FONEMA: The Fast Omni-directional Non-scanning Energy Mass Analyser) instrument is one of a package of instruments included on the orbiter payload to study the solar wind interaction with Mars. MSSL is the PI institute for the FONEMA instrument in collaboration with MFFUK (Czech Republic), who are supplying the High Voltage units and the EGSE, CESR (France) and STIL (Ireland), who are providing the DPU, IKI (Russia) and OKB (Kirghizia).