CVR: 82058214
DKK 26,227,314
Gross profit
Net result: DKK 4,550,207
LJ HOLDING AF DEN 1. JULI 1999 ApS, KLAUS PARK PEDERSEN HOLDING ApS
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CVR · view ownership and management
Owner registered: LJ HOLDING AF DEN 1. JULI 1999 ApS
CVR · 26/06/2026
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JONASSEN VENTILATION A/S is a Danish company of the type Aktieselskab based in Aalborg SV, founded in 1977. The company is registered under the industry Installation af vvs-, varme- og klimaanlæg. The management consists of Lars Falk Jonassen. The company's owners include LJ HOLDING AF DEN 1. JULI 1999 ApS, KLAUS PARK PEDERSEN HOLDING ApS and MTJ Holding 2024 ApS. The company has 24 employees (2018). In 2025, the company reported a gross profit of DKK 26,227,314 and a net result of DKK 4,550,207 compared with DKK 2,803,317 the year before. Equity in the 2025 report amounted to DKK 11,111,305.
Source: annual report 2025, Danish Business Authority
The financial health of JONASSEN VENTILATION A/S appears stable, with a notable trend of increasing gross profit and profit over recent years. Gross profit rose from 18.2 million DKK in 2021 to 27.4 million DKK in 2023, while profit increased from 1.8 million DKK to 5.5 million DKK in the same period, indicating strong operational efficiency and profitability. Equity has fluctuated, peaking at 14.7 million DKK in 2022 before dropping to 11.1 million DKK in 2025, which may raise concerns about financial stability. The company operates within the HVAC installation sector, where it has maintained a competitive position, although the lack of disclosed revenue figures limits a comprehensive assessment of its market size and overall performance.
AI-generated summary · Generated 14/08/2026
Selskabets formål er at drive virksomhed, produktion, reparation og montage indenfor ventilation og anden i forbindelse hermed 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 | 26.2 mio. | 4.6 mio. | 20.7 mio. | 11.1 mio. | 30 | |
| 202401/01/2024 – 31/12/2024 | 22.9 mio. | 2.8 mio. | 21.5 mio. | 9.4 mio. | 29 | |
| 202301/01/2023 – 31/12/2023 | 27.4 mio. | 5.5 mio. | 25.7 mio. | 11.4 mio. | 28 | |
| 202201/01/2022 – 31/12/2022 | 20.4 mio. | 2.7 mio. | 33 mio. | 14.7 mio. | 28 | |
| 202101/01/2021 – 31/12/2021 | 18.2 mio. | 1.8 mio. | 27.4 mio. | 11.9 mio. | 27 | |
| 202001/01/2020 – 31/12/2020 | 21.7 mio. | 5.3 mio. | 26.3 mio. | 14.2 mio. | 24 | |
| 201901/01/2019 – 31/12/2019 | 22.2 mio. | 5.1 mio. | 22 mio. | 12.8 mio. | 25 | |
| 201801/01/2018 – 31/12/2018 | 24.7 mio. | 6.9 mio. | 25.5 mio. | 9.6 mio. | 24 | |
| 201701/01/2017 – 31/12/2017 | 19 mio. | 4.1 mio. | 20.3 mio. | 6.8 mio. | 22 | |
| 201601/01/2016 – 31/12/2016 | 12.7 mio. | 3.8 mio. | 14.5 mio. | 6.5 mio. | - | |
| 201501/01/2015 – 31/12/2015 | 10.8 mio. | 3.9 mio. | 12.5 mio. | 5.4 mio. | - | |
| 201401/01/2014 – 31/12/2014 | 9.4 mio. | 3.8 mio. | 9 mio. | 5.3 mio. | - | |
| 201301/01/2013 – 31/12/2013 | 6.8 mio. | 2.4 mio. | 9.2 mio. | 3.9 mio. | - | |
| 201201/01/2012 – 31/12/2012 | 5.5 mio. | 2 mio. | 8.4 mio. | 3.7 mio. | - |
Compared to 2.066 companies in Installation af vvs-, varme- og klimaanlæg
Comparison is based on industry median values
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Try company screeningJONASSEN VENTILATION A/S was founded on 4 August 1977.
JONASSEN VENTILATION A/S is registered under the industry Installation af vvs-, varme- og klimaanlæg (industry code 432200).
