• Member of BNA, Bond van Nederlandse Architecten (Union of Dutch Architects).
  • Member of Stawon, Stichting Architectenonderzoek Wonen en Woonomgeving (Foundation for Architectural Research in Dwellings and the Dwelling Environment).
  • HM Architects is a certified member of the IWA, Vereniging van Integraal Werkende Architectenbureaus (Association of integral working architect agencies)
  • HM Architects is certified by Erkenning Leerbedrijven (Recognition Trainee companies) issued by Bouwradius.