I think this list encourages fraud.
There are only two companies in your list that have actually shipped:
BlackArrow and BitFountain.
The others:
KNCMiner - science fiction story, they have not shipped anything they do not even have pictures of their products.
t13hydra, terrahash, ryepdx, burnin - rely on avalon ASICs which have not yet been produced.
Butterfly labs - have taken orders of millions of dollars, have not shipped in 1 year, most likely a fraud.
Our company has tried to purchase 30000 IC from Avalon. The law in China is to sign a contract to purchase the merchandise. We asked them for this and they gave us a bogus address in Beijing and confessed that they do not have a company. For this reason I would be very careful regarding the Avalon ASICs.
Please note that "company" you are talking about developed the miner you are reselling. And technically speaking, chips have shipped in the form of Avalon miners.
I would separate the OP between FPGA and ASIC systems, add GHs/W, and add the following FPGA miners:
http://www.modminerquadstore.com/http://www.enterpoint.co.uk/cairnsmore/cairnsmore1.html*disclaimer: This post is not an endorsement of any of the companies mentioned.