The Mare Island Company

What The Mare Island Company does

The Mare Island Company is the privately-held real-estate stewardship and development entity (legally The Nimitz Group, LLC, Tennessee-domiciled) for Mare Island, a 5,000-acre former U.S. Naval shipyard in Vallejo, California, decommissioned in 1996 and listed on the National Register of Historic Places in 1999. Founded in 2022 by the island's landowners (Nimitz Group) together with Southern Land Company as managers and co-developers, the company leases a multi-tenant portfolio of office, retail, industrial, and residential properties on the island — including converted historic Navy Officer's Quarters, named commercial buildings (e.g., Buildings 112, 253, 459, 678, 1310, 575 Connolly), and short-term event venues such as Morton Field — to a mix of commercial tenants, residential tenants, and industrial/manufacturing users. Revenue is generated through subscription-style multi-year commercial and residential leases, hourly/daily event rentals, and long-term managed development services, with named tenants spanning a 100,000 sq ft automotive-restomod manufacturer (Kindred Motorworks), distilleries (Redwood Empire Whiskey), breweries (Mare Island Brewing Co.), wineries, makers/art studios, and construction-technology startups (Bedrock Robotics).

The company's go-to-market combines direct-to-tenant outreach with community engagement: direct property leasing through [email protected], a digital brochure for advanced-manufacturing opportunities, a Lennar partnership for residential development (with Lennar holding first right of refusal on Coral Sea Village's 96 pre-approved single-family lots), and event-driven marketing through flagship community events such as the Mare Island Half Marathon (~1,000 participants), Pista Sa Nayon, the Dock of Bay Music Festival, and Light Night. Distribution relies on a regional, direct-sales model supported by a multi-channel presence including the company website, email newsletter, social media (Facebook, Instagram, LinkedIn), and regional media coverage.

Underlying technology centers on master-planned urban development and historic property revitalization, executed by an HOK-led Specific Plan team that includes Sasaki, BCV Architects, Einwiller Kuehl, and Fehr & Peers (transportation), with regulatory collaboration through the City of Vallejo under an existing Development Agreement and Disposition and Development Agreement. A Draft Specific Plan submitted October 2024 targets completion in Spring 2027, with the Environmental Impact Report expected in Summer 2027, governing the phased development of roughly 800 acres for housing, hospitality, entertainment, and business uses. The company is pursuing additional partnerships with WETA (ferry transit), the National Park Service (largest historic-vessel fleet on the West Coast), and the Mare Island Historic Park Foundation to broaden the island's economic and tourism surface.

Name

The Mare Island Company

Legal name

The Nimitz Group, LLC

Website

https://mareislandco.com

Company type

Private

Founded year

2022

Operating status

Operating

Short description

The Mare Island Company is the privately-held developer (The Nimitz Group, LLC) stewarding Mare Island, a 5,000-acre former Naval shipyard in Vallejo, California. It leases commercial, industrial, residential, and event spaces to tenants while pursuing phased mixed-use development across approximately 800 acres through an HOK-led Specific Plan.

Ownership category

akta.pro rank

Product category

Commercial Real Estate Development and Leasing

NAICS

Lessors of Nonresidential Buildings (except Miniwarehouses) (531120), Rental and Leasing Services (532)

SIC

Operators Of Nonresidential Buildings (6512), Operators Of Apartment Buildings (6513)

akta.pro primary industry

Private Islands & Exclusive-Use Compounds (THAMAEAF)

Keywords

• Commercial real estate leasing
• Historic property redevelopment
• Master-planned community development
• Industrial space leasing
• Mixed-use real estate

Headquarters

HQ city

Vallejo

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Operations, Infrastructure, Personnel, Marketing or Sales, Technology or R&D

Revenue model

1. Commercial Real Estate Leasing: The company generates revenue by leasing office, retail, industrial, and residential spaces on Mare Island. They maintain a portfolio of commercial listings including Buildings 112, 253, 459, 678, 1310 and various residential quarters.
2. Event Venue and Short-term Rentals: Morton Field is available for short-term rental uses, hourly or daily. The company also hosts and curates events on the island including festivals, concerts, and community gatherings.
3. Development and Construction: Long-term revenue generation through phased development of approximately 800 acres of the 5,000-acre island, including mixed-use community with housing, entertainment, hospitality, and business opportunities.

