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NB Ventilation A/S

Public limited companyCVR 41668016Aalborg ØstActive

NB Ventilation A/S is a public limited company, based in Aalborg Øst, active in manufacture of non-domestic cooling and ventilation equipment, founded in 1972. The company went from a profit in 2024 to a loss of DKK 1.6m in 2025. With 45 employees, the company is about 6 times larger than the industry median. Gross profit is higher than that of 81% of the companies in the industry in the database.

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Key figures · financial year 2025

Gross profitDKK 24.3m−21.4% vs. 2024
Net profit−DKK 1.6m−155.9% vs. 2024
EquityDKK 30m−5.1% vs. 2024
Employees45latest month from CVR

What has changed

calculated from recorded figures and dates

Financials: 2025 against 2024

  • Gross profit fell 21% (2024 → 2025), to DKK 24.3m.
  • Net profit went from a profit of DKK 2.9m to a loss of DKK 1.6m (2024 → 2025).
  • Equity fell 5% (2024 → 2025), to DKK 30m.

Employees

  • 1 fewer employees than a year earlier: 45 (07/2026) against 46 (07/2025).

Management and owners, last 24 months

  • New in management: Carsten Greiffenberg (board member, 16/12/2024), Buster Nissen (director, 16/12/2024) and Jørgen Møllnitz Smit (board member, 20/03/2025) (+4).
  • Stepped down: Buster Nissen (board member, 16/12/2024), Rasmus Hasselgren Gerhardt (board member, 16/12/2024) and John Andersen (chair of the board, 16/12/2024) (+4).
  • New owners registered: Buster Nissen Holding ApS (16/12/2024), Rasmus Gerhardt Holding ApS (16/12/2024) and NB Finans ApS (16/12/2024).
  • No longer registered as owner: Jonny Gerhardt Holding ApS (16/12/2024), Buster Nissen Holding ApS (15/12/2024) and Rasmus Gerhardt Holding ApS (15/12/2024).

Registrations, last 24 months

  • 01/01/2025: Industry changed to Manufacture of non-domestic cooling and ventilation equipment (282500)
  • 16/12/2024: Share capital changed from 1,150,000 DKK to 1,333,275 DKK

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 5mDKK 0DKK 5mDKK 10mDKK 15mDKK 20mDKK 25mDKK 30m202020212022202320242025
EquityNet profit
Financial figures for NB Ventilation A/S
202020212022202320242025Change
Revenuenot statednot statednot statednot statednot statednot stated–
Gross profit18,56816,03124,69930,80230,86224,271−21.4%
Operating profit (EBIT)−72−2,8204,9587,8544,383−1,954−144.6%
Profit before tax−308−2,7344,0427,1104,030−2,024−150.2%
Net profit−264−2,1043,0415,4762,875−1,607−155.9%
Total assets16,71221,52832,30230,75146,32838,855−16.1%
Equity2,7936894,73010,20631,58129,974−5.1%
Liabilities13,90220,83927,11720,23713,7018,602−37.2%
Cash and cash equivalents1792,2407,62110,99920,88120,902+0.1%
Average number of employees424034353638+5.6%

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 25mDKK 30m202020212022202320242025
Gross profitMedian, the industry (145 companies)

Annual reports

6 financial years
Annual reports for NB Ventilation A/S
Financial yearPeriodPublishedFigures forDocuments
202501/01/2025 – 31/12/202524/03/2026The companyPDF not statedXBRL
202401/01/2024 – 31/12/202423/03/2025The companyPDFXBRL
202301/01/2023 – 31/12/202319/03/2024The companyPDFXBRL
202201/01/2022 – 31/12/202226/04/2023The companyPDFXBRL
202101/01/2021 – 31/12/202124/06/2022The companyPDFXBRL
202001/01/2020 – 31/12/202024/06/2021The 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
0102030405008/2309/2310/2311/2312/2301/2402/2403/2404/2405/2406/2407/2408/2409/2410/2411/2412/2401/2502/2503/2504/2505/2506/2507/2508/2509/2510/2511/2512/2501/2602/2603/2604/2605/2606/2607/26
Employees

Position in the industry

145 companies in the database

Comparison with the other companies in manufacture of non-domestic cooling and ventilation equipment based on the latest financial year.

