These are some companies I deal with regularly, and have had wonderful results from.
Lush Eco Lawns - as well as caring for your lawn in a chemical free and sustainable way, John has the BEST doggy doo composters. I have two, and there is no odour, and it blends right into the landscape.
www.lushecolawns.com
http://www.lushecolawns.com/Dogs-best-composter.html
www.lushecolawns.com
http://www.lushecolawns.com/Dogs-best-composter.html