|Fate||acquisited by Holmenkolbanen|
|Founded||4 January 1912|
|Defunct||1 January 1920|
A/S Tryvandsbanen was a Norwegian company that constructed a rail extension nicknamed Tryvandsbanen ("Tryvann Line") of the Holmenkoll Line from Besserud (then Holmenkollen) to Tryvandshøiden station. The company was established 4 January 1912 and opened the Tryvann Line 15 May 1916. Tryvandsbanen was disestablished on 1 January 1920.
- Tvedt, Knut Are, ed. (2010). "Tryvandsbanen, A/S". Oslo byleksikon (in Norwegian) (5th ed.). Oslo: Kunnskapsforlaget. p. 581. ISBN 978-82-573-1760-7.
- Nilsen, Knut A. (17 February 1996). "A/S Holmenkollbanen 100 år: En historie om pågangsmot". Aftenposten (in Norwegian). p. 10.
- "A/S Tryvandsbanen" (in Norwegian). Oslo City Archive. Retrieved 4 January 2011.
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