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Ransomware group thegentlemen hits Corswarem Group
Corswarem Group — a not found target operating in BE has been listed by the thegentlemen ransomware group on 2026-09-29. The information below reflects what the threat actor has publicly claimed on their leak site; the details have not been independently verified.
Incident Report
| Target Organization | Corswarem Group |
|---|---|
| Threat Group | thegentlemen |
| Summary | corswarem.eu Corswarem Group (founded 1957, Tongeren, Belgium) is a family-owned manufacturer and installer of aluminium windows, doors, curtain-wall facades, terraces and solar panels, with 65+ years of expertise and 18–20 employees across five legal entities (Ramenconstructie Corswarem NV as the main operating company, plus Alu Design, Window Creations, Solar Solutions and holding Groep ADC BV with €18M in assets). It is a Schüco Premium Partner (30+ years exclusive) and Renson Ambassador, delivering full turnkey projects from design through production to installation — landmark works include BASF Antwerpen, Posthofbrug Berchem (17,000 m² offices), DronePort Brustem, CM Limburg HQ and the first ASE 80 HI DesignLine installation in Belgium. Led by the Corswarem family (Dirk, An, Jolien), the group booked a gross margin of €5.3M at its 2023 peak but saw profit fall 64% in 2025 to €691K amid Belgium's construction slowdown — though equity rose 44% and debt dropped 30%. |
| Date of Breach | 2026-09-29 |
| Discovery Date | 2026-09-30 |
| Region | BE |
| Target Domain | corswarem.eu |
| Business Sector | Not Found |
| Severity | MEDIUM |
Claim by thegentlemen
corswarem.eu Corswarem Group (founded 1957, Tongeren, Belgium) is a family-owned manufacturer and installer of aluminium windows, doors, curtain-wall facades, terraces and solar panels, with 65+ years of expertise and 18–20 employees across five legal entities (Ramenconstructie Corswarem NV as the main operating company, plus Alu Design, Window Creations, Solar Solutions and holding Groep ADC BV with €18M in assets). It is a Schüco Premium Partner (30+ years exclusive) and Renson Ambassador, delivering full turnkey projects from design through production to installation — landmark works include BASF Antwerpen, Posthofbrug Berchem (17,000 m² offices), DronePort Brustem, CM Limburg HQ and the first ASE 80 HI DesignLine installation in Belgium. Led by the Corswarem family (Dirk, An, Jolien), the group booked a gross margin of €5.3M at its 2023 peak but saw profit fall 64% in 2025 to €691K amid Belgium's construction slowdown — though equity rose 44% and debt dropped 30%.
Posted by the thegentlemen threat actor on its public leak site. This is the group's own statement and has not been independently verified by HackerFeeds.
Sources
Disclaimer
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