Gross profitDKK 24.3mNo. 28 of 145
Better than 81% of the companies in the industry
EquityDKK 30mNo. 23 of 145
Better than 85% of the companies in the industry
Number of employees45No. 26 of 145
Better than 83% of the companies in the industry

Industry median: gross profit DKK 6.1m, net profit DKK 659k, equity DKK 3.6m, 7 employees.

DKK 100kDKK 912kDKK 8.3mDKK 75.9mDKK 331.4mHere
Distribution of gross profit for 137 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. 2,051of 9,892
Better than 79%
No. 1,194of 9,922
Better than 88%
Same industry and 20–49 employees18 companies in the comparison
No. 7of 18
Better than 65%
No. 5of 18
Better than 76%
Companies that are at least 30 years old10,276 companies in the comparison
No. 2,467of 10,152
Better than 76%
No. 2,767of 10,275
Better than 73%
All companies of type A/S18,025 companies in the comparison
No. 5,130of 17,786
Better than 71%
No. 4,929of 18,024
Better than 73%

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

Manufacture of non-domestic cooling and ventilation equipment
Gross profit
  1. NB Ventilation A/SDKK 24.3m
  2. Johnson Controls Denmark ApSDKK 692.3m
  3. Skov A/s. GlyngøreDKK 593.2m
Net profit
  1. NB Ventilation A/S−DKK 1.6m
  2. Johnson Controls Denmark ApS−DKK 1.2m
  3. Skov A/s. GlyngøreDKK 194.3m
Equity
  1. NB Ventilation A/SDKK 30m
  2. Johnson Controls Denmark ApSDKK 1.3bn
  3. Skov A/s. GlyngøreDKK 507.5m
Employees
  1. NB Ventilation A/S45
  2. Johnson Controls Denmark ApS804
  3. Skov A/s. Glyngøre408

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
  • Buster Nissen Holding ApS25%
  • Rasmus Gerhardt Holding ApS25%
  • NB Finans ApS33.33%
NB Ventilation A/S

Management

6 active registrations

Executive management

Executive management at NB Ventilation A/S
NameRoleAppointed
Rasmus Hasselgren GerhardtCEO24/05/2022
Buster NissenDirector16/12/2024

Board of directors

Board of directors at NB Ventilation A/S
NameRoleAppointed
Niels Jørgen KristensenBoard member23/08/2022
Carsten GreiffenbergBoard member16/12/2024
Jørgen Møllnitz SmitBoard member20/03/2025
Thomas Tvedergaard LarsenChair of the board05/11/2025
Former management (25)
Former management at NB Ventilation A/S
NameRoleAppointedResigned
Poul ThorupBoard member21/12/197221/03/2016
Gunner Dettmann GerhardtBoard member21/12/197217/05/2002
Gunner Dettmann GerhardtDirector21/12/197226/08/2002
Jostein SlettebøBoard member21/12/197213/02/2003
Carsten Dettmann GerhardtBoard member30/03/200020/03/2016
Jonny Dettmann GerhardtBoard member17/05/200231/07/2016
Carsten Dettmann GerhardtCEO26/08/200231/12/2015
Øyvind ØstigårdBoard member13/02/200315/05/2009
Peter Corfitz HolmBoard member01/12/201221/03/2016
Carsten Dettmann GerhardtDirector01/01/201621/03/2016
Per HøjbjerreCEO01/01/201624/05/2022
Carsten Dettmann GerhardtChair of the board21/03/201631/07/2016
Per HøjbjerreBoard member21/03/201624/05/2022
Buster NissenBoard member21/03/201616/12/2024
Carsten Dettmann GerhardtBoard member01/08/201601/08/2016
Jonny Dettmann GerhardtChair of the board01/08/201622/08/2022
Bo PrangsgaardBoard member01/01/201704/05/2022
Helle Dettmann OlsenBoard member01/01/201731/10/2019
Johnny ØlandBoard member29/03/201704/05/2022
Rasmus Hasselgren GerhardtBoard member31/10/201916/12/2024
John AndersenChair of the board23/08/202216/12/2024
Jonny Dettmann GerhardtBoard member23/08/202216/12/2024
Thomas Tvedergaard LarsenBoard member16/12/202420/03/2025
Jørgen Møllnitz SmitChair of the board16/12/202419/03/2025
Jørgen LægaardChair of the board20/03/202505/11/2025

