I have reviewed many tshirt quilt providers and purchased many as gifts for friends and family. My top choice would be Project Repat because of their outstanding quality and customer service. The manufacturing facility is located in the United States in Fall River Massachusetts. The main office for Project Repat is located in Newton Massachusetts. They are truly a U.S. based company and the pricing is competitive to any of the other t-shirt quilt manufacturers out there.
For Project Repat Reviews check out their Facebook page they have over 1,000 reviews from happy customers.
According to this Forbes article Project Repat launched in 2012 making these quilts.
Here’s a video on how to buy Project Repat and prepare your t-shirts for use as a quilt.