Owners, management and financials
CVR: 27652328
Secondary names: SYDFYNS ELFORSYNING INTRANET A/S, SYDFYNS ELFORSYNING BREDBÅND A/S, SEF INTRANET A/S
Previous names: SYDFYNS INTRANET A/S
DKK 36,920,823
Revenue
Net result: DKK 6,260,894
Sinal Infrastruktur A/S (25-33,32%), SEF A/S (66,66-89,99%)
CVR · view owners
Henning Rask
Board: Lars Peder Foged (chair) and 3 members
CVR · view management
Active
Founded 11 March 2004
CVR · view overview
0 employees
Annual report 2025 · average
Director role ended: Claus Holm Andersen
CVR · 25/03/2026
View the full event history
SEF FIBER A/S is a Danish company of the type Aktieselskab based in Svendborg, founded in 2004. The company is registered under the industry Levering af fastnetbaseret, trådløs og satellitbaseret telekommunikation. The company was previously named SYDFYNS INTRANET A/S. The management consists of Henning Rask. The board consists of Lars Peder Foged (chair), Carsten Bryder Thejls, Jakob Horstmann and Rasmus Thomsen Ingstrup. The company is owned by Sinal Infrastruktur A/S and SEF A/S. According to the 2025 annual report, the company had an average of 0 employees. In 2025, the company reported revenue of DKK 36,920,823 and a net result of DKK 6,260,894 compared with DKK 31,983,721 the year before. Equity in the 2025 report amounted to DKK 334,841,470.
Source: annual report 2025, Danish Business Authority
SEF FIBER A/S demonstrates a fluctuating financial health with a notable recovery in profitability, achieving a profit of 6,260,894 DKK in 2025 after a significant loss of 14,665,000 DKK in 2022. Revenue has shown a general upward trend, increasing from 27,074,000 DKK in 2021 to 36,920,823 DKK in 2025, although there was a slight decline in 2024. The company maintains a strong equity position at 334,841,470 DKK, indicating resilience, but the volatility in profit margins raises concerns about operational stability. Positioned within the telecommunications industry, SEF FIBER A/S is adapting to market demands, but continued focus on consistent profitability will be crucial for sustaining growth.
AI-generated summary · Generated 02/05/2026
Selskabets formål er at drive virksomhed indenfor telekommunikation, bl.a. med salg og udlejning af forbindelser til internetadgang, telefoni og TV signaler samt enhver i forbindelse hermed stående virksomhed.
Source: annual reports filed with the Danish Business Authority.
| Period | Revenue | Profit/Loss | Total Assets | Equity | Employees | Report |
|---|---|---|---|---|---|---|
| 202501/01/2025 – 31/12/2025 | 36.9 mio. | 6.3 mio. | 361 mio. | 334.8 mio. | 0 | |
| 202401/01/2024 – 31/12/2024 | 37.3 mio. | 32 mio. | 345.2 mio. | 328.6 mio. | - | |
| 202301/01/2023 – 31/12/2023 | 30.8 mio. | 5 mio. | 310.7 mio. | 296.6 mio. | - | |
| 202201/01/2022 – 31/12/2022 | 29 mio. | -14.7 mio. | 342.3 mio. | 331.6 mio. | 0 | |
| 202101/01/2021 – 31/12/2021 | 27.1 mio. | 17.9 mio. | 393.9 mio. | 381.2 mio. | 1 | |
| 202001/01/2020 – 31/12/2020 | 25.5 mio. | 692 t. | 371.7 mio. | 363.4 mio. | 1 | |
| 201901/01/2019 – 31/12/2019 | 23.8 mio. | 5.4 mio. | 367.3 mio. | 362.7 mio. | 1 | |
| 201801/01/2018 – 31/12/2018 | 22.7 mio. | 17.2 mio. | 360.6 mio. | 357.3 mio. | 1 | |
| 201701/01/2017 – 31/12/2017 | 21.7 mio. | 4.3 mio. | 345.5 mio. | 340.1 mio. | 1 | |
| 201601/01/2016 – 31/12/2016 | 31.5 mio. | 976 t. | 339.8 mio. | 335.7 mio. | - | |
| 201501/01/2015 – 31/12/2015 | 57.3 mio. | -32.1 mio. | 338.3 mio. | 334.9 mio. | - | |
| 201401/01/2014 – 31/12/2014 | 52.2 mio. | 1.1 mio. | 344.8 mio. | 29.6 mio. | - | |
| 201301/01/2013 – 31/12/2013 | 47.1 mio. | -7.5 mio. | 324 mio. | 46.7 mio. | - | |
| 201201/01/2012 – 31/12/2012 | 44.4 mio. | -502 t. | 277.9 mio. | 42.9 mio. | - |
Compared to 122 companies in Levering af fastnetbaseret, trådløs og satellitbaseret telekommunikation
Comparison is based on industry median values
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See the API documentationThe CVR number of SEF FIBER A/S is 27652328.
