Segment Information

9 Months Ended

Sep. 30, 2021

Segment Information

Segment Information

11. Segment Information

Our activities are within the mechanical services industry and the electrical services industry, which represent our two reportable segments. We aggregate our operating segments into two reportable segments, as the operating segments meet all of the aggregation criteria. On January 1, 2021, we completed a change in the structure of our internal organization that resulted in a portion of our electrical segment’s business being moved to the mechanical segment. We reallocated goodwill between our reorganized reporting units and have restated comparative prior period information for the reorganized reportable segments in accordance with the guidance on segment reporting. Accordingly, we have restated comparative prior period information for the reorganized reportable segments in the tables below. The following table presents information about our reportable segments (in thousands):

	Three Months Ended September 30, 2021
	Mechanical Services		Electrical Services		Corporate		Consolidated
Revenue	$	690,680	$	143,216	$	—	$	833,896
Gross Profit	$	138,618	$	20,594	$	—	$	159,212
	Three Months Ended September 30, 2020
	Mechanical Services		Electrical Services		Corporate		Consolidated
Revenue	$	625,660	$	88,439	$	—	$	714,099
Gross Profit	$	139,845	$	7,351	$	—	$	147,196
	Nine Months Ended September 30, 2021
	Mechanical Services		Electrical Services		Corporate		Consolidated
Revenue	$	1,868,096	$	349,456	$	—	$	2,217,552
Gross Profit	$	359,151	$	49,985	$	—	$	409,136
	Nine Months Ended September 30, 2020
	Mechanical Services		Electrical Services		Corporate		Consolidated
Revenue	$	1,823,117	$	334,581	$	—	$	2,157,698
Gross Profit	$	386,537	$	23,447	$	—	$	409,984