LDN was founded in 1996 in Nordhorn, Germany, with the aim to develop, manufacture and supply specialty in-vitro diagnostics test systems and innovative technologies to the clinical and research laboratory markets.

From the beginning the determination of biogenic amines with immunological test systems was in the core of our business – where we are nowadays the worldwide market leader. Integral part of this success are e.g. our assays for the quantitative determination of free metanephrines in plasma, the catecholamines, histamine and serotonin.

This positive outcome encouraged us to expand our business to related diagnostic areas such as food safety, food intolerance, neurotransmitters and amino acids.

LDN products are distributed in over 80 countries by a network of OEM partners and distributors. Our focus aside from selling great products is to support them.