The akira ransomware group listed Chastain & Associates on its data leak site on 2025-12-09. Country: US Sector: Professional Services Domains named: chastainengineers.com Claim as published on the leak site: Chastain is a professional consulting firm providing land surveyi ng, land planning and development, civil, water/wastewater, const ruction, structural engineering, and urban planning services. We are ready to upload more than 90gb of corporate data. HR files , detailed financials, confidential files, agreements and contrac ts, project, NDAs, etc.