I am looking for an option in BP, where we could create a profile that it is used like a fanpage, people could follow institutions or personal brands, this brands have an exclusive profile inside BP.

I found this post refering to a plug in called BuddyPress Announce Group, that says it could work this way: http://wpmu.org/two-new-plugins-to-instantly-boost-buddypress-groups-participation/

Have someone try this out or have any additional suggestions that could help to standout more the personal brand page.