JONASSEN VENTILATION A/S had 24 employees in 2018 according to the Danish CVR register.
The owners of JONASSEN VENTILATION A/S include LJ HOLDING AF DEN 1. JULI 1999 ApS, KLAUS PARK PEDERSEN HOLDING ApS and MTJ Holding 2024 ApS.
jonassen.dk belongs to JONASSEN VENTILATION A/S, CVR number 82058214.
In 2025, JONASSEN VENTILATION A/S reported a gross profit of DKK 26,227,314.
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Contact info changed: new phone: 96399911, new email: [email protected], new website: www.jonassen.dk (June 30, 2026).
As of June 26, 2026, Mikkel Torp Jacobsen has joined the board of directors of JONASSEN VENTILATION A/S.
As of June 26, 2026, Morten Plesner-Jessen has joined the board of directors of JONASSEN VENTILATION A/S.
As of June 26, 2026, Gitte Glad Jonassen has left the board of directors of JONASSEN VENTILATION A/S.
As of June 26, 2026, LJ HOLDING AF DEN 1. JULI 1999 ApS is registered as an owner of JONASSEN VENTILATION A/S with an ownership share of 15%.
As of June 26, 2026, MTJ Holding 2024 ApS is registered as an owner of JONASSEN VENTILATION A/S with an ownership share of 33%.
As of June 26, 2026, MPJ Holding 2024 ApS is registered as an owner of JONASSEN VENTILATION A/S with an ownership share of 33%.
JONASSEN VENTILATION A/S has published its annual report for 2025. Gross profit came to DKK 26,227,314, and the net result was DKK 4,550,207.
As of August 20, 2025, BDO Statsautoriseret Revisionspartnerselskab has been appointed auditor of JONASSEN VENTILATION A/S.
As of August 20, 2025, A/S PSE 17 NR. 1056 has stepped down as auditor of JONASSEN VENTILATION A/S.
JONASSEN VENTILATION A/S has published its annual report for 2024. Gross profit came to DKK 22,879,840, and the net result was DKK 2,803,317.
JONASSEN VENTILATION A/S has published its annual report for 2023. Gross profit came to DKK 27,407,451, and the net result was DKK 5,464,250.
As of September 14, 2023, A/S PSE 17 NR. 1056 has been appointed auditor of JONASSEN VENTILATION A/S.
As of September 14, 2023, PRICEWATERHOUSECOOPERS STATSAUTORISERET REVISIONSPARTNERSELSKAB has stepped down as auditor of JONASSEN VENTILATION A/S.
JONASSEN VENTILATION A/S has published its annual report for 2022. Gross profit came to DKK 20,408,555, and the net result was DKK 2,728,414.
As of January 1, 2023, Gitte Glad Jonassen has joined the board of directors of JONASSEN VENTILATION A/S.
As of December 31, 2022, Jens Uggerhøj has left the board of directors of JONASSEN VENTILATION A/S.
As of December 31, 2022, Gitte Glad Jonassen has left the board of directors of JONASSEN VENTILATION A/S.
JONASSEN VENTILATION A/S has published its annual report for 2021. Gross profit came to DKK 18,195,956, and the net result was DKK 1,777,410.
As of January 1, 2022, Jens Uggerhøj has joined the board of directors of JONASSEN VENTILATION A/S.
As of December 21, 2021, PRICEWATERHOUSECOOPERS STATSAUTORISERET REVISIONSPARTNERSELSKAB has been appointed auditor of JONASSEN VENTILATION A/S.
As of December 21, 2021, A/S PSE 17 NR. 1056 has stepped down as auditor of JONASSEN VENTILATION A/S.
JONASSEN VENTILATION A/S has published its annual report for 2020. Gross profit came to DKK 21,653,469, and the net result was DKK 5,325,653.
JONASSEN VENTILATION A/S has published its annual report for 2019. Gross profit came to DKK 22,182,470, and the net result was DKK 5,074,546.
JONASSEN VENTILATION A/S has published its annual report for 2018. Gross profit came to DKK 24,683,454, and the net result was DKK 6,854,326.
JONASSEN VENTILATION A/S has published its annual report for 2017. Gross profit came to DKK 18,962,081, and the net result was DKK 4,146,014.
