Yes, a company can prevent you from working for a competitor in Texas if you have signed a valid and enforceable noncompete agreement. What is a Non-Compete?Competition agreement is a restriction on an employee's ability to work in their particular field. For now, employers can keep using non-compete agreements in Texas but should prepare to adjust their practices if the legal challenges are resolved. If you plan to ask employees to sign Texas non-competition agreements, it is important to understand their limitations. Reach out for more info. Noncompete agreements are valid and enforceable in Texas as long as they meet state law requirements. Here is a guide to non-compete agreements in Texas. Noncompete agreements are contracts between employers and employees that restrict an employee's ability to work for a competitor or start a competing business. Texas law requires that a covenant not to compete must be part of or ancillary to an otherwise enforceable employment agreement.