From Florida State Statute 471.023 (emphasis mine):
471.023 Certification of partnerships and corporations.
(1) The practice of, or the offer to practice, engineering by licensees offering engineering services to the public through a business organization, including a partnership, corporation, business trust, or other legal entity or by a business organization, including a corporation, partnership, business trust, or other legal entity offering such services to the public through licensees under this chapter as agents, employees, officers, or partners is permitted only if the business organization possesses a certification issued by the management corporation pursuant to qualification by the board, subject to the provisions of this chapter. One or more of the principal officers of the business organization or one or more partners of the partnership and all personnel of the business organization who act in its behalf as engineers in this state shall be licensed as provided by this chapter. All final drawings, specifications, plans, reports, or documents involving practices licensed under this chapter which are prepared or approved for the use of the business organization or for public record within the state shall be dated and shall bear the signature and seal of the licensee who prepared or approved them. . .