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Listed on a ransomware leak site

Sejlstrup

sejlstrup.dk

Sejlstrup was listed on the The Gentlemen leak site on Feb 27, 2026. Information as of Oct 19, 2026.

Country: DenmarkIndustry: Unknown
Updated continuously · figures as of Oct 19, 2026
Claimed by
The Gentlemen
First listed
Feb 27, 2026
Claims recorded
1

Leak-Site Claim.

The GentlemenConfirmed claim
Posted on the leak site
Feb 27, 2026
Collected by Brandefense
Apr 2, 2026
Data claimed
Not stated
Leak-site post text, written by the group
sejlstrup.dk dnb.com/business-directory/company-profiles.sejlstrup_entreprenørforretning_a-s.f02d652f10fa8eb32e3503df8d0d3eb0.html a major construction and contracting company established in 1991. The company employs 150 people and reported a gross profit of 101.6 million DKK (approx. 13.6 million EUR) in 2023, with excellent profitability ratings. The business is owned by the holding company SEJLSTRUP HOLDING II ApS.

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Figures as of Oct 19, 2026. Confirmed leak-site claims collected by Brandefense technologies and validated by Brandefense analysts.

Listed on a leak site means a ransomware group has claimed the company; it is not a confirmed breach. To request a correction or removal, contact Brandefense.