| ABO-Wind | 75 | 442 |
| Acciona Energia | 258 | 6,579 |
| ACS | 16 | 654 |
| Aerowatt | 27 | 100 |
| AES | 10 | 787 |
| AGL | 6 | 470 |
| Airtricity | 24 | 528 |
| Akuo Energy | 5 | 84 |
| Alaska Village Electric Coop (AVEC) | 5 | 1 |
| Alerion | 14 | 450 |
| Alize | 9 | 111 |
| Allianz | 5 | 180 |
| Altus AG | 5 | 62 |
| Asja Ambiente Italia Spa | 5 | 54 |
| Aspiravi | 13 | 49 |
| Austrian Wind Power GmbH | 11 | 269 |
| AVA | 10 | 6 |
| B9 Energy | 6 | 104 |
| Bluarc | 6 | 585 |
| BMR | 16 | 105 |
| Boralex | 24 | 260 |
| Boreas | 12 | 125 |
| Caithness | 15 | 256 |
| Canadian Hydro Developers | 6 | 250 |
| Cartier Wind Energy | 5 | 483 |
| Cavalum | 11 | 37 |
| China Datang | 5 | 400 |
| China State Power Corp | 17 | 167 |
| Chubu Electric Power | 5 | 32 |
| CLP India | 8 | 518 |
| CNR | 11 | 105 |
| Compagnie du Vent | 25 | 220 |
| CRES | 5 | 3 |
| Cumbria Wind Farms | 5 | 19 |
| Dirkshof Erneuerbare Energien GmbH | 5 | 73 |
| Dong Energy | 86 | 2,010 |
| Dong Energy A/S | 11 | 944 |
| DWS/John Deere Wind | 8 | 80 |
| e.n.o. Energy | 6 | 52 |
| E.ON Climate Renewables | 82 | 2,875 |
| Eco Wind Power Ltd | 5 | 24 |
| Ecotricity | 15 | 51 |
| Ecyr | 13 | 350 |
| EDF-EN | 91 | 2,529 |
| Edison Energie Speciali | 19 | 290 |
| Edison Mission Group | 19 | 1,154 |
| EDP Renovaveis | 73 | 1,065 |
| EDPR | 7 | 173 |
| EEHC | 6 | 307 |
| Elecdey | 5 | 134 |
| Electrabel SA | 15 | 303 |
| Electrawinds | 19 | 226 |
| Empreendimento Eolico do Vale do Minho | 9 | 240 |
| ENBW | 6 | 58 |
| Endesa | 6 | 141 |
| Eneco NV | 7 | 78 |
| Enel GreenPower | 85 | 1,361 |
| ENEOP | 21 | 328 |
| Enercon | 14 | 148 |
| ENEREEM | 6 | 11 |
| Energi E2 WP Karistias | 6 | 22 |
| Energia Global Castellana | 5 | 140 |
| Energias Renovables de la region de Murcia | 7 | 140 |
| Energie Team Exploitations | 9 | 106 |
| Energieanlagen FB | 7 | 29 |
| Energiekontor | 13 | 94 |
| Energiequelle | 80 | 418 |
| Energy Power Resources | 6 | 97 |
| Enertrag | 83 | 710 |
| enXco | 48 | 2,436 |
| Eole Generation | 8 | 140 |
| Eole-Res | 16 | 276 |
| Eolfi | 25 | 224 |
| Eolica la Brujula SA | 6 | 74 |
| Eolicas de Euskadi | 6 | 93 |
| Eolus Vind AB | 10 | 65 |
| EPZ Project Zurndorf Energy Ltd | 6 | 20 |
| Erelia | 13 | 140 |
| ERG Renew | 6 | 137 |
| Escofi | 11 | 112 |
| Essent | 12 | 75 |
| Essent NV | 5 | 39 |
| Eufer | 11 | 269 |
| Eurowatt | 10 | 92 |
| Eurus Energy | 34 | 1,015 |
| EVN-Naturkraft | 11 | 122 |
| Falck Renewables | 12 | 307 |
| First Wind | 7 | 606 |
| FPL Energy | 75 | 6,111 |
| Fri-El | 12 | 364 |
| Gamesa Eolica SA | 29 | 931 |
| GDF Suez | 18 | 578 |
| GE Wind Energy | 5 | 161 |
| Generg | 16 | 305 |
| Germania Windpark | 6 | 65 |
| Germania Windpark GmbH & Co. KG | 5 | 22 |
| Gislov Vind AB | 5 | 12 |
| Global Wind Power | 46 | 416 |
| Goteborg Energi AB | 5 | 3 |
| Goteborgsvind-Goteborg Energi AB | 5 | 2 |
| Greentech Energy Systems | 6 | 101 |
| Gruppo IVPC | 5 | 117 |
| Guohua Resourceful Wind Power | 8 | 253 |
| Hibernian Wind Power | 5 | 630 |
| Hokkaido Electric Power Co | 5 | 2 |
| Horizon Wind Energy | 36 | 3,165 |
| Iberdrola | 195 | 6,853 |
