Companies that operate water supply systems (including pumping stations, aqueducts, distribution mains, and other facilities) used to provide water for drinking, irrigation, or other purposes.

Companies that manufacture, market, and distribute basic materials, industrial products, chemicals, as well as machinery and equipment.

Companies that produce water from various sources (sea, rivers, wells, waste water) and render it suitable for drinking, irrigation, and/or industrial use.

Companies that operate power plants for converting fossil fuel into electric power; including generation facilities that use fossil fuels (such as coal, oil, or gas) to produce electric energy; electric energy is then provided to electric power transmission or electric power distribution systems.

Companies that operate facilities that remove soluble salts from water to render it suitable for drinking, irrigation, or industrial uses.

Companies that manufacture and/or distribute basic materials and industrial products (including fabricated metals, glass products, packing and containers, paper and paper products, plastic and rubber products, textile, wires and cables).

Companies that operate electric power transmission systems (consisting of lines and transformer stations) to control the transmission of electricity (through regulating transmission voltages) and/or distribute electricity (via lines, poles, meters, and wiring) .

Companies that own, operate and produce and/or distribute steam, heated or cooled air. The companies' activities include cooling, heating, filtering and dehumidifying the air in hot, corrosive, dusty, hazardous and other harsh industrial environments, as well as other air-conditioning services.

Companies that engage in the generation, transmission, and distribution of electricity for sale in regulated markets.

Companies that manufacture, market, and/or distribute wires, cables, cords, and similar products.

Companies that restore machinery, equipment, and other products to working order; includes offering routine checks and refining services to ensure that the products work efficiently and prevent unnecessary repairs.

Companies that design, manufacture, market, and/or distribute components used in the generation, transmission, distribution, or use of electrical power (including electric motors, generators, transformers, switchers, batteries, electrical outlets, fuse boxes, voltage regulators, capacitors, control panels and other electrical equipment and devices).

Companies that provide electric power, natural gas, steam supply, water supply, and sewage removal through a permanent infrastructure of lines, mains, and pipes.

Companies that operate sewage treatment facilities and other waste water treatment systems that modify the quality of waste water and make it useful to humans and the environment (used for drinking, irrigation, or other purposes), including sewer systems (that collect, treat, and dispose waste) treatment plants, pipes, and other infrastructure that facilitate physical, chemical and biological processes for removing physical, chemical and biological contaminants.

Companies that import and/or distribute wires, cables, cords, and similar products.

Companies that design, manufacture, assemble, market, distribute, and/or lease machinery and equipment (lighting equipment, agriculture machinery, commercial hardware, fastener equipment, construction machinery, electrical machinery, food service and food retail machinery, industrial automation and industrial control equipment, pumps, valves, seals, fluid control equipment, as well as safety and security equipment).

Companies that operate facilities for electric power generation, so as to convert forms of energy (including hydroelectric, fossil fuels, and nuclear power) into electrical energy. The sector includes companies that produce electric energy and provide electricity to transmission systems or to distribution systems.

Companies that operate electric power distribution systems (such as lines, poles, meters, and wiring) that carry electricity to wholesale or retail customers, and companies that act as electric power brokers and agents and arrange the sale of electricity via power distribution systems operated by others.

Companies that operate water supply systems and/or waste water treatment systems to provide water, desalinated water, and/or waste water treatment services.