Industry code 71.121 · Buskerud
Building engineering consultancy in Drammen
There are 152 active companies in building engineering consultancy in Drammen. 11 of them were registered in the last 12 months. Together they have 168 registered employees. The largest company is Siv. Ing. Stener Sørensen AS with 46 employees. The oldest, Ac Juel AS, was founded in 1978. 61% are limited companies.
- Active companies
- 152
- New in the last 12 months
- 11
- Registered employees
- 168
- Share of limited companies
- 61 %
The largest companies in building engineering consultancy in Drammen
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 | Siv. Ing. Stener Sørensen AS | 814266222 | 46 | NOK 56.6 m | 2014 |
| 2 | Fremst AS | 922941653 | 22 | NOK 28.4 m | 2019 |
| 3 | Viken Bygg/Entreprenør AS | 915554970 | 20 | NOK 65.5 m | 2015 |
| 4 | Fremje Vvs AS | 930067741 | 17 | NOK 16.6 m | 2022 |
| 5 | Heiberg & Tveter AS | 985767297 | 16 | NOK 30.7 m | 2003 |
| 6 | Em Teknikk AS | 980422720 | 12 | NOK 21.8 m | 1998 |
| 7 | Nbbo Byggtek AS | 976815653 | 10 | NOK 11.9 m | 1996 |
| 8 | Nexconsult AS | 991968334 | 10 | NOK 21.4 m | 2007 |
| 9 | Reistad AS | 924691670 | 8 | NOK 2.7 m | 2020 |
| 10 | Sivilingeniør Will Arentz AS | 985060851 | 7 | NOK 18.8 m | 2002 |
| 11 | Lexberg Prosjektadministrasjon AS | 812828622 | – | NOK 2.8 m | 2013 |
| 12 | Aasen Byggeledelse AS | 817373372 | – | NOK 2.5 m | 2016 |
| 13 | Naga AS | 819074402 | – | NOK 0 | 2017 |
| 14 | Excenta AS | 823773552 | – | NOK 735.9k | 2019 |
| 15 | Handegaard Multiservice | 823958552 | – | – | – |
| 16 | Helge Wam, Ingeniør | 824564922 | – | – | – |
| 17 | Sivilingeniør Ragnar Hagen | 826823542 | – | – | – |
| 18 | Hmsk-Praktikeren Korsnes | 827493422 | – | – | – |
| 19 | Rib Konsult AS | 827660302 | – | NOK 1.7 m | 2021 |
| 20 | House Of Von Hirsch | 832762792 | – | – | – |
| 21 | Struktura Bygg AS | 836435362 | – | NOK 28.4k | 2025 |
| 22 | Amundsen Byggtjenester | 836505522 | – | – | – |
| 23 | Karlsen Masseberegning AS | 911668335 | – | NOK 1.3 m | 2013 |
| 24 | Høvding Holding AS | 912206823 | – | NOK 48.9k | 2013 |
| 25 | Ignis Teknikk AS | 912521818 | – | NOK 1.2 m | 2013 |
Newest companies in building engineering consultancy in Drammen
- Gr Prosjekt AS27 Aug 2026
- Movtajeva23 Aug 2026
- Gr Investering AS14 Aug 2026
- Thore Carlsen23 Jun 2026
- Overvannsspesialisten Bjørnar Sand19 Mar 2026
- Rune Håndlykken Rådgjevar Kulturbygg3 Mar 2026
- T.o Takst Og Eiendom AS23 Feb 2026
- Oxford Holding AS27 Jan 2026
- Isewa AS22 Jan 2026
- At Byggesak & Rådgivning Amir Tariq11 Dec 2025
Frequently asked questions
How many companies in building engineering consultancy are there in Drammen?
The Register of Legal Entities lists 152 active companies in building engineering consultancy in Drammen. 11 of them were registered in the last 12 months.
Which is the largest company in building engineering consultancy in Drammen?
Siv. Ing. Stener Sørensen AS is the largest by number of employees, with 46 employees. The organisation number is 814266222.
How many people work in building engineering consultancy in Drammen?
The companies have 168 registered employees in total. The figures are based on employee counts in the Register of Legal Entities, and 10 of the 25 largest companies have reported employees.
How long have there been companies in building engineering consultancy in Drammen?
The oldest active company, Ac Juel AS, was founded in 1978. 61% 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 71.121. Figures are updated continuously.

