Ability to choose company from which an available resource if offered

I belong to three companies in GovWin: Kelly Maze, LLC, my freelance writing business; the Air Force Reserve because I'm a reservist; and Deltek because it gives me increased access to the site which is useful when I'm writing GovWin documentation (I'm not technically a Deltek employee). The problem, however, is that when I post an available resource (my writing services) the post shows that Deltek is offering the resource, not Kelly Maze, LLC. I don't see the option to choose from multiple companies when I create the resource. I believe the option to choose from various companies is available when posting an opportunity. Can it be added to the offer a resource function, please?