How many customers does ADT have? ADT is one of the largest home alarm system companies in the world. It has more than 5 million residential customers and over 2 million commercial customers throughout the world. ADT is a division Tyco International and has locations throughout the world. ADT is also purchasing Broadview security company as well.
Do you want to be a customer for ADT though? I’ll give you my first hand experience with them. I have been with ADT for over 10 years now and have been fairly satisfied. Do you have other options, of course you do. You can do self monitoring systems. You can go with cheaper monitoring companies like Monitronics which will only run you around $10 / month vs. the $30 per month you would pay for ADT. At the end of the day, you have to decide how much you want to spend.