API Outdoors makes them - the Grandstand Telescoping Packmaster which is like a ladder stick and the Grandstand G-2 packable Ladder Stand which has a folding ladder (just under $300) .
In my opinion I wouldn't use either one ....
Why you ask ?
To me they look designed for just one day hunts "pack in pack out" - For the Grandstand Telescoping Packmaster looks like it is about 2ft. over your head ( hit a few overhead tree limbs and see how many deer stick around) or trying to bend over to get underneath some obstruction seems a lil tricky with this model.
The Grandstand G-2 packable Ladder Stand not sure I trust the "pin" type connection seems like there would be a little play there which would create some unnecessary noise ...
Just my 2 cents