SEF FIBER A/S is owned by Sinal Infrastruktur A/S and SEF A/S.
The management of SEF FIBER A/S consists of Henning Rask.
The board of SEF FIBER A/S consists of Lars Peder Foged, Carsten Bryder Thejls and Jakob Horstmann, with Lars Peder Foged as chair.
In 2025, SEF FIBER A/S reported revenue of DKK 36,920,823.
SEF FIBER A/S had an average of 0 employees in the 2025 financial year according to the annual report.
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Contact info changed: new phone: 62212771, new email: [email protected] (September 9, 2026).
As of September 1, 2026, Cedra Godkendt Revisionsaktieselskab has been appointed auditor of SEF FIBER A/S.
As of September 1, 2026, DELOITTE STATSAUTORISERET REVISIONSPARTNERSELSKAB has stepped down as auditor of SEF FIBER A/S.
Contact info changed: new phone: 62212771, new email: [email protected] (June 29, 2026).
As of June 25, 2026, Rasmus Thomsen Ingstrup has joined the board of directors of SEF FIBER A/S.
As of June 25, 2026, Jakob Horstmann has joined the board of directors of SEF FIBER A/S.
Contact info changed: new phone: 62212771, new email: [email protected] (May 20, 2026).
Contact info changed: new phone: 62212771, new email: [email protected] (May 19, 2026).
As of May 7, 2026, Torben Per Jensen has left the board of directors of SEF FIBER A/S.
SEF FIBER A/S has published its annual report for 2025. Revenue came to DKK 36,920,823, and the net result was DKK 6,260,894.
Contact info changed: new phone: 62212771, new email: [email protected] (April 6, 2026).
As of March 25, 2026, Henning Rask is registered as director of SEF FIBER A/S.
As of March 25, 2026, Claus Holm Andersen has stepped down as adm. dir. of SEF FIBER A/S.
Contact info changed: new phone: 62212771, new email: [email protected] (February 12, 2026).
Contact info changed: new phone: 62212771, new email: [email protected] (February 9, 2026).
As of January 31, 2026, Jens Christian Lundholt has left the board of directors of SEF FIBER A/S.
SEF FIBER A/S has published its annual report for 2024. Revenue came to DKK 37,308,237, and the net result was DKK 31,983,721.
As of April 24, 2025, Torben Per Jensen has joined the board of directors of SEF FIBER A/S.
As of April 24, 2025, Jens Christian Lundholt has joined the board of directors of SEF FIBER A/S.
As of April 24, 2025, Lars Skovgaard Hansen has left the board of directors of SEF FIBER A/S.
As of April 24, 2025, Søren Henrik Bøving-Andersen has left the board of directors of SEF FIBER A/S.
As of April 24, 2025, Johnny Hansen has left the board of directors of SEF FIBER A/S.
As of April 24, 2025, Mette Lykke Bak has left the board of directors of SEF FIBER A/S.
SEF FIBER A/S has published its annual report for 2023. Revenue came to DKK 30,846,646, and the net result was DKK 5,018,262.
As of April 25, 2024, Lars Skovgaard Hansen has joined the board of directors of SEF FIBER A/S.
As of April 25, 2024, Søren Henrik Bøving-Andersen has joined the board of directors of SEF FIBER A/S.
