PA Business One-Stop Shop joins SBA to help you take the guesswork out of business filings, applications, and registrations. Are you ready to jumpstart your entrepreneurial dream? Most entrepreneurs start with a home-based business that creates, delivers, or improves on a product or service. The Pennsylvania Department of Community and Economic Development’s PA Business One-Stop Shop will take the guesswork out of business filings, applications, and registrations, so you can focus on running a successful business.