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Avio-Diepen BV

J. Keplerweg 16
2408 AC Alphen a/d Rijn

Proponent is the world’s largest independent aerospace distribution company. We are 100% employee owned, making our highest global priority to effectively serve you, our suppliers and customers. Our product portfolio consists of over 400,000 high quality aircraft parts, which we deliver on-time, anywhere in the world.

We’re more than just parts. We are an aerospace distributor focused on our customers. We believe that relationships are what really keep planes in the air. So, we do everything in our power to create deep, rewarding relationships with our customers and suppliers.

Our goal is simple: we want to be the world’s leading aircraft parts distribution company. We believe that this starts by listening to our customers, learning their unique objectives and working together to deliver customized solutions and services to ensure their success.

Proponent grew out of a partnership between Kapco Global and Avio-Diepen. With 115 years of combined aerospace expertise and a shared perspective on what an aerospace distributor can be, we work hard everyday to add value to our suppliers’ and our customers’ supply chains.