Industry code 43.1 · Trøndelag
Demolition and site preparation in Trondheim
There are 134 active companies in demolition and site preparation in Trondheim. 8 of them were registered in the last 12 months. Together they have 735 registered employees. The largest company is Bn Entreprenør AS with 135 employees. The oldest, Ottar Augdal AS, was founded in 1986. 57% are limited companies.
- Active companies
- 134
- New in the last 12 months
- 8
- Registered employees
- 735
- Share of limited companies
- 57 %
The largest companies in demolition and site preparation 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 | Bn Entreprenør AS | 985671230 | 135 | NOK 407.2 m | 2003 |
| 2 | Anlegg Og Entreprenørservice Aoes AS | 920212220 | 115 | NOK 161.2 m | 2018 |
| 3 | Solberg Maskin AS | 999327869 | 68 | NOK 134.7 m | 2012 |
| 4 | Bp Entreprenør AS | 912628752 | 45 | NOK 131.2 m | 2013 |
| 5 | Johannessen AS | 922636761 | 36 | NOK 53 m | 2019 |
| 6 | AS Sanering | 926008420 | 29 | NOK 28.5 m | 2020 |
| 7 | Dovre Entreprenør AS | 943068593 | 27 | NOK 83.9 m | 1987 |
| 8 | Ottar Augdal AS | 938524831 | 26 | NOK 70.5 m | 1986 |
| 9 | Torven Entreprenør AS | 999118305 | 25 | NOK 15.1 m | 2012 |
| 10 | Consto Anlegg Midt AS | 922193770 | 24 | NOK 345.4 m | 2018 |
| 11 | Total Teknisk AS | 998477190 | 24 | NOK 62.7 m | 2012 |
| 12 | Lars Høyem AS | 924987065 | 21 | NOK 77.1 m | 2020 |
| 13 | Graver AS | 987295058 | 18 | NOK 41.7 m | 2004 |
| 14 | J K B Maskin AS | 935788730 | 17 | NOK 18.7 m | 2025 |
| 15 | Nordic Entreprenør AS | 926590464 | 14 | NOK 16.5 m | 2021 |
| 16 | Gjervan AS | 992590939 | 14 | NOK 14.8 m | 2008 |
| 17 | Jv Demolering AS | 995608383 | 14 | NOK 7.5 m | 2010 |
| 18 | Jon Arne Langørgen AS | 913561090 | 12 | NOK 64.1 m | 2014 |
| 19 | Anleggspartner 1 Midt Norge AS | 894969342 | 10 | NOK 11.4 m | 2010 |
| 20 | Høgmo Fjellsprenging AS | 944671668 | 10 | NOK 33.5 m | 1987 |
| 21 | Haw Anlegg AS | 997389484 | 10 | NOK 10.7 m | 2011 |
| 22 | Terminalen Entreprenør AS | 912843386 | 9 | NOK 33.4 m | 2013 |
| 23 | Husa Maskin AS | 926455656 | 8 | NOK 12.4 m | 2021 |
| 24 | Graveservice K Rønning AS | 983258018 | 7 | NOK 8 m | 2001 |
| 25 | Mjølner-Maskin AS | 931631403 | 6 | NOK 3.2 m | 2023 |
Newest companies in demolition and site preparation in Trondheim
- Wold Multitjenester1 Sept 2026
- Stian Myrvang Uteområde1 Jun 2026
- H.s. Haugen Maskinservice15 May 2026
- Bpt Miljø AS29 Apr 2026
- Hanebrekke Service AS27 Feb 2026
- Husby Anlegg AS15 Jan 2026
- Kjærbo Kristiansen Maskin18 Nov 2025
- Hanebrekke Invest AS14 Nov 2025
- Lørum Asfaltfiks11 Sept 2025
- Lars Brækstad7 Aug 2025
Frequently asked questions
How many companies in demolition and site preparation are there in Trondheim?
The Register of Legal Entities lists 134 active companies in demolition and site preparation in Trondheim. 8 of them were registered in the last 12 months.
Which is the largest company in demolition and site preparation in Trondheim?
Bn Entreprenør AS is the largest by number of employees, with 135 employees. The organisation number is 985671230.
How many people work in demolition and site preparation in Trondheim?
The companies have 735 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 demolition and site preparation in Trondheim?
The oldest active company, Ottar Augdal AS, was founded in 1986. 57% of the companies are limited companies.
Explore further
Demolition and site preparation in nearby municipalities
Other industries in the same group in Trondheim
Source: the Register of Legal Entities and the Register of Company Accounts. The overview shows active companies registered in the municipality with industry code 43.1. Figures are updated continuously.

