SIM-Holland, founded in 1933, has her base in Sliedrecht, the Netherlands. With a large stock of parts, a well equipped work shop, a beautiful office and dedicated people each specialised in their own field we are capable of fulfilling everybody’s wishes.

aggregaatMobile energieMain products for this site are marine-, commercial- and RV generators and VDC equipment (Victron charger / inverter) systems in every form and / or shape. SIM-Holland delivers mobile power solutions for every market segment.

SIM-Holland has been Onan distributor since 1963 for the Netherlands. Besides distributor for the Netherlands we also do the distribution for Belgium (SIM-Belgium, Lummen) and Germany (SIM-Deutschland). SIM is well experienced in the field of installing mobile generators from Onan and / or VDC equipment (complete systems). Examples of some of our installations can be found HERE.

onan computerIn cooperation with you or you’re installation company we execute the entire project, from power audit and design to commissioning. Also after the project phase you’re installation will be in good hands with us for service and / or planned maintenance at our workshop or on location. For each generator, charger or inverter we have the right advise. For further information you can send us an e-mail via the contact form or have a look at our web site,