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Jonassen Ventilation A/S

Public limited companyCVR 82058214Aalborg SVActive

Jonassen Ventilation A/S is a public limited company, based in Aalborg SV, active in plumbing, heat and air-conditioning installation, founded in 1977. Net profit rose 62% from 2024 to 2025, ending at DKK 4.6m. With 28 employees, the company is about 6 times larger than the industry median. Equity grew to DKK 11.1m in 2025.

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Key figures · financial year 2025

Gross profitDKK 26.2m+14.6% vs. 2024
Net profitDKK 4.6m+62.3% vs. 2024
EquityDKK 11.1m+18.7% vs. 2024
Employees28latest month from CVR

What has changed

calculated from recorded figures and dates

Financials: 2025 against 2024

  • Gross profit rose 15% (2024 → 2025), to DKK 26.2m.
  • Net profit rose 62% (2024 → 2025), to DKK 4.6m.
  • Equity rose 19% (2024 → 2025), to DKK 11.1m.

Employees

  • 1 more employees than a year earlier: 28 (07/2026) against 27 (07/2025).

Management and owners, last 24 months

  • New in management: Mikkel Torp Jacobsen (board member, 26/06/2026) and Morten Plesner-Jessen (chair of the board, 26/06/2026).
  • Stepped down: Gitte Glad Jonassen (chair of the board, 26/06/2026).
  • New owners registered: LJ Holding af Den 1. Juli 1999 ApS (26/06/2026), MTJ Holding 2024 ApS (26/06/2026) and MPJ Holding 2024 ApS (26/06/2026).
  • No longer registered as owner: LJ Holding af Den 1. Juli 1999 ApS (25/06/2026), MPJ Holding 2024 ApS (25/06/2026) and MTJ Holding 2024 ApS (25/06/2026).

Registrations, last 24 months

  • 01/01/2025: Industry changed to Plumbing, heat and air-conditioning installation (432200)

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 2mDKK 4mDKK 6mDKK 8mDKK 10mDKK 12mDKK 14m202020212022202320242025
EquityNet profit
Financial figures for Jonassen Ventilation A/S
202020212022202320242025Change
Revenuenot statednot statednot statednot statednot statednot stated–
Gross profit21,65318,19620,40927,40722,88026,227+14.6%
Operating profit (EBIT)7,0262,5513,7947,4793,8075,934+55.9%
Profit before tax6,8372,3453,5027,1723,6925,844+58.3%
Net profit5,3261,7772,7285,4642,8034,550+62.3%
Total assets26,26327,39532,97225,67321,52920,720−3.8%
Equity14,15511,93214,66011,3589,36111,111+18.7%
Liabilities11,44214,23017,56713,08111,2878,826−21.8%
Cash and cash equivalents6720–4,4035906,041+924.3%
Average number of employees24––282930+3.4%

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 5mDKK 10mDKK 15mDKK 20mDKK 25m202020212022202320242025
Gross profitMedian, the industry (1,357 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 Jonassen Ventilation A/S
Financial yearPeriodPublishedFigures forDocuments
202501/01/2025 – 31/12/202506/03/2026The companyPDF not statedXBRL
202401/01/2024 – 31/12/202411/03/2025The companyPDFXBRL
202301/01/2023 – 31/12/202321/03/2024The companyPDFXBRL
202201/01/2022 – 31/12/202211/05/2023The companyPDFXBRL
202101/01/2021 – 31/12/202127/06/2022The companyPDFXBRL
202001/01/2020 – 31/12/202002/03/2021The 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
05101520253008/2309/2310/2311/2312/2301/2402/2403/2404/2405/2406/2407/2408/2409/2410/2411/2412/2401/2502/2503/2504/2505/2506/2507/2508/2509/2510/2511/2512/2501/2602/2603/2604/2605/2606/2607/26
Employees

Position in the industry

1,357 companies in the database

Comparison with the other companies in plumbing, heat and air-conditioning installation based on the latest financial year.

