About Our Company

S3 AeroDefense provides Aircraft SPARES distribution, Repair and Overhaul SERVICES and Program Management SOLUTIONS
to Military Operators around the World making S3 AeroDefense your Partner for all your Aircraft sustainment requirements.


Founded in 2005 by Jeff Wnuk, Aksel Sidem and Sebastien Imbert, S3 AeroDefense began as S3 International with the intent to provide innovative, cost effective Spares, Repairs Services, and Solutions: to become a One Stop Shop for the Commercial and Military aircraft operators around the world.

Our Mission & Vision

Our Mission: S3 AeroDefense is dedicated to customer service excellence by providing the military aerospace market with only the highest quality parts and supply management services. We are committed to exceeding our customer’s expectations by providing superior service and innovative logistics solutions for the best value.

Our Vision: Creating solutions for aerospace customers through superior customer support, uncompromising quality and technical innovation

Our Core Values

Our Global Presence

Quality and Compliance

S3 is dedicated to providing the highest quality products and services to meet or exceed customers’ requirements. We are industry leaders as demonstrated by our rigorous quality standards and certifications found below. We strive for quality excellence through continual process improvement and total team commitment. Our resources and expertise create a great opportunity to provide compliance solutions and additional support to our customers.