What type of business acts as an alarm systems company under Texas law?

In Texas law, an alarm systems company is specifically defined as a business that engages in the selling, installing, or servicing of alarm systems. This includes a wide range of services related to security alarms, such as burglar alarms, fire alarms, and other monitoring technologies designed to protect property and people. The focus of such businesses is on providing security solutions, which require specialized knowledge and adherence to regulatory standards concerning safety and security measures.

The other options do not pertain to the security industry. For instance, a company that sells insurance primarily deals with financial risk management and has no involvement with alarm systems. A company providing interior design services focuses on aesthetics and spatial planning, which is unrelated to security measures. Similarly, a delivery service operates in logistics and transportation, without any connection to alarm system provision or installation. Thus, the defining characteristic of an alarm systems company under Texas law is its primary function of handling alarm systems, making this option the most accurate.