The sinobi ransomware group listed Grupo JSA on its data leak site on 2025-10-20. Country: ES Sector: Professional Services Domains named: grupojsa.com.br Claim as published on the leak site: Grupo JSA is a company that operates in the Architecture, Engineering & Design industry. It employs 20to49 people and has 5Mto10M of revenue. The company is headquartered in Rio de Janeiro, Rio de Janeiro, Brazil.