1926 ”Havnens Maskinværksted A/S” was established and the main occupation was repair and maintenance of fishing and cargo vessels.
1988 Name changed to ”Wärtsilä Diesel Danmark A/S”.
1990 ”Wärtsilä Diesel Danmark A/S” was organized into 5 product areas; Energy, Marine, Ships Repair, Spare Parts and Propeller & Shaft.
1994 “Wärtsilä” acquires 100% ownership of “Wärtsilä Danmark A/S”.
1998 “Wärtsilä NSD Danmark A/S” acquires the covered floating dock in Hirtshals.
2002 “Wärtsilä Danmark A/S” acquires the company “JMC Marine A/S”. This company's becomes part of the Ciserv Group in Wärtsilä Corporation.
2005 Wärtsilä acquire “Deutz Marine Service” for medium and large marine engines.
2006 Ciserv merged and renamed into “Wärtsilä Danmark A/S”.
2006 ”Wärtsilä Danmark A/S” establishes a sales office in Copenhagen.
2008 Wärtsilä Danmark A/S acquire I. C. E. A/S, and the company changes name to ”Wärtsilä Boiler Services – Denmark A/S”
2009 Wärtsilä Boiler Services – Denmark A/S changes name to Wärtsilä Danmark A/S.
2012 "Wärtsilä Denmark A/S" restructures for a more flexible operation
2012 "Wärtsilä Corporation" acquires Hamworthy Svanehøj A/S.
2013 Wärtsilä Denmark A/S moves to new premises in Nørresundby near Aalborg.
2014 Wärtsilä Corporation purchases L-3, which includes Lyngsø Marine in Denmark with specialty in electrical and automation.
2016 Wärtsilä acquires Eniram, a Finland-based technology company, providing the marine industry with energy management and analytics solutions
2017 Wärtsilä acquires Puregas Solutions, provider of turnkey biogas upgrading solutions
2018 Wärtsilä divests its pumps business – Wärtsilä Svanehøj
2018 Wärtsilä acquires Transas to accelerate its Smart Marine Ecosystem vision via ship tools and machine learning.