Owners, management and financials
CVR: 40840915
Previous names: Madsen & Kastberg 2 A/S
DKK 45,075,131
Gross profit
Net result: DKK 7,293,473
Madsen & Kastberg Gruppen A/S (90-99,99%), Emilie Sewerin Nicolaisen Holding ApS (10-14,99%)
CVR · view owners
Brian Kastberg Grün
Board: Anne Chabert (chair) and 4 members
CVR · view management
Active
Founded 3 October 2019
CVR · view overview
73 employees
CVR · 2026
Owner registered: Emilie Sewerin Nicolaisen Holding ApS
CVR · 23/12/2022
View the full event history
Madsen & Kastberg Byg A/S is a Danish company of the type Aktieselskab based in Brøndby, founded in 2019. The company is registered under the industry Murerarbejde. The company was previously named Madsen & Kastberg 2 A/S. The management consists of Brian Kastberg Grün. The board consists of Anne Chabert (chair), Brian Kastberg Grün, Emilie Sewerin Nicolaisen and Lars Erik Holmegaard. The company is owned by Madsen & Kastberg Gruppen A/S and Emilie Sewerin Nicolaisen Holding ApS. The company has 73 employees (2026). In 2025, the company reported a gross profit of DKK 45,075,131 and a net result of DKK 7,293,473 compared with DKK 6,234,973 the year before. Equity in the 2025 report amounted to DKK 14,011,507.
Source: annual report 2025, Danish Business Authority
The financial health of Madsen & Kastberg Byg A/S appears strong, with a notable upward trajectory in gross profit and profit margins over the past few years. Gross profit increased significantly from 8.47 million DKK in 2021 to 51.14 million DKK in 2024, while profit rose from 689,241 DKK to 6.23 million DKK in the same period. Equity has also improved substantially, reaching 14.01 million DKK in 2025, indicating a solid foundation for future growth. However, the lack of disclosed revenue figures raises concerns about transparency and overall market position within the construction industry.
AI-generated summary · Generated 15/08/2026
Use this number when you send an electronic invoice to Madsen & Kastberg Byg A/S.
Source: Peppol Directory, updated daily.
Selskabets formål er drive murerforretning og dermed beslægtet virksomhed.
Source: annual reports filed with the Danish Business Authority.
| Period | Gross Profit | Profit/Loss | Total Assets | Equity | Employees | Report |
|---|---|---|---|---|---|---|
| 202501/01/2025 – 31/12/2025 | 45.1 mio. | 7.3 mio. | 34.1 mio. | 14 mio. | 62 | |
| 202401/01/2024 – 31/12/2024 | 51.1 mio. | 6.2 mio. | 30.8 mio. | 8.2 mio. | 73 | |
| 202301/01/2023 – 31/12/2023 | 32.7 mio. | 632 t. | 32.3 mio. | 2 mio. | 53 | |
| 202201/01/2022 – 31/12/2022 | 21.3 mio. | 1.6 mio. | 14.4 mio. | 2.4 mio. | 34 | |
| 202101/01/2021 – 31/12/2021 | 8.5 mio. | 689 t. | 6.1 mio. | 1.1 mio. | 13 |
Compared to 2.022 companies in Murerarbejde
Comparison is based on industry median values
Screen owners and management against the Danish FSA's official PEP lists
1 public tender won
Sources: TED (the EU tender database) and udbud.dk
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Try the lead list generatorThe CVR number of Madsen & Kastberg Byg A/S is 40840915.
Madsen & Kastberg Byg A/S is owned by Madsen & Kastberg Gruppen A/S and Emilie Sewerin Nicolaisen Holding ApS.
The management of Madsen & Kastberg Byg A/S consists of Brian Kastberg Grün.
The board of Madsen & Kastberg Byg A/S consists of Anne Chabert, Brian Kastberg Grün and Emilie Sewerin Nicolaisen, with Anne Chabert as chair.
In 2025, Madsen & Kastberg Byg A/S reported a gross profit of DKK 45,075,131.
Madsen & Kastberg Byg A/S had 73 employees in 2026 according to the Danish CVR register.