Pricing tiers

Go-to-market motion2 records

Distribution channels4 records

Marketing channels6 records

Core offering

The Mare Island Company leases office, retail, industrial, and residential spaces on Mare Island in Vallejo, California, including historic Navy Officer's Quarters and former shipyard buildings with unique industrial amenities (overhead cranes, oversized roll-up doors, exceptional natural light). The company also offers short-term event rentals (Morton Field) and is undertaking phased mixed-use development of approximately 800 acres of the 5,000-acre island, including 96 single-family homes (Coral Sea Village) and plans for housing, hospitality, entertainment, and business space.

Product overview

The Mare Island Company offers a diverse real estate portfolio focused on revitalizing the historic Mare Island Naval Shipyard in Vallejo, California. Their core offerings include commercial leasing of office, retail, and industrial spaces, residential properties in historic Navy Officer's Quarters, and short-term rental options like Morton Field for events. The company provides unique industrial facilities with overhead cranes and oversized roll-up doors, office spaces in multi-tenant settings, and residential units combining historic architecture with modern convenience. Advanced manufacturing opportunities are also promoted through digital brochures. The company serves as a catalyst for community development, assembling nature, people, and innovative industry as neighbors.

Differentiator

Problem solved

Functional benefit

Products and services

• Commercial Real Estate Leasing

Quantifiable outcome

• Coral Sea Village approved for 96 single-family homes
• +2 more outcomes

Named customers7 records

Segments4 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Partnerships

15 partnerships are on record, tiered core, major and minor.

• LennarcoreStrategic or Co-development Partner · 23 September 2025Lennar holds first right of refusal for Coral Sea Village residential development under the purchase agreement with Nimitz. Lennar has confirmed it will move forward with development of 96 single-family home lots that already have recorded map, new infrastructure, and prior approval.
• Southern Land CompanycoreStrategic or Co-development Partner · 14 December 2020Southern Land Company serves as managers and developers of the island alongside Nimitz Group. They have been involved in North Mare Island development, community workshops, and the overall Specific Plan process since at least 2020.
• SasakicoreTechnology or IntegrationSasaki is an architectural and urban planning firm working with Mare Island Company on the Specific Plan development. Introduced to the community in April 2021.
• HOKcoreTechnology or IntegrationHOK leads the team developing the new Mare Island Specific Plan, working alongside BCV Architects and Einwiller Kuehl.
• BCV ArchitectsmajorTechnology or IntegrationBCV Architects is working with Mare Island Company on Connolly Street development as part of the Specific Plan team.
• Einwiller KuehlmajorTechnology or IntegrationEinwiller Kuehl is working with Mare Island Company on Connolly Street development as part of the Specific Plan team.
• Fehr & PeersmajorImplementation/ SI/ Consulting PartnerFehr & Peers serves as transportation consultant for Mare Island development, addressing traffic impacts, pedestrian safety, and car-lite transportation options as part of the Specific Plan and CEQA process.
• Water Emergency Transit Authority (WETA)majorStrategic or Co-development PartnerWETA provides existing ferry service to Mare Island. Mare Island Company is working with WETA on strategies for boosting ferry service to and from the island and integrating with other transit providers.
• National Park Service (NPS)majorStrategic or Co-development PartnerNPS is relocating five historic vessels (largest fleet of historic vessels on the West Coast) from Hyde Street Pier in San Francisco to Mare Island while the pier is replaced. Partnership includes development of plans for public viewing and educational access to the ships.
• Mare Island Historic Park FoundationmajorStrategic or Co-development PartnerPartnership with the Foundation for historic preservation efforts. The Foundation operates the Mare Island Historic Park and hosts events including Open Mare Island self-guided walking tours.
• Philippine Cultural Committee of VallejominorStrategic or Co-development PartnerHosts the annual Pista Sa Nayon festival celebrating Filipino culture and traditions at Mare Island Coal Sheds.
• Vallejo Chamber of CommerceminorGTM or Marketing PartnerMare Island Company participates in Vallejo Chamber of Commerce events and State of Business meetings.
• Frazier Trager PresentsminorGTM or Marketing PartnerProduces Dock of Bay Music Festival and other events on Mare Island, including performances at Vino Godfather Winery and other venues.
• City of VallejocoreStrategic or Co-development PartnerCity of Vallejo is a key partner in Mare Island development, with a Development Agreement (DA) and Disposition and Development Agreement (DDA) for North Mare Island. City officials participate in community meetings and approve development plans.
• Touro UniversityminorOthersTouro University's Lander Hall is located in the historic Mare Island Navy Hospital building.

