Alfa-Ruby is a protein innovation company headquartered in St. Louis, MO that unlocks the full potential of alfalfa to produce high-performance plant protein. The company addresses the need for plant protein that does not compromise on taste, nutrition, or functionality compared to animal proteins. Founded in 2025, it is a privately held startup.

Bold Stone Creamery is a St. Louis-based startup developing a line of adult-focused ice cream flavors targeted at sales in St. Louis stadium venues. The company was selected as part of Arch Grants' 2024 annual cohort, receiving between $75,000 and $100,000 in seed funding from the St. Louis nonprofit. As a condition of the grant, Bold Stone Creamery relocated to St. Louis to grow its business in the region.

Dad's Cookie Co. is a St. Louis, Missouri bakery that has been baking its original Scotch Oatmeal cookies since 1927. Cookies are baked daily and shipped free across the U.S. In 2024, a trio of brothers acquired the company, continuing its long-running south St. Louis tradition.