Rainier has completed the acquisition of Kleen-Tech, a leading janitorial services provider in the United States. No financial details were disclosed.

Deal-at-a-glance
Acquirer:Rainier (US)
Target:Kleen-Tech (US)
Value:Undisclosed
Type:Acquisition
Closing Date:2025-12-10
Announcement Date:2025-09-12
Buy-side Advisors:Piper Sandler, MiddleM Creative, Houlihan Lokey, 4GC
Sell-side Advisors:G2 Capital Advisors
Legal Buy-Side:Orrick Herrington & Sutcliffe, Baker McKenzie
Legal Sell-Side:Ropes & Gray

Deal Mechanics

Rainier, a private equity firm focused on facilities services and other B2B sectors, has acquired Kleen-Tech, a well-regarded provider of janitorial and cleaning services. The transaction closed on December 10, 2025, after being announced in September.

Strategic Rationale

The deal is part of Rainier's strategy to strengthen its position within the consumer goods sector by adding a leading brand like Kleen-Tech. With this acquisition, Rainier aims to drive organic growth through investments in technology and operational efficiency while maintaining high service standards.

Financial Context

Rainier did not disclose financial details of the deal, including purchase price or terms of financing. The company is known for its focus on long-term value creation through both acquisitions and internal growth initiatives.

Advisors

The acquisition was advised by Piper Sandler, MiddleM Creative, Houlihan Lokey, and 4GC for Rainier. G2 Capital Advisors represented Kleen-Tech in the sale process. Legal advice to Rainier was provided by Orrick Herrington & Sutcliffe and Baker McKenzie.

Outlook

Rainier expects the acquisition of Kleen-Tech to enhance its offerings and expand its customer base, positioning it for continued growth in the coming years. The company plans to leverage its expertise in facilities services to support further development of the acquired business.