I think the BHP should count: While is based on a Browning design, the final product was the work of Dieudonné Saive. Among other things Saive developed the staggered magazine used to increase the High-Power's capacity. In addition, it was developed for FN in response to a French requirement for a new service sidearm.
So, Belgium is a definite.
Switzerland: SIG
Germany: Walther, Mauser, H&K, just to mention a few.
Italy: Beretta - they've been making guns since 1526; they seem to have figured it out fairly well.
Austria: I many not be a Glock fan, but the concept is brilliant. Steyr for exquisite rifles.
Great Britain: For an anti-gun country, they sure produce some beautiful shotguns and rifles.