Tannermatic is just our ball busting name for products made by our own Matt Tanner (aka Monkey on this forum).
He's a fellow racer and excellent glass/CF guy...it's his profession. He ain't cheap...but he'll do one off custom stuff of great quality. I can't speak about his street parts cause I've never ordered any...but his race parts are the lightest and strongest stuff I've used.
Off hand I'd say his prices are on par with AirTech..but quality is much better. And unlike AirTech...if you have the time and money he'll sometimes replicate your parts in glass. Which I assume is a tremendous pain in the ass since you have to make molds etc.