Ford. Please don't rely on on the internet for your legal advice. If you are really starting a proper business please consult an attorney who specialized in the area of your planned business. Unfortunately this is usually not cheap. Also you seem to be embarking on a financial services type of business. Again this area of business is highly regulated, both in the jurisdiction in which you operate (UK) and in the jurisdiction in which you hope to serve customers/clients (US/UK).
The US and the UK have high levels of cooperation in most areas of law and regulation so it is not likely that you would be beyond the reach of the US Government if your activity is unlicensed or unregulated and if the level and volume of your activity warranted action on behalf of any enforcement agency.
There is a reason other similar businesses are pulling out of the US. The risks of operating outside of regulation and/or the cost of becoming compliant with all the required laws and regulations far out weight the benefits for a small start up company. This risks include both civil (monetary fines) and criminal (loss of personal freedom) penalties.
You should maybe do a little research about the past bitcoin businesses that may have been great ideas but went wrong badly for either the operators, the users or both.
Extreme cases include the recent Silk Road seizure, and the civil complaint against Trendon Shavers also known as pirateat40 and his Bitcoin Savings and Trust. Nefario's Bitcoin Stock Exchange was another Disaster. Then there is Mybitcoin, Bitcoinica, Bitfoor and the list goes on. All of the cases are well documented and discussed within this forum, reddit and else where around the internet.
There are plenty of successful bitcoin companies and some very interesting (and well funded) startup on the horizon. Unfortunately , for the most part, gone are the days when any coder with a hosted service could spin up a multimillion dollar bitcoin business.
Good luck.
Hello
Thanks for the advice.
I will, prior to launch, seek "proper" UK legal advice, although i don't think (nor intend) to be an illegal business!
(just for the record, I AM NOT PLANNING ANYTHING LIKE THE SILK ROAD! i am an honest business man!)
Most of what i intend will be perfectly legal in all countries with no need for any regulations/registrations, my only concern is that if i offer Shares in my business/website, will there be any regulations i need to abide by (firstly in the UK, and secondly in other countries. And hopefully these regulations will not be vastly different in the US). where required i will abide by these regulations.
Best Regards
Ford