Heartland Assays

Heartland Assays is a specialized contract research organization (CRO) and analytical laboratory based in Ames, Iowa, that provides high-quality testing services for the life sciences and healthcare industries. Founded by experts in vitamin metabolism, the company is globally recognized for its expertise in Vitamin D analysis, including 25-hydroxyvitamin D and 1,25-dihydroxyvitamin D assays. They serve academic researchers, pharmaceutical companies, and clinical trial sponsors by offering precise nutritional and hormonal biomarker quantification. In 2017, the company was acquired by Eurofins Scientific, integrating its specialized capabilities into Eurofins' global network of laboratory services. The laboratory is known for its use of advanced technologies such as LC-MS/MS to provide gold-standard results for complex nutritional studies.