EMCOR Group, Inc. provides construction and facilities, building, and industrial services in the United States and the United Kingdom. It offers design, integration, installation, start-up, operation, and maintenance services related to power transmission, distribution, and generation systems; energy solutions; premises electrical and lighting systems; process instrumentation; low-voltage systems; voice and data communications systems; roadway and transit lighting, signaling, and fiber optic lines; computerized traffic control systems, and signal and communication equipment; heating, ventilation, air conditioning, refrigeration, and geothermal solutions; clean-room process ventilation systems; fire protection and suppression systems; plumbing, process, and high-purity piping systems; controls and filtration systems; water and wastewater treatment systems; central plant heating and cooling systems; crane and rigging services; millwright services; and steel fabrication, erection, and welding services. The company also provides building services that covers commercial and government site-based operations and maintenance; facility management, maintenance, and services; energy efficiency retrofit services; military base operations support services; services for indoor air quality; floor care and janitorial services; landscaping, lot sweeping, and snow removal services; vendor management and call center services; installation and support for building systems; program development, management, and maintenance for energy systems; technical consulting and diagnostic services; infrastructure and building projects; modification and retrofit projects; and other building services, including reception, security, and catering services. In addition, it offers refinery turnaround planning and engineering; welding; overhaul and maintenance; instrumentation and electrical; and renewable energy services. The company was incorporated in 1987 and is headquartered in Norwalk, Connecticut.

Acuity Brands, Inc. provides lighting, lighting controls, building management system, location-aware applications in the United States and internationally. The company operates in two segments, Acuity Brands Lighting and Lighting Controls (ABL); and the Intelligent Spaces Group (ISG). The ABL segment provides commercial, architectural, and specialty lighting solutions, as well as lighting controls and components for various indoor and outdoor applications under the A-Light, Aculux, American Electric Lighting, Cyclone, Dark to Light, eldoLED, Eureka, Gotham, Healthcare Lighting, Holophane, Hydrel, IOTA, Juno, Lithonia Lighting, Luminaire LED, Luminis, Mark Architectural Lighting, nLight, OPTOTRONIC, Peerless, RELOC Wiring Solutions, and Sensor Switch. This segment serves electrical distributors, retail home improvement centers, electric utilities, corporate accounts, original equipment manufacturers, digital retailers, lighting showrooms, and energy service companies. The ISG segment offers building management solutions, such as products for controlling heating, ventilation, air conditioning, lighting, shades, refrigeration, and building access that deliver end-to-end optimization of those building systems; and building management software that enhances building system management and automates labor intensive tasks. This segment serves system integrators, as well as retail stores, airports, and enterprise campuses. It offers its products and solutions under the Atrius, Distech Controls, and KE2 Therm Solutions brands. Acuity Brands, Inc. was incorporated in 2001 and is headquartered in Atlanta, Georgia.

Enphase Energy, Inc., together with its subsidiaries, designs, develops, manufactures, and sells home energy solutions for the solar photovoltaic industry in the United States and internationally. The company offers semiconductor-based microinverter, which converts energy at the individual solar module level and combines with its proprietary networking and software technologies to provide energy monitoring and control. It also provides microinverter units and related accessories, an IQ gateway; IQ batteries; the cloud-based Enlighten monitoring service; storage solutions; and electric vehicle charging solutions, as well as design, proposal, permitting, and lead generation services. The company sells its solutions to solar distributors; and directly to large installers, original equipment manufacturers, strategic partners, and homeowners, as well as through its legacy product upgrade program or online store. Enphase Energy, Inc. was incorporated in 2006 and is headquartered in Fremont, California.

Ormat Technologies, Inc. engages in the geothermal and recovered energy power business in the United States, Indonesia, Kenya, Turkey, Chile, Guatemala, Guadeloupe, New Zealand, Honduras, and internationally. It operates in three segments: Electricity, Product, and Energy Storage. The Electricity segment develops, builds, owns, and operates geothermal, solar photovoltaic, and recovered energy-based power plants; and sells electricity. The Product segment designs, manufactures, and sells equipment for geothermal and recovered energy-based electricity generation; and provides services relating to the engineering, procurement, construction, operation, and maintenance of geothermal and recovered energy-based power plants. This segment serves contractors; and owners and operators of interstate natural gas pipelines, gas processing plants, and cement plants, as well as companies in other energy-intensive industrial processes. The Energy Storage segment offers battery energy storage systems and related services. Ormat Technologies, Inc. was founded in 1965 and is headquartered in Reno, Nevada.

