Industry code 43 · Buskerud
Specialised construction activities in Ringerike
There are 338 active companies in specialised construction activities in Ringerike. 24 of them were registered in the last 12 months. Together they have 430 registered employees. The largest company is Brødr Helgesens Eftf AS with 39 employees. The oldest, Brødrene Maribo ANS, was founded in 1972. 41% are limited companies.
- Active companies
- 338
- New in the last 12 months
- 24
- Registered employees
- 430
- Share of limited companies
- 41 %
The largest companies in specialised construction activities in Ringerike
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 | Brødr Helgesens Eftf AS | 935900557 | 39 | NOK 60.3 m | 1984 |
| 2 | Engebretsen Ingeniør - Entreprenør AS | 989182943 | 32 | NOK 43.4 m | 2005 |
| 3 | Mt Klima AS | 820739582 | 27 | NOK 110.5 m | 2018 |
| 4 | Fossum AS | 960168194 | 22 | NOK 34.5 m | 1991 |
| 5 | Varme & Sanitær AS | 981696247 | 22 | NOK 46.7 m | 2000 |
| 6 | Leif Ivar Malerservice AS | 821480922 | 17 | NOK 19.5 m | 2018 |
| 7 | F. Bache AS | 925383112 | 17 | NOK 26.7 m | 2020 |
| 8 | Hønefoss Vvs AS | 923789553 | 16 | NOK 25.9 m | 2019 |
| 9 | Askel Installasjon AS | 888754822 | 15 | NOK 29.6 m | 2005 |
| 10 | Senneseth Betong & Anlegg AS | 915614574 | 14 | NOK 41.6 m | 2015 |
| 11 | Aktiv Rørteknikk AS | 933370631 | 14 | NOK 21.7 m | 2024 |
| 12 | Venåsen Rørservice AS | 952163353 | 14 | NOK 21.8 m | 1989 |
| 13 | West Wermland Montasje AS | 911897679 | 12 | NOK 9.5 m | 2013 |
| 14 | Hønefoss Rørleggerbedrift AS | 950349875 | 12 | NOK 26 m | 1988 |
| 15 | Ringerud Drift AS | 966348437 | 11 | NOK 2.9 m | 1992 |
| 16 | Malerfirma Gammelseter & Rikardsen AS | 836327292 | 10 | NOK 9.4 m | 2025 |
| 17 | An Gravedrift AS | 912121216 | 9 | NOK 22.2 m | 2013 |
| 18 | Murmester Goa AS | 920380840 | 9 | NOK 8.4 m | 2018 |
| 19 | Port Øst AS | 920455441 | 9 | NOK 36 m | 2018 |
| 20 | Av & På Elektro AS | 976969324 | 9 | NOK 17.3 m | 1996 |
| 21 | Kindberg & Kristiansen Elektriske AS | 989974173 | 9 | NOK 7 m | 2006 |
| 22 | Jarles Anleggstjenester AS | 912174077 | 8 | NOK 6.7 m | 2013 |
| 23 | R.s Anlegg AS | 932942518 | 8 | NOK 10.7 m | 2024 |
| 24 | Viken Garasjeporter/ Jan Fossum | 927478978 | 7 | – | – |
| 25 | Oddvar Thoen AS | 975891895 | 7 | NOK 6.7 m | 1995 |
Newest companies in specialised construction activities in Ringerike
- Kawiak-Gasior Penthouse28 Sept 2026
- Ådalen Elektriske AS16 Sept 2026
- Rh Vvs AS1 Sept 2026
- Fargeverket Malerservice - Mustafa18 Aug 2026
- Rørleggermester Kelmendi13 Aug 2026
- Astro Ventilasjon AS13 Aug 2026
- Anders Johnsrud Maskin Og Transport14 Jul 2026
- Arab Rørservice18 Jun 2026
- Mone Bygg Og Maling4 Jun 2026
- Jørstads Maleservice1 Jun 2026
Frequently asked questions
How many companies in specialised construction activities are there in Ringerike?
The Register of Legal Entities lists 338 active companies in specialised construction activities in Ringerike. 24 of them were registered in the last 12 months.
Which is the largest company in specialised construction activities in Ringerike?
Brødr Helgesens Eftf AS is the largest by number of employees, with 39 employees. The organisation number is 935900557.
How many people work in specialised construction activities in Ringerike?
The companies have 430 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 Ringerike?
The oldest active company, Brødrene Maribo ANS, was founded in 1972. 41% of the companies are limited companies.
Explore further
Specialised construction activities in nearby municipalities
Sub-industries in Ringerike
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.