Most of the individual CAMPA codes and other resources are copyrighted under the terms of the particular laboratory’s management and operations contract with the US Department of Energy. You will find in many cases that they are available free for nonprofit uses. The individual page or site for each one has links for download, documentation/support, and, where applicable, licensing information. Some (Warp, Synergia) are open source that can be downloaded directly from their website.
Incorporating these codes and resources into commercial software can be negotiated. Deeper collaborative and development work on a funds-in basis is also a possibility. In these situations, after your initial contact with the PI, the technology transfer offices of the participating institutions will be brought into the discussion: