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ZENNER International GmbH & Co. KG

Across the world, ZENNER stands for innovation, quality and precision in measurement technology. At ZENNER, we have been developing, producing and marketing innovative measuring equipment for global markets for over 100 years.

Facts & Figures


Saarbrücken, Germany


ZENNER International GmbH & Co. KG exports its measuring instruments to over 90 countries.


Environmental management: certified in accordance with ISO 14001

Quality management: certified in accordance with ISO 9001:2008


Production and marketing of measurement equipment:

Water meters | Heat and cooling meters | Heat cost allocators | Gas meters | Systems technology | Smart Metering | Smoke detectors


Water meters: ~ 3.5 million units

Heat meters: ~ 300,000 units

Gas meters: ~ 6,5 million units

Smoke detectors: ~ 1,1 million units

Heat cost allocators: ~ 2 million units

Minol-ZENNER Group

The Minol-ZENNER Group is one of the leading service providers and equipment manufacturers for consumption-based energy cost billing in the world.

Together, both companies are the heart of a family-run consortium that, with its measuring equipment and services, makes energy consumption transparent and guarantees an accurate allocation of the costs. The Minol-ZENNER Group links two areas of expertise: hardware and solutions as well as service and advice from a single source.

This combination is unique in the metering industry. To this end, the consortium engages around 4,200 employees worldwide.

The meters and measuring equipment required for the billing are manufactured in the Minol-ZENNER Group’s own factories. With subsidiaries and distributors in more than 40 countries and customers in more than 90 countries, the family-managed group is well-connected.

In 2018, the Minol-ZENNER Group expanded by welcoming BRUNATA A/S into the family.

The Minol-ZENNER Group is based on three enterprises, each with a different background.

produces and markets measurement technology for global markets. The main target groups are utilities, energy providers and municipalities.

is a leading global service provider for the real estate industry specialising in consumption billing.

Brunata Logo

is a specialist in heating billing and an international service provider with its headquarters in Denmark and subsidiaries across Europe.


ZENNER International are accredited and connected to continuously develop and set best practice across our industries: