EMCOR Group, Inc.

Overview

EMCOR Group, Inc. is a U.S.-focused provider of electrical and mechanical construction and facilities services. It designs, installs, operates, maintains and upgrades building systems such as power distribution, HVAC, plumbing, fire protection and controls, and also provides building and industrial services. Its principal business segments are electrical construction and facilities services, mechanical construction and facilities services, building services, and industrial services.[1]+5

EMCOR reported 2025 revenue of $16.986 billion. Its company profile lists approximately 47,700 employees and about 450 U.S. locations; its operations are predominantly in the United States.[7]+2 The company highlights “Mission First” and “People Always” among its core values.[10] [1]+9

Products & services

EMCOR Group primarily delivers electrical and mechanical construction and facilities services rather than branded products. Electrical work includes the design, installation, start-up, operation and maintenance of power generation, transmission and distribution systems; generators, UPS, transformers, switchgear and controls; lighting, fire alarms, security, process controls and communications systems. Its mechanical services include HVAC and refrigeration, plumbing and process piping, fire protection, clean-room ventilation, filtration, and water and wastewater treatment. The company also works on renewable-energy and electric-vehicle-charging systems.[2]+11

Facilities offerings include building-system maintenance and retrofits, building automation, energy-efficiency upgrades, facility operations and management, janitorial and floor-care services, landscaping and snow removal, and technical diagnostics. Industrial services include refinery and petrochemical turnarounds, process-unit maintenance and construction, instrumentation and controls, welding and fabrication, and repairs to heaters, boilers, vessels and other process equipment. EMCOR also designs and manufactures engineered shell-and-tube heat exchangers and provides their repair, cleaning and servicing.[22]+12

In fiscal 2025, electrical and mechanical construction operations generated approximately 72% of revenue, building services approximately 21%, and industrial services approximately 7%. Electrical work represented about 42% of electrical and mechanical construction revenue, with mechanical work accounting for the remainder.[35]+2 [2]+26

Geographic presence

EMCOR Group’s operations and revenue are concentrated in the United States. In FY2025, approximately 97% of revenue was generated in the U.S. and 3% in the United Kingdom. The U.K. share reflects activity before EMCOR sold its U.K. operations on December 1, 2025; those operations reported $471.3 million in revenue for the year through the sale date.[9][37]

At December 31, 2025, EMCOR reported approximately 44,000 employees, all located in the United States. Its executive offices are in Norwalk, Connecticut.[38][39] The company’s website describes a broad U.S. network, listing over 100 companies across 420 locations; another company overview gives an approximate count of 450 U.S. locations.[40][8] [9]+5

Business segments

For FY2025, EMCOR reported five operating segments. Approximate shares below are of consolidated revenue. **U.S. electrical construction and facilities services** represented about 30% ($5.07 billion) and covers electrical construction and facilities work across commercial, technology, healthcare, institutional and other markets. **U.S. mechanical construction and facilities services** represented about 42% ($7.05 billion) and provides mechanical construction and facilities services.[41]+2

**U.S. building services** represented about 18% ($3.12 billion), including mechanical services, HVAC projects and retrofits, repair and maintenance, building automation and controls, and site-based services. **U.S. industrial services** contributed about 7–8% (approximately $1.27 billion), with refinery and petrochemical turnaround and maintenance, engineering and capital-project work, instrumentation and controls, specialty welding and fabrication, and heat-exchanger services.[44]+2

**U.K. building services** contributed approximately 3% ($471 million) through its sale on December 1, 2025; its work included facilities maintenance and project services. EMCOR also presents revenue by activity: approximately 72% construction, 21% building services and 7% industrial services.[37][9] [41]+7

Company history

EMCOR Group’s corporate lineage includes Jamaica Water Supply Company, established in 1966, but the Delaware corporation that became EMCOR was formed in 1987 to continue the business of JWP Inc. After JWP’s Chapter 11 reorganization, the company emerged in December 1994 doing business as EMCOR Group, with a renewed focus on mechanical and electrical construction and services.[46]+2

The company expanded through acquisitions, including 19 Comfort Systems USA subsidiaries in 2002, industrial heat-exchanger services company Ohmstede in 2007, and government-infrastructure contractor Harry Pepper & Associates in 2010. In 2016, it acquired Ardent Services and Rabalais Constructors, broadening its industrial electrical and instrumentation capabilities.[49]+3

Frank T. MacInnis served as chief executive officer from 1994 until 2011, when Anthony J. Guzzi succeeded him; Guzzi became chairman in 2018. In 2025, EMCOR completed its acquisition of Miller Electric Company and sold EMCOR UK, marking a significant addition to and subsequent reshaping of its operations.[53]+3 [57]+15

Sources

• EMCOR Group, Inc. — Full financial report (2025 Y)
  40 citations

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• EMCOR Group, Inc. — Full financial report (2026 Q 2)
  7 citations

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