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O2 Investment Partners is pleased to announce that 4M Building Solutions, a full-service commercial cleaning and janitorial services platform, has completed the acquisition of Kentucky-based Bluegrass Commercial Cleaning and Illinois-based Rainbow Maintenance Services.

Husband and wife team Jared and Christy Baker purchased Bluegrass in 2015, and since then, the Bakers have grown the business into a trusted commercial cleaning leader across Kentucky. The company specializes in janitorial services, strip/wax floors, and deep/disinfecting cleaning for clients in a variety of end markets— including distribution, medical, banking, corporate owner-occupied, government, and education.

Rainbow has been servicing the greater Chicago area since 1985. The company is a customer-driven organization operating on a simple belief that quality workmanship and open communication are the keys to customer satisfaction. Rainbow brings long-tenured customers within an attractive and diverse set of end markets, such as distribution, corporate owner-occupied, medical, and education.

"Both companies share a commitment to quality, customer service, and community values, which aligns well with 4M's mission," says Leonard Carder, 4M CEO. "We are honored to welcome their clients and team members into the 4M family as we continue our growth across the country. By bringing the full breadth of 4M's resources to Bluegrass and Rainbow, we are excited to bring their customers greater operational support and service capacity. We look forward to building upon the strong foundation of both teams."

Bluegrass and Rainbow mark 4M's 15th and 16th acquisitions since partnering with O2 Investment Partners in January 2023.