MatTek

MatTek was compromised in a ransomware attack attributed to THEGENTLEMEN in July 2026. The organization, operating in the Manufacturing sector in United States, was added to the group's data leak site as part of an extortion campaign.

THEGENTLEMEN operates as a financially motivated ransomware-as-a-service (RaaS) operation, exfiltrating sensitive data and threatening public disclosure to pressure victims into paying ransom demands.

mattek.com zoominfo.com/c/mattek-corp/109184324 MatTek Corporation is a pioneering biotechnology company founded in 1985 and headquartered in Ashland, Massachusetts, specializing in the development of innovative in vitro 3D reconstructed human tissue models. They produce advanced microtissues and cell culture products that are widely used by researchers to accelerate drug development, conduct toxicity testing, and replace traditional animal testing. Originally an independent leader in tissue engineering, the company was recently acquired by the global life science supplier Sartorius and now operates as a key part of their advanced biological models portfolio