Kelt Amplification (keltamplification.com) is a small boutique amp builder based in Lorient, in Brittany right next to the sea in France. The founder Thierry Labrouze hand wires all the tube amps he has been building for the best for close to 10 years now. Here is a review of his flagship, the MostrO.
The MostrO is a 50W all tube amp with two channels. Check it out!
MostrO Kelt Amplification review