Ariz. Rev. Stat. § 32-1151
It is unlawful for any person, firm, partnership, corporation, association or other organization, or a combination of any of them, to engage in the business of, submit a bid or respond to a request for qualification or a request for proposals for construction services as, act or offer to act in the capacity of or purport to have the capacity of a contractor without having a contractor's license in good standing in the name of the person, firm, partnership, corporation, association or other organization as provided in this chapter, unless the person, firm, partnership, corporation, association or other organization is exempt as provided in this chapter. Evidence of securing a permit from a governmental agency or the employment of a person on a construction project shall be accepted in any court as prima facie evidence of existence of a contract.
A.R.S. § 32-1151