PJM Interconnection, which oversees a 56,350-mile section of the North American power transmission grid that spans across 13 northeastern and midwestern states and the District of Columbia. The regional transmission organization monitors and coordinates the movement of wholesale electricity in its service territory; its more than 560 members have a combined generating capacity of about 164,000 MW. Sanctioned by the Federal Energy Regulatory Commission, PJM is charged with ensuring fair competition among power purchasers, sellers, and traders; it also is responsible for the reliable delivery of distributed electricity to about 51 million consumers in its territory.

Companhia Paranaense de Energia – Copel engages in the generation, transmission, distribution, and sale of electricity for industrial, residential, commercial, and rural customers primarily in the State of Parana, Brazil. It owns and operates 18 power plants, including 17 hydroelectric power plants and 1 thermal power plant with an installed capacity of 4,550 MW; transmission system comprising 1,913 km of transmission lines and 30 substations; and distribution system, including 180,696 km of distribution lines and 350 substations. The company serves approximately 3,671,262 consumers. It also provides telecommunication and communication services consisting of broadband Internet, private networks IP/MPLS-VPN, videoconference, and hosting services to schools, banks, supermarkets, Internet providers, industries, public bodies, stores, and fixed and mobile telephone operators. In addition, company has 6,026 km of OPGW cables, installed between the main ring and urban radials, totaling 10, 054 km and reaching 226 cities Parana. Further, it distributes piped gas. The company was founded in 1954 and is headquartered in Curitiba, Brazil.

F.B. Leopold wants to give you a nice, lean glass of water. The company develops and manufactures water and wastewater clarification, purification, and sludge collection equipment and backwash recovery systems. Customers include companies in the water and wastewater treatment industries. Its wastewater treatment systems include tertiary filtration, denitrification, clarification, and sludge collection systems. Founded in 1924, F.B. Leopold has been a part of ITT's Water & Wastewater Treament division since 2006.

Wahlco likes to keep it clean. It designs and manufactures air pollution control equipment, specializing in ammonia handling, flue gas conditioning, nitrogen oxide control equipment which it installs at power plants and other industrial facilities, including cement plants, oil and gas refineries, pulp and paper mills, and steel mills. Wahlco also makes products such as low-watt density heaters and specialty thermocouples for industrial applications. The company's systems and equipment can be found in more than 500 locations in more than 17 countries. Wahlco was founded by a small group of experts in 1972.

GeoSyntec Consultants provides services such as environmental management, geotechnical engineering, groundwater assessment and remediation, pollution prevention, and surface water management. The company operates from more than 30 offices, primarily in the US but also in Canada, Malaysia, and the UK. Its clients include Aerojet-General, AstraZeneca, Chevron, Delta Air Lines, FMC Corp., Georgia Power, Kimberly-Clark, Lockheed Martin, Pharmacia & Upjohn, and Shell Oil. Expanding its services in the water and natural resources segment, in 2010 Geosyntec acquired Rainwater Recovery, which focuses on rainwater harvesting technology.

Southern California Edison (SCE) distributes electricity to a population of more than 13 million people in central, coastal, and Southern California (excluding Los Angeles and some other cities in the regions). The utility's system consists of about 12,000 circuit miles of transmission lines and more than 113,500 circuit miles of distribution lines. SCE also has 5,500 MW of net generating capacity from interests in nuclear, hydroelectric, and fossil-fueled power plants; it sold most of its fossil-fueled facilities in response to the state's deregulation legislation. The utility sells excess power to wholesale customers. SCE is a subsidiary of Edison International.

Exelon Corporation company distributes electricity to 5.4 million customers in northern Illinois (including Chicago) and southeastern Pennsylvania (including Philadelphia) through subsidiaries Commonwealth Edison (ComEd) and PECO Energy. PECO also distributes natural gas to 485,000 customers. Subsidiary Exelon Generation holds the company's power plants, whose production capacity is just about 25,000 MW. About two-thirds of Generation's power is nuclear. Exelon Power Team is a top wholesale energy marketer, and Exelon Energy markets retail power and offers other energy-related services.

Kansai Electric Power Company (KEPCO) provides electricity to 13.3 million customers in Japan's Kansai region. The utility has a generating capacity of more than 33,850 MW, which is produced at more than 160 hydroelectric, fossil-fueled, and nuclear power plants. As deregulation takes effect, KEPCO is moving into new business arenas, including retail natural gas sales in Japan. Additionally, KEPCO is engaged in information technology, telecommunications, construction and engineering services, environmental services, home security, real estate, transportation leasing, and other energy-related operations. It has about 50 main affiliated companies, primarily in Japan.

Compressco Partners puts the pressure on before the natural gas and oil wells run dry. The company specializes in providing services to more than 400 natural gas and oil companies across 14 states to increase production and total recoverable reserves. The company offers compression, liquids separation, and gas metering services, as well as the GasJack units that perform these operations. It applies its services primarily to mature wells, but also on newer wells, which have declined in production. Compressco Partners, a subsidiary of TETRA Technologies, also provides well evaluations and well testing and monitoring services in Mexico.

Thermal Energy International ledgers are in the black. The company focuses on providing air pollution control, renewable energy, and waste heat recovery and other energy conservation products, primarily under the Flu-Ace and Dry-Rex names. It also offers complementary engineering services. Thermal Energy International is also developing a product that targets ozone generation, THERMALOZOMAX. Customers include auto manufacturers; coal-fired utilities; food makers; hospitals; primary metal, pulp and paper processors; and sewage-treatment facilities.

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