National Aluminium Company was created in 1981.
Irish Aluminium Company was created in 1964.
Kinney National Company was created in 1966.
National Cordage Company was created in 1887.
National Arms Company was created in 1865.
National Land Company was created in 1846.
National Carbon Company was created in 1886.
National NuGrape Company was created in 1937.
National Company Building was created in 1924.
National Life Insurance Company was created in 1848.
American National Insurance Company was created in 1905.
National Roads Company of Israel was created in 2004.
British National Opera Company was created in 1921.