Sejr Klimateknik ApS
Private limited companyCVR 40482857HolbækActive
Sejr Klimateknik ApS is a private limited company, based in Holbæk, active in plumbing, heat and air-conditioning installation, founded in 2019. Net profit rose 17% from 2024 to 2025, ending at DKK 549k. Profit has grown three years in a row. Equity grew to DKK 1.2m in 2025.
Key figures · financial year 2025
What has changed
calculated from recorded figures and datesFinancials: 2025 against 2024
- Gross profit rose 11% (2024 → 2025), to DKK 3.6m.
- Net profit rose 17% (2024 → 2025), to DKK 549k.
- Equity rose 54% (2024 → 2025), to DKK 1.2m.
Employees
- 1 more employees than a year earlier: 6 (07/2026) against 5 (07/2025).
Registrations, last 24 months
- 11/11/2025: Moved to Ahlgade 61, 1, 4300 Holbæk
- 01/11/2025: Industry changed to Plumbing, heat and air-conditioning installation (432200)
- 01/01/2025: Industry changed to Manufacture of non-domestic cooling and ventilation equipment (282500)
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 | 2,327 | 2,211 | 1,786 | 2,000 | 3,211 | 3,564 | +11% |
| Operating profit (EBIT) | – | – | −32 | 222 | 620 | 688 | +11% |
| Profit before tax | 140 | 426 | −40 | 216 | 606 | 703 | +16% |
| Net profit | 107 | 332 | −30 | 165 | 468 | 549 | +17.1% |
| Total assets | 634 | 1,173 | 745 | 1,000 | 1,550 | 2,179 | +40.5% |
| Equity | 147 | 422 | 336 | 443 | 794 | 1,220 | +53.8% |
| Liabilities | – | – | 409 | 550 | 747 | 947 | +26.7% |
| Cash and cash equivalents | 207 | 738 | 295 | 504 | 933 | 898 | −3.8% |
| Average number of employees | 0 | 2 | 4 | 4 | 5 | 6 | +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
Annual reports
6 financial years| Financial year | Period | Published | Figures for | Documents |
|---|---|---|---|---|
| 2025 | 01/07/2024 – 30/06/2025 | 05/11/2025 | The company | PDF not statedXBRL |
| 2024 | 01/07/2023 – 30/06/2024 | 02/10/2024 | The company | PDFXBRL |
| 2023 | 01/07/2022 – 30/06/2023 | 21/08/2023 | The company | PDFXBRL |
| 2022 | 01/07/2021 – 30/06/2022 | 07/10/2022 | The company | PDFXBRL |
| 2021 | 01/07/2020 – 30/06/2021 | 09/08/2021 | The company | PDFXBRL |
| 2020 | 01/01/2019 – 30/06/2020 | 03/12/2020 | 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
1,357 companies in the databaseComparison with the other companies in plumbing, heat and air-conditioning installation based on the latest financial year.
Industry median: gross profit DKK 3.3m, net profit DKK 316k, equity DKK 1.3m, 5 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. 19,273of 69,742 Better than 72% | No. 31,002of 69,964 Better than 56% |
| Same industry and fewer than 20 employees1,152 companies in the comparison | No. 443of 1,152 Better than 62% | No. 530of 1,152 Better than 54% |
| Companies that are between 5 and 14 years old33,688 companies in the comparison | No. 11,470of 33,588 Better than 66% | No. 14,096of 33,687 Better than 58% |
| All companies of type ApS66,508 companies in the comparison | No. 19,202of 66,379 Better than 71% | No. 26,934of 66,505 Better than 60% |
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
Plumbing, heat and air-conditioning installation- Sejr Klimateknik ApSDKK 3.6m
- Wicotec Kirkebjerg A/SDKK 419.7m
- Andersen & Heegaard A/SDKK 391.6m
- Sejr Klimateknik ApSDKK 549k
- Wicotec Kirkebjerg A/SDKK 115.1m
- Andersen & Heegaard A/SDKK 32.5m
- Sejr Klimateknik ApSDKK 1.2m
- Wicotec Kirkebjerg A/SDKK 494.9m
- Andersen & Heegaard A/SDKK 88.2m
- Sejr Klimateknik ApS6
- Wicotec Kirkebjerg A/S1,495
- Andersen & Heegaard A/S251
Latest financial year per company. Choose up to three companies from the largest in the industry.
Owners and group
from the Public Ownership Register- Sejr Invest Holding ApS100%
Management
1 active registrationsExecutive management
| Name | Role | Appointed |
|---|---|---|
| Thomas Kronborg Sejr | Director | 18/04/2019 |
- Founders
- Thomas Kronborg Sejr
Signing rule: Virksomheden tegnes af direktøren alene
Address and production units
1 active production unitsAhlgade 61
4300 Holbæk
Holbæk Municipality · Postcode 4300
Other companies at the address (2)
- Ok Rengøring A/SGeneral cleaning of buildings
- KRS Service ApSGeneral cleaning of buildings
| Production unit | Address | Employees | P number |
|---|---|---|---|
| Sejr Klimateknik ApS | Ahlgade 61, 1, 4300 Holbæk | 6 | 1024660520 |
Purpose
Selskabets formål er Virksomhedens formål er levering, reparation, vedligeholdelse af klima- og køleanlæg, og dermed beslægtet virksomhed.
The purpose is quoted from the register in Danish.
Changes year by year
18 registered events20254 changesaddress 1 · accounts 1 · industry 2
- AddressMoved to Ahlgade 61, 1, 4300 Holbæk
- AccountsAnnual report for 2025 published
- IndustryIndustry changed to Plumbing, heat and air-conditioning installation (432200)
- IndustryIndustry changed to Manufacture of non-domestic cooling and ventilation equipment (282500)
20244 changesownership 2 · accounts 1 · address 1
- OwnershipSejr Invest Holding ApS registered as owner (100%)
- OwnershipThomas Kronborg Sejr is no longer registered as owner
- AccountsAnnual report for 2024 published
- AddressMoved to Tækkemandsvej 1, 4300 Holbæk
20232 changesaccounts 1 · address 1
- AccountsAnnual report for 2023 published
- AddressMoved to Fyrren 11, 4300 Holbæk
20222 changesaddress 1 · accounts 1
- AddressMoved to Fyrren 11, 4300 Holbæk
- AccountsAnnual report for 2022 published
20211 changeaccounts 1
- AccountsAnnual report for 2021 published
20201 changeaccounts 1
- AccountsAnnual report for 2020 published
20194 changesaddress 1 · founded 1 · management 1 · ownership 1
- AddressMoved to Rundingsholms Alle 85, 4300 Holbæk
- FoundedRegistered as Sejr Klimateknik ApS
- ManagementThomas Kronborg Sejr appointed director
- OwnershipThomas Kronborg Sejr registered as owner (100%)
Related companies
Same industry in Holbæk
- Per's VVS ApS30 employees
- Gert Jørgensen Holbæk VVS ApS24 employees
- Garborg VVS ApS11 employees
- NV Teknik & Industri ApS9 employees
- VarmeXpert1 ApS9 employees
- Smedegaarden VVS & Kloak ApS9 employees
Largest in the industry
- Wicotec Kirkebjerg A/SDKK 419.7m
- Andersen & Heegaard A/SDKK 391.6m
- Dtek A/SDKK 166.5m
- John Jensen VVS A/SDKK 143.5m
- Når A/SDKK 139.2m
- Gunnar Kristensen VVS A/SDKK 110.3m
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.