EM Microelectronic, based in Marin, La Tène near Neuchâtel in Switzerland, is a developer and semiconductor manufacturer specialized in the design and production of ultra low power, low voltage integrated circuits for battery-operated and field-powered applications in consumer, automotive and industrial areas.

[3][4] EM Microelectronic has a design center at its headquarters in Marin, in the French speaking part of Switzerland near the city of Neuchâtel.

EM manufactures not only standard circuits and ASICs, but also systems and modules for applications such as access control, radio frequency identification, mobile phones, mass-market consumer appliances, alarm and security systems, utility and heating meters, sensor signal processing, controlling, car immobilization, electronic automotive subsystems and many more.

EM Microelectronic designs and develops Bluetooth Low Energy products such as the EM9304,[6] aimed at smallest footprint and lowest power consumption applications.

EM Microelectronic developed UHF RFID ICs in the early 1990s and launched the first mass retail deployment in 2003, with Marks & Spencer.