Signing rule: Selskabet tegnes af to bestyrelsesmedlemmer i forening eller af et bestyrelsesmedlem i forening med en direktør

Address and production units

1 active production units

Svanningevej 2
9220 Aalborg Øst

Aalborg Municipality · Postcode 9220

Other companies at the address (1)

Production units
Production unitAddressEmployeesP number
NB VENTILATION A/SSvanningevej 2, 9220 Aalborg Øst461001814323

Purpose

Selskabets formål er at drive handel og industri fortrinsvis inden for ventilationsbranchen

The purpose is quoted from the register in Danish.

Changes year by year

110 registered events
20261 changeaccounts 1
  • Annual report for 2025 published
20258 changesmanagement 6 · accounts 1 · industry 1
  • Thomas Tvedergaard Larsen appointed chair of the board
  • Jørgen Lægaard stepped down as chair of the board
  • Annual report for 2024 published
  • Jørgen Møllnitz Smit appointed board member
  • Jørgen Lægaard appointed chair of the board
  • Thomas Tvedergaard Larsen stepped down as board member
  • Jørgen Møllnitz Smit stepped down as chair of the board
  • Industry changed to Manufacture of non-domestic cooling and ventilation equipment (282500)
202416 changescapital 1 · management 8 · ownership 6 · accounts 1
  • Share capital changed from 1,150,000 DKK to 1,333,275 DKK
  • Buster Nissen appointed director
  • Carsten Greiffenberg appointed board member
  • Jørgen Møllnitz Smit appointed chair of the board
  • Thomas Tvedergaard Larsen appointed board member
  • Jonny Dettmann Gerhardt stepped down as board member
  • John Andersen stepped down as chair of the board
  • Rasmus Hasselgren Gerhardt stepped down as board member
  • Buster Nissen stepped down as board member
  • BUSTER NISSEN HOLDING ApS registered as owner (25%)
  • NB FINANS APS registered as owner (33.33%)
  • Rasmus Gerhardt Holding ApS registered as owner (25%)
  • JONNY GERHARDT HOLDING ApS is no longer registered as owner
  • Rasmus Gerhardt Holding ApS is no longer registered as owner
  • BUSTER NISSEN HOLDING ApS is no longer registered as owner
  • Annual report for 2023 published
20231 changeaccounts 1
  • Annual report for 2022 published
202223 changesmerger 1 · capital 1 · management 9 · accounts 1 · ownership 10 · address 1
  • Merger registered in CVR
  • Share capital changed from 500,000 DKK to 1,150,000 DKK
  • Jonny Dettmann Gerhardt appointed board member
  • Niels Jørgen Kristensen appointed board member
  • John Andersen appointed chair of the board
  • Jonny Dettmann Gerhardt stepped down as chair of the board
  • Annual report for 2021 published
  • Rasmus Gerhardt Holding ApS registered as owner (33.33%)
  • BUSTER NISSEN HOLDING ApS registered as owner (33.33%)
  • Steffen Gerhardt Holding ApS is no longer registered as owner
  • BUSTER NISSEN HOLDING ApS is no longer registered as owner
  • Rasmus Gerhardt Holding ApS is no longer registered as owner
  • BUSTER NISSEN HOLDING ApS registered as owner (25%)
  • Rasmus Gerhardt Holding ApS registered as owner (25%)
  • PH-Decom ApS is no longer registered as owner
  • BUSTER NISSEN HOLDING ApS is no longer registered as owner
  • Rasmus Gerhardt Holding ApS is no longer registered as owner
  • Rasmus Hasselgren Gerhardt appointed ceo
  • Per Højbjerre stepped down as board member
  • Per Højbjerre stepped down as ceo
  • Johnny Øland stepped down as board member
  • Bo Prangsgaard stepped down as board member
  • Moved to Svanningevej 2, 9220 Aalborg Øst
20211 changeaccounts 1
  • Annual report for 2020 published
201913 changesmanagement 2 · ownership 11
  • Rasmus Hasselgren Gerhardt appointed board member
  • Helle Dettmann Olsen stepped down as board member
