Our partners

In order to strengthen its position in the energy market, the two shareholders MM Jean-Louis Guillet and Olivier Cherbuin created Greentech Holding. This holding brings together various companies that touch the entire energy value chain and include:

1989 - Baumann Constrelec SA : Manufacture of electrical panels

1991 - Protomat SA : Home Automation

2009 - Energybat Consulting Sàrl : CECB® Certificate, CECB Plus®, CAS

2010 - Soleol Suiza / Soleol Peru : Solar development in South America

2017 - Soleol Electricity : Electrical Installations

Investment companies : Contracting, roof rental, solar financing


With respect to the promotion of energy savings, Greentech Holding has chosen to strengthen its position on the market thanks to the acquisition of Protomat SA, which complements the expertise of EnergyBat Consulting. Total control oh the production of electrical panels, the heart of every solar installation, was achieved through the purchase of Baumann Constrelec SA. This represented the final touch to the vertical integration in our strategy aiming to cover all the trades in this high potential market.

With the different compagnies that make up our holding, and its structure, Greentech Holding SA finds itself 100% in phase with Switzerland's strategy and energy transition.