These links are personal, in the sense that I personally have worked with the people and businesses listed here and would not hesitate to recommend them!
Studio G Brooklyn – Amazing studios start with amazing people. Where would I be without them?
Audio Power Tools – Banned in GC, Dan and Blue set out to sell the best damn pro audio gear they could find!
Leeds Radio – In Brooklyn since 1923, so of course they have that vintage part for the obscure unit you are fixing.
Small Bear Electronics – A newer business with newer parts. Super DIY friendly folks.
Ronin Applied Sciences – Tired of clones? Refreshing new designs in mics, preamps, and ???