This was a pain point for me when I was first evaluating them too. I had to manually email support for them to inform me they run in GCP US West EDIT: see sibl

This was a pain point for me when I was first evaluating them too. I had to manually email support for them to inform me they run in GCP US West EDIT: see sibling comment from anurag. It appears they now list the regions they support in their documentation.