My friend Eric Bradley has run Ampworks in NYC for 15 years and was Harry Kolbe's right-hand man for many years prior.
He has a long roster of A-list players as clients and is also an interesting artist and musician outside of his custom amp work.
I never really gave much thought to the fact that he's a black artisan in a white-dominated part of the (white, male dominated) industry until I read this thread, but it isn't just his skin color that makes him 'diverse', as far as I'm concerned. He's also just an interesting, well-rounded guy.
Eric does great work. I met him through 30th Street Guitars for whom he was doing amp work and he brought my beloved 1986 GK Micro combo back to life!