[LovinOurYorkies]

Here's a list of what I've gathered so far (info was obtained from the product websites):

Old Mother Hubbard is made in USA with human grade ingredients.

Kona’s Chips "is a treat company that is "produced, processed, and packed" in the US. This company was started after a six-month old pomeranian named Kona became ill from eating imported, dried, chicken jerky treats. Kona’s Chips treats are made from USDA chicken breasts produced in California."
　
Wysong "Made in the USA at Wysong manufacturing facilities with ingredients from USDA and FDA approved domestic sources."
　
Wet Noses Dog Treats "are 100% organic and made in USA with USA sourced ingredients - sold at petco Wet Noses Organic Little Stars training treats in cheese, chicken, and sweet potato flavors."
　
Zukes Mini Treats "are USA made with USA sourced ingredients (except Wild Rabbit, Lamb and Venison, which are supplied from New Zealand). Based in Durango, Colorado, the Zuke’s brand boasts wheat, soy, and corn free treats, and their chicken and beef sources are from the US, where the treats are made."

Life's Abundance Training Treats "are proudly made in the USA with all natural, human-quality American ingredients."
　
Blue Buffalo "All of BLUE’s Chicken Jerky Treats are made in the USA and the meat is sourced exclusively from USA meat suppliers. We do not use meat from China, or anywhere in Asia, in any of our products."

Cloud Star Dog Treats "are made in USA with USA sourced ingredients." jttp://www.cloudstar.com/prodcat/dog-treats.asp

JW Pet Megalast toys "are made in USA" http://www.jwpet.com/dog/megalasttoys.html

Nylabone is USA made
　
Kong "All of our rubber KONG Classic, Extreme, Senior, and Puppy toys, the KONG Genius line, the KONG Wobbler, and all of our dog treats are Made in America except for the IQ Treats which are made in Denmark."
　
Get Naked Dog Biscuits "are Made in the USA. Wheat Free, Corn Free, Soy Free. No added gluten, salt or sugar. DHA & EPA from Herring Fish Oil. Fortified with vitamins & minerals."

This site has a great list of bully sticks and treats made in the USA:
http://www.bestbullysticks.com/home/bbs/smartlist_86/made_in_the_usa.html