Madsen & Kastberg Byg A/S
Public limited companyCVR 40840915BrøndbyActive
Madsen & Kastberg Byg A/S is a public limited company, based in Brøndby, active in bricklaying, founded in 2019. Net profit rose 17% from 2024 to 2025, ending at DKK 7.3m. Measured by gross profit, it ranks no. 9 of 1,154 companies in the industry in the database. Profit has grown three years in a row.
Key figures · financial year 2025
What has changed
calculated from recorded figures and datesFinancials: 2025 against 2024
- Gross profit fell 12% (2024 → 2025), to DKK 45.1m.
- Net profit rose 17% (2024 → 2025), to DKK 7.3m.
- Equity rose 70% (2024 → 2025), to DKK 14m.
Employees
- 2 fewer employees than a year earlier: 73 (07/2026) against 75 (07/2025).
Management and owners, last 24 months
- Stepped down: Stig Weberg-Petersen (board member, 16/03/2026).
Registrations, last 24 months
- 16/06/2025: Share capital changed from 400,000 DKK to 401,000 DKK
- 01/01/2025: Industry changed to Bricklaying (439100)
- 23/11/2024: Moved to Vallensbækvej 41, 2605 Brøndby
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 thousandEquity and net profit
| 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | Change | |
|---|---|---|---|---|---|---|---|
| Revenue | not stated | not stated | not stated | not stated | not stated | not stated | – |
| Gross profit | 4,574 | 8,467 | 21,335 | 32,681 | 51,144 | 45,075 | −11.9% |
| Operating profit (EBIT) | – | 1,008 | 2,228 | 1,141 | 8,275 | 9,329 | +12.7% |
| Profit before tax | 450 | 885 | 2,021 | 812 | 8,003 | 9,191 | +14.8% |
| Net profit | 346 | 689 | 1,566 | 632 | 6,235 | 7,293 | +17% |
| Total assets | 3,579 | 6,134 | 14,388 | 32,338 | 30,836 | 34,090 | +10.6% |
| Equity | 746 | 1,135 | 2,351 | 1,983 | 8,218 | 14,012 | +70.5% |
| Liabilities | 2,728 | 4,699 | 11,281 | 29,364 | 19,824 | 14,328 | −27.7% |
| Cash and cash equivalents | 684 | 706 | 476 | 20 | 1,421 | 9,618 | +577% |
| Average number of employees | 5 | 13 | 34 | 53 | 73 | 62 | −15.1% |
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
Signals from the financial statements
calculated from the 2025 figuresProfit 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| Financial year | Period | Published | Figures for | Documents |
|---|---|---|---|---|
| 2025 | 01/01/2025 – 31/12/2025 | 19/03/2026 | The company | PDF not statedXBRL |
| 2024 | 01/01/2024 – 31/12/2024 | 10/03/2025 | The company | PDFXBRL |
| 2023 | 01/01/2023 – 31/12/2023 | 29/02/2024 | The company | PDFXBRL |
| 2022 | 01/01/2022 – 31/12/2022 | 27/02/2023 | The company | PDFXBRL |
| 2021 | 01/01/2021 – 31/12/2021 | 10/02/2022 | The company | PDFXBRL |
| 2020 | 03/10/2019 – 31/12/2020 | 09/02/2021 | The company | PDFXBRL |
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 CVRPosition in the industry
1,156 companies in the databaseComparison with the other companies in bricklaying based on the latest financial year.
Industry median: gross profit DKK 2m, net profit DKK 133k, equity DKK 600k, 4 employees.
Compared with similar companies
size, age and company form| Group | Gross profit | Equity |
|---|---|---|
| Companies with 50–199 employees4,467 companies in the comparison | No. 2,011of 4,412 Better than 54% | No. 2,570of 4,466 Better than 42% |
| Same industry and 50–199 employees27 companies in the comparison | No. 7of 27 Better than 77% | No. 12of 27 Better than 58% |
| Companies that are between 5 and 14 years old33,688 companies in the comparison | No. 787of 33,588 Better than 98% | No. 2,966of 33,687 Better than 91% |
| All companies of type A/S18,025 companies in the comparison | No. 3,190of 17,786 Better than 82% | No. 7,460of 18,024 Better than 59% |
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
Bricklaying- Madsen & Kastberg Byg A/SDKK 45.1m
- HMC Byg & Anlæg A/SDKK 146.1m
- Renovo ApSDKK 101.3m
- Madsen & Kastberg Byg A/SDKK 7.3m
- HMC Byg & Anlæg A/SDKK 6.9m
- Renovo ApSDKK 5.9m
- Madsen & Kastberg Byg A/SDKK 14m
- HMC Byg & Anlæg A/SDKK 39.5m
- Renovo ApSDKK 24.6m
- Madsen & Kastberg Byg A/S73
- HMC Byg & Anlæg A/S250
- Renovo ApS159
Latest financial year per company. Choose up to three companies from the largest in the industry.
