| 2W Energia S.A. | Brazil |
Private
|
| A E S Puerto Rico Lp | Puerto Rico |
Private
|
| A/S Norske Shell | Norway |
Private
|
| ABB Holdings Inc. | United States |
Private
|
| ABB Industrietechnik AG | Germany |
Private
|
| Abound Solar Inc. | United States |
Private
|
| Abu Dhabi Water & Electricity Authority | United Arab Emirates |
Private
|
| Accent Energy Group, LLC | United States |
Private
|
| Acegas-APS S.P.A | Italy |
Private
|
| Acque Potabili S.p.A. | Italy |
Private
|
| Acquedotto de Ferrari Galliera SpA | Italy |
Private
|
| Acquedotto Pugliese SpA | Italy |
Private
|
| Acquirente Unico SPA | Italy |
Private
|
| Action Instruments, Inc. | United States |
Private
|
| Acton Municipal Utility District | United States |
Private
|
| Acueducto Metropolitano De Bucaramanga S.A.E.S.P. | Colombia |
Private
|
| AEI Limited | United States |
Private
|
| Aeolos S.A. | Greece |
Private
|
| AEP Generating Company | United States |
Private
|
| AEP Texas Central Company | United States |
Private
|
| AEP Texas North Company | United States |
Private
|
| Aes Argentina Generacion S.A. | Argentina |
Private
|
| AES Changuinola S.R.L. | Panama |
Private
|
| AES China Generating Company, Ltd. | Bermuda |
Private
|
| AES Chivor & Cia SCA ESP | Colombia |
Private
|
| AES Drax Holdings Limited | Cayman Islands |
Private
|
| AES Eastern Energy, L.P. | United States |
Private
|
| AES Panama, S.R.L. | Panama |
Private
|
| AES Wind Generation Limited | United Kingdom |
Private
|
| Affinity Water Limited | United Kingdom |
Private
|
| Agac Spa | Italy |
Private
|
| Agder Energi As | Norway |
Private
|
| AGL Hydro Partnership | Australia |
Private
|
| AGL Macquarie Pty Limited | Australia |
Private
|
| Aguas De Antofagasta S.A. | Chile |
Private
|
| Aguas de Buga S.A. ESP | Colombia |
Private
|
| Aguas de Cartagena S.A. E.S.P. | Colombia |
Private
|
| Aguas de Manizales S.A. E.S.P. | Colombia |
Private
|
| Aguas de Rionegro S.A. E.S.P. | Colombia |
Private
|
| Aguas Del Municipio De Durango | Mexico |
Private
|
| AGZ Holding SAS | France |
Private
|
| Air Products Manufacturing Corporation | United States |
Private
|
| Ajax Magnethermic Corporation | United States |
Private
|
| Ajman Sewerage (Private) Company Limited | United Arab Emirates |
Private
|
| Aktas Elektrik Ticaret A.S. | Turkey |
Private
|
| Alabama Municipal Electric Authority | United States |
Private
|
| Alameda County Water District Inc | United States |
Private
|
| Alaska Electric Light & Power Co. | United States |
Private
|
| Alaska Energy Authority | United States |
Private
|
| Albany Municipal Water Finance Authority | United States |
Private
|
| Albany Water Gas & Light Commission | United States |
Private
|
| Alberta Electric System Operator | Canada |
Private
|
| Alberta Natural Gas Company Ltd | Canada |
Private
|
| Albuquerque Bernalillo County Water Utility Authority | United States |
Private
|
| Alcantarillado del Municipio de Puebla | Mexico |
Private
|
| Aletsch AG | Switzerland |
Private
|
| Alianca Geracao de Energia SA | Brazil |
Private
|
| Alinta Energy Finance Pty Ltd | Australia |
Private
|
| Alisal Water Corporation | United States |
Private
|
| Allegheny Electric Co-Operative, Inc | United States |
Private
|
| Allegheny Energy Supply Company, LLC | United States |
Private
|
| Allegheny Energy, Inc. | United States |
Private
|
| Allegheny Generating Company | United States |
Private
|
| Allete Capital I | United States |
Private
|
| Alliant Energy Resources LLC | United States |
Private
|
| Allied Renewable Energy, LLC | United States |
Private
|
| Alpiq Holding AG | Switzerland |
Private
|
| AltaGas Utility Group Inc. | Canada |
Private
|
| AltaLink Investments L.P. | Canada |
Private
|
| AltaLink L.P. | Canada |
Private
|
| Altas Investments Public Limited Company | Republic of Ireland |
Private
|
| Altek Power Corporation | Canada |
Private
|
| ALTERGAZ SA | France |
Private
|
| Altoona Water Authority | United States |
Private
|
| Ambridge Borough Municipal Authority | United States |
Private
|
| Ambridge Water Authority | United States |
Private
|
| AmerenCIPS | United States |
Private
|
| American Falls Reservoir District | United States |
Private
|
| American Municipal Power (AMP) - Greenup Project (OH) | United States |
Private
|
| American Transmission Systems, Inc. | United States |
Private
|
| Americas Power Partners | United States |
Private
|
| Ammper Energia, S.A.P.I. de C.V. | Mexico |
Private
|
| Amprion GmbH | Germany |
Private
|
| Amps Spa | Italy |
Private
|
| Anaheim California Electric System | United States |
Private
|
| Anaheim Electric System | United States |
Private
|
| Andhra Valley Power Supply Co., Ltd. | India |
Private
|
| Anexo Guacolda Energía S.A | Chile |
Private
|
| Anglian Water (Osprey) Financing PLC | United Kingdom |
Private
|
| Anglian Water Services Holdings Limited | United Kingdom |
Private
|
| Anglian Water Services Limited | United Kingdom |
Private
|
| Anniston Waterworks & Sewer Board | United States |
Private
|
| ANR Pipeline Company | United States |
Private
|
| Antelope Valley-East Kern Water Agency, CA | United States |
Private
|
| Appalachian Power Co | United States |
Private
|
| Aqua Pennsylvania Inc | United States |
Private
|
| Aquarion Company | United States |
Private
|
| Aquarion Water Company of Connecticut | United States |
Private
|
| Aquila Gas Pipeline Corporation | United States |
Private
|
| Arapahoe County Water & Wastewater Authority | United States |
Private
|
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