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Karlsen Byg A/S

Public limited companyCVR 31366208ØstervråActive

Karlsen Byg A/S is a public limited company, based in Østervrå, active in joinery installation, founded in 2008. Net profit rose 38% from 2024 to 2025, ending at DKK 390k.

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Key figures · financial year 2025

Gross profitDKK 2.8m+27.2% vs. 2024
Net profitDKK 390k+37.8% vs. 2024
EquityDKK 1.4m+6.9% vs. 2024
Employees8latest month from CVR

What has changed

calculated from recorded figures and dates

Financials: 2025 against 2024

  • Gross profit rose 27% (2024 → 2025), to DKK 2.8m.
  • Net profit rose 38% (2024 → 2025), to DKK 390k.
  • Equity rose 7% (2024 → 2025), to DKK 1.4m.

Employees

  • 1 more employees than a year earlier: 8 (08/2026) against 7 (08/2025).

Registrations, last 24 months

  • 01/01/2025: Industry changed to Joinery installation (433200)

Calculated from the latest two annual reports in sequence and from registrations in CVR. A figure that is missing in either year gives no line, and we derive no figures.

Financial statements

Financial years 2020–2025 · amounts in DKK thousand

Equity and net profit

DKK 0DKK 200kDKK 400kDKK 600kDKK 800kDKK 1mDKK 1.2mDKK 1.4m202020212022202320242025
EquityNet profit
Financial figures for Karlsen Byg A/S
202020212022202320242025Change
Revenuenot statednot statednot statednot statednot statednot stated–
Gross profit1,2391,7131,6642,0892,2372,847+27.2%
Operating profit (EBIT)253442284415364509+39.9%
Profit before tax241428274407364508+39.9%
Net profit187334213316283390+37.8%
Total assets2,4862,3671,8862,1022,4382,807+15.1%
Equity1,1941,3281,1901,3071,2891,379+6.9%
Liabilities1,2801,0256927891,1431,338+17%
Cash and cash equivalents1,7981,4416424745910−100%
Average number of employees245556+20%

Source: annual reports filed with the Danish Business Authority (XBRL). Figures for the company (not the group); change is the latest year against the year before. “–” means the figure is not stated in the annual report. Revenue is not stated for 2020, 2021, 2022, 2023, 2024, 2025: smaller companies may omit it, and we do not derive it from other figures.

Download the figures as CSV · free with an account, amounts in whole DKK

DKK 0DKK 500kDKK 1mDKK 1.5mDKK 2mDKK 2.5mDKK 3m202020212022202320242025
Gross profitMedian, the industry (3,429 companies)

Signals from the financial statements

calculated from the 2025 figures

  • Profit for five years in a row

    Net result has been positive in 2021–2025.

    How is this calculated?

    Net result is positive in the five latest annual reports in a row.

The signals are rules applied to the figures in the annual reports. They are not an assessment or credit rating of the company. See Data and method.

Annual reports

6 financial years
Annual reports for Karlsen Byg A/S
Financial yearPeriodPublishedFigures forDocuments
202501/10/2024 – 30/09/202518/12/2025The companyPDF not statedXBRL
202401/10/2023 – 30/09/202419/12/2024The companyPDFXBRL
202301/10/2022 – 30/09/202319/12/2023The companyPDFXBRL
202201/10/2021 – 30/09/202208/12/2022The companyPDFXBRL
202101/10/2020 – 30/09/202112/12/2021The companyPDFXBRL
202001/10/2019 – 30/09/202022/12/2020The companyPDFXBRL

The figures from all the annual reports are shown on this page. The documents themselves (PDF and XBRL, the machine-readable edition) are downloaded with a Pro account: sign in or create a free account, and then choose Pro. XBRL is the edition the figures on the page are read from.

Employees

monthly figures from CVR
0246809/2310/2311/2312/2301/2402/2403/2404/2405/2406/2407/2408/2409/2410/2411/2412/2401/2502/2503/2504/2505/2506/2507/2508/2509/2510/2511/2512/2501/2602/2603/2604/2605/2606/2607/2608/26
Employees

Position in the industry

3,429 companies in the database

Comparison with the other companies in joinery installation based on the latest financial year.

Gross profitDKK 2.8mNo. 1333 of 3,428
Better than 61% of the companies in the industry
EquityDKK 1.4mNo. 1091 of 3,429
Better than 68% of the companies in the industry
Number of employees8No. 1070 of 3,429
Better than 69% of the companies in the industry

Industry median: gross profit DKK 2m, net profit DKK 133k, equity DKK 623k, 4 employees.