Scale indicators5 records

Recent moves6 records

Expansion highlights6 records

Regional players

• Douglas Emmett: West LA / Honolulu owner-operator of office and multifamily properties with mixed-use campuses. Comparable in the commercial leasing and residential operations of an established portfolio, though without the master-planned ground-up development mandate.
• Shea Properties: California-focused mixed-use developer (Town & Country, Central Park, Riverpark). Comparable in California master-planned mixed-use execution at smaller scale, with similar mix of residential, retail, and office leasing.

Broad incumbents

• Brookfield Property Group: Global real estate owner/developer spanning office, retail, multifamily, logistics, and mixed-use. Comparable in commercial leasing scale and long-term hold-and-develop strategy; broader and more diversified than a single-asset developer.
• Forest City Realty Trust (now Brookfield Properties): Long-tenured mixed-use developer with adaptive-reuse and large-scale urban redevelopment experience (Pike Outlets, Atlantic Yards, Cityline). Comparable on the adaptive-reuse and large mixed-use dimensions; broader portfolio across geographies.
• Related Companies: Large-scale national developer of mixed-use projects (Hudson Yards, The Grand LA). Comparable in mixed-use scope and public-private partnership approach, though typically at higher-density urban infill rather than island-wide master planning.

Direct peers

• Five Point Holdings: Master-planned community developer behind Great Park in Irvine, CA — a former MCAS El Toro redevelopment of comparable scale and mixed-use scope. Both companies own/control very large parcels undergoing phased multi-decade build-out with residential, commercial, and civic components.
• Lennar Corporation: One of the largest US homebuilders and a Mare Island Company partner via Coral Sea Village. Lennar develops master-planned residential communities and is the credit-worthy counterparty validating Mare Island's first residential phase.
• The Howard Hughes Corporation: Owner/developer of master-planned communities including The Woodlands and Summerlin. Both companies operate as long-horizon land developers building mixed-use towns from a single large asset base with active commercial leasing alongside residential development.
• Catellus Development Corporation: Redeveloped former military and rail yards (notably Hunter's Point Shipyard in San Francisco and Alameda Point) into mixed-use communities. Catellus's track record of converting decommissioned Naval facilities into entitled residential/commercial product is the closest direct precedent for Mare Island.

Emerging players

• Trademark Property Company: Mixed-use developer specializing in adaptive reuse and mixed-use town centers (Legacy West, Hulen Mall redevelopment). Comparable in the historic/adaptive-reuse angle and mixed-use execution at smaller scale.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks7 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/mareislandco
• LinkedInlinkedin.com/company/mareislandco/about
• Instagraminstagram.com/mareislandcompany

Revenue estimate

Valuation estimate

Number of profiles

Subsidiaries1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about The Mare Island Company