Foxwear
This is just one guy as far as I know. The stuff you order from him is highly customizable, but still affordable. He will work with you to get exactly what you want. His gear gets good reviews on the forum.

Ibex
They have mostly wool stuff. It's similar to the apparel that Icebreaker and Smartwool make, but Ibex actually makes a lot of their stuff in the USA. I own a lot of pieces from them, and I like them all.

Showers Pass
This company is based in Portland, and they make stuff primarily for the rain, but some of their jackets may work for cold weather as well.

Rapha
I have the Rapha Softshell, and it's a nice jacket. I didn't pay full price though, and neither should you. I wouldn't buy anything of theirs unless you're in love or you get a good deal.