How many companies in the “Sewage treatment plant” industry are there in Germany?
The B2B database of dieanalysten GmbH alone lists more than 800 companies in the “Sewage treatment plant” industry in Germany (October 2026). Most are located in Bavaria (164), North Rhine-Westphalia (120), Baden-Württemberg (98).
Key figures
Companies by federal state
| State | Number | Share | per 100,000 inh. |
|---|---|---|---|
| Bavaria | 164 | 20% | 1.2 |
| North Rhine-Westphalia | 120 | 15% | 0.7 |
| Baden-Württemberg | 98 | 12% | 0.9 |
| Lower Saxony | 87 | 11% | 1.1 |
| Hesse | 69 | 9% | 1.1 |
| Saxony | 48 | 6% | 1.2 |
| Schleswig-Holstein | 42 | 5% | 1.4 |
| Brandenburg | 41 | 5% | 1.6 |
| Saxony-Anhalt | 33 | 4% | 1.5 |
| Thuringia | 29 | 4% | 1.4 |
| Rhineland-Palatinate | 27 | 3% | 0.6 |
| Mecklenburg-Western Pomerania | 21 | 3% | 1.3 |
| Hamburg | 6 | 1% | 0.3 |
| Saarland | 5 | 1% | 0.5 |
| Berlin | 5 | 1% | 0.1 |
| Bremen | 1 | 0% | 0.1 |
| Germany | 807 | 100% | 1.0 |
Cities with the most companies in the “Sewage treatment plant” industry
Digitalization
50% of companies in the “Sewage treatment plant” industry have no website of their own.
Related industries
- Fuels – retail16,723
- Electricity supply13,942
- Solar technology and photovoltaics10,750
- Recycling10,625
- Fuels – wholesale4,162
- Waste collection and container service7,104
- Mineral oil – wholesale3,115
- Waste disposal9,158
- Energy and environmental consulting2,745
- Energy and environmental technology – planning2,421
- Solar systems – installation2,395
- Container service2,292
- Energy consulting2,762
- Scrap and secondary raw materials – wholesale2,074
- Environmental services provider3,090
- Sewer cleaning1,444
Frequently asked questions
How many companies in the “Sewage treatment plant” industry are there in Germany?
The B2B database of dieanalysten GmbH alone lists more than 800 companies in the “Sewage treatment plant” industry in Germany (October 2026). Most are located in Bavaria (164), North Rhine-Westphalia (120), Baden-Württemberg (98).
Which German cities have the most companies in the “Sewage treatment plant” industry?
Hamburg (6), Berlin (5), Essen (5), Münster (3), Sassenberg (3).
How many companies in the “Sewage treatment plant” industry in Germany have a website?
50% have their own website, 31% 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 800 companies in the “Sewage treatment plant” industry in Germany (source: dieanalysten B2B database, October 2026, https://adressen.dieanalysten.com/en/statistics/sewage-treatment-plant).
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.