Dan's point about waiting for new business licenses is true, however there are other public records you may be able to catch earlier in the process. Also, not every business is super-organized about their startup process, and considering how low the cost is to market to them via mail, it may be well worth the effort.For example, the State of Texas (where I live) makes
lists of new franchise tax and sales tax permits available online (so do many other states -- you'll have to check yours). Load those into a spreadsheet, filter the list by ZIP and
NAICS code to your target market, and send them a mailing. Try a small sample and see if it works well enough to justify the advertising expense.I've used this approach very effectively to market computer consulting services. It should work for credit card processing as well.