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Madsen & Kastberg Byg A/S has published its annual report for 2025. Gross profit came to DKK 45,075,131, and the net result was DKK 7,293,473.
Contact info changed: new phone: 70707170, new email: [email protected], new website: www.m-k.dk (March 17, 2026).
As of March 16, 2026, Stig Weberg-Petersen has left the board of directors of Madsen & Kastberg Byg A/S.
Madsen & Kastberg Byg A/S has published its annual report for 2024. Gross profit came to DKK 51,144,449, and the net result was DKK 6,234,973.
Madsen & Kastberg Byg A/S has won the tender "Udbud af håndværkerydelser til Rudersdal Kommune" issued by Rudersdal Kommune worth 122,000,000 DKK.
As of May 27, 2024, Stig Weberg-Petersen has joined the board of directors of Madsen & Kastberg Byg A/S.
As of May 27, 2024, Lars Erik Holmegaard has joined the board of directors of Madsen & Kastberg Byg A/S.
Madsen & Kastberg Byg A/S has published its annual report for 2023. Gross profit came to DKK 32,681,089, and the net result was DKK 632,074.
As of February 26, 2024, Jesper Gemmer has left the board of directors of Madsen & Kastberg Byg A/S.
Madsen & Kastberg Byg A/S has published its annual report for 2022. Gross profit came to DKK 21,335,454, and the net result was DKK 1,566,194.
As of December 23, 2022, Emilie Sewerin Nicolaisen Holding ApS is registered as an owner of Madsen & Kastberg Byg A/S with an ownership share of 10%.
As of November 15, 2022, Emilie Sewerin Nicolaisen has joined the board of directors of Madsen & Kastberg Byg A/S.
As of April 5, 2022, Jesper Gemmer has joined the board of directors of Madsen & Kastberg Byg A/S.
As of April 5, 2022, Arne Becker Rousing has left the board of directors of Madsen & Kastberg Byg A/S.
Madsen & Kastberg Byg A/S has published its annual report for 2021. Gross profit came to DKK 8,466,953, and the net result was DKK 689,241.
As of February 9, 2022, Anne Chabert has joined the board of directors of Madsen & Kastberg Byg A/S.
As of February 9, 2022, Arne Becker Rousing has joined the board of directors of Madsen & Kastberg Byg A/S.
As of February 8, 2022, Anne Chabert has left the board of directors of Madsen & Kastberg Byg A/S.
As of February 8, 2022, Arne Becker Rousing has left the board of directors of Madsen & Kastberg Byg A/S.
Madsen & Kastberg Byg A/S has published its interim report for the period October 3, 2019 – December 31, 2020.
As of June 29, 2020, Anne Chabert has joined the board of directors of Madsen & Kastberg Byg A/S.
As of June 29, 2020, Arne Becker Rousing has joined the board of directors of Madsen & Kastberg Byg A/S.
As of June 29, 2020, Rasmus Boiden Madsen has joined the board of directors of Madsen & Kastberg Byg A/S.
As of June 29, 2020, Thomas Leth Madsen has left the board of directors of Madsen & Kastberg Byg A/S.
On June 29, 2020, the company changed its name from Madsen & Kastberg 2 A/S to Madsen & Kastberg Byg A/S.
As of June 28, 2020, Rasmus Boiden Madsen has left the board of directors of Madsen & Kastberg Byg A/S.
As of October 3, 2019, Beierholm Godkendt Revisionspartnerselskab has been appointed auditor of Madsen & Kastberg Byg A/S.
As of October 3, 2019, Brian Kastberg Grün has joined the board of directors of Madsen & Kastberg Byg A/S.
As of October 3, 2019, Rasmus Boiden Madsen has joined the board of directors of Madsen & Kastberg Byg A/S.
As of October 3, 2019, Thomas Leth Madsen has joined the board of directors of Madsen & Kastberg Byg A/S.
As of October 3, 2019, Brian Kastberg Grün is registered as adm. dir. of Madsen & Kastberg Byg A/S.
As of October 3, 2019, Madsen & Kastberg Gruppen A/S is registered as an owner of Madsen & Kastberg Byg A/S with an ownership share of 90%.
Madsen & Kastberg Byg A/S was founded on October 3, 2019.
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