By car:

On the highway from Lausanne, Neuchâtel or Berne, go out at "Yverdon-Sud"

Micro-Beam is just a few meters behind the BP pertrol station (green and yellow)

By train: SBB/CFF

From the rail station of Yverdon-les-Bains, take bus number 2 to Y-parc (terminus).
Then walk about 400m in the direction of the city center.
Micro-Beam is just a few meters behind the BP petrol station (green and yellow), which you can see from far.

You can also have more detailed information using the yellow pages

From space: