Mare Island Company acquires the dry dock — and bids for a federal shipbuilding designation

The Mare Island Company has acquired Mare Island Dry Dock out of bankruptcy and is positioning the island for large-scale shipbuilding — a commercial play that would dwarf anything currently on the island if it lands.

Why the dry dock was available

Mare Island Dry Dock announced its permanent closure on December 30, 2025, terminating all employees after losing a critical U.S. Coast Guard contract — maintenance of the icebreaker USCG Healy, which went to Vigor Marine in Portland. The company's CEO said 2025 was its slowest year in its 13-year operating history.

The play: control the property

The Mare Island Company stepped in not to run a shipyard but to control the property. Brian Nagy told the Solano Association of Realtors' marketing meeting they're in active talks with potential users from around the world and hope to land a tenant this year — with a campus in the 50–80 acre range and thousands of jobs attached. That's an aspiration, not a signed deal.

The federal tailwind

The backdrop is favorable. The Nimitz Group has teamed up with California Forever to submit a proposal designating portions of land across five counties surrounding the Sacramento–San Joaquin Delta as Maritime Prosperity Zones, part of the administration's plan to revitalize American shipbuilding. Congressman Garamendi has been pushing the SHIPS for America Act, which he expects to reach the president's desk in 2026.

The catch

The same infrastructure problems blocking residential development on the island apply equally here — any large shipbuilding operation would require significant utility investment before breaking ground. But if the federal shipbuilding push is real and a major user commits, Mare Island has the waterfront, the dry docks, and the history to make the case.

Update — June 2026: Vallejo goes all-in on the maritime bet

The story now has a second player: the City of Vallejo itself. In May 2026, the Vallejo City Council heard a formal maritime revival plan and authorized a $210,000 contract with the Roosevelt Group, a defense lobbying firm, to pursue federal maritime investment for the city. The three-pillar strategy: industrial revitalization on Mare Island; a long-term push to restore a Coast Guard or Naval presence in Vallejo; and building a maritime workforce pipeline. Congressman Garamendi's SHIPS for America Act — which he has said he expects to pass in 2026 — is the federal vehicle the city is positioning for. A city-level lobbying contract and a private developer's tenant search are not a signed deal. But Vallejo is no longer waiting on the sidelines.

August 19, 2026: JLL puts the Nimitz Group's maritime campus on the market

On August 19, 2026, JLL announced it has been retained by The Nimitz Group — which owns the maritime industrial portion of Mare Island — to provide strategic advisory and brokerage services for the Mare Island Maritime Campus. The assets being marketed: approximately 350 acres of maritime industrial land, two million square feet of existing buildings, and four operational dry docks. JLL is actively engaging shipbuilders, defense contractors, maritime operators, and institutional investors, pursuing flexible transaction structures including individual asset leases or strategic partnerships. JLL's positioning frames the assignment in terms of federal demand for domestic ship and submarine manufacturing capacity — one of the few West Coast sites with the physical infrastructure to absorb it.

This is a material step forward. The Nimitz Group is no longer fielding informal inquiries — it has hired a major commercial real estate firm to run a formal capital markets process. The same sewer and utility challenges apply to any industrial user, and the sewer repairs beginning in August address only waterfront water infiltration, with larger repairs still unresolved. But the formal marketing of 350 acres and four operational dry docks is the most significant public signal to date that the Nimitz Group is ready to transact.

August 26, 2026: Newsom commits state money to Mare Island maritime future

One week after JLL put the Nimitz Group's assets on the market, Governor Newsom announced approximately $8.2 million in California Jobs First grants for Mare Island maritime development in partnership with Cal Poly Maritime Academy. Speaking on-site at Cal Poly Maritime's campus — part of a $48.5 million statewide California Jobs First grant announcement covering 18 projects — Newsom tied the funding to transforming Mare Island's shipyard infrastructure into an applied research and technology acceleration campus, with additional money for maritime workforce development. Reported by the Daily Republic and the Vallejo Sun on August 26, 2026, this is the first direct state-level investment specifically earmarked for the island's shipbuilding future. It does not put a signed industrial tenant on the island. But it puts state capital, and the governor's name, behind the thesis that Mare Island is where California's maritime revival happens.

My read for clients

For investors, this is the most interesting wildcard on the island. A major employer with thousands of jobs would reshape the entire Vallejo demand picture — and Mare Island values — in a way residential build-out alone wouldn't. The city's formal maritime bet, the JLL marketing process, and now a governor-level grant announcement all add credibility to the thesis. But the fundamentals haven't changed: no signed industrial tenant, unresolved sewer infrastructure, and a federal shipbuilding program still finding its footing. Don't underwrite a Mare Island investment on the shipyard happening — underwrite it on today's reality and treat the shipbuilding upside as a free option. Want to talk through what that means for a specific property? Reach out.