Subcontracting opportunities: NAICS 488390, Other Support Activities for Water Transportation
5 prime contractors held small business subcontracting plans on 88 federal other support activities for water transportation contracts (NAICS 488390) in FY2022–FY2024, worth $264M including options. Only primes that aren't small businesses need these plans, and each one sets goals for work the prime gives to small businesses, so these are the companies looking for small subcontractors in this industry.
- Primes with plans
- 5
- Plan contracts
- 88
- Agencies
- 2
- Total value
- $264M
A free account shows the primes that subcontract 488390 work in your state and the small businesses they hire.
Primes with subcontracting plans in 488390
Most plan contracts first. “Recent subcontracts” counts the subcontracts each prime reported among the 36 most recent reports in this code.
| Prime contractor | Plan contracts | Value | Main agencies | Recent subcontracts |
|---|---|---|---|---|
| Global Pcci (GPC)Irvine, CA | 59 | $124M | Department of the Navy | — |
| Donjon Marine Co., Inc.Hillside, NJ | 17 | $113M | Department of the Navy | — |
| Smit Salvage Americas Inc.Houston, TX · part of Koninklijke Boskalis Westminster N.V. | 6 | $17.8M | Department of the Navy | — |
| Systems Application & Technologies IncUpper Marlboro, MD | 4 | $5.9M | Department of the Navy | — |
| HII Fleet Support Group LLCVirginia Beach, VA · part of Huntington Ingalls Industries Inc. | 2 | $3.2M | Department of the Army | 14$1.2M |
Recent subcontracts to small businesses
Of the 36 most recent subcontracts primes reported under NAICS 488390 since Nov 22, 2023, 18 went to small businesses, worth $2.8M.
| Date | Small business | Prime | Amount |
|---|---|---|---|
| Nov 14, 2025 | Virginia Electronic Systems, Inc.VA | Bowhead Marine Support Services, LLCDepartment of the Navy | $257K |
| Nov 7, 2025 | Virginia Electronic Systems, Inc.VA | Bowhead Marine Support Services, LLCDepartment of the Navy | $133K |
| May 22, 2025 | Virginia Electronic Systems, Inc.VA | Bowhead Marine Support Services, LLCDepartment of the Navy | $300K |
| May 15, 2025 | Marine Group Boat Works, LLCCA | Bowhead Marine Support Services, LLCDepartment of the Navy | $47.7K |
| May 15, 2025 | Marine Group Boat Works, LLCCA | Bowhead Marine Support Services, LLCDepartment of the Navy | $47.7K |
| Mar 6, 2025 | Delphinus Engineering, Inc.PA | HII Fleet Support Group LLCDepartment of the Army | $6.2K |
| Feb 7, 2025 | Confluence CorpHI | HII Fleet Support Group LLCDepartment of the Army | $1.7K |
| Jan 15, 2025 | Delphinus Engineering, Inc.PA | HII Fleet Support Group LLCDepartment of the Army | $8.6K |
| Dec 20, 2024 | Chesapeake Marine Refrigeration CorpVA | HII Fleet Support Group LLCDepartment of the Army | $38.9K |
| Sep 16, 2024 | Omega Marine Refrigeration LLCVA | HII Fleet Support Group LLCDepartment of the Army | $49.4K |
| Aug 26, 2024 | Virginia Electronic Systems, Inc.VA | Bowhead Marine Support Services, LLCDepartment of the Navy | $138K |
| Aug 15, 2024 | Wing Inflatables, Inc.CA | Bowhead Marine Support Services, LLCDepartment of the Navy | $40.5K |
| Aug 12, 2024 | GL Power, Inc.OH | Bowhead Marine Support Services, LLCDepartment of the Navy | $1.2M |
| Aug 12, 2024 | Virginia Electronic Systems, Inc.VA | Bowhead Marine Support Services, LLCDepartment of the Navy | $228K |
| Jul 26, 2024 | Atlantic Diving Supply, Inc.VA | Bowhead Marine Support Services, LLCDepartment of the Navy | $105K |
| Jul 23, 2024 | Central Florida Yamaha IncFL | Bowhead Marine Support Services, LLCDepartment of the Navy | $37.1K |
| Jun 6, 2024 | Boyds Parts & Supplies LLCVA | HII Fleet Support Group LLCDepartment of the Army | $33.6K |
| Nov 22, 2023 | The Rowland CompanyPA | HII Fleet Support Group LLCDepartment of the Army | $46.8K |
Small businesses winning these subcontracts
