From Arlanda:
Take the motorway to the exit Rotebro. Go right under the motorway and then right again by the traffic light to Norrviken. Then take the second road exit to the right. Turn left and you will see a yellow building and the sign Synopsys.

From Stockholm:
Take the motorway to the exit Rotebro. Go right by the traffic light to Norrviken. Then take the second road exit to the right. Turn left and you will see a yellow building and the sign Synopsys.