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.
New construction Gas Terminal Emden
Construction of a New Gas Terminal in Emden
For our client Gassco, we constructed a new gas terminal in Emden — a central facility for energy supply. The project included extensive earthworks, concrete and reinforced‑concrete works, asphalt construction as well as the complete technical building services (TGA).
With around 150,000 m³ of excavated soil, 10,000 m³ of concrete and 25,000 m² of asphalt surfaces, a highly complex infrastructure was created for the safe handling and onward transfer of gas. All works were carried out during ongoing operations and included the execution of media‑tight surfaces.
Figures and facts:
- Earthworks
- Sewer and pipeline construction
- Road construction works
- Asphalt construction
- Concrete works
- Reinforced‑concrete works
- Interior works
- Construction of media‑tight surfaces
- Technical building services
- Works carried out during ongoing operations
| Customer | Gassco AS |
|---|---|
| Location | Emden, Germany |
| Contract value | approx. €28 million |
| Main construction period | 20 months |
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.







