| ABO-Wind | 89 | 665 |
| Acciona Energia | 313 | 8,180 |
| Acciona Energia/SeeBA EnergyFarming | 6 | 52 |
| ACS | 5 | 149 |
| Adelis | 9 | 73 |
| Aerowatt | 28 | 103 |
| AES | 15 | 905 |
| Air Energy | 14 | 132 |
| Airtricity | 10 | 722 |
| Alerion | 13 | 434 |
| Altus | 7 | 70 |
| Asja Ambiente Italia Spa | 5 | 56 |
| Aspiravi | 19 | 101 |
| B9 Energy | 8 | 114 |
| Babcock & Brown | 6 | 643 |
| BMR | 21 | 159 |
| BP Alternative Energy | 6 | 735 |
| Caithness | 6 | 519 |
| Cannon Power Corp. | 7 | 398 |
| Catavento | 7 | 23 |
| Cavalum | 7 | 19 |
| China Datang Corporation renewable Power Co | 27 | 884 |
| China Power Investment Corporation | 7 | 200 |
| Cielo Wind Power | 10 | 482 |
| CLP Group | 34 | 1,684 |
| CNR | 5 | 43 |
| Community Wind Power Co. | 15 | 107 |
| Compagnie du Vent | 31 | 298 |
| Consulting Engineers Group | 16 | 310 |
| ContinoWind | 24 | 173 |
| Coram Energy | 5 | 133 |
| Cornwall Light & Power | 6 | 16 |
| Das grüne Emissionshaus | 9 | 184 |
| Denker&Wulf | 94 | 605 |
| Dezentrale Energie | 32 | 111 |
| Dirkshof Erneuerbare Energien GmbH | 5 | 73 |
| Dong Energy | 20 | 1,522 |
| Duke Energy | 14 | 1,174 |
| e.n.o. Energy | 39 | 225 |
| E.ON Climate Renewables | 42 | 3,531 |
| e3 GmbH | 11 | 118 |
| EAB New Energy Group | 28 | 182 |
| Eco Power Corporation | 34 | 136 |
| Eco Wind Power Ltd | 6 | 29 |
| Ecogen Ltd | 5 | 35 |
| Ecotricity | 23 | 97 |
| EDF-EN | 109 | 4,949 |
| EDF-EN/Vergnet | 5 | 13 |
| Edison Mission Group | 11 | 672 |
| EDP Renovaveis | 48 | 3,563 |
| EED | 5 | 22 |
| Electrabel | 12 | 83 |
| Electrawinds | 16 | 125 |
| Endesa | 5 | 117 |
| Enel Greenpower | 18 | 561 |
| ENEOP | 21 | 328 |
| Enercon | 23 | 295 |
| Energie & Umwelt Dienstleistungen | 21 | 55 |
| Energieanlagen FB | 15 | 50 |
| Energiekontor | 65 | 450 |
| Energiequelle | 8 | 54 |
| Energieteam | 17 | 174 |
| Energy Unlimited | 5 | 30 |
| Eneria | 5 | 50 |
| Enernova | 11 | 147 |
| Enersis | 32 | 554 |
| Enertrag | 19 | 226 |
| Enova | 7 | 55 |
| Enron Wind Corp. | 8 | 519 |
| Eole Generation | 17 | 243 |
| Eole-Res | 29 | 445 |
| Eolfi | 13 | 101 |
| Eolica Guadalteba | 9 | 158 |
| Erelia | 15 | 194 |
| Eurus Energy | 24 | 907 |
| EverPower | 6 | 363 |
| EWS Consulting | 25 | 204 |
| Exelon | 29 | 688 |
| Exergy Development Group | 16 | 530 |
| First Wind | 18 | 984 |
| Fortech | 5 | 25 |
| Foundation Windpower | 5 | 7 |
| Fred Olsen Renewables | 9 | 363 |
| Gamesa | 40 | 882 |
| Generg | 16 | 402 |
| Geo Mbh | 33 | 197 |
| Germania Windpark | 48 | 306 |
| GEWI | 10 | 31 |
| Global Wind Power | 40 | 361 |
| Guangdong Yudean Shibeishan Wind Power Development Co. Ltd | 6 | 143 |
| Haus der Windenergie | 5 | 34 |
| Hebei Hong-Song Wind Power Share Holding Ltd | 7 | 205 |
| Heilongjiang Huafu Power Investment Co. Ltd | 7 | 74 |
| Heritage Sustainable Energy | 7 | 99 |
| Huaneng New Energy Industrial Co. Ltd | 5 | 163 |
| Iberdrola Renewables | 68 | 4,782 |
| ImWind | 19 | 107 |
| Infigen Energy | 10 | 617 |
| Infinis | 7 | 80 |
| Infinivent | 17 | 159 |
| Ing. Henning Holst | 16 | 84 |
| Inner north | 23 | 190 |
| Innovent | 29 | 174 |
| Intervent | 11 | 96 |
| Invenergy | 44 | 3,538 |
| IWS | 17 | 107 |
| JMB Energie | 10 | 69 |
| JPEE | 6 | 69 |
| Juhl Wind | 21 | 206 |
| Juvent SA | 5 | 24 |
| Juwi | 73 | 530 |
| K S Oils | 6 | 43 |