  • JONNY GERHARDT HOLDING ApS registered as owner (25%)
  • BUSTER NISSEN HOLDING ApS registered as owner (10%)
  • PH-Decom ApS registered as owner (25%)
  • Rasmus Gerhardt Holding ApS registered as owner (10%)
  • Steffen Gerhardt Holding ApS registered as owner (10%)
  • HELLE DETTMANN OLSEN HOLDING ApS is no longer registered as owner
  • Steffen Gerhardt Holding ApS is no longer registered as owner
  • Rasmus Gerhardt Holding ApS is no longer registered as owner
  • PH-Decom ApS is no longer registered as owner
  • BUSTER NISSEN HOLDING ApS is no longer registered as owner
  • JONNY GERHARDT HOLDING ApS is no longer registered as owner
20173 changesmanagement 3
  • Johnny Øland appointed board member
  • Bo Prangsgaard appointed board member
  • Helle Dettmann Olsen appointed board member
201620 changesmanagement 14 · ownership 6
  • Jonny Dettmann Gerhardt appointed chair of the board
  • Carsten Dettmann Gerhardt appointed board member
  • Carsten Dettmann Gerhardt stepped down as board member
  • Carsten Dettmann Gerhardt stepped down as chair of the board
  • Jonny Dettmann Gerhardt stepped down as board member
  • Buster Nissen appointed board member
  • Per Højbjerre appointed board member
  • Carsten Dettmann Gerhardt appointed chair of the board
  • Carsten Dettmann Gerhardt stepped down as director
  • Peter Corfitz Holm stepped down as board member
  • Poul Thorup stepped down as board member
  • Carsten Dettmann Gerhardt stepped down as board member
  • Steffen Gerhardt Holding ApS registered as owner (10%)
  • Rasmus Gerhardt Holding ApS registered as owner (10%)
  • PH-Decom ApS registered as owner (20%)
  • Per Højbjerre appointed ceo
  • Carsten Dettmann Gerhardt appointed director
  • BUSTER NISSEN HOLDING ApS registered as owner (10%)
  • HELLE DETTMANN OLSEN HOLDING ApS registered as owner (20%)
  • JONNY GERHARDT HOLDING ApS registered as owner (20%)
20154 changesmanagement 1 · ownership 3
  • Carsten Dettmann Gerhardt stepped down as ceo
  • HELLE DETTMANN OLSEN HOLDING ApS is no longer registered as owner
  • CARSTEN GERHARDT HOLDING ApS is no longer registered as owner
  • JONNY GERHARDT HOLDING ApS is no longer registered as owner
20121 changemanagement 1
  • Peter Corfitz Holm appointed board member
20094 changesmanagement 1 · ownership 3
  • Øyvind Østigård stepped down as board member
  • HELLE DETTMANN OLSEN HOLDING ApS registered as owner (33.33%)
  • CARSTEN GERHARDT HOLDING ApS registered as owner (33.33%)
  • JONNY GERHARDT HOLDING ApS registered as owner (33.33%)
20081 changeindustry 1
  • Industry changed to Manufacture of non-domestic cooling and ventilation equipment (282500)
20051 changeaddress 1
  • Moved to Svanningevej 2, 9220 Aalborg Øst
20032 changesmanagement 2
  • Øyvind Østigård appointed board member
  • Jostein Slettebø stepped down as board member
20024 changesmanagement 4
  • Carsten Dettmann Gerhardt appointed ceo
  • Gunner Dettmann Gerhardt stepped down as director
  • Jonny Dettmann Gerhardt appointed board member
  • Gunner Dettmann Gerhardt stepped down as board member
20001 changemanagement 1
  • Carsten Dettmann Gerhardt appointed board member
19961 changecapital 1
  • Share capital changed from 300,000 DKK to 500,000 DKK
19725 changesfounded 1 · management 4
  • Registered as NB VENTILATION A/S
  • Gunner Dettmann Gerhardt appointed board member
  • Jostein Slettebø appointed board member
  • Gunner Dettmann Gerhardt appointed director
  • Poul Thorup appointed board member

Related companies

Same industry in Aalborg

See all →

Same people in management

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