Rainier Partners has acquired Kleen-Tech Services for an undisclosed amount, marking a significant corporate transaction in the facility maintenance sector. This move sees Rainier Partners gaining full ownership of Kleen-Tech, a long-standing provider of custodial and facility maintenance services.
Established in 1993, Kleen-Tech Services specializes in delivering comprehensive cleaning solutions across more than 89 million square feet of commercial and government facilities throughout the United States. The Denver-founded company is recognized for its experienced team, use of eco-friendly products, and advanced equipment. It prides itself on building long-term customer partnerships through reliable, tailored services designed to save time, reduce costs, and minimize environmental impact while upholding high standards of cleanliness. Kleen-Tech’s service portfolio includes commercial, government (such as public libraries and courthouses), and specialty facilities like research labs and airports.
The acquisition is strategically poised to leverage Kleen-Tech's robust infrastructure, proven operational excellence, and established market presence. Kleen-Tech’s focus on consistent attention to detail, proprietary work order system, and ability to foster decades-long customer relationships present a compelling opportunity for the acquiring entity. This move allows Rainier Partners to expand its footprint within the essential facility services industry, capitalizing on Kleen-Tech's reputation for performance and reliability.
Through this acquisition, the combined entity aims to further enhance service delivery and operational efficiencies. The integration is expected to build upon Kleen-Tech’s foundation of customer satisfaction and its capacity for responsive, flexible master cleaning services. The focus will remain on delivering peace of mind to clients across its diverse portfolio of facilities nationwide, continuing to drive excellence in facility maintenance.

