MainStreetChamber Holdings, Inc. focuses on acquiring a portfolio of small and micro businesses. It develops solutions for organization ranging from startup to established companies. The company formerly known as Walker Lane Exploration, Inc. and changed its name to MainStreetChamber Holdings, Inc. in 2022. MainStreetChamber Holdings, Inc. was incorporated in 2007 and is based in Las Vegas, Nevada. MainStreetChamber Holdings, Inc. is a subsidiary of SJE Mining LLC.