Here are some international HELIOS 3D users.

 

Customer/ CompanyCountry
ABB AG Germany
ABB S.A. Spain
ABO Wind AG Germany
Actensys Germany
Advantec Europe Sas France / Japan
AEE Renewables plc UK
Akuo Energy France
Afterfit K.K. Japan
ALPINE-ENERGIE Deutschland GmbH Germany
Amatec GmbH Germany
AMEC Kamtech Inc. USA
Ameresco Inc. USA
AMP Solar Group Inc. Canada
AquaSoli GmbH & CO. KG Germany
ArcTech Germany
BayWa r.e. renewable energy GmbH Germany
BEC SOLAR GmbH Germany
Beijing RETEC New Energy Technology Co. China
BELECTRIC Trading GmbH Germany
Birdseye Renewable Energy LLC USA
Black & Veatch USA
Blue Oak Energy USA
Borrego Solar Systems, Inc. USA
BORUSAN ENBW ENERJİ Turkey
Booth & Associates                              USA
Bouygues Energie & Services France
British Solar Renewables UK
c2energy GmbH Germany
Canadian Solar Solutions Inc. Canada
CJR Solar Portugal
Clenergy Global Projects GmbH            Germany
Companie Nationale du Rhone France
Conergy Asia & ME PTE LTD Singapur
Conergy Japan Japan
Consulting Engineers Group Inc. USA
CPIPEC China
Cypress Creek USA
DNP-Inženjering DOO Serbia
Downer Group Australia
DP Energy Australia Pty. Ltd Australia
EDP Renewables Spain
EDP Renewables USA
eeas Andy Stüwe Germany
EDF ENERGIES NOUVELLES France
efacec  Engenharia e Sistemas, S.A.  Portugal
ELSE Enerji Turkey
Empresa de Energia del Pacifico Columbia
EnBW Erneuerbare Energien GmbH  Germany
ENEL Green Power                              Italy
Energiekontor AG                                 Germany
ENERGISTO Germany
Enerparc AG Germany
Enerparc Inc. USA
Enermat Renewables Spain
ENGIE Green                                       France
ERS Energy Sdn Bhd Malaysia 
Ethical Power                                       UK
European Energy A/S Denmark
Fichtner Germany
Friedrich Montagen  Germany
Gildemeister energy solution GmbH Germany
Goldbeck Solar GmbH  Germany
GP Joule GmbH  Germany
GPSS Holding Co. Ltd. Japan
Gräss Engineering Germany
Greencells GmbH  Germany
Grid Parity AG Germany
groSolar  USA
Groupo Ortiz Spain
Guizhou Electric Design & Research Inst. China
hep energy GmbH Germany
HerBo GroenLeven BV                         Netherland
IBC Solar Germany
IBERICA Solar Spain
ILF Beratende Ingenieure GmbH  Germany
Jayme da Costa  Portugal
Juwi AG Germany
König Solar Austria
Krannich Solar Projekt GmbH  Germany
La Compagnie du Vent  France
Lahmeyer International GmbH Germany
LUXEL SAS France
M+W U.S. Inc. USA
MKG Montagebau Karl Göbel e.K Germany
Mott MacDonald Limited UK
Naturstrom AG                                     Germany
Nexamp  USA
Omexom  France
Panasonic Latin America S.A. Panama
PanelClaw Inc.  USA
Phoenix Solar AG Germany
Photovolt Development Partners GmbH Germany
Power Partners MasTec LLC  USA
Power Engineering Consulting JS. Company 3 (PECC3) Vietnam
Power Engineering Consulting Joint Stock Company 4 (PECC4) Vietnam
PowerSecure USA
Proenex Spain
ProSolarTec GmbH  Germany
Prosolia Portugal
Pro-Tech Energy Solutions                   USA
Quanta Power Generation (Intermountain Electric Inc., Quanta Solar Solutions, DG) USA
R&L Solar Solutions Co. Ltd Japan
RCR Energy Pty. Ltd. Australia
REC Systems Germany GmbH (REC Group) Germany
RES SAS                                             France
RODINA AG Ukraine
Saferay Holding GmbH Germany
SARL TALEV France
SBC Renewables Ltd (vorm. The Solar Building Company Ltd.) UK
SBY Israel
Scatec Solar Solutions GmbH  Germany
Shanghai Electric Power Design Institute China
Schletter GmbH  Germany
Schneider Electric France  France
Selina Technology & Management GmbH Austria
Sichuan Electric Power Design Consulting Co.,Ltd. China
Siconia Energy Consultants, S.L. Spain
SMEC Australia
Solaire Direct France
SOLAR PHILIPPINES Philippines
Solarig Global Service Spain
Solarfaktor GmbH Germany
Solarnet GmbH Germany
Soleg Solar Thailand
SOLSYSTEMS ENERGY GmbH Germany
Sonnadix Solar (Oriana/Horizon Energy, LLC) Puerto Rico
Sonnedix Spain
Sonnedix UK Services Limited UK
Southern Company USA
SPM GmbH                                          Germany
Sterling & Wilson                                  India
Strata Solar USA
SUNEL UK LTD IK
Sunel Energji Turkey
SunGrow Deutschland GmbH (China) Germany
Sunlink USA
Talesun Energy Solutions S.R.L. Italy
Tata Consulting India
TradeWind Energy USA
Univergy Int. S.L. Spain
Vattenfall AB / nuon Sweden / Netherland
Vectorcuatro Spain
Viridi RE GmbH Spain
Voltalia    Portugal
WElink Group                                       Italy
Westwood PS USA
WIRCON Gmbh Germany
WSP USA Inc. USA
X-ELIO Spain
Xibei Engineering Cor. Ltd. China
Yamasa Japan
Zenviron Pty. Ltd. Australia