About us

Portrait of OSNA Pumps

The history of OSNA Pumps (OSNA-Pumpen GmbH) started on May 1, 1890, in Osnabrück, a city in the German state of Lower Saxony. Under the supervision of its founder Johann Hartlage, what was originally a workshop quickly gained in importance nationwide. The longevity of their piston pumps established the excellent reputation of what later became OSNA-Pumpen GmbH. By the end of the 1930s the machine and pump factory was already known and operating nationwide. Some of the pumps installed back then are still in operation today, almost 90 years later.

Our future is based on tradition

Today, managing director Klaus Wessel is the fourth generation to run the family business OSNA-Pumpen GmbH. Focusing on the future, the company operates in a global environment, identifies digitalization potential and is constantly improving the energy efficiency of its pumps and systems – including in cooperation with local universities. At the core of sustainable development, Wessel says, however, lies the solution-oriented, analytical and competent cooperation between contractor and client, as has been the tradition at OSNA for over 125 years.


OSNA Pumps supports your project in partnership, practically oriented and pragmatically to ensure your success. If neither our sophisticated serial models developed in-house, nor individually developed pumps are suitable, we will assist you with a goal-oriented approach to find the best solution beyond the OSNA brand world.


In addition to the indestructible pump quality, one of the main strengths of OSNA Pumps is thorough requirements analysis. Our skilled employees develop tailor-made pump solutions and water treatment systems in cooperation with clients from industry, municipal utilities, the construction industry and agriculture.

Highly skilled

Off-the-shelf solutions are not always suitable, in which case OSNA’s engineers come into their own with their technical expertise. Taking the required performance specifications into account and using the appropriate alloys, materials and finishing techniques, OSNA creates unique pump units that can withstand even the most demanding fluids under extreme operating conditions.