3RIVERS Incorporated
Business profileC corporationLinked registrations
Public business information with links to supporting state records. Data as of October 16, 2026.
Business profile
- Legal business name
- 3RIVERS Incorporated
- Alternative and DBA names
- Group Main Stream Inc.
- Entity type
- C corporation
- Original incorporation date
- April 28, 1980
- Time in business
- 46 years and 5 months
- Jurisdiction count
- 2
All known addresses
1280 PO Box, Westbrook, ME 04098
Listed in Maine
15 Saunders Way Ste 500G, Westbrook, ME 04092
Listed in New Hampshire
Registered states
View linked public registration records.
Source: public state registration records. Missing values are not a negative finding.