- Virginia Electronic Systems, Inc., VA: 5 subcontracts, $1.1M
- Marine Group Boat Works, LLC, CA: 2 subcontracts, $95.3K
- Delphinus Engineering, Inc., PA: 2 subcontracts, $14.8K
- GL Power, Inc., OH: 1 subcontract, $1.2M
- Atlantic Diving Supply, Inc., VA: 1 subcontract, $105K
- Omega Marine Refrigeration LLC, VA: 1 subcontract, $49.4K
- The Rowland Company, PA: 1 subcontract, $46.8K
- Wing Inflatables, Inc., CA: 1 subcontract, $40.5K
- Chesapeake Marine Refrigeration Corp, VA: 1 subcontract, $38.9K
- Central Florida Yamaha Inc, FL: 1 subcontract, $37.1K
- Boyds Parts & Supplies LLC, VA: 1 subcontract, $33.6K
- Confluence Corp, HI: 1 subcontract, $1.7K
Which agencies
| Agency | Plan contracts | Value |
|---|---|---|
| Department of the Navy | 86 | $260M |
| Department of the Army | 2 | $3.2M |
Where the work is
California (59), New Jersey (17), Texas (6), Virginia (6).
How to win subcontracts with these primes
- Register in the prime's supplier portal. Most large primes have one, usually under “supplier diversity” or “small business programs” on their website. Buyers search it when they need a subcontractor, so list your NAICS codes, certifications and past work.
- Contact the small business liaison officer. Every prime with a plan names someone to run it. Find them through the supplier portal, or for defense primes in DoD's prime contractor directory. Send a one-page capability statement that names the contracts and agencies you can support.
- Watch SBA's SubNet. Primes post subcontracting solicitations and sources sought notices on SubNet.
- Be easy to vet. Keep your SAM.gov registration active and check that you count as small under 488390's size standard. Certifications such as 8(a), HUBZone, WOSB and SDVOSB count toward the prime's goals, which makes you more valuable to them.
- Get free help. APEX Accelerators introduce small businesses to primes and run matchmaking events. Our guide to becoming a government subcontractor covers the rest.
More on 488390: open contracts and top small-business winners. Primes also post subcontracting opportunities on SBA's SubNet.
Frequently asked questions
What is a small business subcontracting plan?
Under FAR 19.702, a large business that wins a federal contract over $900,000 ($2 million for construction) with subcontracting possibilities must agree to a plan with goals for subcontracting to small businesses, including small disadvantaged, women-owned, HUBZone and service-disabled veteran-owned firms. The prime reports its progress twice a year in eSRS. Contracts awarded before October 2025 used the older $750,000 and $1.5 million thresholds.
How do I become a subcontractor to these 488390 primes?
Register in the prime's supplier portal (most large primes have one, often called supplier diversity or small business programs), keep your SAM.gov registration active, and send the prime's small business liaison officer a capability statement that names the contracts and agencies you can support. Primes need small subcontractors to meet their plan goals, so being easy to find and easy to vet matters.
Where does this data come from?
Primes and their plan contracts come from SBA's Directory of Federal Government Prime Contractors with Subcontracting Plans for FY2022–FY2024, which is drawn from FPDS. Recent subcontracts come from the subaward reports primes file on USAspending.gov (most subcontracts over $30,000 on prime contracts over $750,000 must be reported). A subcontractor is shown as a small business when it has an active SAM.gov registration as small under at least one NAICS code, or an SBA certification.
Source: SBA's directory of prime contractors with subcontracting plans (FY2022–FY2024, from FPDS) and USAspending.gov subaward reports. Contact names are never shown. Values are base plus all options, not what has been paid.