I agree with Ersa, a fixed wing career would be my choice if I had to do it all again. And then just fly heli for fun maybe even do a bit of instructing.
Fixed wing aviation is still expanding, helicopter aviation is shrinking :'-(
But if you want to continue:
NL: Heliholland, don't know the company but they might keep you on for a bit of work. Helicentre in Lelystad don't do IR (yet) I think.
UK: Helicopter services in White Waltham or Castle Air in Gloucester
Norway; EHC
MCC: CRM europe in white waltham is a good company to do your MCC but most of the time, the company you're gonna work for will pay for it. Bit it could be the difference between your resume and another one.
A thing to consider is also, would the company where you do your IR give you work or how well are they connected with the Offshore/Onshore world ?