Industry code 43.221 · Trøndelag
Plumbing installation in Trondheim
There are 143 active companies in plumbing installation in Trondheim. 13 of them were registered in the last 12 months. Together they have 663 registered employees. The largest company is K Lund AS with 152 employees. The oldest, K Lund AS, was founded in 1964. 79% are limited companies.
- Active companies
- 143
- New in the last 12 months
- 13
- Registered employees
- 663
- Share of limited companies
- 79 %
The largest companies in plumbing installation 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 | K Lund AS | 917810346 | 152 | NOK 237.9 m | 1964 |
| 2 | Flow Trøndelag Vvs AS | 817921892 | 62 | NOK 138.6 m | 2016 |
| 3 | H Granbo Vvs AS | 929081323 | 51 | NOK 86.5 m | 2022 |
| 4 | Ips Norway AS | 923370064 | 41 | NOK 125.5 m | 2019 |
| 5 | Rørfunn AS | 974437589 | 39 | NOK 82.4 m | 1995 |
| 6 | Heimdal Industriservice AS | 971230177 | 31 | NOK 63.2 m | 1994 |
| 7 | Mælen Blikk Og Ventilasjon AS | 919653191 | 28 | NOK 50 m | 2017 |
| 8 | Haralds Vvs AS | 980859762 | 25 | NOK 38.6 m | 1998 |
| 9 | Ole Sivertsen AS | 817842712 | 20 | NOK 28.5 m | 1976 |
| 10 | Trondheim Vvs AS | 935505836 | 20 | NOK 37.8 m | 2025 |
| 11 | Værnes AS | 917249431 | 19 | – | 1970 |
| 12 | Aqua Rørfornying AS | 925568201 | 19 | NOK 22.6 m | 2020 |
| 13 | Rørlegger 1 AS | 937912803 | 17 | – | 2026 |
| 14 | Hadak AS | 960330498 | 15 | NOK 22.1 m | 1991 |
| 15 | Prorør AS | 923116702 | 12 | NOK 15.4 m | 2019 |
| 16 | Badhuset AS | 988072710 | 12 | NOK 14.9 m | 2005 |
| 17 | Union Vvs AS | 930755869 | 10 | NOK 12.8 m | 2022 |
| 18 | Helgemo Rørteknikk AS | 877309282 | 9 | NOK 8.8 m | 1997 |
| 19 | Hofstad Vvs AS | 919486163 | 9 | NOK 15.3 m | 2017 |
| 20 | Grønn Energi Midt-Norge AS | 995562421 | 9 | NOK 51.1 m | 2010 |
| 21 | Fjernvarmeinstallasjon AS | 912243745 | 8 | NOK 13.6 m | 2013 |
| 22 | Aqua Rørservice AS | 931007017 | 8 | NOK 16.6 m | 2023 |
| 23 | Protek Vvs AS | 933804127 | 8 | NOK 9.3 m | 2024 |
| 24 | All-Rør AS | 978653677 | 8 | NOK 13.1 m | 1997 |
| 25 | Rørekspert1 AS | 918336303 | 6 | NOK 11.7 m | 2017 |
Newest companies in plumbing installation in Trondheim
- Lien AS3 Sept 2026
- Bergum Rørleggerservice AS16 Jul 2026
- Rørlegger 1 AS17 Jun 2026
- Brå Rørservice26 May 2026
- Hassel Vvs5 May 2026
- Vannbåren Varme AS9 Apr 2026
- Timm Ventures AS9 Mar 2026
- Ch Rørleggervakten Trondheim AS6 Mar 2026
- H Grimsmo21 Feb 2026
- Rør Service Hakimi17 Feb 2026
Frequently asked questions
How many companies in plumbing installation are there in Trondheim?
The Register of Legal Entities lists 143 active companies in plumbing installation in Trondheim. 13 of them were registered in the last 12 months.
Which is the largest company in plumbing installation in Trondheim?
K Lund AS is the largest by number of employees, with 152 employees. The organisation number is 917810346.
How many people work in plumbing installation in Trondheim?
The companies have 663 registered employees in total. The figures are based on employee counts in the Register of Legal Entities, and 25 of the 25 largest companies have reported employees.
How long have there been companies in plumbing installation in Trondheim?
The oldest active company, K Lund AS, was founded in 1964. 79% of the companies are limited companies.
Explore further
Plumbing installation in nearby municipalities
Source: the Register of Legal Entities and the Register of Company Accounts. The overview shows active companies registered in the municipality with industry code 43.221. Figures are updated continuously.