core + attic (Attic Area): these terms have been either depricated from the core or extentions, or removed from pending as not accepted into the full vocabulary.

hostingOrganization

Canonical URL: http://schema.org/hostingOrganization

Thing > Property > hostingOrganization

The organization (airline, travelers' club, etc.) the membership is made with.

Usage: Between 10 and 100 domains
Values expected to be one of these types
Organization
Used on these types
ProgramMembership

Schema Version 3.2