I have ask, does your company pay for maintenance for Gibbs every year?
I ask because IVCAM is not perpetual, if you don't pay you loose access to using the software as it is now subscription based!
SolidWorks is still perpetual, so it runs forever at the version you purchased and it now has it's own CAM, but it is technically CAMWorks.
you also have other CAM that are gold partners that run inside of it too. MasterCAM, BobCAM, SolidCAM (as mentioned) plus some that are not gold anymore cause competitors bought them aka HSMWorks which IVCAM and Fusion360 CAM is based on, but you have to by Fusion 360 to get it as it is a free entitlement.
something to think about
also most if not all CAM software's take native SW files