This section will help you navigate and understand the City's procurement processes, including how to pursue City contracts. Vendor Handbook: Doing Business with the City.Learn more about the procurement process, and how to do business with the City. The first step to creating a one is for the industry to hold a meeting where they formally identify mutual marketing problems. View a summary page of this 2018 CONTRACT to SAN ANTONIO MARKETING ENTERPRISES, INC. From the Department of Defense. While this Agreement is intended to set out the general terms which will apply to all agreements between the Parties, the specific terms and conditions for the.