Mah Byg ApS
Private limited companyCVR 44232359BirkerødActive
Mah Byg ApS is a private limited company, based in Birkerød, active in joinery installation, founded in 2023. Equity was negative at the end of 2025 (−DKK 250k). The company made a loss in both 2024 and 2025, most recently DKK 41,007.
Key figures · financial year 2025
What has changed
calculated from recorded figures and datesFinancials: 2025 against 2024
- Gross profit fell 101% (2024 → 2025), to −DKK 11,217.
- The loss got smaller: from DKK 249k to DKK 41,007 (2024 → 2025).
Management and owners, last 24 months
- New owners registered: Maxi Holding ApS (16/04/2026).
- No longer registered as owner: Maxi Holding ApS (15/04/2026), STG Invest 2019 ApS (26/06/2025) and Boet efter Per-Henning Hermann Wiesinger (16/04/2026).
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 2024–2025 · amounts in DKK thousandEquity and net profit
| 2024 | 2025 | Change | |
|---|---|---|---|
| Revenue | not stated | not stated | – |
| Gross profit | 1,285 | −11 | −100.9% |
| Operating profit (EBIT) | −236 | −19 | +92% |
| Profit before tax | −249 | −41 | +83.5% |
| Net profit | −249 | −41 | +83.5% |
| Total assets | 76 | 3 | −96% |
| Equity | −209 | −250 | −19.6% |
| Liabilities | 285 | 253 | −11.2% |
| Cash and cash equivalents | 5 | 0 | −100% |
| Average number of employees | 6 | 0 | −100% |
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 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 figuresNegative equity
Equity was −DKK 250k at the end of 2025.
How is this calculated?
Equity in the latest annual report is below zero.
Loss for 2 years in a row
Net result has been negative in 2024–2025.
How is this calculated?
Net result is negative in the two or more 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
2 financial years| Financial year | Period | Published | Figures for | Documents |
|---|---|---|---|---|
| 2025 | 01/01/2025 – 31/12/2025 | 08/07/2026 | The company | PDF not statedXBRL |
| 2024 | 10/08/2023 – 31/12/2024 | 11/07/2025 | 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
3,429 companies in the databaseComparison with the other companies in joinery installation based on the latest financial year.
Industry median: gross profit DKK 2m, net profit DKK 133k, equity DKK 623k, 4 employees.
Compared with similar companies
size, age and company form| Group | Gross profit | Equity |
|---|---|---|
| Companies with fewer than 20 employees69,967 companies in the comparison | No. 63,644of 69,742 Better than 9% | No. 64,149of 69,964 Better than 8% |
| Same industry and fewer than 20 employees3,046 companies in the comparison | No. 2,991of 3,045 Better than 2% | No. 2,888of 3,046 Better than 5% |
| Companies that are founded within the last five years16,662 companies in the comparison | No. 15,227of 16,614 Better than 8% | No. 14,756of 16,661 Better than 11% |
| All companies of type ApS66,508 companies in the comparison | No. 61,181of 66,379 Better than 8% | No. 60,545of 66,505 Better than 9% |
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- Mah Byg ApS−DKK 11,217
- Egil Rasmussen A/SDKK 370.7m
- Jakon A/SDKK 197.1m
- Mah Byg ApS−DKK 41,007
- Egil Rasmussen A/SDKK 65.4m
- Jakon A/SDKK 66.1m
- Mah Byg ApS−DKK 250k
- Egil Rasmussen A/SDKK 212.5m
- Jakon A/SDKK 205.4m
- Mah Byg ApS6
- Egil Rasmussen A/S523
- 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- Acerd Invest Holding ApS33.33%
- Maxi Holding ApS50%
Management
2 active registrationsExecutive management
| Name | Role | Appointed |
|---|---|---|
| Mik Rupert Kerchlango | CEO | 20/12/2023 |
| Andreas Carl Emil Rostgaard Düring | Director | 20/12/2023 |
- Founders
- Maxi Holding ApS, Acerd Invest Holding ApS, STG Invest 2019 ApS
Former management (1)
| Name | Role | Appointed | Resigned |
|---|---|---|---|
| Per-Henning Hermann Wiesinger | Director | 10/08/2023 | 12/12/2023 |
Signing rule: Selskabet tegnes af en direktør.
Address and production units
1 active production unitsToftebakken 15
3460 Birkerød
Rudersdal Municipality · Postcode 3460
Other companies at the address (1)
- Maxi ApSTemporary employment agency activities and other staff provision
| Production unit | Address | Employees | P number |
|---|---|---|---|
| MAH BYG ApS | Toftebakken 15, 3460 Birkerød | 6 | 1029544944 |
Purpose
Selskabets formål er at drive virksomhed med tømrer-, maler- og murerarbejde og dermed beslægtet virksomhed
The purpose is quoted from the register in Danish.
Changes year by year
20 registered events20264 changesaccounts 1 · ownership 3
- AccountsAnnual report for 2025 published
- OwnershipMaxi Holding ApS registered as owner (50%)
- OwnershipBoet efter Per-Henning Hermann Wiesinger is no longer registered as owner
- OwnershipMaxi Holding ApS is no longer registered as owner
20253 changesaccounts 1 · ownership 1 · industry 1
- AccountsAnnual report for 2024 published
- OwnershipSTG Invest 2019 ApS is no longer registered as owner
- IndustryIndustry changed to Joinery installation (433200)
20242 changesstatus 1 · address 1
- StatusStatus changed to active
- AddressMoved to Toftebakken 15, 3460 Birkerød
202311 changesmanagement 4 · status 1 · address 1 · ownership 4 · founded 1
- ManagementMik Rupert Kerchlango appointed ceo
- ManagementAndreas Carl Emil Rostgaard Düring appointed director
- StatusStatus changed to under compulsory dissolution
- ManagementPer-Henning Hermann Wiesinger stepped down as director
- AddressMoved to Langelinie Allé 17, 2100 København Ø
- OwnershipBoet efter Per-Henning Hermann Wiesinger registered as owner (33.33%)
- FoundedRegistered as MAH BYG ApS
- ManagementPer-Henning Hermann Wiesinger appointed director
- OwnershipMaxi Holding ApS registered as owner (33.33%)
- OwnershipSTG Invest 2019 ApS registered as owner (33.33%)
- OwnershipAcerd Invest Holding ApS registered as owner (33.33%)
Related companies
Same industry in Rudersdal
- Danielsen Byg ApS22 employees
- Scandic Building Services ApS15 employees
- HVID Entreprise A/S15 employees
- CV ByggeEntreprise ApS12 employees
- Darringe ApS9 employees
- Plahn & Trier Tømrerfirma ApS7 employees
Same people in management
- Raaschou Byg ApSvia Andreas Carl Emil Rostgaard Düring
- People's Group A/Svia Per-Henning Hermann Wiesinger
- Maxi ApSvia Mik Rupert Kerchlango
- Snedker- Tømrerfirmaet Hagedorn A/Svia Andreas Carl Emil Rostgaard Düring
Largest in the industry
- Egil Rasmussen A/SDKK 370.7m
- Jakon A/SDKK 197.1m
- Snedkermester Arne Pedersen A/SDKK 144.5m
- Deko P/SDKK 126.2m
- Bytømreren Service A/SDKK 99.2m
- Bgb A/SDKK 77m
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.