Hamilton Construction Company
ent_5d924e9f25606742784e2e10
Disclosures
3
State AG · 3 jurisdictions
Incidents
1
filings grouped by incident
Max affected reported
2,667
as filed · State AG OR
Leak-site claims
0
none in sample
Identity resolution
- Canonical name
- Hamilton Construction Company
- Normalized
- hamilton construction— dedupe via name-norm; Microsoft / MSFT collapse to one row
- GLEIF LEI
- No match
- SEC EDGAR CIK
- None — not an SEC registrant
- Domain
- None on record
Disclosure history (3)newest first
- 🦫Oregon State AGas victim2025-12-15
Hamilton Construction Company reported a data breach to the Oregon Attorney General. The breach was reported on 2025-12-15. The breach occurred during 6/19/2025 - 6/19/2025. The breach was discovered on 6/19/2025. 2,667 individuals were affected. Notice was sent on 11/12/2025.
- 🦬Montana State AGas victim2025-11-12
Hamilton Construction Company reported a data breach to the Montana Attorney General. The breach was reported on 2025-11-12. The breach occurred from 06/19/2025 to 10/07/2025. 21 Montana residents were affected.
- 🌲Washington State AGas victim2025-11-12
Hamilton Construction Company, a business sector entity reported a ransomware incident to the Washington Attorney General. The organization became aware of the incident on 2025-06-19 and filed notice on 2025-11-12. 610 Washington residents were affected. 146 days elapsed between awareness and notification. 0 days to identify the breach. 0 days to contain the breach.