Architect Ralph Appelbaum founded his eponymous firm – Ralph Appelbaum Associates (RAA) – in 1978.

It has grown to become the largest dedicated museum exhibition design firm in the world, employing a staff of over 90 across its New York City, London, Beijing, Berlin, Moscow and Dubai offices.

Its international team works on projects of all scales within its specialism – as a result, it estimates that 75,000,000 visitors visit its spaces each year.

Pictured above is the practice's Lost Shtetl Museum in Lithuania, which is dedicated to Jewish history.

Ralph Appelbaum Associates is featured in the Dezeen Jobs Top Companies 2026 list, highlighting studios that set new standards in workplace culture, inclusivity, wellbeing and professional growth. Find out more about the initiative here.