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Listed on a ransomware leak site

KIER.CO.UK

kier.co.uk

KIER.CO.UK was listed on the Clop leak site on Nov 7, 2025. Information as of Oct 19, 2026.

Country: United KingdomIndustry: Unknown
Updated continuously · figures as of Oct 19, 2026
Claimed by
Clop
First listed
Nov 7, 2025
Claims recorded
1

Leak-Site Claim.

ClopConfirmed claim
Posted on the leak site
Nov 7, 2025
Collected by Brandefense
Nov 7, 2025
Data claimed
Not stated
Leak-site post text, written by the group
KIER.CO.UK is a leading construction, property, and residential and infrastructure company in the UK. It operates across a range of sectors including defence, transportation, health, education, and utilities. The company offers services such as construction and civil engineering, maintenance and refurbishment. It is responsible for many landmark projects and also aims to make a positive difference in the areas it operates.

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Other confirmed victims claimed by the same group
VictimClaimed byCountryIndustryData claimedPosted
ALDOGROUP.COM(ALDOSHOES.COM)
aldogroup.com
ClopCACanadaRetailNot stated
SUUNTO.CN(SUUNTO.COM)
suunto.cn
ClopFIFinlandTechnologyNot stated
SMAPCENTER-UAH.EDU
smapcenter-uah.edu
ClopESSpainEducation and ResearchNot stated
DAD-CO.TH
dad-co.th
ClopTHThailandUnknownNot stated
CLOUD-CLEARWAYGROUP.COM
cloud-clearwaygroup.com
ClopUnknownUnknownNot stated
HODERO-HOLDINGS-LTDClopCACanadaUnknownNot 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.