For a long time, the Atlantis was built in Japan, then some production shifted to the US, they were built by Waterford , I think, And some of them are built in Taiwan, the new Japan, as some people say. Bicycle manufacturing is sensitive to labor costs and exchange rates.
I never bought a Rivendell; my Bridgestones still are going strong, I have bought parts from them :and have gotten lots of ideas from the Rivendell Readers.
There are still a lot of us who like centerpull rim brakes. My recommendation to Rivendell would be to sell some of their models with brazed on studs for centerpulls..