"4-stream consulting was our trusted partner in Germany in the certification procedure or our wind turbine by DNV-GL and for our contacts with German wind power developers and maintenance providers."

General Manager

Business Development & Sales

Energy Systems & Marketing

Hitachi Ltd., Tokyo, Japan

"4-stream consulting has advised our CEO and the management board of our international company group for changing our organisational set-up, assessing the risk and contractual terms of large plant orders and closing out EPC projects. Because of the valuable help, we have entrusted 4-stream consulting with delegating an interim management board member for running our operations."

Chief Executive Officer

KHD Humboldt Wedag International AG, Cologne, Germany

"4-stream consulting conducted a fundamental technology and market analysis for us and elaborated concrete proposals for extending our product portfolio from conventional power plants into sustainable energy components and systems like fuel cells, heat pumps and thermal energy storages."

Chief Executive Officer

Mitsubishi Hitachi Power Systems Europe GmbH, Duisburg, Germany