Specialty Drilling Holding Company (Kalbot) Acquires Authentic Drilling

Private Investor Acquires Holocene Drilling, Inc.

May 23, 2022

Environmental Services

Generational Equity advised Holocene Drilling, Inc., a Puyallup, Washington-based geotechnical and environmental drilling services provider, on its sale to a private investor. The transaction closed on April 30, 2022; Holocene offers geotechnical, environmental and dewatering drilling along with related site services and serves engineering, infrastructure and environmental sector clients.

OCI Acquires DRILLTOOLS

September 27, 2024

Manufacturing

OCI, LLC, a Brookville, Pennsylvania-based manufacturer and portfolio company of Grand Valley Holdings and Gemspring Capital, has acquired DRILLTOOLS, a Kilgore, Texas-based manufacturer of rotary drilling tools and excavation products. The acquisition expands OCI's product suite, manufacturing capabilities, and technical expertise to better serve infrastructure, utility, and commercial contractors; DRILLTOOLS will continue to operate from its Texas headquarters.

Subterra Renewables Acquires Earth Drilling Co. and Harris Exploration to Expand Geothermal Drilling Coast-to-Coast

October 27, 2023

Renewable Energy

Subterra Renewables' affiliated companies have acquired Alberta-based Earth Drilling Co. Ltd. and Nevada-based Harris Exploration to expand coast-to-coast geothermal drilling capacity across Canada and the U.S. The deals add experienced drilling teams and rigs, support the launch of a Calgary office led by Matthew Tokarik, and strengthen Subterra's vertically integrated geothermal services and utility offerings.

Star Equity Holdings Acquires Alliance Drilling Tools, LLC

March 3, 2025

Industrial Services

Star Equity Holdings, a diversified holding company based in Old Greenwich, Connecticut, has acquired Alliance Drilling Tools, LLC (ADT), a Wyoming- and Texas-based drilling equipment supply and repair business. The transaction transfers ownership of ADT — which operates facilities in Midland, Texas; Casper and Evanston, Wyoming; and Vernal, Utah — to Star as the company moves into its next phase of growth.

Kellstrom Holding Corporation Acquires Airborne Technologies, Inc.

November 22, 2019

Aerospace & Defense

Kellstrom Holding Corporation (KHC) has acquired Airborne Technologies, Inc. (ATI), a Camarillo, California-based manufacturer of complex defense aircraft parts. ATI will be combined with Kellstrom Defense's Engineered Products segment to expand OEM-sanctioned parts manufacturing and aftermarket sustainment capabilities for military aircraft.

ConeTec Group Acquires Geotech Drilling Services

January 16, 2024

Industrial Services

ConeTec Group, a Canada-based site characterization services leader, has acquired Geotech Drilling Services Ltd., a British Columbia–headquartered geotechnical, environmental and exploration drilling contractor. The acquisition combines the companies' drilling and testing capabilities to expand ConeTec's service offering and geographic reach across Canada and internationally.