I. H. Rubens Fabrikker was a textile company based in Copenhagen, Denmark.
The factory was demolished in the 1940s and has now been replaced by Hostrups Have, a Functionalist housing estate arranged around a central greenspace.
Ruben was articled to his father and continued the business after his death on a new concession from 1810.
In 1859, Ruben established a cotton mill at Rolighedsvej and the factory was expanded several times over the next few years.
Bernhard Tuben's widow Ida Ruben (née Coppel, 1845–1913) continued the operations from 1896.