High Quality Content by WIKIPEDIA articles! The NLR Air Transport Safety Institute (NLR-ATSI) is a research and consultancy organisation embedded in the National Aerospace Laboratory of the Netherlands (NLR). NLR-ATSI is one of the largest institutes of its kind in Europe. The institute was officially opened by Prof. Pieter van Vollenhoven on October 31, 2007. NLR-ATSI is a not-for-profit organisation with 32 employees.