Official Global Relationships Overview

A world of opportunities

Sister Cities International (SCI) is a national initiative begun by Dwight D. Eisenhower shortly after World War II, to develop economic, cultural and technical exchanges between US cities, counties, and states with corresponding communities worldwide. The goal of the Sister Cities program is to involve people and organized groups at all levels of society, establishing productive, people-to-people relationships through global community partnerships and volunteer action.
Learn More about Sister Cities More icon

Friendship City Agreements are usually the first step on the road to becoming a Sister City. Some have described Friendship City relationships are 'the engagement before the marriage'. Whereas Sister City relationships require approval from both cities' respective city councils, Friendship City Agreements can be made between Mayors.
Learn More about Friendship City Agreements More icon

Our relationship model is your San Antonio passport to global access. The department serves as the city’s official foreign affairs liaison with the diplomatic corps, government, educational and cultural organizations. We advise elected city officials, department representatives, and the business community on international protocol and provide training on cross-cultural communications and etiquette.

Accessing Global Trade and Business Services