The Grassmayr Bell Foundry is a maker of church bells founded more than 400 years ago in Innsbruck, Austria. The business was founded by Bartlmä Grassmayr in Habichen, a hamlet in the municipality of Oetz. At present, the company is Austria's oldest family-run business and one of the largest bell manufacturers in the world, having supplied bells for eight religions in more than 100 countries on every continent.