EMCOR Group, Inc.

What does EMCOR own?
EMCOR owns about 100 operating subsidiaries that provide electrical construction, mechanical construction, building services, and industrial services across the United States. Notable subsidiaries include Dynalectric, Bahnson Mechanical Systems, Heritage Mechanical, DeBra-Kuempel, Ohmstede, and Comunale.

Is EMCOR publicly traded?
Yes. EMCOR Group trades on the New York Stock Exchange under the ticker EME and is a component of the S&P 500 index.

Who founded EMCOR?
EMCOR was created in December 1994 when JWP Inc., formerly Jamaica Water Properties, emerged from Chapter 11 bankruptcy and was renamed and restructured. Frank MacInnis led the reorganization and served as the company's first CEO.

Where is EMCOR headquartered?
The company is headquartered in Norwalk, Connecticut. Its operating subsidiaries work from approximately 420 locations across the United States.

Who owns EMCOR?
EMCOR is an independent public company. Its shares are widely held by institutional investors such as Vanguard, BlackRock, and State Street, with no controlling shareholder.

What does EMCOR do?
EMCOR builds and services the electrical, mechanical, plumbing, and fire protection systems inside commercial buildings, data centers, hospitals, and industrial facilities. It also provides ongoing building maintenance and industrial services under recurring contracts.

Why did EMCOR sell its UK business?
EMCOR sold EMCOR UK to OCS Group in December 2025 for about $255 million to focus capital on the higher-growth U.S. market. The UK segment generated about $425 million in 2024 revenue, and the sale was expected to be modestly accretive to operating margins.

EMCOR's origins are unusual for a construction company. Its corporate predecessor was JWP Inc., originally Jamaica Water Properties, a New York utility holding company that transformed itself in the 1980s into a technical services conglomerate through rapid acquisition. JWP bought dozens of mechanical and electrical contracting firms, took on heavy debt, and filed for Chapter 11 bankruptcy protection in 1993.

On December 15, 1994, the company emerged from bankruptcy through a reorganization that converted creditor claims into equity in a new entity renamed EMCOR. Frank MacInnis, who had joined JWP as head of its electrical group, became CEO. MacInnis sold the water utilities and non-core assets, kept the strongest operating subsidiaries, and added facilities management services to create recurring revenue between construction cycles.

The rebuilt company grew through disciplined acquisition. In February 2002, it bought 19 companies from the bankrupt Comfort Systems USA for $186 million. In February 2003, it acquired Consolidated Engineering Services, the parent of Viox Services, for $178 million, deepening its government and facilities services business. In December 2005 it bought Philadelphia mechanical contractor Fluidics, and in January 2006 it added Ohio-based fire protection specialist Comunale. In August 2007, it acquired Ohmstede, a Texas industrial services firm, for $455 million, expanding into refinery and petrochemical maintenance.

MacInnis retired as CEO in January 2011 after producing 27 consecutive quarters of year-over-year revenue growth during his tenure. He was succeeded by Anthony "Tony" Guzzi, who had joined as president in 2004. Guzzi remained CEO and also took the chairman role in 2015.

Under Guzzi, EMCOR rode the data center construction boom. Demand for electrical and mechanical work inside hyperscale and colocation facilities made network and communications its fastest-growing market sector, with remaining performance obligations in that sector compounding at more than 50% annually since 2019.

In September 2025, the company agreed to sell EMCOR Group (UK), its United Kingdom building services segment, to OCS Group UK Limited for approximately 190 million pounds, about $255 million. The sale completed on December 1, 2025, sharpening EMCOR's focus on the United States and freeing capital for domestic acquisitions.

Fiscal 2025 closed with record revenue, profit, and backlog. For 2026, EMCOR guided revenue of $17.75 billion to $18.50 billion and diluted EPS of $27.25 to $29.25.

EMCOR publishes corporate responsibility reporting covering safety, workforce development, and environmental practices. Safety is the core operational metric: the company invests in field training, prefabrication, and technology intended to reduce jobsite risk in an industry with elevated injury rates.

On emissions, the company reports energy efficiency gains in its fleet and facilities but holds no major independent certifications such as B Corp. Its building services segment does perform energy efficiency retrofits for customers, an indirect environmental contribution. Most disclosure is self-reported rather than third-party verified.

• Engineering News-Record Top 600 Specialty Contractors: Ranked number 2 by revenue in 2025
• Fortune 500: Ranked number 300 on the 2025 list
• S&P 500: Index component, reflecting market capitalization among the largest U.S. public companies