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4G Americas
Universidad Tecnologica Nacional (Argentina)
King Abdullah University of Science and Technology (Saudi Arabia)
International Information Systems Security Certification Consortium, Inc. (United States)
Institute of Acoustics of the Chinese Academy of Sciences (China)
Polytechnic School Bucharest Association [SIO] (Romania)
Telecommunication Industry Association (TIA)
Cellular Operators Association of India (COAI) [OTHER ENTITY] (India (Republic of))
Orange (France)
Dynamic Spectrum Alliance (International)
Forum of Incident Response and Security Teams (FIRST)
KT Corporation
University of New Hampshire Interoperability Laboratory (United States)
Tata Communications Ltd (India)
Hankuk University of Foreign Studies (Korea (Rep. of))
Universidad Nacional de Río Negro (Argentina)
Amalgamated Telecom Holdings Limited (ATH) (Fiji)
Symantec Corporation [SIO] (United States of America)
Kanazawa Institute of Technology (Japan)
Beijing University of Posts and Telecommunications (China)
JandJ Group (South Africa)
Kwame Nkrumah University of Science and Technology (Ghana)
CDMA Development Group, Inc.
Réseaux IP Européens Network Coordination Centre (RIPE NCC)
Tunisie Télécom
Kuwait Telecommunication Company (VIVA) (Kuwait)
SYSOCO (France)
Grenoble Ecole de Management (France)



GEW Technologies (Pty) Ltd.

GEW Technologies (Pty) Ltd, (previously known as Grintek Ewation) is a South African system engineering company established in 1968 and now a major supplier of innovative communication intelligence, spectrum monitoring and security products throughout the world. The company is privately owned with two main shareholders, the Airbus Group and Kunene Finance Company.
GEW Technologies’ expertise lies in the conceptualisation, specification, development, implementation and support of systems for clients including government institutions, spectrum management authorities and national defence forces.
GEW SpecMon ( is a business unit within GEW Technologies (Pty) Ltd and focuses on ITU spectrum monitoring solutions. Spectrum monitoring systems and products are in service with the Communication Authority of South Africa (ICASA) and many other spectrum management authorities worldwide.

CategoriesManufacturers ; Software ; International Organisations
Based inSouth Africa (Republic of)
DomainsBroadcast ; Mobile ; Fixed ; Broadband
ITU Global DirectoryGEW Technologies (Pty) Ltd.
Mr Carel Van Der Merwe

Born on 12 December 1956. Obtained the degree Hons. B. Eng (Electronic) from Stellenbosch University in 1979. Was assigned to Siemens in Münich from 1984 to 1985 for a joint development of a multichannel interception system. Appointed in 1996 in the current position of managing director of GEW Technologies.