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Listed on a ransomware leak site

Mark Thomas

Mark Thomas was listed on the Lynx leak site on Oct 30, 2024. Information as of Oct 19, 2026.

Country: United StatesIndustry: Unknown
Updated continuously · figures as of Oct 19, 2026
Claimed by
Lynx
First listed
Oct 30, 2024
Claims recorded
1

Leak-Site Claim.

LynxConfirmed claim
Posted on the leak site
Oct 30, 2024
Collected by Brandefense
Jul 11, 2025
Data claimed
Not stated
Leak-site post text, written by the group
Founded in 1927, Mark Thomas & Company have provided land surveying, engineering, urban design, and landscape architectural services that have set the stage for countless California roadways, structures, bicycle/pedestrian facilities, parks, communities, and flood control and utility systems. Mark Thomas is headquartered in San Jose, California.

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Other confirmed victims claimed by the same group
VictimClaimed byCountryIndustryData claimedPosted
cutlercapital
cutlercapital.com
LynxUSUnited StatesFinancial ServicesNot stated
talbotdes.org
talbotdes.org
LynxUSUnited StatesEducation and ResearchNot stated
jerryleigh.com
jerryleigh.com
LynxUSUnited StatesEducation and ResearchNot stated
eastersealsia.org
eastersealsia.org
LynxUSUnited StatesHealthcareNot stated
someco.com
someco.com
LynxUSUnited StatesUnknownNot stated
wolfconstruction.net
wolfconstruction.net
LynxUSUnited StatesConstructionNot 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.