As of April 25, 2024, Carsten Bryder Thejls has joined the board of directors of SEF FIBER A/S.
As of April 25, 2024, Torben Poulsen has left the board of directors of SEF FIBER A/S.
As of April 25, 2024, Morten Buch has left the board of directors of SEF FIBER A/S.
As of April 24, 2024, Lars Skovgaard Hansen has left the board of directors of SEF FIBER A/S.
As of September 7, 2023, Johnny Hansen has joined the board of directors of SEF FIBER A/S.
As of September 7, 2023, Mette Lykke Bak has joined the board of directors of SEF FIBER A/S.
As of September 7, 2023, Jan Ladefoged has left the board of directors of SEF FIBER A/S.
As of September 6, 2023, Mette Lykke Bak has left the board of directors of SEF FIBER A/S.
SEF FIBER A/S has published its annual report for 2022. Revenue came to DKK 29,018,000, and the net result was DKK -14,665,000.
As of February 3, 2023, Lars Peder Foged has joined the board of directors of SEF FIBER A/S.
As of February 3, 2023, Lars Skovgaard Hansen has joined the board of directors of SEF FIBER A/S.
As of February 3, 2023, Jan Ladefoged has joined the board of directors of SEF FIBER A/S.
As of February 3, 2023, Morten Buch has joined the board of directors of SEF FIBER A/S.
As of February 3, 2023, Mette Lykke Bak has joined the board of directors of SEF FIBER A/S.
As of February 3, 2023, Tom Bak has left the board of directors of SEF FIBER A/S.
As of February 3, 2023, Helle Damm-Henrichsen has left the board of directors of SEF FIBER A/S.
As of February 3, 2023, Anders Jørgen Banke has left the board of directors of SEF FIBER A/S.
As of February 3, 2023, Jakob Horstmann has left the board of directors of SEF FIBER A/S.
As of February 3, 2023, Brian Egeberg Eskildsen has left the board of directors of SEF FIBER A/S.
As of February 2, 2023, Lars Peder Foged has left the board of directors of SEF FIBER A/S.
As of February 2, 2023, Morten Buch has left the board of directors of SEF FIBER A/S.
As of February 2, 2023, Mette Lykke Bak has left the board of directors of SEF FIBER A/S.
As of May 30, 2022, Torben Poulsen has joined the board of directors of SEF FIBER A/S.
As of May 30, 2022, Kristian Olaf Plet Freiesleben has left the board of directors of SEF FIBER A/S.
As of May 29, 2022, Torben Poulsen has left the board of directors of SEF FIBER A/S.
SEF FIBER A/S has published its annual report for 2021. Revenue came to DKK 27,074,000, and the net result was DKK 17,870,000.
As of March 24, 2022, Helle Damm-Henrichsen has joined the board of directors of SEF FIBER A/S.
As of March 24, 2022, Brian Egeberg Eskildsen has joined the board of directors of SEF FIBER A/S.
As of March 24, 2022, Per Svendsen has left the board of directors of SEF FIBER A/S.
As of March 23, 2022, Helle Damm-Henrichsen has left the board of directors of SEF FIBER A/S.
SEF FIBER A/S has published its annual report for 2020. Revenue came to DKK 25,459,000, and the net result was DKK 692,000.
SEF FIBER A/S has published its annual report for 2019. Revenue came to DKK 23,788,000, and the net result was DKK 5,385,000.
As of April 25, 2019, Torben Poulsen has joined the board of directors of SEF FIBER A/S.
As of April 25, 2019, Kristian Olaf Plet Freiesleben has joined the board of directors of SEF FIBER A/S.
As of April 25, 2019, Christian Ruhe has left the board of directors of SEF FIBER A/S.
SEF FIBER A/S has published its annual report for 2018. Revenue came to DKK 22,667,000, and the net result was DKK 17,230,000.
As of March 28, 2019, Lars Peder Foged has joined the board of directors of SEF FIBER A/S.
As of March 28, 2019, Helle Damm-Henrichsen has joined the board of directors of SEF FIBER A/S.
