Spinner electrotecnica S.L. , head-quartered in Madrid, has started operations as early as 1940's with co-axial cables and connectors. The company has developed into multi national conglomerate with offices in several countries.

The company is into development of electronic components, systems, and services. Some of the products offered by the company include combiners and filters for terrestrial digital TV,   2 MW-Transmission Lines for JET ITER-like Ion Cyclotrone Resonance Heating Antenna Project, optical multi-channel rotary joint, and others.