Stallergenes Greer is a global healthcare company specializing in the diagnosis and treatment of allergies through the development and commercialization of allergy immunotherapy products and services. The company operates in Europe, North America, and Asia-Pacific. Stallergenes Greer's portfolio of products includes sublingual tablets, subcutaneous immunotherapy, and diagnostics. The company was formed in 2015 through the merger of Stallergenes and Greer Laboratories. Stallergenes Greer is headquartered in Antony, France.