As of 1.2.22 membraPure GmbH will acquire a 51% stake in Hartmann GmbH. With this participation, a company group with two still legally independent GmbHs with more than 10 million in sales, a close-meshed service and sales network in Germany as well as sales offices in the most important regions of the world will be created. The complementary products create a complete range of water treatment from deionized to ultrapure water with associated analyzers (TOC and IC) and service (customer service and validation), which thus has a clear USP. In addition, Hartmann’s medical division remains a major business area, bridging the gap to water treatment in the medical sector. The alliance allows synergies (e.g. shorter distances, economies of scale) to be realized in almost all areas and will thus be able to serve customers even more comprehensively and efficiently.

Statement of the managing director of Hartmann Paul Hartmann: 

“We are pleased that we have found a partner in membraPure that gives us access to foreign markets and through which we now can also offer customers high-quality products such as TOC analyzers and ultra pure water systems.”

Paul Hartmann, CEO Hartmann GmbH mit Emil
Erdmann Flindt, CEO membraPure mit Emil

Statement of the managing director of membraPure Dr. Erdmann Flindt:

“Hartmann expands our product range of the water offer with the large deionized water plants and also contributes with the area-wide service in Germany an important asset to strengthen the domestic market.”


After the first meeting at the membraPure company in Hennigsdorf at the beginning of the year, a visit to Hartmann was scheduled for last Wednesday. In addition to a constructive exchange and a factory tour, there was also a little something to cut, which sweetened the day for everyone. Mr. Paul Hartmann as host was very happy to take on this task.

Paul Hartmann, CEO Hartmann GmbH
Torte membraPure und Hartmann
Group Image membraPure and Hartmann

Short profiles of Hartmann GmbH

Hartmann GmbH specializes in complete deionized water treatment in clinics and medical practices, laboratories, research institutions and industrial companies. ISO 9001 and ISO 13485 certification ensures a high focus on quality. In doing so, Hartmann GmbH advances to an independent production-related service provider with the special fields:


– Pure and ultra pure water technology

– Cleaning, disinfection and drying machines

– Quality assurance through validation


With 40 years of experience in the industry, Hartmann develops efficient, cost-effective and reliable solutions with high quality from your very individual requirements. A high running performance of the plants and equipment as well as a sustainable economic efficiency are focused features for your satisfaction. However, should failures occur, our customer-oriented and comprehensive customer service is available to you around the clock throughout Germany.



Short profile of membraPure GmbH

membraPure GmbH is an owner-managed company based in Hennigsdorf near Berlin. Since 1993, the company has been developing and distributing water treatment systems and associated analyzers worldwide. membraPure is a firmly established player in the market for pure and ultra pure water systems, TOC, amino acid analyzers and ion chromatographs.


As a recognized manufacturer, membraPure attaches great importance to the continuous development of the systems and applications, to research and to apply for new patents.

Only high-end technologies such as EDI, post-column derivatization with ninhydrin and NDIR-TOC detection are used.


Together with our manufacturing company PMA GmbH, we have the ISO 13485:2016 certification (for medical devices) as well as the ISO 9001:2015 certification for several years already.


The membraPure devices are low-maintenance and have a module for self-diagnosis, the data of which can be queried online or by telephone in the event of a malfunction.

The systems are sold all over the world via a dealer network and with own sales offices in China, India, Vietnam, Malaysia and Brazil.


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Analysis of the amino acid composition of cell culture media
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