As Scroggs says, it is unlikely to find a company to sponsor your training, however such things have happened. With the exception of a few large onshore operators, the only companies with those sort of resources would be offshore. And in a day when IR(H) sponsorships are hard to come by, asking for a PPL/CPL/IR(H) sponsorship...
If you are unable to find someone to sponsor you, a way to minimize costs is:
1. Convert your CAA PPL(H) to FAA PPL(H) through filling out the appropriate paperwork, or indeed side-step the CAA one altogether as it is not necessary to enter the modular CPL course.
2. Take 3 hours with an FAA CFI (certified flight instructor) then your FAA CPL(H) check ride.
3. This now reduces your CPL(H) modular training from 35 hours to "training as required"
Also investigate your theory requirements