Pennon Group Plc South West Water subsidiary provides water and wastewater services to more than 1.6 million people (more during the summer tourism season) in England's South West region, including Devon, Cornwall, and parts of Dorset and Somerset. South West Water's Echo South West unit contracts to run customer service operations for utilities. Pennon subsidiary Viridor Waste -- one of the largest waste management businesses in the UK -- offers solid waste collection, landfill disposal, and recycling and other services.

Zephyr Environmental provides consulting, training, and data systems services relating to such areas as air quality, water quality, business protection programs, environmental health and safety, risk management, waste management, and regulatory tracking. The company has undertaken projects for clients in North and South America, Europe, the Middle East, and the Asia/Pacific region. Customers have included oil and gas companies, as well as companies in the cement manufacturing, chemical, pharmaceutical, and semiconductor industries. Zephyr Environmental operates from offices in Texas (Austin and Houston) and in Maryland. It also maintains an office in Dubai.

ATCO operates worldwide in utilities, power generation, and related services. Majority-owned Canadian Utilities oversees most of the group's energy businesses, including ATCO Electric and ATCO Gas (transmission and distribution) and ATCO Power (generation). Other holdings include gas gatherer and processor ATCO Midstream, and gas transporter ATCO Pipelines. ATCO I-Tek provides IT, billing, and customer care services. ATCO Structures & Logistics manufactures modular buildings and provides logistical and noise abatement services. Utilities ATCO Electric (with nearly 207,000 customers) and ATCO Gas (with more than 1 million customers) account for the largest slice of ATCO's revenues.

Techem knows when the heat is on. The company is a leading European utility services firm (with operations in 20 countries) that monitors energy and water consumption in 8 million end-user households, primarily apartments and multi-family dwellings in Germany. It also offers its 690,000 clients additional services such as heat and water meter sales and rentals, heating system maintenance, and bill collection. Techem Energy Contracting builds and operates facilities for energy supply, and the company's IT division offers property management software.

Carbtrol doesn't care about your carbohydrate consumption; instead, the company works to protect the health of the environment. Carbtrol makes activated carbon filters for air and water treatment, along equipment used for groundwater remediation and soil vapor extraction. In addition, the company supplies treatment systems designed to allow golf courses and car washes to recycle water. Carbtrol was founded in 1983. The company's primary product in the early years was activated carbon systems. It expanded its product line to include engineered packages using air stripping, vapor extraction technologies, and ion exchange treatment.

Seprotech Systems gets the salt out of old salts' drinking water. Designing, manufacturing, and producing water and wastewater treatment systems, Seprotech Systems serves a variety of markets, including industry, the military, municipalities, property development, and mining. Among its projects has been the repair and overhaul of shipboard reverse osmosis desalination units for the Canadian Navy. Seprotech Systems' Clementine transportable, containerized wastewater treatment plant is useful for mining camps, foreign-aid missions, and other remote work sites. It also has a water utilities unit, formed after the 2009 acquisition of Envirosearch. Seprotech Systems was founded in 1985.

Geocon Group digs deep to make sure that its client have confidence in its geotechnical, environmental, geologic, material testing, and environmental contracting services. Projects range from geotechnical investigations to hazardous substance corrective action programs. The company operates throughout the western US and in Mexico. Geocon Group has worked on more than 10,000 projects for more than 2,500 clients. Its 11 offices are in California (Bakersfield, Sacramento, San Diego, San Bernadino, Murrieta, Livermore, and Los Angeles), as well as in Portland and Condon, Oregon, and Las Vegas and Carson City, Nevada.

Canadian Utilities is the strong arm of diversified energy company ATCO and accounts for most of its sales. Canadian Utilities' regulated utilities operations are ATCO Gas, which distributes natural gas to more than 1 million customers in almost 300 communities in Alberta, and ATCO Electric, which provides electricity to about 207,000 customers. ATCO Pipelines provides natural gas transportation services to producers, major industrial users and gas distribution companies in Alberta. Canadian Utilities' Energy unit (including ATCO Power, ATCO Midstream and ATCO Energy Solutions) manages power generation and pipeline activities. The Technologies segment provide business systems solution through ARCO I-Tek.

Southwest Gas Corporation engages in the purchase, distribution, and transportation of natural gas in portions of Arizona, Nevada, and California. As of December 31, 2009, Southwest Gas Corporation purchased and distributed, or transported natural gas to approximately 1,824,000 residential, commercial, and industrial customers. It also operates as an underground piping contractor that provides utility companies with trenching and installation, replacement, and maintenance services for energy distribution systems. Southwest Gas Corporation was founded in 1931 and is headquartered in Las Vegas, Nevada.

Rappahannock Electric Cooperative (REC) keeps the power running smoothly. The consumer-owned cooperative provides electricity to homes, businesses, and industries in parts of 16 counties from the Blue Ridge Mountains to the mouth of the Rappahannock River in eastern Virginia. REC supplies power to 102,000 members over more than 12,000 miles of power line. Once rural in nature, the cooperative's territory has seen large pockets of suburban growth. REC offers surge protection, internet services, and home security plans to entice customers as competition from other suppliers arrives.

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