Below is a collection of helpful documents, including budgeting tools, guides on writing a business plan, and more. Contact the local Bexar County Agricultural Extension at (210) 631-0400 for date and time.Where can I find more information regarding governmental programs? Discover how to launch your business in San Antonio with out all-inclusive guide. Find out how to navigate registration, taxes, licenses, and more. Complete list of Texas Comptroller Property Tax Forms and Applications click here. Texas Comptroller Property Tax Publications click here. San Antonio business registration is completed through a series of steps including choosing a business name and acquiring a business permit or license. There is no provision in the Business Organizations Code to govern sole proprietorships. Filing an Assumed Name Certificate does not prevent another party from using the same name.