Limestone Manufacturing LLC
Somerset, KY
- UEI
- DB45X9E4DVF5
- CAGE
- 9G8Z3
- Primary NAICS
- 332710 Machine Shops
- SAM.gov registration
- Active through
Company facts
- FY2025 rankings
- SBA certifications
-
HUBZone Firm· Current
- Self-certified in SAM.gov
- Entity structure
- Corporate Entity (Not Tax Exempt)
- Other NAICS codes in SAM.gov
-
- 331210 Iron and Steel Pipe and Tube Manufacturing from Purchased Steel
- 331221 Rolled Steel Shape Manufacturing
- 331315 Aluminum Sheet, Plate, and Foil Manufacturing
- 332312 Fabricated Structural Metal Manufacturing
- 332313 Plate Work Manufacturing
- 332322 Sheet Metal Work Manufacturing
- 332323 Ornamental and Architectural Metal Work Manufacturing
- 332431 Metal Can Manufacturing
Show all 43
- 332439 Other Metal Container Manufacturing
- 332510 Hardware Manufacturing
- 332618 Other Fabricated Wire Product Manufacturing
- 332721 Precision Turned Product Manufacturing
- 332722 Bolt, Nut, Screw, Rivet, and Washer Manufacturing
- 332811 Metal Heat Treating
- 332812 Metal Coating, Engraving (except Jewelry and Silverware), and Allied Services to Manufacturers
- 332813 Electroplating, Plating, Polishing, Anodizing, and Coloring
- 332996 Fabricated Pipe and Pipe Fitting Manufacturing
- 332999 All Other Miscellaneous Fabricated Metal Product Manufacturing
- 333111 Farm Machinery and Equipment Manufacturing
- 333112 Lawn and Garden Tractor and Home Lawn and Garden Equipment Manufacturing
- 333120 Construction Machinery Manufacturing
- 333131 Mining Machinery and Equipment Manufacturing
- 333132 Oil and Gas Field Machinery and Equipment Manufacturing
- 333241 Food Product Machinery Manufacturing
- 333242 Semiconductor Machinery Manufacturing
- 333248 All Other Industrial Machinery Manufacturing
- 333310 Commercial and Service Industry Machinery Manufacturing
- 333511 Industrial Mold Manufacturing
- 333514 Special Die and Tool, Die Set, Jig, and Fixture Manufacturing
- 333515 Cutting Tool and Machine Tool Accessory Manufacturing
- 333517 Machine Tool Manufacturing
- 333519 Rolling Mill and Other Metalworking Machinery Manufacturing
- 333612 Speed Changer, Industrial High-Speed Drive, and Gear Manufacturing
- 333922 Conveyor and Conveying Equipment Manufacturing
- 333998 All Other Miscellaneous General Purpose Machinery Manufacturing
- 336370 Motor Vehicle Metal Stamping
- 336390 Other Motor Vehicle Parts Manufacturing
- 336411 Aircraft Manufacturing
- 336414 Guided Missile and Space Vehicle Manufacturing
- 336415 Guided Missile and Space Vehicle Propulsion Unit and Propulsion Unit Parts Manufacturing
- 336991 Motorcycle, Bicycle, and Parts Manufacturing
- 336992 Military Armored Vehicle, Tank, and Tank Component Manufacturing
- 336999 All Other Transportation Equipment Manufacturing
- SAM.gov registration date
- Physical address
- 6691 KY-39, Somerset, KY 42503, USA
- Website
- limestonemfg.net
- Industry
-
- Industrials
- Capital Goods
- Industrial Conglomerates
- Industrials & Manufacturing
- SIC code
- 35 Industrial Machinery & Equipment
- 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 | $256,500 |
| FY2025 | $230,359 |
| FY2024 | $321,347 |
Top agencies by obligations
| Rank | Agency | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | Department of the Navy | $202,500 | |
| 2 | Department of the Army | $54,000 |
Contract awards
Latest 5 listed here. See the rest on GovTribe.
