Is Shindo now Tone Arts Laboratory?

Tone Imports in NY was the US importer; Pitch Perfect on the West Coast was a big dealer of Shindo and still lists trade ins. 

I don't think it is impossible to get them serviced but wasn't one of the selling points of the gear the select use of vintage parts? That could present an issue in sourcing.

A fellow I knew from the audio fora a few years ago bought a complete high end system of Shindo --was absolutely delighted with it after going through a lot of high-end components in a fairly short time and steep learning curve. Last I knew, he sold everything and moved out of the country--young guy too. Interesting life. 

No idea.  Doesn't much matter about the current status of Shindo as he used  beautiful point to point wiring and construction that's very accessible and components that many solid technicians can get their hands on if needed.  The gear is easily repaired.  Some components are surprisingly common and inexpensive that Shindo found to sound best. Sure, there may be some parts such as tubes especially that may be hard to source but many owners have a good stock on hand. Even so, there are often options for tube replacements..

Ken Shindo RIP.❤️