There is now pretty much only two companies that sell real miners to the public.
Bitmain and Canaan Creative.
Actually, just Bitmain - though Canaan has announced they're working on a next-gen miner, and the Innosilicon A4 should be shipping real soon (dunno what happened to the A3 though, have heard NOTHING about that for months).
In theory, BitFury and BW.com (LKEtc and co) could do so but they seem to be sticking with sales to "industrial" scale miners.
Canaan is selling A6's and are soon to be selling A7's to the public.
Bitfury and BW.com are only selling miners to industrial scale customers and they are also mining themselves.
Innosilicon A4 is an altcoin miner.
If we add altcoin miners into this then there is also Baikal Mini miner (X11), which I have four pcs. incoming.
I asked BW.com about the public release and at first it seemed like they were going to do it (my 1st e-mail conversation with them).
Then they suddenly cancelled and continued on the big scale road (my 2nd e-mail conversation much later after the first one).