TELETEL SA ( is an EGSE & Test equipment supplier and EU leader in space on-board data networks (including SpaceWire, 1553, CAN, TTEthernet, SpaceFibre). TELETEL provides customer-tailored EGSEs & specialized SCOEs based on its iSAFT product line, as well as engineering services for on-board SW development. TELETEL has participated in various Space missions, including Euclid, JUICE, IASI-NG and MicroCarb. Main customers include ESA, Airbus Defence & Space, Thales Alenia Space, SYDERAL, SPACEBEL, TERMA, NEC etc.