Subcontracting opportunities: NAICS 488310, Port and Harbor Operations
3 prime contractors held small business subcontracting plans on 3 federal port and harbor operations contracts (NAICS 488310) in FY2022–FY2024, worth $23M 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
- 3
- Plan contracts
- 3
- Agencies
- 2
- Total value
- $23M
A free account shows the primes that subcontract 488310 work in your state and the small businesses they hire. Without one, pick your state under Where the work is to see the primes with 488310 plan work there. The “Small business based in” filter on the subcontracts goes by where the small business is, not where the work is.
Primes with subcontracting plans in 488310
Most plan contracts first.
| Prime contractor | Plan contracts | Value | Main agency |
|---|---|---|---|
| US Facilities IncPhiladelphia, PA | 1 | $20.6M | Department of the Army |
| Seabulk Logistics Services LLCFort Lauderdale, FL | 1 | $1.4M | Department of the Navy |
| Seabulk Towing, Inc.Fort Lauderdale, FL | 1 | $1M | Department of the Navy |
Most large primes have no profile here: find them on their own websites, where they post supplier portals and small business liaison contacts.
Recent subcontracts to small businesses
Of the 18 most recent subcontracts primes reported under NAICS 488310, dated Oct 14, 2025 to Aug 18, 2026, 9 went to small businesses, worth $816K. The table shows all of them, from Aug 18, 2026 back to Nov 5, 2025.
Primes report subcontracts to USAspending.gov months late, so the newest report we read is from Aug 18, 2026. USAspending files each subcontract under its prime contract's NAICS code, not the subcontractor's own work, so some of these jobs look unrelated to 488310.
The state is where the small business is based, not where the work is. To find primes near you, search primes and partners by state (free account).
| Date | Small business | Prime | Amount |
|---|---|---|---|
| Aug 18, 2026 | CNC Machine and Fabrication, Inc.UT | Oceanetics IncDepartment of the Navy | $216K |
| Aug 15, 2026 | Huntington Steel & Supply CoWV | Oceanetics IncDepartment of the Navy | $36.6K |
| Aug 7, 2026 | Orion Ropeworks, LLCME | Oceanetics IncDepartment of the Navy | $40.9K |
| Aug 7, 2026 | Marine Fenders International IncCA | Oceanetics IncDepartment of the Navy | $58.3K |
| Aug 7, 2026 | Marine Fenders International IncCA | Oceanetics IncDepartment of the Navy | $117K |
| Aug 6, 2026 | Anchor Marine & Industrial Supply IncTX | Oceanetics IncDepartment of the Navy | $97.1K |
| Jul 12, 2026 | St. Johns Boat CompanyFL | Oceanetics IncDepartment of the Navy | $52.6K |
| Apr 13, 2026 | Anchor Marine & Industrial Supply IncTX | Oceanetics IncDepartment of the Navy | $123K |
| Nov 5, 2025 | Orion Ropeworks, LLCME | Oceanetics IncDepartment of the Navy | $74.2K |
Small businesses winning these subcontracts
Counted across all 9 subcontracts to small businesses in these reports, not only the rows in the table above.
- Anchor Marine & Industrial Supply Inc, TX: 2 subcontracts, $220K
- Marine Fenders International Inc, CA: 2 subcontracts, $175K
- Orion Ropeworks, LLC, ME: 2 subcontracts, $115K
- CNC Machine and Fabrication, Inc., UT: 1 subcontract, $216K
- St. Johns Boat Company, FL: 1 subcontract, $52.6K
- Huntington Steel & Supply Co, WV: 1 subcontract, $36.6K
Which agencies
| Agency | Plan contracts | Value |
|---|---|---|
| Department of the Navy | 2 | $2.4M |
| Department of the Army | 1 | $20.6M |
Where the work is
Where the primes' plan contracts are performed: Florida (1), Virginia (1), New Jersey (1).
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 488310'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 488310: 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, veteran-owned 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 488310 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: under FAR 52.204-10, primes report first-tier subcontracts of $40,000 or more (since October 1, 2025; $30,000 before that). 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.