The sinobi ransomware group listed L S GRIM on its data leak site on 2025-12-18. Country: US Sector: Other Domains named: lsgrim.com Claim as published on the leak site: L.S. Grim Consulting Engineers is a Mid-Atlantic-based engineering services corporation specializing in mechanical, electrical, and plumbing engineering design and consulting. They offer a variety of services including electrical systems, fire protection, and project management, all designed to meet code requirements and support LEED certification. With over 30 years of experience, their team focuses on quality control and effective project management to ensure client satisfaction. Their intended clients include organizations needing comprehensive engineering solutions and facilities management.