Are small dogs allowed on tour?

I can imagine a little dog fitting in your hands on a leash. The tour is pretty friendly.

Service animals are allowed on the tour but no other animals are.

I don't believe so. Didn't see any and that is very un-Seattle like unless specifically banned

Most likely not. I didn't see any on our tour or any of the tours before or after us.

If you can't bring drinks I doubt they let you bring a dog. We had to leave our drinking in the reception area and finish them quickly.

Not that I saw. I didn't ask either. Just email them or call should help.

Probably not