SolarEdge Technologies, Inc., together with its subsidiaries, designs, develops, manufactures, and sells direct current (DC) optimized inverter systems for solar photovoltaic (PV) installations in the United States, Germany, the Netherlands, Italy, rest of Europe, and internationally. The company offers power optimizers, inverters, batteries, storage solutions, electric vehicle chargers, smart tracking solutions, and smart energy management software products; Monitoring platform, a cloud-based monitoring platform, which collects power, voltage, current, and system data sent from inverters and power optimizers; and MySolarEdge app, that enables system owners to track their real-time system production and household energy consumption. It also provides Designer platform, an web-based tool that helps solar professionals to plan, build, and validate residential and commercial systems; Mapper application for registering the physical layout of new PV sites installed with DC optimized inverter systems; SetApp application that activates and configurate inverters; and grid services. in addition, the company offers e-mobility products, automated machines, and UPS products; and pre-sales support, ongoing trainings, and technical support and after installation services. It sells its products through solar installers and distributors, electrical equipment wholesalers, and PV module manufacturers, as well as engineering, procurement, and construction firms. The company was incorporated in 2006 and is headquartered in Herzliya, Israel.

Astronics Corporation, through its subsidiaries, designs and manufactures products for the aerospace, defense, and electronics industries in the United States, rest of North America, Asia, Europe, South America, and internationally. The company operates in two segments, Aerospace and Test Systems. The Aerospace segment offers lighting and safety systems, electrical power generation systems, distribution and seat motions systems, aircraft structures, avionics products, system certification, and other products. This segment serves airframe manufacturers (OEM) that build aircraft for the commercial, military, and general aviation markets; suppliers to OEMs; and aircraft operators, such as airlines; suppliers to the aircraft operators; and branches of the U.S. Department of Defense. The Test Systems segment designs, develops, manufactures, and maintains automated test systems that support the aerospace and defense, and mass transit industries, as well as training and simulation devices for commercial and military applications. It serves OEMs and prime government contractors for electronics and military products. Astronics Corporation was incorporated in 1968 and is headquartered in East Aurora, New York.

LSI Industries Inc. produces and sells non-residential lighting and retail display solutions in the United States, Canada, Mexico, and Latin America. It operates through two segments, Lighting and Display Solutions. The Lighting segment manufactures, markets, and sells non-residential outdoor and indoor lighting fixture and control solutions in the commercial and industrial markets. This segment also offers lighting control products, including sensors, photocontrols, dimmers, motion detection, circuit controllers, and Bluetooth systems to support lighting fixtures; and designs, engineers, and manufactures electronic circuit boards, assemblies, and sub-assemblies. The Display Solutions segment manufactures, sells, and installs exterior and interior visual image and display elements, including printed and structural graphics, digital signage, menu board systems, display fixtures, refrigerated displays, and custom display elements. This segments products and services include signage and canopy graphics, pump dispenser graphics, building fascia graphics, decals, interior signage and marketing graphics, aisle markers, wall mural graphics, and refrigerated and non-refrigerated merchandising displays. This segment also provides project management services comprising installation management, site surveys, permitting, and content management; and manages and executes the implementation of large rollout programs. It serves refueling and convenience store, parking lot and garage, quick-service restaurant, retail, grocery and pharmacy, automotive, dealership, sports court, and field markets, as well as warehouses. LSI Industries Inc. was founded in 1976 and is headquartered in Cincinnati, Ohio.

Energy Focus, Inc., together with its subsidiaries, designs, develops, manufactures, markets, and sells energy-efficient lighting systems, and controls and ultraviolet-C light disinfection products in the United States and internationally. It offers military maritime market light-emitting diode (LED) lighting products, such as Military-grade Intellitube retrofit TLED and the Invisitube ultra-low EMI TLED; and Military-grade fixtures, including LED globe lights, berth lights; high-bay fixtures and LED retrofit kits to serve the United States navy and allied foreign navies. The company also provides RedCap emergency battery backup TLEDs; EnFocus lighting platform, including dimming and color tuning; and LED retrofit solutions for linear fluorescent lamps, downlights, and retrofit kits for low-bay, high-bay and office applications; LED dock lights. It sells its products to military maritime, industrial, and commercial markets through direct sales employees, independent sales representatives, lighting agents, and distributors, as well as via e-commerce. The company was formerly known as Fiberstars, Inc. and changed its name to Energy Focus, Inc. in May 2007. Energy Focus, Inc. was founded in 1985 and is headquartered in Solon, Ohio.