Carlson, which is probably the largest and best known commercial art fabricator, is going bankrupt.
They fired all 95 employees a couple weeks ago.
The made things like Jeff Koons' Balloon Dogs.
They developed the finishes and techniques to do it, and, expensive as they were, I doubt anybody else could build similar stuff for less.
There are still a few other large scale art fabricators- I know of one in NYC, one in Chicago, and one in Seattle, who do similar scale stuff, but Carlson was particularly good- Carlson himself was VERY good at figuring out how to do the impossible, based on a napkin sketch.