I had these tow brackets for my 2006 TJ Unlimited. The should work with all TJs.
The bolt right to the frame over the stock bumper using the bumper mount hardware.
I used these to tow my Jeep behind my motorhome using a Blue Ox tow bar.
These mounts have some surface rust but are fully intact.
I haven't had my TJ for a few years now but these have been stored inside my shop and out of the elements.
Unfortunately I have been unable to track down the info on the original manufacturer so I can't give you a brand name.
I paid $130 for them new. I am asking $80. I will ship (US only) for $15... of course local pickup is free :-)