Best Ship Repair and Management Services Companies in United States
The 316 best Ship Repair and Management Services companies in United States in 2026, ranked by funding and momentum. Funding, investors, founders, valuation, tech stack and live signals. Top: Philly Shipyard.
Among the 316 Ship Repair and Management Services companies we track across the United States, funding is concentrated at the top in a way that tells you almost everything about where the sector stands right now. Philly Shipyard anchors the whole picture at $150M in disclosed equity, which accounts for the overwhelming majority of the $172M total across all tracked firms. After that, the drop is steep. Mississippi Department of Marine Resources sits at $10M, Oasis Marinas and Vesselrepair each at $3M, and Green Yachts and Windward Marina in the low six figures. No unicorns here. So the honest read is a sector with one heavily capitalized institutional player and a long tail of smaller operators still running lean.
What does that mean if you're trying to find a partner or benchmark a deal? It means the middle of this market is genuinely thin. Investors like Access Holdings and AV Capital are active, and federal backers including the National Oceanic and Atmospheric Administration and the U.S. Department of Transportation have put money to work, which signals the sector carries real strategic weight beyond pure commercial return. I'd watch that federal funding thread closely. Infrastructure-tied marine services don't move on hype cycles, they move on contract windows and regulatory priorities, and right now those windows are open.
Ranked: Best Ship Repair and Management Services companies in United States
| # | Company | Disclosed funding | Last round | Stage | Founder | Founded | Tech stack | Patents & IP focus | Recent signals |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Philly Shipyard Provider of ship repair and maintenance services | $150M | 120 mo ago | Acquired | Steinar Nerbovik CEO & President | 1997 | — | — | — |
| 2 | Mississippi Department of Marine Resources MDMR is a governing agency that enhances, protects, and conserves marine resources and waterfront areas. | $10M | 153 mo ago | Funding Raised | — | 1994 | — | — | — |
| 3 | Oasis Marinas Marina management services provider | $3M | 59 mo ago | Seed | Dan Cowens Co-Founder & CEO | 2014 | — | — | — |
| 4 | Vesselrepair Provider of marine vessel repair and new ship construction services | $3M | 73 mo ago | Funding Raised | — | 1998 | MODXPHPYouTube+13 | — | — |
| 5 | Unitechsubsea Manufacturer of subsea stab connectors for critical applications | $2M | 69 mo ago | Funding Raised | — | 2010 | — | — | — |
| 6 | HII Provider of military shipbuilding and management services | $1M | 171 mo ago | Public | Christopher Kastner CEO | 2011 | WordPressMySQLPHP+19 | — | — |
| 7 | Cetacean Marine Offers operations and maintenance of vessels | $850K | 149 mo ago | Early Stage | Harry Rogers CEO & President | 1999 | — | — | — |
| 8 | Windward Marina Provider of marina management services | $650K | 44 mo ago | Seed | Stefan Johansson Founder | 2019 | — | — | — |
| 9 | Repela Provider of antifouling paints and marine coating technology services | $450K | 70 mo ago | Funding Raised | Sheu Gallagher Co-Founder | 2019 | — | — | — |
| 10 | Green Yachts Provider of electric-powered boats to drive marine electrification and reduce carbon emissions | $250K | 24 mo ago | Seed | Graham Balch CEO | 2019 | — | — | — |
| 11 | Voltic Provider of solar powered cargo ships and maintenance services | $125K | 45 mo ago | Seed | Hudson Hooper Co-Founder | 2022 | — | — | — |
Top 12 Ship Repair and Management Services companies in United States
#1
Seed · San Rafael, California · founded 2019$250Kraised▾
Green Yachts is a company dedicated to driving marine electrification forward to reduce carbon emissions and transform the sector for vessel operators. They offer electric sailboats and support the electric boating community through sales, servicing, and advocacy for electric-powered boats.
- May 2024Seed$250K
#2
Acquired · Philadelphia, Pennsylvania · founded 1997 · 1744 employees$150.5Mraised▾
Philly Shipyard, Inc. is a leading U.S. shipbuilder engaged in commercial and government projects. They offer a 39-month competency program for candidates with little to no experience to become multi-skilled employees.
- May 2016Conventional Debt$150M
- Sep 2009Grant (prize money)$465.6K
#3
Seed · St. Augustine, Florida · founded 2019$650Kraised▾
Provider of marina management services
- Oct 2022Seed$650K
#4
Seed · Baltimore, Maryland · founded 2014 · 138 employees$2.9Mraised▾
Oasis Marina is a provider of management services for marinas in & around the Chesapeake Bay area. Offers services for facility management & maintenance, boat dock repair & remodeling, marine construction, fuel docks, and more.
