MBDA is the manufacturer of the missile. Matra BAe Dynamics-UK is the main UK contractor and Matra BAe Dynamics-France the main French contractor. The two parts of the same company handled the international co-operation work, reducing project management overhead. Practically Storm Shadow/Scalp EG is based on the french Apache missile. The two parts of Matra BAe Dynamics act as separate Prime Contractors and hold the individual Storm Shadow and SCALP EG contracts for their respective national Governments.