HAL Allergy Group
HAL Allergy Group (HAL Allergy) is a modern leader and innovator in the field of biopharmaceuticals and located at the Bio Science Park in Leiden, The Netherlands. Our focus since 1959 stems from the development, production and distribution of Allergen Immunotherapies for the treatment and prevention of allergic diseases. These immunotherapies are used primarily against common allergies such as hay fever, house dust mite allergy and allergic reactions towards wasp or bee stings.