Gross profitDKK 26.2mNo. 66 of 1,357
Better than 95% of the companies in the industry
EquityDKK 11.1mNo. 71 of 1,357
Better than 95% of the companies in the industry
Number of employees28No. 90 of 1,357
Better than 93% of the companies in the industry

Industry median: gross profit DKK 3.3m, net profit DKK 316k, equity DKK 1.3m, 5 employees.

DKK 100kDKK 805kDKK 6.5mDKK 52.2mDKK 209.5mHere
Distribution of gross profit for 1,334 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 20–49 employees9,922 companies in the comparison
No. 1,751of 9,892
Better than 82%
No. 2,848of 9,922
Better than 71%
Same industry and 20–49 employees153 companies in the comparison
No. 21of 153
Better than 87%
No. 27of 153
Better than 83%
Companies that are at least 30 years old10,276 companies in the comparison
No. 2,317of 10,152
Better than 77%
No. 4,528of 10,275
Better than 56%
All companies of type A/S18,025 companies in the comparison
No. 4,840of 17,786
Better than 73%
No. 8,334of 18,024
Better than 54%

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
Gross profit
  1. Jonassen Ventilation A/SDKK 26.2m
  2. Wicotec Kirkebjerg A/SDKK 419.7m
  3. Andersen & Heegaard A/SDKK 391.6m
Net profit
  1. Jonassen Ventilation A/SDKK 4.6m
  2. Wicotec Kirkebjerg A/SDKK 115.1m
  3. Andersen & Heegaard A/SDKK 32.5m
Equity
  1. Jonassen Ventilation A/SDKK 11.1m
  2. Wicotec Kirkebjerg A/SDKK 494.9m
  3. Andersen & Heegaard A/SDKK 88.2m
Employees
  1. Jonassen Ventilation A/S28
  2. Wicotec Kirkebjerg A/S1,495
  3. 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
Owners
  • Klaus Park Pedersen Holding ApS15%
  • LJ Holding af Den 1. Juli 1999 ApS15%
  • MTJ Holding 2024 ApS33.33%
  • MPJ Holding 2024 ApS33.33%
Jonassen Ventilation A/S

Management

5 active registrations

Executive management

Executive management at Jonassen Ventilation A/S
NameRoleAppointed
Lars Falk JonassenDirector24/11/1999

Board of directors

Board of directors at Jonassen Ventilation A/S
NameRoleAppointed
Lars Falk JonassenBoard member04/08/1977
Klaus Nadayao Park PedersenBoard member16/08/2012
Mikkel Torp JacobsenBoard member26/06/2026
Morten Plesner-JessenChair of the board26/06/2026
Former management (8)
Former management at Jonassen Ventilation A/S
NameRoleAppointedResigned
Helle Falk JonassenBoard member04/08/197724/11/1999
Ole Falk JonassenBoard member04/08/197724/11/1999
Ole Falk JonassenDirector04/08/197724/11/1999
Bente JonassenBoard member04/08/197724/11/1999
Gitte Glad JonassenBoard member24/11/199931/12/2022
Svend Erik PedersenBoard member24/11/199916/08/2012
Jens UggerhøjChair of the board01/01/202231/12/2022
Gitte Glad JonassenChair of the board01/01/202326/06/2026

Signing rule: Selskabet tegnes af hele bestyrelsen i forening, eller af direktionen

Address and production units

1 active production units

Vandmanden 40
9200 Aalborg SV

Aalborg Municipality · Postcode 9200

Production units
Production unitAddressEmployeesP number
JONASSEN VENTILATION A/SVandmanden 40, 9200 Aalborg SV291002636208

Purpose

Selskabets formål er at drive virksomhed, produktion, reparation og montage indenfor ventilation og anden i forbindelse hermed beslægtet virksomhed

The purpose is quoted from the register in Danish.