| Iberdrola Renewables | 10 | 465 |
| Iberdrola Renovables | 6 | 462 |
| Iberenova Promociones | 6 | 116 |
| Iberwind | 33 | 624 |
| Idaho Wind Partners (GE Financial Services, Exergy Development Group, Atlantic Power, Reunion Power) | 13 | 203 |
| Infigen Energy | 31 | 2,329 |
| Innovent | 20 | 96 |
| Invenergy | 22 | 2,091 |
| Investigación y Desarrollo de Energías Renovables (IDER) | 5 | 114 |
| IP Maestrale | 10 | 132 |
| Italenergia Bis SpA | 9 | 88 |
| IVPC | 23 | 373 |
| J-Power | 8 | 218 |
| JMB Energie | 7 | 48 |
| John Deere Wind Energy | 16 | 442 |
| JPEE | 6 | 65 |
| Juvent SA | 5 | 24 |
| Juwi | 17 | 154 |
| Kallista | 18 | 195 |
| Kotzebue Elec. Assoc. | 5 | 1 |
| Kotzebue Electric Association | 5 | 1 |
| Lestenergia | 5 | 95 |
| Maïa Eolis | 18 | 180 |
| Maïa Sonnier | 12 | 106 |
| MBBF | 6 | 60 |
| Meridian | 5 | 293 |
| MidAmerican Energy | 12 | 935 |
| Midwest Wind Energy | 5 | 616 |
| Molinos del Ebro SA | 7 | 236 |
| MSPL | 7 | 216 |
| Natenco | 94 | 412 |
| Natural Power/Fred Olsen | 7 | 315 |
| Neg Micon | 5 | 57 |
| Neo Energia | 23 | 479 |
| Noble Environmental Power | 10 | 899 |
| Nordex | 6 | 59 |
| Northern Alternative Energy | 7 | 11 |
| Nuon NV | 25 | 309 |
| Office National de l’Electricite | 5 | 367 |
| OKOENERGIE GmbH | 16 | 103 |
| Olivento, S.L. | 12 | 223 |
| Ostwind/Babcock and Brown/Enersis | 8 | 86 |
| Pacific Hydro | 9 | 454 |
| PacifiCorp | 9 | 656 |
| Parque eólico Altos de Voltoya, S.A. | 5 | 62 |
| Parque eolico Hinojal SL | 5 | 25 |
| PNE | 9 | 69 |
| Poweo | 11 | 106 |
| PPM Energy | 8 | 771 |
| Privé/Private | 5 | 29 |
| Prokon | 42 | 450 |
| Public Power Corporation | 12 | 17 |
| Puget Sound Energy | 5 | 772 |
| PVO Innopower Oy | 11 | 106 |
| REG Windpower | 8 | 21 |
| Renerco | 7 | 110 |
| Renewable Energy Services Limited | 7 | 5 |
| Renomar | 5 | 180 |
| Repower | 8 | 56 |
| RES | 21 | 452 |
| REVe | 5 | 45 |
| Rokas | 19 | 278 |
| RWE Innogy | 9 | 203 |
| RWE Npower | 28 | 1,045 |
| Scottish & Southern Energy PLC | 16 | 906 |
| Scottish Power | 27 | 945 |
| SeaWest | 14 | 83 |
| Séchilienne-Sidec | 5 | 51 |
| SL Windenergie | 9 | 44 |
| Slitevind AB | 13 | 16 |
| Sorgenia France | 13 | 193 |
| SPE NV | 10 | 99 |
| STEG | 9 | 242 |
| Suomen Hyotytuuli Oy | 6 | 34 |
| Suzlon | 8 | 26 |
| Taipower | 19 | 352 |
| Tecneira | 7 | 52 |
| Terna Energy SA | 7 | 105 |
| The Okinawa Electric Power Co | 16 | 5 |
| Théolia | 19 | 180 |
| TransAlta Wind | 17 | 663 |
| Triodos Renewables | 5 | 45 |
| Unison Co. | 8 | 166 |
| Utility Eneco | 9 | 63 |
| Utility Essent | 9 | 107 |
| Utility NUON | 5 | 48 |
| Valeco | 11 | 64 |
| Valorem | 8 | 109 |
| Vapat | 8 | 340 |
| Vastanby AB | 5 | 9 |
| Vattenfall | 68 | 1,121 |
| Veronagest | 15 | 527 |
| Volkswind | 11 | 217 |
| VSB Energies nouvelles | 8 | 76 |
| W.E.B. | 5 | 62 |
| WEB Windenergie AG | 24 | 81 |
| WEOM BV | 5 | 15 |
| Wind Prospect | 27 | 260 |
| Windkraft Simonsfeld GmbH & Co KG | 9 | 99 |
| Windstrom | 12 | 140 |
| Winpro | 5 | 14 |
| WKN AG | 65 | 728 |
| Wotan Gruppe | 17 | 93 |
| WPD | 19 | 155 |
| WSB Neue Energien GmbH | 29 | 211 |