- Jul 2021Seed—
- Aug 2020Seed$300K
- Sep 2017Seed$2.6M
- Sep 2016Conventional Debt$2M
#5
Funding Raised · Biloxi, Mississippi · founded 1994 · 114 employees$10.3Mraised▾
The Mississippi Department of Marine Resources (MDMR) is dedicated to enhancing, protecting and conserving the State's marine interests for present and future generations. Created by the legislature as a new state agency in 1994, MDMR manages Mississippi coastal resources through the authority of the Commission on Marine Resources. It manages all marine life, public trust wetlands, adjacent uplands and waterfront areas for the long-term recreational, educational, commercial and economic benefit of these resources consistent with environmental concerns and social changes.
- Sep 2013Grant (prize money)$1.9M
- Dec 2009Grant (prize money)$118.2K
- Dec 2009Grant (prize money)$161.4K
- Jul 2009Grant (prize money)$282.5K
#6
Funding Raised · Houston, Texas · founded 1998 · 46 employees$2.8Mraised▾
Provider of marine vessel repair and new ship construction services. This includes topside repairs, dry dock and graving dock services, and the construction of new tugs and barges. They also specialize in articulated tug barge (ATB) connection systems design, construction, and installation, as well as pump and rotating equipment repairs. Services extend to tank cleaning, gas freeing, inerting, and purging. The company offers rapid response emergency repair capabilities and mobile vessel repair services.
- Apr 2020Grant (prize money)$1.3M
- Sep 2017Grant (prize money)$900K
- Mar 2012Grant (prize money)$610.3K
#7
Funding Raised · United States · founded 2010 · 25 employees$2.3Mraised▾
Manufacturer of subsea stab connectors for critical applications such as wellhead control, gas lift operations, and chemical injection. These connectors are designed for long-term, trouble-free operation in high-pressure, deep-water environments. The design prioritizes safety and incorporates features like metal and double-resilient sealing, replaceable seal cartridges, and compliance with relevant industry standards. Connectors are available in various sizes and pressure ratings to meet diverse subsea needs. The company offers connectors with integrated ball valves.
- Sep 2020Grant (prize money)$2.3M
#8
Seed · Elizabeth, New Jersey · founded 2020$20Kraised▾
Provider of ship repair and maintenance services
#9
Seed · Boston, Massachusetts · founded 2022$125Kraised▾
Provider of solar powered cargo ships and maintenance services
- Sep 2022Seed$500K
#10
Funding Raised · Detroit, Michigan · founded 2019 · 5 employees$450Kraised▾
Developing a high-performing eco-friendly antifouling marine coating intended to match the performance of conventional copper bottom paints but without the toxic consequences. The company uses non-biocide marine coating technology to offer hydrogel coating and custom-engineered primer that resist marine micro and macro-organisms including Ulva zoospores, diatoms, and mussels, enabling customers to get eco-friendly coatings.
- Aug 2020Grant (prize money)$225K
- Feb 2019Grant (prize money)$225K
#11
Public · Newport News, Virginia · founded 2011 · 43000 employees$1.2Mraised▾
In 2022, the company recorded annual revenues of $10.77B and a net profit of $0.57B.
- Mar 2012Grant (prize money)$1.2M
#12
Early Stage · Moorestown, New Jersey · founded 1999$850Kraised▾
Offers operations and maintenance of vessels
- Dec 2013Unattributed$850K
Funding & investor landscape
Notable founders
Market landscape — 10 sub-themes by coverage
Share of Ship Repair and Management Services coverage by sub-theme.
Regulatory-risk over time rising
Funding & growth over time
funding rising · growth rising
How research on Maritime & Shipping Tech is moving in the United States
A read on the academic research around Maritime & Shipping Tech — which themes are gaining ground, the institutions and researchers driving them, and how the tone is shifting. Based on 98 United States-affiliated papers.
- California Maritime Academy8
- Massachusetts Institute of Technology6
- University of Southern California4
- Texas A&M University3
- University of Michigan3
- Automation5
- Propulsion5
- Drivetrain4
- Range (aeronautics)3
- Motion planning3
- Propulsion16
- Automotive engineering9
- Automation7
- Electrically powered spacecraft propulsion6
- Systems engineering5
- Propulsion6
- Marine engineering5
- Automation4
- Aeronautics3
- Range (aeronautics)2
Where maritime tech is researched across United States
Location clusters by institution affiliation — each city's volume, stance tone, and a quick read on its hot topic, what's advancing, the opening opportunity, and the main concern.
Who's filing maritime tech patents in the United States
United States maritime tech patent filing is cooling — 20 filings from 28 assignees (2016–2025), led by X DEV, Google, Poulsen Peder Ulrik; annual filings 5→1.
- X DEV6
- Google5
- Poulsen Peder Ulrik3
- Poulsen Hybrid3
- IBM3
- Ungroup USA2
- Oracle2
- Hewlett Packard Development2
Common questions
Rohit lives in the feed. He covers what's moving right now — the funding rounds, launches and shifts breaking across the trade press — and ties them back to where the sector is heading.