Woningborg
From PassREg - Solutions Open Source
General
Woningborg is a Dutch quality insurance for private home-owners. Associated builders work under an assurance so the home owners are guarantied to get the expected quality. Woningborg is anticipating to energy-efficient buildings and by now is heading for an additional assurance for passive house qualification.
Read more
http://www.woningborggroep.nl/html/14/woningborg-certificaten/