How many companies in the “Sewage treatment plant construction” industry are there in Germany?
The B2B database of dieanalysten GmbH alone lists more than 200 companies in the “Sewage treatment plant construction” industry in Germany (October 2026). Most are located in Lower Saxony (49), North Rhine-Westphalia (39), Bavaria (29).
Key figures
Companies by federal state
| State | Number | Share | per 100,000 inh. |
|---|---|---|---|
| Lower Saxony | 49 | 21% | 0.6 |
| North Rhine-Westphalia | 39 | 16% | 0.2 |
| Bavaria | 29 | 12% | 0.2 |
| Mecklenburg-Western Pomerania | 21 | 9% | 1.3 |
| Saxony | 18 | 8% | 0.4 |
| Saxony-Anhalt | 14 | 6% | 0.6 |
| Baden-Württemberg | 14 | 6% | 0.1 |
| Brandenburg | 13 | 5% | 0.5 |
| Thuringia | 10 | 4% | 0.5 |
| Schleswig-Holstein | 10 | 4% | 0.3 |
| Hesse | 6 | 3% | 0.1 |
| Rhineland-Palatinate | 5 | 2% | 0.1 |
| Saarland | 1 | 0% | 0.1 |
| Berlin | 1 | 0% | 0.0 |
| Hamburg | 0 | 0% | 0.0 |
| Germany | 238 | 100% | 0.3 |
Cities with the most companies in the “Sewage treatment plant construction” industry
Digitalization
36% of companies in the “Sewage treatment plant construction” industry have no website of their own.
Related industries
- Landscaping and gardening41,940
- Building and civil engineering69,028
- Electrical installation47,519
- Metal construction22,799
- Fuels – retail16,723
- Heating, air conditioning and ventilation – installation30,677
- Plumbing and sheet metal work29,102
- Painting and decorating business28,253
- Building construction69,071
- Civil engineering72,629
- Heating installation30,909
- Flooring installation23,069
- Paint shop12,026
- Interior finishing20,095
- Timber construction (carpentry)16,368
- Plumbing installation32,029
Frequently asked questions
How many companies in the “Sewage treatment plant construction” industry are there in Germany?
The B2B database of dieanalysten GmbH alone lists more than 200 companies in the “Sewage treatment plant construction” industry in Germany (October 2026). Most are located in Lower Saxony (49), North Rhine-Westphalia (39), Bavaria (29).
Which German cities have the most companies in the “Sewage treatment plant construction” industry?
Dresden (2), Otterndorf (2), Anklam (1), Bayreuth (1), Berlin (1).
How many companies in the “Sewage treatment plant construction” industry in Germany have a website?
64% have their own website, 40% an email address.
How current is this number?
It is recalculated daily from the current database. Last update: October 10, 2026. Businesses in liquidation or with a recognizable closure are not counted.
Cite this number
The B2B database of dieanalysten GmbH alone lists more than 200 companies in the “Sewage treatment plant construction” industry in Germany (source: dieanalysten B2B database, October 2026, https://adressen.dieanalysten.com/en/statistics/sewage-treatment-plant-construction).
The statistics are licensed under CC BY 4.0: free to use, including commercially, with attribution “dieanalysten” and a link.
Method: businesses in the database of dieanalysten GmbH minus a 5% safety margin; businesses in liquidation or with a recognizable closure are excluded. See methodology. As of October 10, 2026.