The National Carbon Company was founded in 1881 by W. H. Bourton and Willis H. Masters in Cleveland, Ohio. Its industry is chemicals and materials science and its headquarters is in Parma, Ohio. It merged with Thomson-Houston , Standard Carbon , and Faraday Carbon in 1890. It merged with the Union Carbide Company in 1917 and it was known as the Carbon Products Division of Union Carbide.
It had a Canadian subsidiary: Canadian National Carbon Company which was headquartered in Toronto, Ontario.
Boulton Carbon Company (1881-1886)
National Carbon Company (1886-1917)
Carbon Products Division of Union Carbide (1917-1989)
UCAR Carbon Company (1989-2002)
GrafTech International Holdings, Inc. (2002-)
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