Supplier
381 Constructors
381 Constructors is a joint venture between Cianbro, TIC and Middlesex Corporation under contract to build the P-381 Multi-Mission Dry Dock at Portsmouth Naval Shipyard in Kittery, Maine.
About 381 Constructors
The company’s supplier materials describe construction packages and subcontracting opportunities for the project. Its role is construction delivery at the shipyard; it does not own or operate the Navy facility.
Capabilities2
| Technology | Role | Maturity | TRL | Notes | Confidence |
|---|---|---|---|---|---|
| Defense services and support | Supplier | — | — | classify_sectors run 37, haiku, taxonomy 2026-10-18b: Joint venture under contract to build the P-381 dry dock at Portsmouth Naval Shipyard, a construction service delivered to the Navy. | Reported |
| Naval vessels and shipbuilding | Supplier | — | — | classify_sectors run 37, haiku, taxonomy 2026-10-18b: Joint venture under contract to build the P-381 dry dock at Portsmouth Naval Shipyard, a construction service delivered to the Navy. | Reported |
- Supplierclassify_sectors run 37, haiku, taxonomy 2026-10-18b: Joint venture under contract to build the P-381 dry dock at Portsmouth Naval Shipyard, a construction service delivered to the Navy.—Reported
- Supplierclassify_sectors run 37, haiku, taxonomy 2026-10-18b: Joint venture under contract to build the P-381 dry dock at Portsmouth Naval Shipyard, a construction service delivered to the Navy.—Reported
Maturity and TRL describe this organization's work; the field-wide maturity is on each technology's page.
Sources3
- 1Company381 Constructors
Supports Organization
- 2
Supports Organization
- 3
Supports Organization
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