There IS a Domestic Fair Trade Association

and you can see a list of its members here:
http://www.dftassociation.org/membership

Looks like this group came together less than two years ago. There's a detailed vision on the web site, too.

The Food Alliance includes the social justice dimensions of sustainability in its North American certification program.

http://foodalliance.org/

But it's got to be a challenge. The Local Fair Trade Network folded before I found them. They've left behind, though, a list of organizations with related causes. I tend to judge websites by their links, and this looks like quite a comprehensive list.

http://www.localfairtrade.org/