Tex. Insurance Code § 82.002

(a) This chapter applies to each company regulated by the commissioner, including:

(1) a domestic or foreign, stock or mutual, life, health, or accident insurance company;

(2) a domestic or foreign, stock or mutual, fire or casualty insurance company;

(3) a Mexican casualty company;

(4) a domestic or foreign Lloyd's plan insurer;

(5) a domestic or foreign reciprocal or interinsurance exchange;

(6) a domestic or foreign fraternal benefit society;

(7) a domestic or foreign title insurance company;

(8) a stipulated premium insurance company;

(9) a nonprofit legal service corporation;

(10) a health maintenance organization;

(11) a statewide mutual assessment company;

(12) a local mutual aid association;

(13) a local mutual burial association;

(14) an association exempt under Section 887.102;

(15) a nonprofit hospital, medical, or dental service corporation, including a company subject to Chapter 842;

(16) a county mutual insurance company; and

(17) a farm mutual insurance company.

(b) This chapter also applies to:

(1) an agent of an entity described by Subsection (a); and

(2) an individual or a corporation, association, partnership, or other artificial person who:

(A) is engaged in the business of insurance;

(B) holds an authorization; or

(C) is regulated by the commissioner.

(c) The commissioner's authority under this chapter applies to each form of authorization and each person or entity holding an authorization.