4M Building Solutions Acquires Calvary Building Services

4M Building Solutions Acquires Covenant Building Service

December 1, 2024

Environmental Services

St. Louis-based 4M Building Solutions, backed by O2 Investment Partners, has acquired Hendersonville, Tennessee-based Covenant Building Service, a commercial janitorial provider serving the Nashville area. The add-on strengthens 4M’s presence in the Nashville market and integrates Covenant’s 55-account portfolio and operations into 4M’s platform; financial terms were not disclosed.

O2-backed 4M Building Solutions Acquires Capital Services

May 30, 2023

Environmental Services

O2 Investment Partners (through its portfolio company 4M Building Solutions) has made an investment in and partnered with Capital Services, a Columbus, Ohio-based janitorial and cleaning services provider. Terms were not disclosed; the deal expands 4M's footprint in central Ohio and brings Capital Services into 4M's platform following O2's prior investment in 4M.

O2 Investment Partners Invests in 4M Building Solutions

January 18, 2023

Professional Services

O2 Investment Partners has made a significant growth investment in 4M Building Solutions, a St. Louis-based commercial cleaning, janitorial, and housekeeping services company. The capital will support 4M’s organic growth and acquisition strategy while the company continues to operate under its existing leadership; terms were not disclosed.

4M Building Solutions Acquires Horizon Services Corporation

June 11, 2024

Industrial Services

4M Building Solutions, backed by O2 Investment Partners, has acquired Horizon Services Corporation, a commercial cleaning and facilities services provider headquartered in East Hartford, Connecticut. Horizon will retain its leadership and brand while its leadership team and select executives become equity holders; the deal is 4M's fourth add-on since O2's growth investment in January 2023.

4M Building Solutions Acquires Eagle Enterprises, Ltd.

October 1, 2022

Industrial Services

St. Louis-based 4M Building Solutions has acquired Wisconsin-based Eagle Enterprises, Ltd., a commercial cleaning and janitorial services provider, effective Oct. 1, 2022. The deal brings nearly 100 new commercial cleaning customers, about 250 employees, and Eagle’s New Berlin headquarters and Madison-area office to 4M as the company expands into its fifteenth state, Wisconsin.

4M Building Solutions Acquires SG360

May 3, 2024

Environmental Services

4M Building Solutions has acquired SG360, a commercial cleaning and janitorial services provider based in Overland Park, Kansas. The deal — executed through 4M's PE-backed acquisition platform — adds roughly 1,200 team members, expands 4M's footprint into five new states and broadens its Midwest and Southeast operations.