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 provide support services for utilities and utility companies (including metering, billing, development, maintenance, contract operation, and other services).
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 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.
Companies that engage in the generation, transmission, and distribution of electricity for sale in regulated markets.