Our philosophy

Innovative solutions
for more than 30 years

With over 30 years of experience in SCR technology,
H+H serves customers from around the world
as a competent partner.

H+H SCR Technology for lower NOx emissions
H+H SCR Technology for lower NOx emissions
  • H+H Engineering & Service

    Your expert in exhaust and air purification

    H+H Engineering & Service

    As a full-service provider of DeNOx systems for stationary and non-stationary combustion processes, SCR solutions for the marine sector, as well as CO2 systems for exhaust gas purification in greenhouses, we offer our customers tailored solutions for their specific applications.

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    A large ship, which is serviced by H+H Engineerings Service, is moored in the harbor.
  • Start Your Career at H+H!

    One Team – One Passion for Sustainability

    Start Your Career at H+H!

    The goal of creating a greener future for our planet affects us all. But the good news is: You can make a difference! Join our team and develop innovative solutions for exhaust gas purification that are used internationally.

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Since our foundation in 2007, the H+H Engineering & Service team has been supporting customers worldwide from the planning of their SCR (Selective Catalytic Reduction) system through commissioning to subsequent service. As one of the most experienced companies in this field of technology, we offer all components from a single source, 100% made in Germany.

Our approach is simple: Our solutions are as unique as your requirements.

With our DeNOx systems, you not only comply with the legal limits of international emission regulations but also achieve nitrogen oxide reduction rates of over 90% in various application areas.

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Your 360° solution

Detailed Planning and Global Service

For a perfect end result and long-term reliability, we take your individual requirements into account right from the initial planning stage. Our experienced professionals specialize in the flexible design of NOx catalysts to suit your space requirements while ensuring maximum efficiency.

After successful commissioning, your SCR system is handed over to our experienced service team. Our specialists provide worldwide service, training, performance optimization and repairs.

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Expertise you can rely on

Over 30 Years of Competence

The team led by the two managing directors, Dipl. Ing. Hartmut Ritter and Jürgen Müller, boasts over 30 years of experience in this highly specialized field, with more than 750 systems successfully commissioned worldwide.

You can see a graphical representation of a timeline on which the various milestones of the company have been marked.

Numerous Projects and Satisfied Customers

Our References Speak for Themselves

For more than 15 years, customers from the maritime, stationary and greenhouse sectors have relied on our expertise in the installation, service and maintenance of innovative SCR systems.

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Bild von einer Weltkugel mit Land und Wasserflächen auf blauem Hintergrund

Our Mission

A World with Clean Air through Ultra Low Emissions for All – People and Nature.

The generation of exhaust gases through our actions cannot be entirely prevented, but we work every day to clean them and minimize their harmful effects on humans and the environment. Our passion for environmental protection and sustainability motivates us to seek innovative solutions and further develop existing technologies. In doing so, we align our work with our guiding principle of ‘Future-Proof Action‘.

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Your Career at H+H

We need you on our team!

Together we can achieve more. Join our team and support us in our mission to create a cleaner future through cleaner air.

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