Aviation NewsWho's Where?ARG/US Buys Avmosys, Hires PrinciplesBy Editorial Staff - Published: November 4, 2008 Updated: June 14, 20190PrintEmailFacebookTwitterLinkedin Aviation Research Group/U.S. Inc. (ARG/US) has acquired Avmosys, LLC and hired founders Scott Liston and Mike Midkiff to continue developing the business under ARG/US. Avmosys is developing aviation management systems.