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Listed on a ransomware leak site

Groupe AC Environnement

ac-environnement.com

Groupe AC Environnement was listed on the The Gentlemen leak site on Oct 26, 2026. Information as of Oct 29, 2026.

Country: FranceIndustry: Construction
Updated continuously · figures as of Oct 29, 2026
Claimed by
The Gentlemen
First listed
Oct 26, 2026
Claims recorded
1

Leak-Site Claim.

The GentlemenConfirmed claim
Posted on the leak site
Oct 26, 2026
Collected by Brandefense
Oct 27, 2026
Data claimed
Not stated
Leak-site post text, written by the group
ac-environnement.com Groupe AC Environnement is a French environmental engineering company founded in 1997 in Pontarlier, delivering integrated solutions for water treatment, wastewater, waste management and bioremediation. With 160 employees across five subsidiaries including GEG, Maraîch'Hydro and Biovéa, it has completed over 120 projects in 13 countries. Its standout project is the STEP des Voraces, France's first large-scale wastewater plant featuring demethanization serving 300,000 equivalent inhabitants. The group offers 26 specialized technical solutions spanning drinking water…

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Figures as of Oct 29, 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.