Klein Marine Systems Inc
Klein Marine Systems Inc is a small business in Newburyport, MA registered on SAM.gov to bid on federal contracts. It has won about $55,745 in federal prime contracts since fiscal year 2024, according to USAspending.gov's award records for its UEI.
- UEI
- UMUGWX4Z1G37
- CAGE code
- 52315
- SAM.gov registration
- Active
Federal contract history
| Fiscal year | Obligated, prime contracts |
|---|---|
| FY2025 | $10,300 |
| FY2026 (incomplete) | $45,445 |
FY2026 is still incomplete and will rise until about early January 2027 as Defense data arrives: USAspending.gov publishes Defense contracts 90 days after they're signed.
These are every prime contract USAspending.gov records under UEI UMUGWX4Z1G37, from its award search. For a company that is part of a parent company, USAspending's recipient page can show a different figure for a year, because it counts the company's own record and its parent's record separately.
Its biggest federal customers since fiscal year 2024: National Oceanic and Atmospheric Administration ($45,445) and Department of the Navy ($10,300).
Recent contract awards
New contracts, by the date each was first signed. Orders and changes to older contracts count in the yearly totals above but aren't listed here, and Defense awards appear 90 days after signing.
| Awarded | Agency | What it's for | Obligated |
|---|---|---|---|
| Sep 4, 2026 | National Oceanic and Atmospheric Administration | Provide side scan winch klein cable replacement to the NOAA ship thomas jefferson. | $45,445 |
| Sep 18, 2025 | Department of the Navy | Repair and maintenance support | $10,300 |
| Nov 3, 2022 | National Oceanic and Atmospheric Administration | Provide testing, inspection, repair of towed array | $13,965 |
| Oct 12, 2022 | Defense Logistics Agency | Dummy connector, plu | $243 |
| Sep 23, 2022 | Department of the Navy | Fabricating side scan equipment | $229,850 |
| Sep 21, 2022 | Department of the Navy | Repair/testing sonar systems | $36,337 |
Figures are prime contract obligations reported to USAspending.gov. Subcontract work is listed separately below.
Subcontract work reported by primes
Prime contractors reported 2 subcontracts to it worth about $1.6 million in the last five years, according to USAspending.gov. Primes only have to report subcontracts of $40,000 or more (since October 1, 2025; $30,000 before that), so smaller jobs are missing. Amounts are net of any cuts primes reported. None of this is in the prime contract figures.
| Prime contractor | For | Subcontracts | Amount | Latest |
|---|---|---|---|---|
| Atlantic Diving Supply, Inc. | Defense Logistics Agency | 1 | $1.5 million | May 12, 2022 |
| Lockheed Martin Corporation | U.S. Special Operations Command | 1 | $36,022 | Feb 9, 2023 |
Registration details
Show registration details
From SAM.gov's monthly public file dated Nov 1, 2026. If the business has updated its registration since, SAM.gov shows the newer details.
| Legal business name | Klein Marine Systems Inc |
|---|---|
| Unique Entity ID (UEI) | UMUGWX4Z1G37 |
| CAGE code | 52315 |
| Location | Newburyport, MA |
| SAM.gov registration | Active through Jun 11, 2027 |
| Business started | 1969 |
| Primary NAICS code | 334511: Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing |
| Website | www.kleinmarinesystems.com |
| How to contact | Through its website above. No phone or email in SAM.gov's public file. Search UEI UMUGWX4Z1G37 in SBA's Small Business Search for a contact the business added. |
Certifications and business types
No SBA certification (8(a), HUBZone or WOSB) in SAM.gov's public file (Nov 1, 2026).
SBA certifications let a business compete for set-aside contracts (set-asides explained). Check the current record on its SAM.gov entry.
How to check or correct this record
The file sometimes leaves a certification out, and a newer one won't be in it yet.
Check or correct this record at the source: open its SAM.gov entry, or search UEI UMUGWX4Z1G37 () in SAM.gov's entity search (free sign-in) and in SBA's Small Business Search (formerly DSBS), which shows SBA certifications. The business can update its details in its SAM.gov registration and its certifications at certifications.sba.gov.
