Gentlemen:
It is our pleasure to inform you that the __________________ (name of new business) is now open for business.
Our firm is located at ___________________ (location) and we specialize in ___________________________.
We have enclosed a credit application in your name should you be interested in opening an account with us. We will look forward to your coming in for a visit or calling us if you would like to have one of our representatives come to your office.