O'Shea Builders — Ransomware Incident Claimed by Medusa Ransomware
- Victim: O'Shea Builders
- Claimed by Medusa Ransomware
- Date claimed: 2025-03-29
- Country: US
- Sector: Construction
O'Shea Builders (founded in 1902) is a commercial construction-services provider in Illinois with offices in Springfield and Peoria. O'Shea Builders provide general contracting, construction management, design build, civil and building maintenance services. O'Shea Builders corporate office is located in 3401 Constitution Dr, Springfield, Illinois, 62711, United States and has 137 employees.