DAI Rome and Madrid

ÖAW and OREA Vienna 

The Archaeological Society at Athens

Universities: Berlin, Bern, Mainz, Naples, Sohag, Salzburg, Warsaw, Zurich

Brandenburg State Office for the Preservation of Historical Monuments and Museum

Schleswig-Holstein State Archaeological Office

Hildesheim, City Archaeology

eastern atlas (Geophysical Prospektion) 

Ulrike Uhlig (restoration)  

Dr. Mirco Brunner

private excavation companies in Berlin and Brandenburg

construction research: KVO, Dirk Schumann