My Mojo Audio DejaVu server/streamer was made in the USA and sounds awesome. It replaced an Antipodes DX3 server. Unfortunately, Mojo Audio has stopped manufacturing servers so they could focus on their DACs, but they do carry the 432 EVO brand of server/streamers, which may be manufactured in Germany.
There are some pretty good server/streamer choices with good service options that are made outside of the USA, such as the Antipodes server/streamers from New Zeeland.
If you really need to buy American, you might look at Small Green Computer or Baetis Audio. There are probably others you could consider too.