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INVESTING
IN NATIONAL
SECURITY

At Ajax Defense, we invest in U.S. defense and aerospace small businesses to strengthen critical supply chains. Our mission is rebuilding the defense industrial base for a more resilient future.

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About us

investing in
National Security

Ajax Defense is a long-term investment holding company dedicated to revitalizing the U.S. defense and aerospace sectors. We focus on acquiring and investing in small businesses that form the foundation of America’s critical supply chains, ensuring their resilience, modernization, and long-term competitiveness.

Our strategy emphasizes operational excellence, financial strength, and strategic business development to deliver sustainable growth. By championing innovation and supporting small businesses, we reinforce national security while continuing the enduring legacies of our subsidiary companies.

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Built on Trust.
Committed to Growth

At Ajax Defense, our strength lies in decades of operating experience in the aerospace and defense industry. Guided by proven leadership with a track record of operational excellence and business growth, we bring unmatched expertise and focus to every partnership.

With integrity at our core and collaboration as our approach, we work hand-in-hand with stakeholders to drive continuity, success, and lasting impact across every venture.

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Patrick Malcor

Founder & CEO


Wayne Marhelski

Chief Operating Officer


Fernanda Zager

Corporate Support & Operations Manager


Insights from Our
Founder, Patrick Malcor

Patrick Malcor shares the mission, vision, and impact of Ajax Defense. In this video, he provides an inside look at how we are strengthening America’s defense supply chains and fostering a legacy of resilience, innovation, and trust.

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Sectors We Serve

SUBSIDIARIES

Whelan Machine

Partnering with Whelan Machine & Tool is more than an investment—it’s a commitment to securing America’s defense supply chain. With over 35 years of experience, this veteran-owned business has built a reputation for “supporting the mission with world-class precision.” Together, we’re advancing the future of American manufacturing and strengthening national security.

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How We Invest

We invest in established industrial companies that can benefit from our track record and focus on financial strength, operational excellence, and strategic business development. Our strategy is to enhance or develop the defense related customer segment while maintaining a healthy diversification in other sectors. We make control-oriented investments in companies with management teams we can partner with to drive growth through organic and acquisition-based initiatives that build long-term value.

We are a veteran-owned, private holding company with a long term view of investing to maximize value and impact to the mission. We are small business entrepreneurs at heart and favor simple, straight-forward investments with people we can work with for the long haul. Our subsidiaries continue to operate independently and maintain & develop their close customer relationships and long-standing workforce, while working with us closely to scale to the next level and become part of a larger team and Ajax Defense.

Our Approach

Operations-First


Our customers in highly regulated industries depend on our relentless commitment to operational excellence and the highest standards of quality & delivery.

Financially Strong


We invest our own capital and re-invest cash flows back into our companies to support management’s views on growth & value creation.

Focused Business Development


Our deep experience & network in the defense supply chain informs our strategy and connects our subsidiaries to transformational opportunities.

Mission-Oriented


We’re committed to the mission of delivering advanced manufacturing solutions to our customers and supporting national security & resilience.

Long-Term


Our time horizon is forever, allowing us to make investments that maximize long-term value throughout multiple business cycles.

Flexible


There is no single recipe for a great investment. We’re entrepreneurs who build partnerships with people we respect and want to work with.
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FILL OUT THE FORM

Thank you for your interest in Ajax Defense. Please fill out the form below, and we’ll get back to you promptly to discuss how we can collaborate to strengthen our nation’s defense supply chain.

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We can work together to strengthen
America’s defense supply chain.