Industry code 43 · Buskerud
Specialised construction activities in Drammen
There are 915 active companies in specialised construction activities in Drammen. 71 of them were registered in the last 12 months. Together they have 2,860 registered employees. The largest company is Granitor Electro AS with 489 employees. The oldest, AS Mjøndalen Installasjon, was founded in 1967. 49% are limited companies.
- Active companies
- 915
- New in the last 12 months
- 71
- Registered employees
- 2,860
- Share of limited companies
- 49 %
The largest companies in specialised construction activities 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 | Granitor Electro AS | 897688182 | 489 | NOK 626.8 m | 2011 |
| 2 | Ingeniør Ivar Pettersen AS | 961773490 | 240 | NOK 327.4 m | 1991 |
| 3 | Mjøndalen Mur Og Puss AS | 973197207 | 109 | NOK 213.6 m | 1995 |
| 4 | Aktiv Veidrift AS | 990679886 | 97 | NOK 323 m | 2006 |
| 5 | Veas Rør AS | 812481312 | 95 | NOK 182.6 m | 2013 |
| 6 | Abicon Elektro AS | 976052560 | 89 | NOK 135.7 m | 1996 |
| 7 | Malermester Buer Drammen AS | 989959581 | 73 | NOK 168.7 m | 2006 |
| 8 | Vito Teknisk Entreprenør AS | 884260922 | 71 | NOK 140.8 m | 2002 |
| 9 | Lothe & Motzfeldt AS | 912012212 | 58 | NOK 81.4 m | 1987 |
| 10 | Buskerud Blikk & Montasje AS | 984643845 | 53 | NOK 128.8 m | 2002 |
| 11 | Dpend Vvs AS | 988416487 | 52 | NOK 84.1 m | 2005 |
| 12 | Norsk Brannvern AS | 920595359 | 49 | NOK 55.4 m | 2018 |
| 13 | Promostal AS | 817317812 | 47 | NOK 44.7 m | 2016 |
| 14 | Arro Elektro AS | 979538480 | 47 | NOK 64.8 m | 1998 |
| 15 | Rrb Betong AS | 821251192 | 45 | NOK 22.1 m | 2018 |
| 16 | Betong Karlsen AS | 915719589 | 39 | NOK 15.7 m | 2015 |
| 17 | Kaare Mortensen Buskerud AS | 993417270 | 38 | NOK 129 m | 2008 |
| 18 | Kaare Mortensen Oslo/Akershus AS | 990892229 | 37 | NOK 136.9 m | 2007 |
| 19 | Nord Industrier AS | 918830049 | 32 | NOK 0 | 2017 |
| 20 | Granitor Systems AS | 914238765 | 31 | NOK 129.1 m | 2014 |
| 21 | Five Elektro AS | 971227435 | 31 | NOK 64.4 m | 1994 |
| 22 | Murercompaniet AS | 912065332 | 29 | NOK 49.3 m | 2013 |
| 23 | Albanor Isolering AS | 923389075 | 29 | NOK 28.5 m | 2019 |
| 24 | El-Total AS | 994949969 | 26 | NOK 37.1 m | 2009 |
| 25 | Holthe Anlegg AS | 917176183 | 25 | NOK 54.4 m | 2016 |
Newest companies in specialised construction activities in Drammen
- Konera Bygg3 Nov 2026
- Risa Meyer Fram AS3 Nov 2026
- Elektro Installatøren AS Konkursbo26 Oct 2026
- Olsen Maskinentreprenør16 Oct 2026
- Ohmia Elektro AS9 Oct 2026
- Mocanu Industry30 Sept 2026
- Eduards Petrusis20 Sept 2026
- Daluci Via AS16 Sept 2026
- Borowski Tjenester14 Sept 2026
- Drammen Rørservice AS2 Sept 2026
Frequently asked questions
How many companies in specialised construction activities are there in Drammen?
The Register of Legal Entities lists 915 active companies in specialised construction activities in Drammen. 71 of them were registered in the last 12 months.
Which is the largest company in specialised construction activities in Drammen?
Granitor Electro AS is the largest by number of employees, with 489 employees. The organisation number is 897688182.
How many people work in specialised construction activities in Drammen?
The companies have 2,860 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 specialised construction activities in Drammen?
The oldest active company, AS Mjøndalen Installasjon, was founded in 1967. 49% of the companies are limited companies.
Explore further
Specialised construction activities in nearby municipalities
Sub-industries in Drammen
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. Figures are updated continuously.

