Roisin Reidy 18 Feb 2013 More in Filter Media New head office for Ahlstrom News The company’s current head office has been located in Salmisaari in west Helsinki since 2007.The new Ahlstrom head office address is:Ahlstrom OyjPO Box 329Alvar Aallon katu 3 CFI-00100 HelsinkiFinland
