Tietoevry Keilalahti Campus/Microsoft Talo (formerly named Nokia House) is the head office building of Tieto[1] and Microsoft Finland,[2] located in Keilaniemi, Espoo, just outside Helsinki, the capital of Finland.

The campus was built between 1995-1997 as headquarters for Nokia by architect Pekka Helin.

[3] They owned the building up until December 2012, when it was announced that it had been sold to Finland-based Exilion for €170 million.

Nokia continued using the building as its head office, leasing it on a long-term basis.

[8] Microsoft Mobile closed down in 2017 when its assets were acquired by HMD Global, however, Microsoft is still a major tenant in the building complex, where they usually held events like the Keilaniemi Toastmasters until 2021.