Does anyone make anything like this in the states?

[foxequipment]

http://www.durawall.com.au/

[DVS Hardscaper]

Are we supposed to read that website in an Australian accent?
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[foxequipment]

What are you a larrikan?

I worked in a Ferrari shop with a Aussie that used to call me that.

Anyway....They build sound walls using the same principal and there are temporary trench shoring systems that use it as well.

[PaperCutter]

Closest I've seen is these guys, but I don't believe they're applicable for retaining walls. http://www.concretefence.com/

[Cloud9Landscapes]

There is a park in my area that has massive interlocking concrete blocks, which are known as gabions, as a retaining wall. The problem with Gabions is that they generally are very wide, heavy, and at times expensive. Generally in my area, concrete walls are made out of CMU's with a reinforced footing, but that is breaking into concrete placement/finishing. This is out of the spectrum for most landscape businesses.
The closest thing I can think to this would be a dry-stackable product like Belgard block, Allan block, etc.

Here is a link on gabions: http://www.internationalerosioncontr...tegabions.html

Here is more about CMU construction (probably rarely done in your area): http://www.rcpblock.com/constructiondetails-cmu.html

And finally here is Belgard's website: http://belgard.biz/photos-retaining-walls.htm