This is a form of networking. The goal is to establish credibility for new business by trading on prior experience and business contacts. Keep the letter short and enclose a brochure if available.
1234, Main Street
Boston, MA 02123
08 April, 2005
<Recipient Address Goes Here>
I recently left my position as <former title> at <name of former company> to start my own business. I'd like to take just a moment of your time to tell you about <name of new company>.
Please call me at <telephone number> if you <description of services>. I look forward to doing business with you in the future.
encl: <List of enclosed items goes here>