wide range of telecommunication services.
- Systegral - A telecom company providing telecom consulting, training, & telecom management software.
- Telecom Training Corporation - Offers training for telecommunications industry specialists.
- Telecom Training Systems Inc. - Offers telecomunications training and consulting.
- Teracom Training Institute - Provides telecommunications training, VoIP training seminars and courses.
- TRAŽ LLC - Telecom and Data Training on: 3G Wireless, CDMA, CDMA2000, Optical Networking, UMTS, MPLS, ATM, VoIP, SONET, Wirless LANs (WLANs).
- Widermind - Offers advanced technical training in mobile telecommunications, mainly GSM, GPRS and 3G such as UMTS.
- Wray Castle - Delivers training on technologies and their implementation.