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.
Turnkey Construction of a STATCOM System in Betzdorf
For our client Siemens Energy, we successfully delivered a turnkey STATCOM system in Betzdorf. The project included all concrete and reinforced‑concrete works, technical building equipment, as well as façade and road construction works.
Special requirements — such as media‑tight surfaces and high‑precision formwork and reinforcement works — were implemented to the highest standard.
Figures and facts:
- Earthworks
- Technical building equipment
- Sewer and pipeline construction
- Façade works
- Paving works
- Concrete construction
- Roadworks
- Reinforced‑concrete works
- Production of media‑tight surfaces
- Formwork and reinforcement works
| Location | Betzdorf |
|---|---|
| Contract value | approx. €4.5 million |
| Main construction period | 12 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.
