ADT Inc. is engaged in providing of security, interactive, and smart home solutions serving residential and small business customers in the United States. The Company operates through two segments: Consumer and Small Business (CSB) and Solar. The CSB segment primarily includes the sale, installation, servicing, and monitoring of integrated security and automation systems and other related offerings to owners and renters of residential properties, small business operators, and other individual consumers. The Solar segment primarily includes the sale and installation of solar systems and related solutions and services to residential homeowners. Its security offerings include burglar and life safety alarms, smart security cameras, smart home automation systems, and video surveillance systems. It designs, install, and sell custom residential solar systems and energy storage solutions, energy efficiency upgrades, and roofing services through dedicated and specialized in-house sales.