About Proponent Defense
Mission-Focused. Readiness-Driven.
Proponent Defense delivers sustainment solutions focused on operational readiness, supply chain performance, engineering-driven solutions, and long-term partnerships with the U.S. military, allied foreign militaries, government agencies, prime contractors, and depot maintenance organizations worldwide.
We exist to keep mission-critical platforms ready—not just to distribute parts. From strategic sourcing and inventory investment to engineering support and sustainment planning, every aspect of our business is designed to improve operational readiness and deliver reliable support to the defense organizations we serve around the globe.
Our History
Founded in 1971, Proponent Defense has spent more than 50 years helping government and defense customers solve complex sustainment challenges. Through decades of industry experience, trusted customer relationships, and recognized operational excellence, we have grown into Proponent’s Military Center of Excellence and dedicated defense business unit. Backed by the resources and global reach of the world’s largest independent aerospace distribution company, we deliver the expertise, responsiveness, and reliability our customers depend on.
Backed by the World’s Largest Independent Aerospace Distributor
Proponent Defense is the dedicated military and defense business unit of Proponent, the world’s largest independent aerospace distribution company, giving us the scale, inventory investment capacity, and global reach to support critical defense programs. Our presence extends across major aerospace and defense trade shows and exhibitions throughout North America, Europe, the Middle East, Asia, and Latin America.
An Employee-Owned Culture, Invested in Your Mission
Our employee-owned culture means everyone on the Proponent Defense team has a direct stake in the outcomes we deliver for our customers, not just a job to do.
Working Towards a Shared Goal
Behind every kit, every shipment, and every sourced part is a team of dedicated specialists, from our government contracts and business development team to certified WAWF preparation and packaging specialists, to the supply chain kaizen team that keeps our partners’ operations running lean.
Andrew Pramschufer
Chief Executive Officer
Andrew been running businesses in the aerospace industry for over 20 years…
Monica Peters
Vice President of Finance and Administration
Monica has been providing accounting services for 24 years. Her knowledge and experience…
Juan C. Chanax
Vice President of Operations
Juan focuses on handling inventories, budgeting, implementing new technologies…
Amanda Meeks-Turner
vice president of sales and business development
Amanda is an accomplished Sales and Business Development Manager with over 15 years…
Guido Fonseca
Director of SUpplier Performance
Guido has been in the industry for 30 years. He utilizes his experience and extensive knowledge…
Melissa Danieley
Director of quality management systems and defense compliance
Melissa Danieley utilizes her extensive knowledge and experience, with auditing…
