Knox Lane Acquires Majority Stake in Guardian Fire Protection Services

Guardian Fire Protection Services Acquires Harris Fire Protection

June 20, 2024

Industrial Services

Guardian Fire Protection Services, backed by investor Knox Lane, has acquired Harris Fire Protection, a Baltimore-based specialist in special hazard and marine fire suppression systems. The acquisition expands Guardian's presence across the Mid-Atlantic and bolsters its capabilities in marine and special-hazard fire protection; terms were not disclosed.

Investcorp Acquires Guardian Fire Services

December 3, 2025

Industrial Services

Investcorp has acquired Guardian Fire Services, a Nashville-based provider of fire protection and life safety services, from Northern Lakes Capital. Guardian operates 17 branches across the U.S., serving commercial, industrial, healthcare and educational customers; management will remain meaningful shareholders as Investcorp supports the company's continued growth.

Knox Lane Acquires Majority Stake in HighGround Restoration Group

January 1, 2025

Professional Services

Knox Lane, a San Francisco-based growth-oriented investment firm, has acquired a majority stake in HighGround Restoration Group, a national residential mitigation and restoration platform. The partnership will fund HighGround's next phase of growth — investing in business development, digital marketing, talent, operational efficiencies and continued strategic acquisitions.

Knox Lane Acquires Majority Stake in Ruppert Landscape

December 1, 2022

Environmental Services

Knox Lane, a San Francisco-based growth-oriented investment firm, has acquired a majority stake in Ruppert Landscape, Inc., a leading provider of commercial landscape services headquartered in Laytonsville, Maryland. The partnership will support Ruppert's plans to expand its footprint organically and through strategic add-on acquisitions while founder Craig Ruppert and management retain a significant investment and continue to lead the business.

CenterOak Partners Completes Majority Recapitalization of Guardian Access Solutions

September 13, 2023

Industrial Services

Dallas-based private equity firm CenterOak Partners completed a majority recapitalization of Guardian Access Solutions, a Nashville-headquartered provider of design, installation, maintenance, and repair services for exterior access control systems across the Southeastern U.S. The transaction transfers majority ownership from Brixey & Meyer Capital to CenterOak, with Guardian's management team remaining in place and plans to pursue accelerated organic growth and add-on acquisitions to expand the company's service footprint.

Knox Lane Acquires Majority Stake in All Star Healthcare Solutions

May 2, 2024

Healthcare Services

Knox Lane, a growth-oriented investment firm, acquired a majority stake in All Star Healthcare Solutions, a Florida-based locum tenens and healthcare staffing provider. The All Star founders and management will retain a significant minority and reinvest; the partnership will support organic growth, technology investment and strategic acquisitions to scale the business.