Allergon Division is situated in Missouri, USA, and is ideally located for the pollen collection of the common US species.  Allergon Division collects pollen raw materials over more than a 1000-mile radius, covering the majority of the United States.

Allergon Division also functions as a research unit for the study of pollen species worldwide, their blooming times, and locations. We also work with our customers to source new or hard to find species. A database, with over 700 species, is maintained at the site. In addition, over 20 years of business has resulted in large amounts of yield information and blooming times for species in the United States.