Eyerish,
Is this the best way to get your business finances out of you personal name?
It will only be out of your personal name if you formed your company as such.
If you are a sole proprietorship...with a simple tax id number...All of the credit references, debt, and liability...will be 100% in your name...regardless of the dun and bradstreet credit scores. You can register a sole proprietorship and get a duns number, but you still have all of the personal liability for your company dealings.
The only way to make sure you are not personally liable for the business dealings of your company..most notably...your credit score...is to form your company as an LLC or a corporation which will protect your personal assets in case of a bankruptcy, lawsuit, bad payment history, etc.
With that said, many creditors will still require a personal guarantee regardless of your company structure unless you have impeccable credit history and a long amount of business aging.
You can start building business credit immediately through companies like uline, viking, and some of the office supply stores....and if your personal credit history is good...you can get tons of credit if you do a personal guarantee on the credit lines.
I think 3 years in business and a high paydex score (80+) is usually the magic number for many of the good credit lines to come to fruition.