Hartmann Group | 5,789 followers on LinkedIn. The Hartmann Group is an independent, family-owned shipping company, operating worldwide. Our business is based on several foundations: ship owning, full technical and commercial ship management, as well as crewing and training of seafarers. All in all, the companies of the group employ close to 5,000 employees and operate a fleet of about 150 vessels – gas carriers, product tankers, bulk carriers, pneumatic cement carriers, container ships and multi-purpose vessels.