Semper Offshore LLC
Winchester, MA
- UEI
- HJ8BVDGH4LG9
- CAGE
- 8M0H2
- Primary NAICS
- 483113 Coastal and Great Lakes Freight Transportation
- SAM.gov registration
- Active through
Company facts
- Self-certified in SAM.gov
- Entity structure
- Sole Proprietorship
- Other NAICS codes in SAM.gov
-
- 237130 Power and Communication Line and Related Structures Construction
- 237990 Other Heavy and Civil Engineering Construction
- 321114 Wood Preservation
- 483112 Deep Sea Passenger Transportation
- 488310 Port and Harbor Operations
- 488320 Marine Cargo Handling
- 488330 Navigational Services to Shipping
- 488390 Other Support Activities for Water Transportation
- SAM.gov registration date
- Physical address
- 31-33 Clark St, Winchester, MA 01890, USA
- Website
- semperoffshore.com
- Industry
-
- Industrials
- Capital Goods
- Construction & Engineering
- SIC code
- 87 Engineering & Management Services
- Profiles
Registration and certifications come from SAM.gov and the SBA; company details from public web sources. Updated .
Contract obligations by fiscal year
| Fiscal year | Obligated |
|---|---|
| FY2027 To date | $0 |
| FY2026 | $0 |
| FY2025 | $0 |
| FY2024 | -$92,962 |
| FY2023 | $795,781 |
Contract awards
Latest 5 listed here. See the rest on GovTribe.
Contract subawards
| Prime contractor | Prime award | Amount | Awarded |
|---|---|---|---|
| The Johns Hopkins University Applied Physics Laboratory LLC | N0002424F8009 | $393,364 |
Similar vendors
| Vendor | Location | Primary NAICS |
|---|---|---|
| K.B. Fisheries, Inc. | Bend, OR | 114112 Shellfish Fishing |
| Outer Limits Charters Inc. | San Diego, CA | 487210 Scenic and Sightseeing Transportation, Water |
| Towboatus FT. Lauderdale | Pompano Beach, FL | 483114 Coastal and Great Lakes Passenger Transportation |
| Angari Foundation, Inc. | West Palm Beach, FL | 532411 Commercial Air, Rail, and Water Transportation Equipment Rental and Leasing |
| Fish Downsea Charters LLC | Northfield, NJ | 483114 Coastal and Great Lakes Passenger Transportation |
About the company
Semper Offshore LLC is a marine support and offshore marine services company that provides marine construction services, scientific and military research support, and geophysical ROV AUV surveys to the federal government. Their vessels are equipped to perform a wide variety of marine services.
Through prime contract awards, Semper Offshore has provided charter vessel research services, charter vessel services, and vessel charters to the Department of Commerce's National Oceanic and Atmospheric Administration (NOAA). These services have supported research on North Atlantic right whales and sea turtles. The awards have ranged from $98,950 to over $1 million, utilized set asides for small businesses, and featured performance periods from 2020 through 2024. As a subcontractor, Semper Offshore has provided goods and services in support of prime contracts held by General Dynamics Mission Systems.
SBA capabilities narrative
Semper Offshore operates commercial vessels that perform many types of marine services; marine construction, scientific and military research, geophysical survey work. Semper Offshore has extensive experience working with global companies including Orsted, Excelerate Energy, WHOI, Engie, General Dynamics, Raytheon, USGS, Navy-NUWC, Tetra Tech, and JHU-Applied Sciences. Our vessels are operated by the best trained crew available. Each with years of experience on many highly complex projects along the eastern seaboard. We operate under a unique Management System that maintains the highest standards for safety, environment, and quality. Our vessels are outfitted to meet SOLAS standards and are USCG certified. They are also inspected by ABS, OVID, and CMID. Semper is based in Charlestown, MA where we have shore support for dockage, crane service, warehousing, and staging facilities. We have partnered with other shore facilities in MA, Rhode Island, Connecticut, NY, NJ, and Virginia.
Quick answers
Is Semper Offshore LLC registered in SAM.gov?
Yes. Semper Offshore LLC's SAM.gov registration is active through June 18, 2027.
How much has Semper Offshore LLC received in federal contracts?
Federal contracts obligated $702,819 to Semper Offshore LLC in fiscal years 2023 through 2027.
What is Semper Offshore LLC's most recent federal award?
Semper Offshore LLC's most recent federal contract award is Charter vessel research services for 10 days (1305M323PNFFM0266), from National Oceanic and Atmospheric Administration, on May 25, 2023.
On GovTribe
See Semper Offshore LLC's full federal record
- Federal contract awards
- Subcontracting relationships
- Funding analysis by agency, NAICS and set-aside
- Similar vendors