Top 10 Home Security Companies Ranked by Residential Customers

Each year SDM releases it's top 100 home security companies ranked by customer base, revenue, employees, and locations. There are thousands of home security companies and dealers making it almost impossible to make a truly informed decision. The SDM 100 helps put the best companies into context by showing their ability to service large customer pools and consistently grow their companies without sacrificing quality. While the SDM 100 is not a perfect model to base a purchase decision, it acts as a starting point. Here are the top 10 companies ranked by their residential customer pools:

10. Security Networks

Residential subscribers: 120,000

Total subscribers: 126,000

9. ASG Security

Residential subscribers: 121,755

Total subscribers: 163,430

8. Protect America Inc.

Residential subscribers: 131,010

Total subscribers: 131,010

7. Central Security Group, Inc.

Residential subscribers: 140,053

Total subscribers: 150,595

6. Vector Security Inc.

Residential subscribers: 211,466

Total subscribers: 250,757

5. Guardian Protection Services

Residential subscribers: 228,802

Total subscribers: 251,985

4. Slomins Inc.

Residential subscribers: 263,113

Total subscribers: 282,917

3. Protection 1

Residential subscribers: 402,000

Total subscribers: 1,585,000

2. Monitronics International

Residential subscribers: 550,000

Total subscribers: 610,844

1. Vivint Inc.

Residential subscribers: 572,897

Total subscribers: 572,892

Real Customer Reviews

The home security reviews on our site are left by both customers organically looking to share their opinions and customers whose opinions have been solicited.

In order to ensure the legitimacy of reviews on, all reviews are moderated by real people. We check each review for fraud and violation of our review guidelines. Customer reviews are unbiasedly checked and used to rank the home security companies on our site. You can read the breakdown of how we rank companies here.