From The Hague:
Take the A13 motorway to Rotterdam, follow the Rotterdam ring road (East)/Dordrecht A20 motorway, and then take the 'Centrum' (city centre) exit. 

From Dordrecht:
Take the A16 motorway to Rotterdam, cross the Van Brienenoordbrug bridge, follow the Rotterdam ring road/The Hague A20, then take the 'Centrum' (city centre) exit.

From Utrecht:
Take the A20 motorway to Rotterdam, follow the Rotterdam ring road/The Hague A20, then take the 'Centrum' (city centre) exit.

From Hook of Holland
Take the A20 motorway to Rotterdam, follow the Rotterdam ring road (North)/Utrecht A20, and then take the 'Centrum' (city centre) exit.

Public Transport
If you arrive by train, take the exit "Centrum" at Rotterdam Central Station. Cross the "Stationsplein" to the left and turn left to the "Weena". Behind the building of Nationale-Nederlanden you will find Unilever Headquarters. Progress is situated on the 6th floor.

Address: Weena 455, 3013 AL Rotterdam
Telephone: 010 - 217 4475