I believe the last Bristow Helicopter cadets were trained for CAA licences at Helicopter Adventures (try them).
A major contract was lost before their training was completed so on graduation they were let go.....
Very soon after they were picked up by Scotia because of that very same contract.
I don't believe Scotia have sponsored anyone from zero time only for instrument and type ratings.
There is currently very little employment or sponsorship being conducted by either of the UK North Sea companies.