There are 5 Adam Aircraft Industries A500 aircraft on the U.S. registry that TailWiki has a page for. Every one is built from the public FAA record — year, serial, engine, home base, and registration history — and owners and pilots add photos, trips, and stories on top. The ones listed here were built between 2005 and 2007.
N511AX
2007 Adam Aircraft Industries INC A500
Colorado Springs, CO
N509AX
2006 Adam Aircraft Industries INC A500
Forney, TX
N510AX
2006 Adam Aircraft Industries INC A500
Seneca, PA
N558MC
2005 Adam Aircraft Industries INC A500
Seneca, PA
N607SF
Adam Aircraft Industries INC A500
Wilmington, DE