@Eoin Sorry had not seen your question. Hard to answer, maybe this booklet can help you (it is in English) and if you search for missiles you'll find 7 companies. (I myself would add GKN/Fokker to this list with a long history on missile parts.)

https://www.nidv.eu/wp-content/uploads/2023/03/VM_0469_Industry_guide_NIDV_2023_3_WEB.pdf