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Listed on a ransomware leak site

Sheyenne Tooling & Manufacturing

sheyennemfg.com

Sheyenne Tooling & Manufacturing was listed on the Sarcoma leak site on Jan 10, 2025. Information as of Oct 19, 2026.

Country: United StatesIndustry: Unknown
Updated continuously · figures as of Oct 19, 2026
Claimed by
Sarcoma
First listed
Jan 10, 2025
Claims recorded
1

Leak-Site Claim.

SarcomaConfirmed claim
Posted on the leak site
Jan 10, 2025
Collected by Brandefense
Jul 12, 2025
Data claimed
Not stated
Leak-site post text, written by the group
Sheyenne Tooling & Manufacturing Sheyenne Tooling & Manufacturing of Cooperstown, North Dakota was founded in 1977 with the goal of becoming a highly regarded regional tool and die manufacturer. Since then, the family owned business has established a reputation as a precision component manufacturer for some of the biggest names in American agriculture including Bobcat, John Deere and CNH. Our Tele-Boom, Tele-Fork, Double Quick Tach Grapple and the rest of our short line of unique and innovative skidsteer attachments are designed and built to meet our customers high quality and performance…

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Other confirmed victims claimed by the same group
VictimClaimed byCountryIndustryData claimedPosted
victim
victimsupport.org.uk
SarcomaGBUnited KingdomNon-profit and Civil SocietyNot stated
GYF
gyf.com.ar
SarcomaARArgentinaTechnologyNot stated
Propane Levac Inc.
propanelevac.ca
SarcomaCACanadaEnergy and UtilitiesNot stated
MecMatica
mecmatica.it
SarcomaITItalyTechnologyNot stated
Söllner
bedachungen-soellner.de
SarcomaDEGermanyUnknownNot stated
B&J Rocket Sales
bj-rocket.com
SarcomaCHSwitzerlandUnknownNot 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.