Mac Dictionary’s definition:
of or relating to a corporation, esp. a large company or group : airlines are very keen on their corporate identity.• Law (of a company or group of people) authorized to act as a single entity and recognized as such in law.• of or shared by all the members of a group : the service emphasizes the corporate responsibility of the congregation.nouna corporate company or group.DERIVATIVEScorporately adverbORIGIN late 15th cent.: from Latin corporatus, past participle of corporare ‘form into a body,’ from corpus, corpor- ‘body.’
Who’s part of corporate?