Contract subawards
| Prime contractor | Prime award | Amount | Awarded |
|---|---|---|---|
| Consolidated Nuclear Security, LLC | DENA0001942 | $35,528 | |
| Consolidated Nuclear Security, LLC | DENA0001942 | $34,450 |
Similar vendors
| Vendor | Location | Primary NAICS |
|---|---|---|
| Virginia Highlands Machining Inc. | Abingdon, VA | 332710 Machine Shops |
| Southern Indiana Steel Inc. | Loogootee, IN | 332322 Sheet Metal Work Manufacturing |
| Delflo Industries, Inc. | Delray Beach, FL | 332710 Machine Shops |
| Winchester Tool, LLC | Winchester, VA | 332710 Machine Shops |
| 3 J Inc. | Wellington, CO | 332710 Machine Shops |
About the company
Limestone Manufacturing LLC, an SBA-certified HUBZone small business based in Somerset, Kentucky, manufactures precision-machined metal components and specialized materials handling equipment for the Department of the Navy, the Department of the Army, and the Department of the Air Force, predominantly as a prime contractor (71% of recent awards) under Total Small Business set-asides. The company is a for-profit limited liability corporation operating in machine shops and precision metal fabrication (NAICS 332710 and related), with demonstrated capability in complex mechanical components for defense applications fabricated from structural steel, aluminum, PEEK polymer, and stainless steel to strict tolerance and surface finish specifications.
Limestone's customer concentration reflects Navy-heavy exposure. The Department of the Navy Naval Sea Systems Command accounts for two awards totaling $348 thousand in combined potential value (the largest single customer), followed by the Naval Air Warfare Center with a $229 thousand engine inlet bellmouth assembly upgrade, the Army Materiel Command Joint Munitions Command with $197 thousand for drogue plate manufacturing, and the Army Materiel Command Research, Development and Engineering Command with $39 thousand for rocket hold-down motor components. The Air Force Air Education and Training Command holds two awards without disclosed dollar values. All five customer agencies are represented across the seven-award recent portfolio, with no single vehicle or parent contract underpinning the awards.
Recent prime work includes a $202.5 thousand purchase order from Naval Sea Systems Command (March 2026) for three units of USV cradles fabricated from A572 Grade 50 structural steel with EPDM rubber and galvanization; a $228.5 thousand Total Small Business purchase order from Naval Air Warfare Center (September 2024) for engine inlet bellmouth assembly upgrade; a $196.8 thousand Total Small Business definitive contract from Joint Munitions Command (September 2024) to manufacture 19,600 drogue plates (81mm) and 15 sample plates for the Pine Bluff Arsenal M2510 end item; and a $145.2 thousand firm fixed-price purchase order from Naval Sea Systems Command (September 2025) for Special Support Equipment machined parts for mission-critical test equipment. Activity peaked in 2024 (five awards) and has slowed to one award per year in 2025 and 2026. One award, valued at approximately $203 thousand, reaches completion in the next twenty-four months, creating recompete exposure. Limestone also serves as a subcontractor to Consolidated Nuclear Security LLC on incremental funding for the Y-12 National Security Complex and Pantex Plant management and operating contract.
SBA capabilities narrative
Limestone Manufacturing is a small business that provides custom CNC machining and fabrication for many nationwide automotive, food service, firearms, and other manufacturing facilities. These capabilities include CNC milling, CNC turning, CNC Wire EDM, CNC laser and plasma cutting, CNC bending, MIG and TIG welding, 3D Printing, and 3D and 2D CAD Design.
Quick answers
Is Limestone Manufacturing LLC registered in SAM.gov?
Yes. Limestone Manufacturing LLC's SAM.gov registration is active through March 16, 2027.
Which SBA certifications does Limestone Manufacturing LLC hold?
Limestone Manufacturing LLC holds HUBZone Firm certification from the SBA.
How much has Limestone Manufacturing LLC received in federal contracts?
Federal contracts obligated $230,359 to Limestone Manufacturing LLC in fiscal year 2025 and $808,206 in fiscal years 2023 through 2027.
How does Limestone Manufacturing LLC rank among federal contractors?
Limestone Manufacturing LLC ranked #20 in NAICS 332313 in FY2025.
What is Limestone Manufacturing LLC's most recent federal award?
Limestone Manufacturing LLC's most recent federal contract award is The purpose of this requirement is for the delivery of replaceable tracks for the submerged traveling screen (STS)… (W9127N26PA055), from ENDIST Portland (USACE), on June 5, 2026.
On GovTribe
See Limestone Manufacturing LLC's full federal record
- Federal contract awards
- IDV awards
- Subcontracting relationships
- Funding analysis by agency, NAICS and set-aside
- Similar vendors