Medhold/AML-Riatol is a private clinical laboratory, carries out analysis for human, industrial, and veterinary medicines in Belgium and the Netherlands. The company provides medical analyses for bio-and immunochemistry, immunology, hematology, microbiology, anatomic pathology, molecular biology, radio isotopes, toxicology, veterinary science, and veterinary pathology.

Its customers include general practitioners, hospital labs, industries, industrial medicine services, and vets.

Waterland had a majority stake in Medhold/AML-Riatol.