Mainka at a glance
Total output 2025
> 330
€ million p.a.
Founded
1895/1949
Branches
- Lingen (head office)
- Brunsbüttel
- Gelsenkirchen
- Cologne
- Münster
- Osnabrück
- Papenburg
- Wuppertal
Mainka employees
> 750
Accident statistics
Construction projects for chemicals, energy and logistics
We plan, construct, renovate and maintain industrial buildings safely, reliably and with many years of experience. Our focus is on complex projects in sensitive industrial environments such as chemical parks, power stations, refineries, energy infrastructure and large logistics sites.
District heating construction sites in Gladbeck
For our client Uniper Wärme (now Iqony Wärme), we delivered initial district heating projects in the Ruhr region. These included new installations and rerouting of district heating pipelines, as well as the construction of building service connections. The largest project involved the installation of a 350‑metre district heating pipeline in the centre of Gladbeck — including full pipeline construction.
Figures and facts:
- Asphalt construction
- Civil engineering
- Pipeline construction
- Traffic surfaces
- Shoring works
| Customer | Iqony Wärme |
|---|---|
| Location | Gladbeck |
| Contract value | approx. €2.5 million |
| Main construction period | 10 month |
Similar references
Of our more than 750 employees, around 60% are construction site personnel, whom we train regularly. On average, we devote 2% of annual working hours to training.
For whom and why?
We generate more than 90% of our turnover in the chemical, energy and specialised logistics sectors. Customers from these sectors trust in our experience because we construct complex industrial buildings reliably and safely.
