Over the last two years, we spent more than 650 hours researching and reviewing 23 home security providers. We focused on the 11 security system companies that meet stringent transparency requirements. As we evaluated each system, we looked at costs, contract terms and customer service. Read our recommendations and reviews of the top home security systems and providers available. If you're looking for a self-monitored, self-installed, no-contract system, check out our DIY home security reviews.