Industry code 36 · Oslo

Water collection, treatment and supply in Oslo

There are 59 active companies in water collection, treatment and supply in Oslo. 3 of them were registered in the last 12 months. Together they have 9 registered employees. The largest company is Flocean AS with 9 employees. The oldest, Moeverket Vannlag, was founded in 1962. 25% are limited companies.

Active companies: 59
New in the last 12 months: 3
Registered employees: 9
Share of limited companies: 25 %

The largest companies in water collection, treatment and supply in Oslo

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	Flocean AS	933017591	9	NOK 1.1 m	2024
2	Ytre Vesterøya Vann Og Avløp SA	814198782	–	–	2014
3	Hydroasset AS	831050632	–	–	2023
4	Papperø Vann Og Avløpslag SA	886929382	–	–	2002
5	Metellus AS	892081182	–	–	2007
6	Jørestrandsveien Vann Og Avløps Vel SA	896351222	–	–	2010
7	Rognsfjorden Vann Og Avløp SA	911557770	–	–	2013
8	Nautnesveien Vann- Og Avløp AS	911576740	–	NOK 49.5k	2012
9	Breisand Vann- Og Avløpsforening	911602385	–	–	2013
10	Markestranda & Omegn Vannlag SA	911903482	–	–	2013
11	Normandbo Vann Og Avløp SA	911948842	–	–	2013
12	Sandø Vann- Og Avløp SA	914207525	–	–	2014
13	Øyenkilveien Vann- Og Avløpslag	914272378	–	–	2014
14	Nordre Gjernes Vannlag SA	915517560	–	–	2015
15	Globe Water AS	917546770	–	NOK 2k	2016
16	Natten Alpin Vannverk AS	918784918	–	NOK 269.5k	2017
17	Ildjernet Og Omegn Vann- Og Avløpslag SA	919205776	–	NOK 0	2017
18	Nordre Bomansvik Vann- Og Avløpslag SA	920249590	–	–	2017
19	Garnholmen Va SA	921016328	–	NOK 96.3k	2018
20	Ildjernet Og Omegn Vann- Og Avløp AS	921178468	–	NOK 330k	2018
21	Bråtebuktveien Utbyggingsselskap SA	922417873	–	–	2019
22	Solbergbekken Vann Og Avløp SA	922845948	–	–	2019
23	Kasperklova Vann- Og Avløpsforening	923211888	–	–	2000
24	Claimhunt AS	924455543	–	NOK 441k	2019
25	Flatåsen Vann- Og Avløpslag Drift SA	924476915	–	–	2019

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Newest companies in water collection, treatment and supply in Oslo

Hummelvika Vann Og Avløpslag - Drift SA2 Jun 2026
Hegreneset Energisentral AS12 Jan 2026
Skarsvika SA4 Dec 2025
Eikelandstjenna Vannlag22 Oct 2025
Marikova Vannverk21 May 2025
Ellingsvika Sør Vann- Og Avløpslag4 Apr 2025
Vasskalven Va-Lag SA4 Nov 2024
Apohold AS17 Oct 2024
Hydroasset 1 AS29 Jul 2024
Flocean AS15 Feb 2024

Frequently asked questions

How many companies in water collection, treatment and supply are there in Oslo?

The Register of Legal Entities lists 59 active companies in water collection, treatment and supply in Oslo. 3 of them were registered in the last 12 months.

Which is the largest company in water collection, treatment and supply in Oslo?

Flocean AS is the largest by number of employees, with 9 employees. The organisation number is 933017591.

How many people work in water collection, treatment and supply in Oslo?

The companies have 9 registered employees in total. The figures are based on employee counts in the Register of Legal Entities, and 1 of the 25 largest companies have reported employees.

How long have there been companies in water collection, treatment and supply in Oslo?

The oldest active company, Moeverket Vannlag, was founded in 1962. 25% of the companies are limited companies.

Explore further

Sub-industries in Oslo

36.0 Water collection, treatment and supply (59)

Source: the Register of Legal Entities and the Register of Company Accounts. The overview shows active companies registered in the municipality with industry code 36. Figures are updated continuously.