What Organization markup is for
It describes your company or organization: official name, logo, website, contact details and the social profiles that belong to you. Google can use it for the logo and details in knowledge panels, and to tell your official profiles apart from look-alikes.
Google has no required properties here, but the more you fill in, the clearer the picture.
Logo and profile tips
The logo should be at least 112×112 pixels, on a plain background, and at an address Google can crawl. In social profiles (sameAs), list the full addresses of the accounts you control, one per line.
Where to put it
Add it once, on your homepage. If you're a local business with a street address that customers visit, use the Local Business generator instead.