St. Charles Business Alliance Inc, formerly known as Downtown St. Charles Partnership, is a nonprofit organization focused on urban development, community and economic development, and community improvement in St. Charles, Illinois. With an operating budget of $1.1 million for the 2025 filing year, the organization is dedicated to enhancing the economic viability of St. Charles, driving tourism, promoting the area, organizing large-scale events, and revitalizing downtown St. Charles. The organization does not rely on a single funder for 50% or more of its revenue. For more information, visit www.stcalliance.org.