I was an employee at Deering. Yes they're most definitely Scientologists, but they mostly keep their business apart from their belief systems.

They were sending out their guides in every purchase of a Deering banjo, but they realized that it irritated a lot of people so they stopped doing it (more or less).

Janet and Greg, the owners, while they have their odd religion--are super super nice, friendly, 'mom and pop' kind of people. Really, they're ridiculously nice, normal people and in my experience, never tried to push anything Scientology related on me.

The quality and workmanship of the products is amazing--they pay incredible attention to detail, and having seen their process from the inside--they really do a super job.