Nilfisk is a supplier of professional cleaning equipment in both industrial, commercial and consumer markets.

Originally the company produced electrical engines as the basic component in ventilators, kitchen elevators, drilling machines and, later on, the Nimbus motorcycle.

In 1989 NKT Holding, listed on the Copenhagen Stock Exchange, bought Fisker & Nielsen.

[8] Nilfisk produces a variety of machines in their Brooklyn Park, Minnesota production facility.

In 2016, their robotic floor scrubbers were considered among "the nation's most advanced" by the Star Tribune.