EMCOR Group, Inc. is a specialty contractor in the United States and a provider of electrical and mechanical construction and facilities services, building services, and industrial services. The Company’s services are provided to a range of commercial, technology, manufacturing, industrial, healthcare, utility, and institutional customers through approximately 100 operating subsidiaries. Such operating subsidiaries are organized into the various reportable segments, including the United States electrical construction and facilities services, United States mechanical construction and facilities services, United States building services, and United States industrial services. Its electrical and mechanical construction services primarily involve the design, integration, installation, start-up, operation and maintenance, and provision of services relating to roadway and transit lighting and signaling and fiber optic lines, and fire protection and suppression systems.