The story
RIH was founded in 1921 by Willem (Wim) and Joop Bustraan at Westerstraat 150 situated in the working-class neighborhood Jordaan, Amsterdam. In 1928, Willem Bustraan Jr. joined the business with his father and his uncle.
The two brothers handed over the business to Willem Jr. in 1948. He then teamed up with Wim van der Kaaij who had learned the trade from an early age always helping in the shop as an apprentice. He was the sole owner of the business and still built frames until into his 70s, mostly track (racing) bikes. He died in 2014.
Through the 1960s Fongers built lightweights in series under the RIH name, but this cooperation ended when Batavus-Intercycle acquired Fongers in 1970.
About that time, in 1972, RIH started a collaboration with the Cové Fietsfabriek from Venlo. Later, Cové acquired the right to sell normal bicycles under the brand name RIH on the market.
The company was the first Dutch frame builder that could build lightweight frames. In 2014, the firm moved to Gedempt Hamerkanaal 77, 1021KP HL Amsterdam (NH) (nowadays RIH Sport Amsterdam).
From Wikipedia’s article on RIH, shared under CC BY-SA 4.0.4