NAICS codes Klein Marine Systems Inc is small under
On its SAM.gov registration, Klein Marine Systems Inc meets the SBA size standard for these industries, so it can bid on small business set-asides that use them.
Open contracts in Klein Marine Systems Inc's NAICS codes
83 open federal opportunities on SAM.gov use one of Klein Marine Systems Inc's NAICS codes and may be open to it: no set-aside, or, in the codes it is registered small under, a small business set-aside. Here are a few, those in its primary code first, then those in Massachusetts, then the soonest due.
- B-52 APQ-166 Magnetron/Electron Tube
Due in 23 daysNov 30, 2026, 3:30 PM EST
- Viewer, Night Vision, in Repair/Modification of
✦ NAVSUP Weapon Systems Support wants a contractor to repair a night vision viewer (NSN 5855-01-590-1553, P/N 720200-04-01) and return it to ready-for-issue condition, using OEM…
Due in 2 daysNov 9, 2026, 2:00 PM UTC-4
- Computer, Flight Con, in Repair/Modification of
✦ The Navy's NAVSUP Weapon Systems Support wants a contractor to repair and test a Flight Control Computer (Rockwell Collins drawing 822-1604-102) and return it to ready-for-issue…
Due in 2 daysNov 9, 2026, 4:30 PM UTC-4
- Data Display Group, in Repair/Modification of
✦ The Navy (NAVSUP Weapon Systems Support) wants 18 Data Display Group units (NSN 7RH 6610 014956002 V2) repaired and returned to Ready for Issue condition.
Due in 2 daysNov 9, 2026, 4:30 PM UTC-4
- Cap
✦ The Navy's NAVSUP Weapon Systems Support office in Mechanicsburg wants a part called CAP made to drawing 2526608 (commercial and government entity (CAGE) code 10001), for use on…
Due in 2 daysNov 9, 2026, 4:30 PM EST
Similar small businesses
Other small businesses of a similar size with the same primary NAICS code (334511) that have won federal contracts in Massachusetts:
- 908 Devices Inc, Burlington, MA
- Igo Paul, East Sandwich, MA
- Kraken Robotics US Inc, Boston, MA
- Prosensing Inc., Amherst, MA
- Cast Navigation, LLC, Tewksbury, MA
- DSA Detection LLC, North Andover, MA
Is this your business? Get a reminder before the SAM.gov registration expires
Get a reminder before the SAM.gov registration expires. It's active through Jun 11, 2027. We'll email you 60, 30 and 7 days ahead, and if it lapses.
Frequently asked questions
What is Klein Marine Systems Inc's CAGE code?
Klein Marine Systems Inc's CAGE code is 52315. The Defense Logistics Agency assigns CAGE codes when a business registers on SAM.gov.
What is Klein Marine Systems Inc's UEI?
Klein Marine Systems Inc's Unique Entity ID (UEI) is UMUGWX4Z1G37. SAM.gov assigns the UEI, and it identifies the business across the federal government.
Is Klein Marine Systems Inc's SAM.gov registration active?
Yes, as of SAM.gov's public data from Nov 1, 2026, Klein Marine Systems Inc's registration is active through Jun 11, 2027. Registrations are renewed every year.
Is Klein Marine Systems Inc a small business?
Klein Marine Systems Inc is registered on SAM.gov as small under 3 NAICS codes, including its primary code, 334511. Size is set per NAICS code, so a business can be small for some contracts and not others.
Keep going
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- How to become a government subcontractor
- Hiring subcontractors? List small businesses by state, NAICS code and certification
Registration details come from SAM.gov's public entity extract and contract figures from USAspending.gov. Contact names and street addresses are left out. To change these details, update the registration on SAM.gov. To report a mistake on this page, or to ask us to remove it, email hello@fedready.us with the page address; we reply within 2 business days. For a removal, write from an address at the company.