Generational change at Hydrotox

We have the pleasure informing you that 35 years after establishing of Hydrotox – Laboratory for Ecotoxicology and Water Protection GmbH, Dr. Stefan Gartiser will retire. The business handover was carefully prepared and completed in January 2024, when Hydrotox GmbH was acquired by Dr. Brill Institutes Group based in Hamburg. The new managing director of Hydrotox GmbH is Dr. Florian H. H. Brill. Your local contact at Hydrotox remains Dr. Christoph Hafner, who is the representative of the local management and has been assigned with the respective power of attorney.

Thus, a new generation takes over at Hydrotox. However, you as our customer will not face apparent changes in the operational processes, as the entire Hydrotox team continues to support you in future with the usual trustworthiness at Freiburg.

The Dr. Brill Institutes Group is a medium-size, family-owned group of companies with the headquarter in Hamburg. The group consists of various laboratories such as the Institute for Hygiene and Microbiology and the Institute for Antifouling and Biocorrosion and employs around 70 people at various locations in Germany. By integrating Hydrotox, synergy effects are released by optimizing and streamlining processes. In addition, the Dr. Brill Institutes Group offers its customers an expanded product portfolio from a wide range of laboratory services to regulatory consulting services in the new Dr. Brill Regulatory Services GmbH. For more information, visit

We look forward continuing our successful cooperation in the future.

Best regards