Circor is the umbrella organisation of a number of companies including Allweiler and Imo.

The Imo brand also covers Imo US and Imo AB.

Imo AB, a Swedish company, currently produces its pumps at Allweiler's factory in Germany. Imo US is an American factory that produces both 2 and 3 shaft screw pumps.

Overall, almost all pump technologies are produced under the Circor platform. Please contact Copenhagen Pump for clarification on the individual brands under Circor.