A leader in allergen immunotherapy (AIT), Stallergenes Greer has been present in Canada since 2014. We provide allergen immunotherapy and diagnostic solutions. Our Dutton, Ontario facility prepares named- patient immunotherapy for Canadian patients. Our wide range of products makes Stallergenes Greer a leader in the Canadian AIT market. Learn more about our solutions Every day, our employees commit to fulfilling our purpose: enabling precision medicine to improve life for people with allergies.