Texas MESA Application to Do Business is an application form that employers in Texas must complete in order to become a Multiple Employer Welfare Arrangement (MESA). A MESA is a type of self-funded employee health plan that is established and maintained by two or more employers to provide health coverage to their employees. The Texas Department of Insurance (TDI) requires employers to submit a Texas MESA Application to Do Business if they plan to set up a MESA. The application contains information about the employers involved in the MESA, a detailed description of the services to be provided, and a financial statement. The two types of Texas MESA Application to Do Business are the Small Employer MESA Application and the Non-Small Employer MESA Application. The Small Employer MESA Application is for employers with 50 or fewer employees and the Non-Small Employer MESA Application is for employers with more than 50 employees.