IHS reported the global market for security systems integration reached $60.3 billion in 2015, including not only security equipment sales of video surveillance, physical access control and intruder alarm systems, but also installation and maintenance services. From 2015 to 2020, the services market — encompassing design and consultancy, installation, and service and maintenance — is forecast to be the fastest-growing sector of this market.
Service revenue in the Americas accounted for 63 percent of total security systems integration, while in Europe, Middle East and Africa (EMEA) it accounted for 56 percent. Revenue from services in Asia-Pacific (APAC) region made up just 43 percent of the market. 
Revenue from service and maintenance services, which reached $14.5 billion in 2015, is expected to rise to $18.8 billion in 2020.