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Listed on a ransomware leak site

GROUPHC

heidelbergmaterials.com

GROUPHC was listed on the BlackBasta leak site on Aug 22, 2023. Information as of Oct 19, 2026.

Updated continuously · figures as of Oct 19, 2026
Claimed by
BlackBasta
First listed
Aug 22, 2023
Claims recorded
1

Leak-Site Claim.

BlackBastaConfirmed claim
Posted on the leak site
Aug 22, 2023
Collected by Brandefense
Jul 12, 2025
Data claimed
Not stated
Leak-site post text, written by the group
*At Heidelberg Materials, we’ve been contributing to progress for 150 years. With more than 51,000 employees at almost 3,000 sites in over 50 countries, we’re one of the world’s largest integrated manufacturers of building materials and solutions with leading market positions in cement, aggregates, and ready-mixed concrete. Our products and services are used in the construction of houses, infrastructure, commercial and industrial facilities. * *At the centre of our actions lies our responsibility for the environment. We’re front runner on the road to carbon neutrality and circular economy in…

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Other confirmed victims in the same industry
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GTL Concreto e Logística LTDA
gtlconcreto.com.br
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americancampus.com
HelixUSUnited StatesConstructionNot stated
POWERsonic Industries Inc.AuroraCACanadaManufacturingNot stated
SMIC US Company (Sunnyvale, CA, US arm of Semiconductor Manufacturing International Corpo...
smics.com
N0nCNChinaManufacturingNot stated
mckenneys
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Pergande
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QilinDEGermanyManufacturingNot stated

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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.