Aeronautix, LLC is a professional engineering and Federal Aviation Administration (FAA) Designated Engineering Representative (DER) consulting firm that specializes in aircraft Type Certification (TC), Supplemental Type Certification (STC) and Parts Manufacturer Approval (PMA). With our extensive and experienced team of engineers and FAA DERs, Aeronautix can support aircraft certified in the Normal, Utility, Acrobatic and Commuter (Part 23) as well as Transport (Part 25) Categories.