The thegentlemen ransomware group listed CommTank on its data leak site on 2026-10-31. Country: SG Sector: Technology Domains named: commtank.com Claim as published on the leak site: commtank.com CommTank Inc is a US storage tank contractor founded in 1997 in Winchester, Massachusetts, specializing in installation, removal, inspection and maintenance of underground and aboveground storage tanks across New England and the Mid-Atlantic. With 50 to 100 employees and estimated revenue of 10 to 25 million dollars, it serves government facilities, hospitals, schools and industrial clients across 8 states. Its services cover the full tank lifecycle including UST and AST installatio