
Siili fits large companies and public-sector organizations that need a Finnish engineering partner for AI transformation, digital engineering, modernization, platforms, cloud and data-intensive services.
Official cases include LähiTapiola, Finavia, Alma Media, University of Oulu, Honkajoki, Wärtsilä, HMS Networks, Microsoft, Teosto, SSAB and Vaisala.
Siili states it was founded in 2005, lists around 900 experts on its about page, and has multiple Finnish offices. The profile uses the Helsinki office address from the official contact page.