Business and Organization (Tables)

12 Months Ended

Dec. 31, 2015

Business and Organization

Schedule of service activities

	Revenue
Service Activity	$ in thousands		%
HVAC	$	1,216,999		77	%
Plumbing		221,273		14	%
Building Automation Control Systems		79,026		5	%
Other		63,221		4	%
Total	$	1,580,519		100	%