Milwaukee Hydraulics is the only company left in the U.S. still making floor jacks. I have a Milwaukee Model 20 service jack I bought used in the late 1980's and have used hundreds of times. It's never failed me.
http://www.milwaukeejack.com/
Edit: I posted incorrect information. GJ member Hiball informed me Gray and Weaver are also Made in the U.S. I can't seem to get into Gray's website, but Weaver's website proudly states, "Made in the U.S.A.".
In my defense the Milwaukee people told me they were the last remaining U.S. jack manufacturer when I was trying to get a free decal from them for my jack. Also Voris Hydraulics, who I took my Milwaukee to for a freshen-up after 25 years of use told me the same thing, but apparently it's not so.
