(4) "Firm" means any business, person, partnership, organization, association, corporation, contractor, subcontractor, or individual.

(7) "Firm" means any partnership, association, or other unincorporated business organization.

(2) "Firm" means any person, proprietorship, partnership, corporation, association, or any other legal entity which practices public accountancy.

(4.4) "Firm" means any business entity, including, but not limited to, a corporation, partnership, limited liability company, or sole proprietorship.

(11) "Firm" means a type of distribution service which ordinarily is not subject to interruption or curtailment.