Many A-2 makers claim to be official A-2 suppliers. The companies you mention above are the only producers who have had military contracts since the A-2 was reintroduced in 1988. U S Wings has not. Their jackets are strictly civilian.
AF
Wait, doesn't U.S. Wings own Cooper? Isn't that how they came to be, buy taking over Cooper? Is it possible that US Wings still has the Cooper label as an official military supplier while its own US Wings brand is sold to the general public?