Do you know why EU has a history of outsourcing core systems to non-EU entities?

Is it just because it is (or was) more cost effective? I mean EU has tons of talent, so it's hard for me to believe it's a lack of resources

Maybe it is too costly or too difficult to start up in the EU?

I haven't done too much research myself. I don't know the stories of anyone who tried to compete against palantir/google/boeing/etc

It is quite puzzling to me though as to why.

We have plenty of talent here to build stuff ourselves, and frequently do.

If I’m honest I’d guess lobbying and/or trade deals where we often agree to buy smth from the US.

A recent one is NHS (UK healthcare system) and Palantir, which makes no sense to hand over core medical data to an outsider. That seemed a clear lobbying case.

If this is true, who is the EU-equivalent of Palantir?