The situation is that we have 2 separate non-profit sport organizations. Org A has 1000 paid members and 10000 contacts. They are just now starting the process to switch to CiviCRM as their membership is in a large spreadsheet. CiviMember will likely be a key tool of Org A. I am on the technical committee of Org A.
Org B is a completely separate non-profit created specifically for an annual event that Org A is sponsoring financially next year, and with volunteers from Org A's list of contacts. CiviEvent will be a key tool of Org B. I am the president of Org B.
Currently, Org B has no list of contacts list at all as it is new. We want to keep some organizational separation between A and B, since they are both separate legal entities, and also because in the future there may be little or no need to link them. They both currently have separate web sites, FB pages, etc and both Orgs will be using WordPress.
There are some commercial membership software that allow "sub-accounts", that is, a parent organization with sub-organizations. I do not believe this to be the case with CiviCRM, but correct me if I'm wrong. Also, I don't see any built-in way to "link" 2 CiviCRM instances unless one does custom development, again correct me if I'm wrong.
My question is, if Org A has their own CiviCRM and Org B has our own CiviCRM installation, would it be best to manage volunteers for Org B's event in Org A's CiviCRM, or just maintain separate CiviCRMs and export those volunteers over to Org B's?
(or is there another solution I'm missing?)
EDIT: after doing a bit more research, I did find some info on WordPress Multi-site, but since both Orgs are hosted with different web hosts I don't think that will work for us, again correct me if I'm wrong.