DKK 100kDKK 780kDKK 6.1mDKK 47.5mDKK 186.9mHere
Distribution of gross profit for 3,347 companies in the industry (latest financial year, logarithmic scale). Amber bar: where this company sits.

Compared with similar companies

size, age and company form
Rank among similar companies
GroupGross profitEquity
Companies with fewer than 20 employees69,967 companies in the comparison
No. 23,709of 69,742
Better than 66%
No. 29,336of 69,964
Better than 58%
Same industry and fewer than 20 employees3,046 companies in the comparison
No. 957of 3,045
Better than 69%
No. 765of 3,046
Better than 75%
Companies that are between 15 and 29 years old24,910 companies in the comparison
No. 13,362of 24,791
Better than 46%
No. 16,549of 24,909
Better than 34%
All companies of type A/S18,025 companies in the comparison
No. 13,799of 17,786
Better than 22%
No. 15,389of 18,024
Better than 15%

The rank is calculated among companies in the database with a figure for the latest financial year, and is shown only for groups of at least ten companies.

Compare with the industry

Joinery installation
Gross profit
  1. Karlsen Byg A/SDKK 2.8m
  2. Egil Rasmussen A/SDKK 370.7m
  3. Jakon A/SDKK 197.1m
Net profit
  1. Karlsen Byg A/SDKK 390k
  2. Egil Rasmussen A/SDKK 65.4m
  3. Jakon A/SDKK 66.1m
Equity
  1. Karlsen Byg A/SDKK 1.4m
  2. Egil Rasmussen A/SDKK 212.5m
  3. Jakon A/SDKK 205.4m
Employees
  1. Karlsen Byg A/S8
  2. Egil Rasmussen A/S523
  3. Jakon A/S446

Latest financial year per company. Choose up to three companies from the largest in the industry.

Owners and group

from the Public Ownership Register
Owners
  • RGK Holding ApS100%
Karlsen Byg A/S

Management

4 active registrations

Executive management

Executive management at Karlsen Byg A/S
NameRoleAppointed
René Gjelstrup KarlsenDirector04/04/2008

Board of directors

Board of directors at Karlsen Byg A/S
NameRoleAppointed
Thorkild Gjelstrup KarlsenChair of the board04/04/2008
René Gjelstrup KarlsenBoard member04/04/2008
Sandra Engelbrecht Kiel KarlsenBoard member27/10/2022
Founders
René Gjelstrup Karlsen
Former management (1)
Former management at Karlsen Byg A/S
NameRoleAppointedResigned
Tove Margrethe KarlsenBoard member04/04/200821/06/2022

Signing rule: Selskabet tegnes af en direktør alene eller af den samlede bestyrelse.

Address and production units

1 active production units

Brøndenvej 41C
9750 Østervrå

Frederikshavn Municipality · Postcode 9750

Production units
Production unitAddressEmployeesP number
KARLSEN BYG A/SBrøndenvej 41C, 9750 Østervrå81014337691

Purpose

Selskabets formål er entreprenør-, håndværks- og byggerivirksomhed og investering samt anden dermed efter bestyrelsens skøn beslægtet virksomhed.

The purpose is quoted from the register in Danish.

Changes year by year

18 registered events
20252 changesaccounts 1 · industry 1
  • Annual report for 2025 published
  • Industry changed to Joinery installation (433200)
20241 changeaccounts 1
  • Annual report for 2024 published
20231 changeaccounts 1
  • Annual report for 2023 published
20223 changesaccounts 1 · management 2
  • Annual report for 2022 published
  • Sandra Engelbrecht Kiel Karlsen appointed board member
  • Tove Margrethe Karlsen stepped down as board member
20211 changeaccounts 1
  • Annual report for 2021 published
20201 changeaccounts 1
  • Annual report for 2020 published
20181 changeaddress 1
  • Moved to Brøndenvej 41C, 9750 Østervrå
20172 changesownership 2
  • RGK Holding ApS registered as owner (100%)
  • René Gjelstrup Karlsen is no longer registered as owner
20086 changesfounded 1 · management 4 · ownership 1
  • Registered as KARLSEN BYG A/S
  • Tove Margrethe Karlsen appointed board member
  • Thorkild Gjelstrup Karlsen appointed chair of the board
  • René Gjelstrup Karlsen appointed board member
  • René Gjelstrup Karlsen appointed director
  • René Gjelstrup Karlsen registered as owner (100%)

Related companies

Same industry in Frederikshavn

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Largest in the industry

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Source and updates

The information comes from the Danish Central Business Register (Danish Business Authority) and from annual reports filed with the Danish Business Authority. Last synchronised 24/10/2026. The company is protected against advertising; contact details are not shown, and the data must not be used for marketing.

View in CVRReport a correction