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.
Laboratory Facility for Evonik in Marl
For our client Evonik, we constructed a modern laboratory building in Marl. A defining feature of the project is the approximately 5,000 m² of elastic floor coverings as well as the high‑quality brick façade, which gives the building its distinctive character.
The main entrance stands out with a combination of post‑and‑beam constructions, brick slip elements, and fibre‑cement components.
The outdoor facilities were executed by our civil engineering team, which is permanently based in the Marl Chemical Park — a decisive advantage in terms of flexibility and adherence to deadlines. After completing this project, we were able to hand over our third laboratory building to Evonik.
Figures and facts:
- Sewer and pipeline construction
- Reinforced‑concrete works
- Formwork and reinforcement works
- Concrete construction
- Earthworks
- Interior finishing works
| Customer | Evonik |
|---|---|
| Location | Marl |
| Contract value | ~ 12 Mio. € |
| Main construction period | 28 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.
