A platform for company blogs?

Question

Blogs

Greetings habralyudey!
I am interested in a ready-made platform or framework or something else that meets the following requirements:
1. Companies post on their pages a brief summary of their activities (logo, profile, mission, director's photo, etc.)
2. Each company has a blog where they can post, plus it all comes down to a common feed.
In some way, an analogue of Habr.
In the future, there may be movements towards posting vacancies, socialization, integration with all sorts of Facebook tweeters, etc. That is, the platform must be expandable.
Well, it is desirable that all this be inexpensive (if the service is a few dollars a month) or be open source.
Does anyone have any idea?

Answer 1

If you are interested in an analogue of Habr, then you need LiveStreet (http://livestreet.ru/)

Answer 2

"Companies" plugin for LS: http://livestreetcms.com/addons/view/43/

Answer 3

Drupal is a framework for just that,
both for now and for the future. bends in any direction

Answer 4

+1 for LiveStreet

Answer 5

Look in the LiveStreet add-ons, there's something for the Company blogs. no proof link unfortunately.
+1 for LiveStreet.