A Multi-State Operator (MSO) is a cannabis company that holds licenses in multiple states. In Missouri, MSOs typically operate through locally-incorporated LLCs with names that don't reveal their corporate parent. For example, “Grassroots OpCo MO LLC” is actually Cresco Labs — one of the largest cannabis companies in the United States. This structure makes it difficult for consumers and regulators to track how much of Missouri's cannabis market is controlled by out-of-state corporate interests.