As of March 28, 2019, Jakob Horstmann has joined the board of directors of SEF FIBER A/S.
As of March 28, 2019, Morten Buch has joined the board of directors of SEF FIBER A/S.
As of March 28, 2019, Mette Lykke Bak has joined the board of directors of SEF FIBER A/S.
SEF FIBER A/S has published its annual report for 2017. Revenue came to DKK 21,685,000, and the net result was DKK 4,349,000.
SEF FIBER A/S has published its annual report for 2016. Revenue came to DKK 31,547,000, and the net result was DKK 976,000.
SEF FIBER A/S has published its annual report for 2015. Revenue came to DKK 57,324,000, and the net result was DKK -32,148,000.
As of January 12, 2016, Tom Bak has joined the board of directors of SEF FIBER A/S.
As of January 12, 2016, Per Svendsen has joined the board of directors of SEF FIBER A/S.
As of January 12, 2016, Anders Jørgen Banke has joined the board of directors of SEF FIBER A/S.
As of January 12, 2016, Christian Ruhe has joined the board of directors of SEF FIBER A/S.
As of January 12, 2016, Lars Peder Foged has left the board of directors of SEF FIBER A/S.
As of January 12, 2016, Jesper Ullemose has left the board of directors of SEF FIBER A/S.
As of January 12, 2016, Stina Løndahl Henriksen has left the board of directors of SEF FIBER A/S.
As of January 12, 2016, Hans Erik Musak Pedersen has left the board of directors of SEF FIBER A/S.
As of January 12, 2016, Søren Henrik Bøving-Andersen has left the board of directors of SEF FIBER A/S.
As of January 12, 2016, Knud Bundgaard Clemmensen has left the board of directors of SEF FIBER A/S.
As of January 12, 2016, Villiam Egon Hansen has left the board of directors of SEF FIBER A/S.
As of January 12, 2016, Lars Friis Jørgensen has left the board of directors of SEF FIBER A/S.
As of January 12, 2016, Jacob Brixtofte Hagn-Meincke has left the board of directors of SEF FIBER A/S.
As of January 12, 2016, Jørgen Kastalag Magnussen has left the board of directors of SEF FIBER A/S.
As of January 12, 2016, Claus Holm Andersen is registered as adm. dir. of SEF FIBER A/S.
As of January 12, 2016, Anders Jørgen Banke has stepped down as director of SEF FIBER A/S.
As of January 12, 2016, Sinal Infrastruktur A/S is registered as an owner of SEF FIBER A/S with an ownership share of 25%.
As of January 12, 2016, SEF A/S is registered as an owner of SEF FIBER A/S with an ownership share of 66%.
SEF FIBER A/S has published its annual report for 2014. Revenue came to DKK 52,161,000, and the net result was DKK 1,105,000.
On March 26, 2015, the company changed its name from SYDFYNS INTRANET A/S to SEF FIBER A/S.
As of November 27, 2014, Jørgen Kastalag Magnussen has joined the board of directors of SEF FIBER A/S.
As of November 27, 2014, Kirsten Sohnesen has left the board of directors of SEF FIBER A/S.
As of May 22, 2014, Lars Peder Foged has joined the board of directors of SEF FIBER A/S.
As of May 22, 2014, Jesper Ullemose has joined the board of directors of SEF FIBER A/S.
As of May 22, 2014, Stina Løndahl Henriksen has joined the board of directors of SEF FIBER A/S.
As of May 22, 2014, Søren Henrik Bøving-Andersen has joined the board of directors of SEF FIBER A/S.
As of May 22, 2014, Villiam Egon Hansen has joined the board of directors of SEF FIBER A/S.
As of May 22, 2014, Lars Friis Jørgensen has joined the board of directors of SEF FIBER A/S.
As of May 22, 2014, Jacob Brixtofte Hagn-Meincke has joined the board of directors of SEF FIBER A/S.
As of May 22, 2014, Kirsten Sohnesen has joined the board of directors of SEF FIBER A/S.
As of May 22, 2014, Jesper Ullemose has left the board of directors of SEF FIBER A/S.
