I have read a lot of misinformation here and elsewhere about string manufacturers. Things like "there are only two or three actual string makers," or "Company X makes strings for Company Y" etc. So I did a little research. Here is some of what I found out: D'Aquisto makes strings. Dean Markley makes strings. They own a company called American Winding that makes all of their strings. GHS does not make Dean Markley Strings. Fender makes strings. They purchased the Squier manufacturing company, a string manufacturer, sometime around the late '60's or early '70's, I'm not sure of the date. Fodera makes their own strings. La Bella, of course, makes strings, including Carvin roundwound and tapewound strings. I'm not sure who makes Carvin's flatwounds. Both GHS and Labella deny responsibility . SIT makes strings. Ernie Ball makes strings. Ken Smith makes strings. These are actual string manufacturers that own their own string winding equipment. This is in addition to D'Addario, GHS, Rotosound, Thomastik-Infeld and any others you may have heard of. I couldn't find a working phone number for Charlie Stringer's strings, so I don't know about them. This is about all I have at the moment, but I thought you might find it interesting.