Innovative Engineering – Mainstream began as a research and development company dedicated to solving NASA and DOD problems. Today, we perform R&D projects for virtually all agencies of the U.S. government. Therefore, our products, which are sold in government, military, and commercial markets, are technologically superior and developed to withstand harsh military and space environments. Our products are protected by patents and patents pending. All Mainstream products are made in the U.S.A.!