Grøndahl & Søn Forlag was a Norwegian publishing house established in 1812.
Christopher Grøndahl (1784–1864) started it as a print in 1812, before it started commercial publishing in 1875.
[1] In 1925 the company expanded into piano manufacturing when it purchased Hals, an Oslo-based piano company.
The latter company was merged into Cappelen in 1999.
[1] This Norwegian corporation or company article is a stub.