| Kenetech | 9 | 420 |
| Kotzebue Electric Association | 8 | 3 |
| LongYuan | 65 | 1,595 |
| LuNeng | 8 | 23 |
| Luneng Rongcheng Wind Power Company | 5 | 60 |
| Maïa Eolis | 20 | 198 |
| MaoLin | 6 | 51 |
| Martifer Renewables | 13 | 203 |
| MBBF | 36 | 248 |
| MidAmerican Energy | 11 | 963 |
| Midwest Wind Energy | 7 | 927 |
| Mitsuuroko Green Energy | 6 | 52 |
| MSPL Limited | 8 | 237 |
| Mytrah | 11 | 648 |
| Nanao Wind Power | 7 | 10 |
| Net Service GmbH | 6 | 24 |
| NewEN | 10 | 50 |
| NextEra Energy Resources | 69 | 6,495 |
| Ningxia Electric Power Group Co. Ltd | 9 | 208 |
| Ningxia Tianjing | 5 | 50 |
| Noble Environmental Power | 10 | 963 |
| Nordex | 38 | 741 |
| Northern Alternative Energy | 13 | 68 |
| Notus | 30 | 255 |
| Nuon Renewables | 8 | 92 |
| O2 | 7 | 88 |
| OKOENERGIE GmbH | 9 | 66 |
| Orion Energy LLC | 6 | 874 |
| Ostwind | 79 | 673 |
| P&T Technologie | 11 | 82 |
| Pacific Hydro | 16 | 230 |
| Pacificorp | 9 | 693 |
| Performance Services | 5 | 4 |
| Plan 8 | 43 | 86 |
| Plan8 | 5 | 26 |
| PNE | 17 | 191 |
| Polat Enerji | 10 | 334 |
| Poweo | 37 | 319 |
| PPM Energy | 17 | 1,556 |
| Primus Energy | 5 | 37 |
| Projekt GmbH | 7 | 67 |
| Prokon | 46 | 439 |
| Qixia Ruilin Wind Power Go.Ltd. | 6 | 32 |
| RDE | 6 | 70 |
| REA Düren | 6 | 12 |
| REG Windpower | 5 | 37 |
| Renerco | 25 | 400 |
| Renewable Energy Services Limited | 7 | 26 |
| Renovalia | 8 | 353 |
| RES | 48 | 2,441 |
| RES/B9 Energy | 10 | 112 |
| Rokas | 16 | 217 |
| RPC | 5 | 40 |
| RWE | 40 | 1,649 |
| Sacramento Municipal Utility District | 5 | 226 |
| Scottish & Southern | 16 | 776 |
| Scottish Power | 16 | 1,351 |
| SeaWest | 30 | 497 |
| SeeBA EnergyFarming | 149 | 1,048 |
| SFE Française d’Eoliennes | 12 | 171 |
| Shenyang Jinshan Energy Co. Ltd | 5 | 64 |
| SL Windenergie | 20 | 73 |
| Sofiva | 7 | 62 |
| SPE | 9 | 57 |
| Sustainable Energy Developments | 12 | 7 |
| Suzlon | 53 | 1,201 |
| Tecneira | 20 | 210 |
| Terra-Gen Power | 9 | 1,440 |
| Terranova | 8 | 140 |
| Teut | 28 | 175 |
| Théolia | 23 | 251 |
| TransAlta | 19 | 1,050 |
| Umweltkontor | 9 | 54 |
| Valeco | 9 | 78 |
| Valorem | 32 | 436 |
| Vattenfall | 35 | 1,174 |
| Ventis | 9 | 77 |
| Vento Ludens | 8 | 20 |
| Ventotec | 50 | 569 |
| Vergnet | 12 | 148 |
| Veronagest | 8 | 314 |
| Verve Energy | 10 | 98 |
| Volkswind | 53 | 485 |
| Vortex Energy | 10 | 178 |
| VSB Energies Nouvelles | 15 | 146 |
| Wallenborn Projektentwicklung | 6 | 85 |
| WEA GmbH | 10 | 130 |
| WEB Windenergie AG | 8 | 124 |
| WES-IBS | 5 | 20 |
| West Coast Energy | 29 | 593 |
| WestWind | 15 | 132 |
| Widemag | 25 | 128 |
| Wind Prospect | 78 | 1,076 |
| Wind7 | 21 | 81 |
| Windenergie | 6 | 71 |
| Windenergie Wenger-Rosenau GmbH | 14 | 46 |
| Windinvestor | 30 | 47 |
| Windpark nördliches Emsland GmbH | 7 | 66 |
| Windpower GmbH | 11 | 22 |
| Windstream | 10 | 33 |
| Windstrom | 50 | 508 |
| Windvision | 7 | 127 |
| Windwärts | 34 | 241 |
| Winkra | 16 | 151 |
| Winpro | 8 | 64 |
| WKN AG | 82 | 1,079 |
| Wotan Gruppe | 25 | 128 |
| WPD | 268 | 2,269 |
| Xinjiang Tianfeng | 5 | 159 |
| Xinjiang Wind Energy Liability Co..LTD. | 16 | 40 |
| Yantai Dongyuan | 5 | 55 |
| Yingkou Wind Power Generation | 12 | 34 |
| Zhangjiakou Great Wall Wind Power Co.Ltd | 5 | 10 |
| Zond Systems | 9 | 168 |
| Zopf GmbH | 36 | 55 |
