In 1898 Societé d’Electricité et automobiles Mors was founded in France, likewise in 1900 NIF (Netherlands Instruments Factory), later to become Nieaf (Netherlands Instruments and Electrical Apparatus Factory) in 1913.
In 1902 Smitt was founded in the Netherlands and in 1984 merged with Nieaf. Dardel Industries acquired Nieaf-Smitt in 1990 and the Mors Relay Division in 1996.
In 2003 Mors Smitt Technology USA was created and in 2008 MorsSmitt Asia in Hong Kong and Zhongshan Relay Limited in China were founded. In 2011 STS Rail was acquired.
In 2012 Mors Smitt Group is acquired by Wabtec corporation.