Best of luck on your endeavor. I'm a partner in a large national accounting firm (25yrs) and have dealt with many a start-up or expansion company. I would venture to guess that you're right that most of the carbon bits are coming from across the pond. I would think the production runs are not very large and the manufacturers would be small. Hard to say how much would be done in China. As I'm sure you know, Bike Johnny in the UK sells alot of carbon and fibre products. The two companies they appear to deal with are (1) "Creations Engine Armour" now called "Tay Pro Tec" and (2) Hansell Composites Ltd. selling under the name "Fibre-Lite". The latter looks like a small production shop in the UK. Kent I think. It's a long shot but who knows. You may even have a shot at being the US expansion to Bike Johnny. Shipping to the US has to limit their custome base.
Another option, depending on your seriousness, is to contact a manufacturing consultant in the St. Paul-Minneappolis area, write them a BIG check, and they could find just about every manufacturing company in the world that has ever glued two pieces of carbon together.
A cheaper option would be to find a friend, acquaintance, whoever, that works for an engineering firm, architectural frim, or patent attorney. These guys usually have the same access to the industry search guides that you must subscribe to for a hefty fee.
Not sure if this is any help but I hope you can pull it off.
Still waiting for my 06 sm510 to show up. Who ever said that old accountants can't have a little supermoto fun!