Owners and group
from the Public Ownership Register- Madsen & Kastberg Gruppen A/S90% · 100% votes
- Emilie Sewerin Nicolaisen Holding ApS10% · 0% votes
Management
6 active registrationsExecutive management
| Name | Role | Appointed |
|---|---|---|
| Brian Kastberg Grün | CEO | 03/10/2019 |
Board of directors
| Name | Role | Appointed |
|---|---|---|
| Brian Kastberg Grün | Board member | 03/10/2019 |
| Rasmus Boiden Madsen | Board member | 29/06/2020 |
| Anne Chabert | Chair of the board | 09/02/2022 |
| Emilie Sewerin Nicolaisen | Board member | 15/11/2022 |
| Lars Erik Holmegaard | Board member | 27/05/2024 |
- Founders
- Madsen & Kastberg Gruppen A/S
Former management (7)
| Name | Role | Appointed | Resigned |
|---|---|---|---|
| Rasmus Boiden Madsen | Chair of the board | 03/10/2019 | 28/06/2020 |
| Thomas Leth Madsen | Board member | 03/10/2019 | 29/06/2020 |
| Anne Chabert | Board member | 29/06/2020 | 08/02/2022 |
| Arne Becker Rousing | Chair of the board | 29/06/2020 | 08/02/2022 |
| Arne Becker Rousing | Board member | 09/02/2022 | 05/04/2022 |
| Jesper Gemmer | Board member | 05/04/2022 | 26/02/2024 |
| Stig Weberg-Petersen | Board member | 27/05/2024 | 16/03/2026 |
Signing rule: Selskabet tegnes af Brian Kastberg Grün, Rasmus Boiden Madsen eller af alle bestyrelsesmedlemmerne i forening
Address and production units
1 active production unitsVallensbækvej 41
2605 Brøndby
Brøndby Municipality · Postcode 2605
Other companies at the address (1)
- Madsen & Kastberg VVS A/SPlumbing, heat and air-conditioning installation
| Production unit | Address | Employees | P number |
|---|---|---|---|
| Madsen & Kastberg Byg A/S | Vallensbækvej 41, 2605 Brøndby | 77 | 1025106160 |
Purpose
Selskabets formål er drive murerforretning og dermed beslægtet virksomhed.
The purpose is quoted from the register in Danish.
Changes year by year
37 registered events20262 changesaccounts 1 · management 1
- AccountsAnnual report for 2025 published
- ManagementStig Weberg-Petersen stepped down as board member
20253 changescapital 1 · accounts 1 · industry 1
- CapitalShare capital changed from 400,000 DKK to 401,000 DKK
- AccountsAnnual report for 2024 published
- IndustryIndustry changed to Bricklaying (439100)
20245 changesaddress 1 · management 3 · accounts 1
- AddressMoved to Vallensbækvej 41, 2605 Brøndby
- ManagementLars Erik Holmegaard appointed board member
- ManagementStig Weberg-Petersen appointed board member
- AccountsAnnual report for 2023 published
- ManagementJesper Gemmer stepped down as board member
20231 changeaccounts 1
- AccountsAnnual report for 2022 published
202210 changesownership 1 · address 1 · management 7 · accounts 1
- OwnershipEmilie Sewerin Nicolaisen Holding ApS registered as owner (10%)
- AddressMoved to Valhøjs Alle 152, 2610 Rødovre
- ManagementEmilie Sewerin Nicolaisen appointed board member
- ManagementJesper Gemmer appointed board member
- ManagementArne Becker Rousing stepped down as board member
- AccountsAnnual report for 2021 published
- ManagementArne Becker Rousing appointed board member
- ManagementAnne Chabert appointed chair of the board
- ManagementAnne Chabert stepped down as board member
- ManagementArne Becker Rousing stepped down as chair of the board
20211 changeaccounts 1
- AccountsAnnual report for 2020 published
20208 changesaddress 2 · name 1 · management 5
- AddressMoved to Valhøjs Alle 152, 2610 Rødovre
- NameName changed from Madsen & Kastberg 2 A/S to Madsen & Kastberg Byg A/S
- ManagementAnne Chabert appointed board member
- ManagementRasmus Boiden Madsen appointed board member
- ManagementArne Becker Rousing appointed chair of the board
- ManagementThomas Leth Madsen stepped down as board member
- ManagementRasmus Boiden Madsen stepped down as chair of the board
- AddressMoved to Valhøjs Alle 154, 2610 Rødovre
20197 changesaddress 1 · founded 1 · management 4 · ownership 1
- AddressMoved to Smedekærvej 33, 2770 Kastrup
- FoundedRegistered as Madsen & Kastberg 2 A/S
- ManagementThomas Leth Madsen appointed board member
- ManagementRasmus Boiden Madsen appointed chair of the board
- ManagementBrian Kastberg Grün appointed ceo
- ManagementBrian Kastberg Grün appointed board member
- OwnershipMadsen & Kastberg Gruppen A/S registered as owner (90%)
Related companies
Same industry in Brøndby
- Murermester P Jørgensen & Søn A/S16 employees
- Murerfirmaet NOACON ApS8 employees
- Vesterborg ApS7 employees
- Konius ApS2 employees
Same people in management
- NCC Danmark A/Svia Arne Becker Rousing
- NETS Denmark A/Svia Anne Chabert
- Sif Gruppen A/Svia Lars Erik Holmegaard
- Enemærke & Petersen A/Svia Arne Becker Rousing
- Ltech A/Svia Lars Erik Holmegaard
- Andersen & Heegaard EL A/Svia Brian Kastberg Grün
Largest in the industry
- HMC Byg & Anlæg A/SDKK 146.1m
- Renovo ApSDKK 101.3m
- Øens Murerfirma A/SDKK 92.2m
- Murermester J. Ole Pedersen A/SDKK 82.6m
- Murerfirmaet Axel Poulsen A/SDKK 73.4m
- CH Byg A/SDKK 47.7m
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.