Contact us

You can contact Sigma as follows:

Visiting address:

Room 00.528
Heyendaalseweg 135
6525 AJ Nijmegen

Telephone:+31 6 28981845
E-mail address:

Postal adres:Postbus 9010
6500 GL Nijmegen
Address for parcels:Toernooiveld 5
6525 ED Nijmegen

The Board is always present in the board rooms during the scheduled memberhour on Tuesday during the lunchbreak, and is always reachable via the email address 



From Nijmegen Central Station, bus services run to the Nijmegen, Huygensgebouw stop. During rush hours, a number of these buses depart from a different bus stop. This special bus stop is located in front of Nijmegen Central Station.

Bus 10Destination Universiteit/HAN
Bus 11Destination Beuningen Aalsterveld via Station Dukenburg
Bus 12Destination Druten via Brabantse Poort
Bus 13Destination Wijchen via Noord
Bus 14Destination Nijmegen Brakkenstein via Elst West
Bus 15Destination Wijchen via Nijmegen, Hunnerpark
Bus 25Destination Groesbeek, Zuidmolen
Bus 300Heyendaalshuttle

Refer to this page for bus departure times from the Huygens building.  

For travellers on Arriva's Maas line it is quicker to get off at the Nijmegen Heyendaal station. All bus services mentioned above pass the Heyendaal Station. The Huygens building is within easy walking distance of the Heyendaal Station, so simply walking can often be quicker. Follow the route as indicated on the map below.