Sonnection has contributed to many projects, including but not limited to e-mail integration and migration projects, in various environments, for various numbers of mailboxes.

Customers of Sonnection range from small sites (50 mailboxes) to large sites (500.000+ mailboxes). A summary of these customers (subdivided into a government- and a commercial list, in alphabetic order) is shown below.

Government, semi-government and international organizations

  • Fach Hochschule Bochum, Bochum, Germany
  • Fach Hochschule Kiel, Kiel, Germany
  • Geomar, Kiel, Germany
  • Goethe Institute, München, Germany
  • Hogeschool van Amsterdam, Netherlands
  • Instituto Español de Commercio Exterior (ICEX), Madrid, Spain
  • International Telecommunications Union, Geneva, Switzerland
  • Kadaster, headquarters, Apeldoorn, Netherlands
  • Ministry of Agriculture, Wageningen, Netherlands
  • Police Region Utrecht, Utrecht, Netherlands
  • Stichting Wetenschappelijk Onderzoek Verkeersveiligheid (Scientific Research Traffic Safety), Leidschendam, Netherlands
  • Tennet TSO B.V., Arnhem, Netherlands
  • University Leiden, Faculty Social Sciences, Leiden, Netherlands
  • University Leiden, Faculty Biology, Leiden, Netherlands 

Industry, Publishers, Telco, ITC, Insurances etc.

  • Akzo Nobel, headquarters, Arnhem, Netherlands
  • Akzo Nobel Organon, Oss, Netherlands
  • Alcanet Benelux, Antwerp, Belgium
  • AMl Semiconductors (previously Alcatel MicroElectronics), Oudenaarde, Belgium
  • Arcadis, Arnhem, Netherlands
  • PinkRoccade Social Security, Amsterdam, Netherlands
  • Axima, Brussels, Belgium
  • Centraal Beheer/Achmea, Apeldoorn, Netherlands
  • Cerestar, Brussels, Belgium; owned by Eridania Beghin-Say
  • Communication Solutions Nederland, Leidschendam, Netherlands
  • DigiNotar, Beverwijk, Netherlands
  • Eurotunnel Consortium, Coquelles/Calais, France
  • ITT World Directories (Yellow Pages), Amsterdam, Netherlands
  • Nijgh Periodieken B.V., Schiedam, Netherlands
  • Philips Sound & Vision, Eindhoven, Netherlands
  • RAM Mobile Data, Maarssen, Netherlands
  • Reed Business Information, Doetinchem, Netherlands
  • Schweizer Buchzentrum, Olten, Switzerland
  • Scottish & Newcastle, Edinburgh, United Kingdom (owner of a.o. Centre Parcs holiday parcs and a large number of breweries in Scotland and England)
  • Springer Science and Business Media, Berlin, Heidelberg, Boston, New York, Vienna, Hong Kong, Tokio, Manilla, New Delhi, London, Dordrecht
  • Union Minière, Antwerp, Belgium
  • Wolters Kluwer Academic Publishers, Dordrecht, Netherlands
  • Vodafone, Maastricht, Netherlands