As of May 22, 2014, Torben Birger Nielsen has left the board of directors of SEF FIBER A/S.
As of May 22, 2014, Torben Per Jensen has left the board of directors of SEF FIBER A/S.
As of May 22, 2014, Guri Anette Krøis has left the board of directors of SEF FIBER A/S.
SEF FIBER A/S has published its annual report for 2013. Revenue came to DKK 47,093,000, and the net result was DKK -7,549,000.
As of April 29, 2013, DELOITTE STATSAUTORISERET REVISIONSPARTNERSELSKAB has been appointed auditor of SEF FIBER A/S.
As of April 29, 2013, EY Godkendt Revisionspartnerselskab has stepped down as auditor of SEF FIBER A/S.
SEF FIBER A/S has published its annual report for 2012. Revenue came to DKK 44,427,000, and the net result was DKK -502,000.
As of April 22, 2010, Jesper Ullemose has joined the board of directors of SEF FIBER A/S.
As of April 22, 2010, Hans Erik Musak Pedersen has joined the board of directors of SEF FIBER A/S.
As of April 22, 2010, Torben Birger Nielsen has joined the board of directors of SEF FIBER A/S.
As of April 22, 2010, Torben Per Jensen has joined the board of directors of SEF FIBER A/S.
As of April 22, 2010, Jeppe Ottosen has left the board of directors of SEF FIBER A/S.
As of April 22, 2010, Poul Anders Kromann has left the board of directors of SEF FIBER A/S.
As of April 22, 2010, Morten Steen Petersen has left the board of directors of SEF FIBER A/S.
As of April 22, 2010, Flemming Jensen has left the board of directors of SEF FIBER A/S.
As of March 13, 2008, EY Godkendt Revisionspartnerselskab has been appointed auditor of SEF FIBER A/S.
As of March 13, 2008, EY Godkendt Revisionspartnerselskab has stepped down as auditor of SEF FIBER A/S.
As of April 26, 2007, Jeppe Ottosen has joined the board of directors of SEF FIBER A/S.
As of April 26, 2007, Morten Steen Petersen has joined the board of directors of SEF FIBER A/S.
As of April 26, 2007, Erik Ullemose has left the board of directors of SEF FIBER A/S.
As of April 26, 2007, Flemming Ejde Nielsen has left the board of directors of SEF FIBER A/S.
As of April 26, 2007, Ulla Birgit Larsen has left the board of directors of SEF FIBER A/S.
As of May 2, 2006, Anders Jørgen Banke is registered as director of SEF FIBER A/S.
As of May 2, 2006, Aksel Pedersen has stepped down as director of SEF FIBER A/S.
As of March 9, 2006, Per Dalgaard Jensen has left the board of directors of SEF FIBER A/S.
As of March 9, 2006, Jacob Tjørntved Davidsen has left the board of directors of SEF FIBER A/S.
As of April 6, 2004, Erik Ullemose has joined the board of directors of SEF FIBER A/S.
As of March 11, 2004, EY Godkendt Revisionspartnerselskab has been appointed auditor of SEF FIBER A/S.
As of March 11, 2004, Flemming Ejde Nielsen has joined the board of directors of SEF FIBER A/S.
As of March 11, 2004, Poul Anders Kromann has joined the board of directors of SEF FIBER A/S.
As of March 11, 2004, Flemming Jensen has joined the board of directors of SEF FIBER A/S.
As of March 11, 2004, Guri Anette Krøis has joined the board of directors of SEF FIBER A/S.
As of March 11, 2004, Per Dalgaard Jensen has joined the board of directors of SEF FIBER A/S.
As of March 11, 2004, Jacob Tjørntved Davidsen has joined the board of directors of SEF FIBER A/S.
As of March 11, 2004, Ulla Birgit Larsen has joined the board of directors of SEF FIBER A/S.
As of March 11, 2004, Knud Bundgaard Clemmensen has joined the board of directors of SEF FIBER A/S.
As of March 11, 2004, Aksel Pedersen is registered as director of SEF FIBER A/S.
SEF FIBER A/S was founded on March 11, 2004.
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