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Altus Capital Partners Completes Second Acquisition for Winsert with Mack Tool & Engineering, Inc.

Acquisition will support Winsert’s long-term growth initiatives and add to the company’s high-quality product offerings.

Marinette, WI, August 8, 2025 – Winsert, a manufacturer of specialty alloys providing critical components to Fortune 500 OEMs and Tier 1 suppliers, is proud to announce the acquisition of Mack Tool & Engineering (Mack), an expert in precision machining headquartered in South Bend, Indiana. This combination brings together strengths in engineering, manufacturing, alloy development, on-time delivery, and quality standards that will benefit both companies’ customers and employees.

Winsert is an award-winning Wisconsin-based manufacturer that is fully integrated with multiple foundry types, advanced machining, and inspection technologies, making it a global provider of precision specialty alloy solutions. The acquisition of Mack will allow for additional products and services to be offered to the two companies’ current and prospective customers. 

Mack’s aerospace and medical end market focus will enhance Winsert’s diversification,” said Greg L. Greenberg, Senior Partner of Altus Capital Partners, “Altus is excited and looks forward to our continued partnership alongside the Winsert executive leadership team, to grow Winsert through strategic initiatives, that further strengthen Winsert’s in-house capabilities and end markets served while delivering high quality products and services to its customers.”

Mark Coduti, Winsert’s President, said, “This acquisition is a significant step forward in our strategy to expand capabilities and strengthen our presence in the aerospace market. Mack’s expertise in their field is a game changer for us. Not only does Winsert grow in aerospace and medical, but Winsert’s existing customers will have the benefit of more complex components with the knowledge that they will be delivered on time and to the highest quality.”

About Winsert

Winsert designs, develops, and manufactures high-performance alloy components for a diverse range of industries including heavy-duty on- & off- highway, power generation, agricultural, Industrial, and aerospace. With a strong focus on innovation, quality, and continuous improvement, Winsert delivers cost effective solutions that meet the highest performance demands. For more information, please visit www.winsert.com.

About Mack Tool & Engineering, Inc.

Mack is a respected provider of high-precision machined components, primarily in the aerospace and medical markets. With advanced machining equipment, established expertise and skilled workforce, Mack has earned certifications in NADCAP, ITAR, and AS-9100 D. For more information, please visit www.macktool.com.

About Altus Capital Partners

Altus Capital Partners is a private equity firm that makes control investments in middle-market niche-manufacturing businesses. Our exclusive focus on manufacturing provides us with a unique understanding of the opportunities and challenges faced by companies in the sector. We utilize a patient, thoughtful investment approach and seek to partner with the management teams of our operating companies to achieve growth. For more information, please visit www.altuscapitalpartners.com.