Industry code 37.00 · Trøndelag
Sewerage in Trondheim
There are 8 active companies in sewerage in Trondheim. No new companies have been registered in the last 12 months. The oldest, Ervik Kloakklag, was founded in 1982. 13% are limited companies.
- Active companies
- 8
- New in the last 12 months
- 0
- Registered employees
- –
- Share of limited companies
- 13 %
The largest companies in sewerage in Trondheim
Sorted by number of employees. Figures are from the Register of Legal Entities and the Register of Company Accounts.
| # | Company | Org. no. | Employees | Revenue | Founded |
|---|---|---|---|---|---|
| 1 | Biopro Consult AS | 912592359 | – | NOK 168k | 2013 |
| 2 | Solunda Kloakklag | 917928940 | – | – | 1982 |
| 3 | Tjurruhaugen Avløpslag | 928657868 | – | – | 2021 |
| 4 | Valslag Avløp SA | 929511735 | – | – | 2023 |
| 5 | Bruhaugen Hyttegrend Renseanlegg | 933691888 | – | – | 2012 |
| 6 | Hardmovegen Avløpslag | 935972183 | – | – | 2025 |
| 7 | Vaadan Vann Og Avløp SA | 991609156 | – | NOK 545.6k | 1983 |
| 8 | Ervik Kloakklag | 996099806 | – | – | 1982 |
Newest companies in sewerage in Trondheim
- Hardmovegen Avløpslag14 Aug 2025
- Bruhaugen Hyttegrend Renseanlegg17 Sept 2024
- Valslag Avløp SA19 Apr 2023
- Tjurruhaugen Avløpslag2 Feb 2022
- Solunda Kloakklag2 Dec 2016
- Biopro Consult AS16 Oct 2013
- Ervik Kloakklag6 Dec 2010
- Vaadan Vann Og Avløp SA2 Oct 2007
Frequently asked questions
How many companies in sewerage are there in Trondheim?
The Register of Legal Entities lists 8 active companies in sewerage in Trondheim. No new companies have been registered in the last 12 months.
Which company is the largest in sewerage in Trondheim?
None of the companies have registered a number of employees. Biopro Consult AS (org. no. 912592359) is one of the registered companies.
How long have there been companies in sewerage in Trondheim?
The oldest active company, Ervik Kloakklag, was founded in 1982. 13% of the companies are limited companies.
Source: the Register of Legal Entities and the Register of Company Accounts. The overview shows active companies registered in the municipality with industry code 37.00. Figures are updated continuously.

