Business Directory Program

This is a Business Directory Program. This program must list all types of business by Category's, Name, Phone Number, and Zip Codes. You can search them by the above. I have thousands of listings that needs to be added and would like to be included in the final software development. I have them on excel sheet, you can also add any listings in the united states. I would like also to add future listings myself, So I would need you to create something that I would be able to add listings to the program! I want my company logo on the software. Design must be very nice! No Amateur!!