UL International Germany | Germany | | Ulbrich of Austria | Austria | 
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Ulrich Rotte | Germany | | ULT | Germany | | Ultrasonic Systems | USA |
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ULVAC | Germany | | Umicore | Germany |
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Unicorn Electronics (Europe) | United Kingdom |
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Unitech Printed Circuit Board | Taiwan | | United Solar Ovonic | USA | | Universal Energy | China |
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UPSOLAR | France | | USK Karl Utz Sondermaschinen | Germany | | VACOM Vakuum Komponenten & Messtechnik | Germany | | Vacuum Process Technology | USA | | VAT Deutschland | Germany | | Vector Japan | Japan | | Veeco Instruments | France |
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Vela Solaris | Switzerland | | VESUVIUS FUSED SILICA | France |
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Vetro Solar | Norway | | viasys Intelligent Video | Germany | | Vikram Solar | India | | Vincent Industrie | France | | Viscom | Germany |
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Vision Components | Germany | | VITRONIC Dr.-Ing. Stein Bildverarbeitungssysteme | Germany |
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Voetsch Industrietechnik Umweltsimulation & Waermetechnik | Germany | | vogt group | Germany |
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Voltaix | USA | | voltwerk electronics | Germany | | VON ARDENNE | Germany | 
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Voss electronic | Germany | | Waaree Energies | India | | Wacker Chemie | Germany | | Wacom electric | Japan | | Washington Mills | Norway | | Watlow | Germany | | Wattpic | Spain |
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Webel Solar | India | | WEICON | Germany | | Weiss Umwelttechnik Simulationsanlagen - Messtechnik | Germany | | Welantech International | Austria | | WENDT | Germany | | WEP | Germany | | Wieland Electric | Germany |
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Williams Advanced Materials | USA |
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WIP - Renewable Energies | Germany |
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Wirtschafts-Assekuranz Makler | Germany |
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WISTA-MANAGEMENT | Germany | | WITec | Germany |
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WOOIL HIGHTECH | Korea, Republic of | | WORLD BC | South Korea | | Wuhan Intepower | China | | Würth Solar | Germany |
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Wuxi Jiacheng Solar Energy Tec | China | | Wuxi Saijing Solar | China | | Xantrex Technology | Germany | 
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XENON Automatisierungstechnik | Germany | | XGROUP | Italy |
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Xi’an Longji Silicon Technologies | China |
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Xiamen Clenergy Technology | China | | Xinyi Ultraclear Photovoltaic Glass | China | | YAMAICHI ELECTRONICS Deutschland | Germany |
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Yangzhou Tianhua PV-Tech | China | | Yinkou Jinchen Machinery | China | | Yingli Green Energy Holding | China | 
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YOLE DEVELOPPEMENT | France | | Yuming International | China | | Yunnan Tianda Photovoltaic | China |
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Zeiss, Carl Microimaging | Germany | | Zhangjiagang Talen Technology | China | | Zhejiang Aurora PV Solar | China | | Zhejiang BLD Solar Technology | China | | Zhejiang Guangyi Optical Energy Technologies | China | | Zhejiang Jinggong Sci. & Tec. | China | | Zhejiang Lingben Machinery & Electronics | China | | Zhejiang Shangcheng Solar Technology | China | | Zhejiang Trunsun Solar | China | | Zhejiang ZG-Cells | China | | Zimmermann & Schilp Handhabungstechnik | Germany | | znt Zentren für Neue Technologien | Germany | | Zweckverband Technologiepark Mitteldeutschland | Germany | | Zytech Solar | Spain | |
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