The story
In 1991 Geldersche Streekvervoer Maatschappij (GSM) and the Dutch Railways started a transport integration project called Integratie Gelderland Oost. Integration between train and bus was the main goal. GSM later merged with Gemeentelijk Vervoerbedrijf Arnhem to form Gelderse Vervoersmaatschappij.
In 1999 Syntus commenced rail operations, Connexxion, Keolis and Nederlandse Spoorwegen each owning one-third. In 2007 Connexxion's share was purchased by Keolis and Nederlandse Spoorwegen. In 2012 Keolis purchased Nederlandse Spoorwegen's 50% share.
In October 2017, Syntus was rebranded Keolis Nederland with a new visual identity.
From Wikipedia’s article on Keolis Nederland, shared under CC BY-SA 4.0.4