- Institution of Electrical Engineers. Electronics Division (100)
- British Computer Society (18)
- Institution of Electrical Engineers. Computing & Control Division (16)
- Convention of National Societies of Electrical Engineers of Western Europe (8)
- Institution of Electronic and Radio Engineers (8)
- Institute of Physics (Great Britain) (5)
- International Conference on Image Processing and its Applications (5)
- IEE National Conference on Telecommunications (4)
- International Conference on Antennas and Propagation (4)
- International Conference on Automotive Electronics (4)
- International Conference on Software Engineering for Telecommunication Switching Systems (4)
- IEE International Conference on Artificial Neural Networks (3)
- IEEE Aerospace and Electronic Systems Society (3)
- Institute of Electrical and Electronics Engineers. United Kingdom and Republic of Ireland Section (3)
- Institute of Mathematics and Its Applications (3)
- Institution of Mechanical Engineers (Great Britain). Automobile Division (3)
- International Conference on Electromagnetic Compatibility (3)
- International Union of Radio Science (3)
- Acoustical Society of America (2)
- Audio Engineering Society (2)
- European Conference on Electronic Design Automation (2)
- European Conference on Optical Communication (2)
- Institute of Electrical and Electronics Engineers (2)
- Institution of Electrical Engineers. Power Division (2)
- Institution of Electrical Engineers. Science, Education, and Technology Division (2)
- International Conference Radar (2)
- International Conference on Command, Control, Communications, and Management Information Systems (2)
- International Conference on Computation in Electromagnetics (2)
- International Conference on Electronic Engineering in Oceanography (2)
- International Conference on HF Radio Systems and Techniques (2)
- International Conference on Holographic Systems, Components, and Applications (2)
- International Conference on Private Switching Systems and Networks (2)
- International Conference on Radio Spectrum Conservation Techniques (2)
- International Conference on Satellite Systems for Mobile Communications and Navigation (2)
- International Conference on Secure Communication Systems (2)
- International Maritime Satellite Organization (2)
- International Symposium on Antennas and Propagation (2)
- Associazione elettrotecnica ed elettronica italiana (1)
- British Kinematograph Sound and Television Society (1)
- British Pattern Recognition Association (1)
- Conference on Communications Equipment and Systems (1)
- Conference on Communications--an Industry on the Move (1)
- Conference on Photoelectronic Imaging (1985 : London, England?) (1)
- Conference on Telecommunications, Radio, and Information Technology (1)
- Confernce on HF Communication Systems and Techniques (1)
- Deutsche Forschungs-und Versuchsanstalt für Luft- und Raumfahrt (1)
- Electronic Engineering Association (1)
- European Association for Signal Processing (1)
- European Conference on Circuit Theory and Design (1)
- European Conference on Integrated Optics (1)
- European Conference on Satellite Communications (1)
- European Solid State Circuits Conference (1)
- IEE European Conference on Mobile and Personal Communications (1)
- IEE National Conference on UK Telecommunications Networks--Present and Future (1)
- Institute of Physics (1)
- Institution of Electrical Engineers. Communications Division (1)
- Institution of Electrical Engineers. Management and Design Division (1)
- Institution of Mathematics and its Applications (1)
- International Conference on 'Advanced A-D and D-A Conversion Techniques and their Applications' (1)
- International Conference on Advanced Infrared Detectors and Systems (1)
- International Conference on Advanced Infrared Detectors and Systems (1st : 1981 : Institution of Electrical Engineers) (1)
- International Conference on Broadband Services, Systems and Networks (1)
- International Conference on Data Transmission (1)
- International Conference on Electrical Safety in Hazardous Areas (1)
- International Conference on Electronic Image Processing (1)
- International Conference on Frequency Control and Synthesis (1)
- International Conference on HF Communication Systems and Techniques (1)
- International Conference on Measurements for Telecommunication Transmission Systems (1)
- International Conference on Microwave Tubes in Systems, Problems and Prospects (1)
- International Conference on Mobile Radio and Personal Communications (1)
- International Conference on Optical Fiber Sensors (1)
- International Conference on Radio Receivers and Associated Systems (1)
- International Conference on Results of Tests and Experiments with the European OTS Satellite (1)
- International Conference on Rural Telecommunications (1)
- International Conference on Satellite Systems for Mobile Communications and Navigation (5th : 1996 : Institution of Electrical Engineers, London, England) (1)
- International Conference on Storage and Recording Systems (1)
- International Conference on Telecommunication Transmission (1)
- International Conference on Telecommunication Transmission into the Digital Era (1)
- International Conference on the History of Television--from Early Days to the Present (1986 : Institution of Electrical Engineers) (1)
- International Conference on the ISDN and its Impact on Information Technology (1)
- International Conference on the Impact of High Speed and VLSI Technology on Communication Systems (1)
- International Network Planning Symposium (1)
- International Telecommunications Energy Conference (1)
- Joint British Committee for Stress Analysis (1)
- Joint Conference on Lasers and Opto-Electronics (1)
- Koninklijk Instituut van Ingenieurs (Netherlands). Afdeling Sectie Informatietechniek (1)
- Radar 87 (1)
- Radar-82 (1)
- Royal Institute of Navigation (Great Britain) (1)
- Société des électriciens et des électroniciens (1)
- Svenska elektroingenjörers riksförening (1)
- Telecommunications Users' Association (Great Britain) (1)