The data displays the breakdown of revenue generated by the leading security system integrators between 2014 and 2017, by service type. In 2017, sales and installation accounted for 54% of the overall revenue.
2014 | 56 | 21 | 10 | 7 | 3 | 2 | ||
2015 | 58 | 18 | 11 | 7 | 3 | 2 | 1 | |
2016 | 58 | 16 | 10 | 7 | 4 | 3 | 1 | 1 |
2017 | 54 | 21 | 11 | 7 | 3 | 2 | 1 | 1 |