Industry code 37.0 · Oslo
Sewerage in Oslo
There are 26 active companies in sewerage in Oslo. 1 of them were registered in the last 12 months. Together they have 100 registered employees. The largest company is Norva24 Gravco AS with 42 employees. The oldest, Midt-Gålåflaten Avløpslag, was founded in 2004. 38% are limited companies.
- Active companies
- 26
- New in the last 12 months
- 1
- Registered employees
- 100
- Share of limited companies
- 38 %
The largest companies in sewerage in Oslo
Sorted by number of employees. Figures are from the Register of Legal Entities and the Register of Company Accounts.
Newest companies in sewerage in Oslo
- Hummelvika Vann Og Avløpslag - Prosjekt SA6 Mar 2026
- Holmsbrekkodden Renseanlegg SA5 Nov 2025
- Fjellsvardevegen Renseanlegg14 Dec 2021
- Spylexperten AS14 Oct 2021
- Vann Og Avløpsgruppen AS29 Sept 2021
- Kjempeholmen Vann Og Avløp Driftsforetak SA9 Mar 2021
- Wastewater AS15 Apr 2020
- Rørfornying Norge AS31 Aug 2019
- Liveien Vann Og Avløp SA1 Oct 2018
- Siljeholmen Vann Og Avløp SA6 Feb 2018
Frequently asked questions
How many companies in sewerage are there in Oslo?
The Register of Legal Entities lists 26 active companies in sewerage in Oslo. 1 of them were registered in the last 12 months.
Which is the largest company in sewerage in Oslo?
Norva24 Gravco AS is the largest by number of employees, with 42 employees. The organisation number is 998586259.
How many people work in sewerage in Oslo?
The companies have 100 registered employees in total. The figures are based on employee counts in the Register of Legal Entities, and 4 of the 25 largest companies have reported employees.
How long have there been companies in sewerage in Oslo?
The oldest active company, Midt-Gålåflaten Avløpslag, was founded in 2004. 38% 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 37.0. Figures are updated continuously.