Company and reporting unit (FY2025 10-K),Revenue ($ million),Gross margin (%),Operating margin (%)
"Comfort Systems USA, mechanical segment","6,673.7",23.56,14.98
"Comfort Systems USA, consolidated","9,101.6",24.13,14.44
"EMCOR Group, U.S. mechanical construction and facilities services segment","7,050.5",not reported,12.84
"EMCOR Group, U.S. building services segment","3,122.2",not reported,6.00
"EMCOR Group, consolidated","16,986.4",19.33,10.09
"Limbach Holdings, Owner Direct Relationships segment",485.7,26.74,not reported by segment
"Limbach Holdings, General Contractor Relationships segment",161.1,24.48,not reported by segment
"Limbach Holdings, consolidated",646.8,26.18,7.65
"IES Holdings, Residential segment (fiscal year ended 2025-09-30)","1,304.4",25.79,7.96