JONASSEN VENTILATION A/S has published its annual report for 2016. Gross profit came to DKK 12,732,494, and the net result was DKK 3,804,031.
JONASSEN VENTILATION A/S has published its annual report for 2015. Gross profit came to DKK 10,788,842, and the net result was DKK 3,860,998.
JONASSEN VENTILATION A/S has published its annual report for 2014. Gross profit came to DKK 9,448,272, and the net result was DKK 3,784,565.
JONASSEN VENTILATION A/S has published its annual report for 2013. Gross profit came to DKK 6,816,342, and the net result was DKK 2,417,891.
JONASSEN VENTILATION A/S has published its annual report for 2012. Gross profit came to DKK 5,532,711, and the net result was DKK 2,033,340.
As of August 16, 2012, Klaus Nadayao Park Pedersen has joined the board of directors of JONASSEN VENTILATION A/S.
As of August 16, 2012, Svend Erik Pedersen has left the board of directors of JONASSEN VENTILATION A/S.
As of June 29, 2012, KLAUS PARK PEDERSEN HOLDING ApS is registered as an owner of JONASSEN VENTILATION A/S with an ownership share of 15%.
As of February 9, 2010, A/S PSE 17 NR. 1056 has been appointed auditor of JONASSEN VENTILATION A/S.
As of February 9, 2010, PALSGAARD & HANSEN STATSAUTORISERET REVISIONSPARTNERSELSKAB has stepped down as auditor of JONASSEN VENTILATION A/S.
As of June 7, 2006, PALSGAARD & HANSEN STATSAUTORISERET REVISIONSPARTNERSELSKAB has been appointed auditor of JONASSEN VENTILATION A/S.
As of June 7, 2006, Ole Nielsen Bach has stepped down as auditor of JONASSEN VENTILATION A/S.
As of November 5, 2002, Ole Nielsen Bach has been appointed auditor of JONASSEN VENTILATION A/S.
As of November 5, 2002, Kpmg C Jespersen has stepped down as auditor of JONASSEN VENTILATION A/S.
As of November 24, 1999, Gitte Glad Jonassen has joined the board of directors of JONASSEN VENTILATION A/S.
As of November 24, 1999, Svend Erik Pedersen has joined the board of directors of JONASSEN VENTILATION A/S.
As of November 24, 1999, Helle Falk Jonassen has left the board of directors of JONASSEN VENTILATION A/S.
As of November 24, 1999, Ole Falk Jonassen has left the board of directors of JONASSEN VENTILATION A/S.
As of November 24, 1999, Bente Jonassen has left the board of directors of JONASSEN VENTILATION A/S.
As of November 24, 1999, Lars Falk Jonassen is registered as director of JONASSEN VENTILATION A/S.
As of November 24, 1999, Ole Falk Jonassen has stepped down as director of JONASSEN VENTILATION A/S.
As of February 15, 1999, Kpmg C Jespersen has been appointed auditor of JONASSEN VENTILATION A/S.
As of February 15, 1999, STATSAUTORISERET REVISIONSAKTIESELSKAB AF 29/12 1995. has stepped down as auditor of JONASSEN VENTILATION A/S.
As of November 27, 1996, STATSAUTORISERET REVISIONSAKTIESELSKAB AF 29/12 1995. has been appointed auditor of JONASSEN VENTILATION A/S.
As of November 27, 1996, Finn Arnold Lomborg Kornum has stepped down as auditor of JONASSEN VENTILATION A/S.
As of August 4, 1977, Finn Arnold Lomborg Kornum has been appointed auditor of JONASSEN VENTILATION A/S.
As of August 4, 1977, Lars Falk Jonassen has joined the board of directors of JONASSEN VENTILATION A/S.
As of August 4, 1977, Helle Falk Jonassen has joined the board of directors of JONASSEN VENTILATION A/S.
As of August 4, 1977, Ole Falk Jonassen has joined the board of directors of JONASSEN VENTILATION A/S.
As of August 4, 1977, Bente Jonassen has joined the board of directors of JONASSEN VENTILATION A/S.
As of August 4, 1977, Ole Falk Jonassen is registered as director of JONASSEN VENTILATION A/S.
JONASSEN VENTILATION A/S was founded on August 4, 1977.
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