Jan Lindeman

DDL Diagnostic Laboratory BV operates as a testing and contract research laboratory specializes in molecular diagnostics testing and assay development. Its services include tailor-made diagnostic assays, project management, laboratory services, molecular pathology services, training and consultancy and molecular epidemiology. The company was founded in 1985 and is headquartered in Rijswijk, the Netherlands.

Part of IN Groupe, Keesing Reference Systems BV is a leading provider of identity verification solutions to various industries. The company is based in Amsterdam, Netherlands. Keesing's solutions include AuthentiScan, a real-time ID verification solution, and DocumentChecker, a comprehensive database of reference information for ID documents and banknotes. The Dutch company was founded in 1911 by Isaäc Keesing. Jan Lindeman has been the CEO of the company since 2021. Keesing Reference Systems was acquired by SURYS, a subsidiary of IN Groupe from Telegraaf Media Groep NV on February 01, 2010 for $5.56 million.

Labo Bio-medical Products BV operates a production laboratory for molecular diagnostic and immunodiagnostic assays. It offers contract-manufacturing services for specialty diagnostic products. The firm was founded by Jan Lindeman in 1992 and is headquartered in Rijswijk, the Netherlands.