Changes year by year

53 registered events
202610 changesmanagement 3 · ownership 6 · accounts 1
  • Morten Plesner-Jessen appointed chair of the board
  • Mikkel Torp Jacobsen appointed board member
  • Gitte Glad Jonassen stepped down as chair of the board
  • MTJ Holding 2024 ApS registered as owner (33.33%)
  • MPJ Holding 2024 ApS registered as owner (33.33%)
  • LJ HOLDING AF DEN 1. JULI 1999 ApS registered as owner (15%)
  • MTJ Holding 2024 ApS is no longer registered as owner
  • MPJ Holding 2024 ApS is no longer registered as owner
  • LJ HOLDING AF DEN 1. JULI 1999 ApS is no longer registered as owner
  • Annual report for 2025 published
20252 changesaccounts 1 · industry 1
  • Annual report for 2024 published
  • Industry changed to Plumbing, heat and air-conditioning installation (432200)
20245 changesaccounts 1 · ownership 4
  • Annual report for 2023 published
  • MTJ Holding 2024 ApS registered as owner (15%)
  • MPJ Holding 2024 ApS registered as owner (15%)
  • LJ HOLDING AF DEN 1. JULI 1999 ApS registered as owner (50%)
  • LJ HOLDING AF DEN 1. JULI 1999 ApS is no longer registered as owner
20232 changesaccounts 1 · management 1
  • Annual report for 2022 published
  • Gitte Glad Jonassen appointed chair of the board
20224 changesmanagement 3 · accounts 1
  • Jens Uggerhøj stepped down as chair of the board
  • Gitte Glad Jonassen stepped down as board member
  • Annual report for 2021 published
  • Jens Uggerhøj appointed chair of the board
20212 changesaccounts 1 · address 1
  • Annual report for 2020 published
  • Moved to Vandmanden 40, 9200 Aalborg SV
20201 changeaddress 1
  • Moved to Vandmanden 16A, 9200 Aalborg SV
20193 changesaddress 3
  • Moved to Vandmanden 16A, 9200 Aalborg SV
  • Moved to Vandmanden 16A, 9200 Aalborg SV
  • Moved to Vandmanden 16A, 9200 Aalborg SV
20125 changescapital 1 · management 2 · ownership 2
  • Share capital changed from 500,000 DKK to 588,235 DKK
  • Klaus Nadayao Park Pedersen appointed board member
  • Svend Erik Pedersen stepped down as board member
  • KLAUS PARK PEDERSEN HOLDING ApS registered as owner (15%)
  • LJ HOLDING AF DEN 1. JULI 1999 ApS registered as owner (66.67%)
20081 changeindustry 1
  • Industry changed to Plumbing, heat and air-conditioning installation (432200)
20071 changeaddress 1
  • Moved to Grydstedvej 50, Grydsted, 9240 Nibe
20031 changeaddress 1
  • Moved to Grydstedvej 50, Grydsted, 9240 Nibe
20011 changeaddress 1
  • Moved to Lille Nørregade 3, 9240 Nibe
19997 changesmanagement 7
  • Lars Falk Jonassen appointed director
  • Svend Erik Pedersen appointed board member
  • Gitte Glad Jonassen appointed board member
  • Ole Falk Jonassen stepped down as director
  • Ole Falk Jonassen stepped down as board member
  • Helle Falk Jonassen stepped down as board member
  • Bente Jonassen stepped down as board member
19961 changecapital 1
  • Share capital changed from 300,000 DKK to 500,000 DKK
19871 changecapital 1
  • Share capital changed from 80,000 DKK to 300,000 DKK
19776 changesfounded 1 · management 5
  • Registered as JONASSEN VENTILATION A/S
  • Ole Falk Jonassen appointed director
  • Ole Falk Jonassen appointed board member
  • Helle Falk Jonassen appointed board member
  • Bente Jonassen appointed board member
  • Lars Falk Jonassen appointed board member

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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.

View in CVRReport a correction