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NAICS Code· 333923

NAICS 333923: Overhead Traveling Crane, Hoist, and Monorail System Manufacturing

This U.S. industry comprises establishments primarily engaged in manufacturing overhead traveling cranes, hoists, and monorail systems. Illustrative Examples: Aerial work platforms manufacturing Automobile wrecker (i.e., tow truck) hoists manufacturing Block and tackle manufacturing Metal pulleys (except power transmission) manufacturing Winches manufacturing Cross-References. Establishments primarily engaged in--Show more

NAICS 333923 – Overhead Traveling Crane, Hoist, and Monorail System Manufacturing encompasses the design, fabrication, and assembly of heavy-duty material handling systems used in industrial and military environments. This includes overhead traveling cranes, electric hoists, monorail systems, and associated control mechanisms engineered for precision lifting, precise positioning, and safe load handling in demanding settings such as shipyards, aircraft assembly facilities, ordnance depots, and maintenance hangars.

98
Active Contracts
$121.7M
Total Obligations (12mo)
711
Awarded Contracts (12mo)
267
Contractors Awarded (12mo)
2
Median Bidders per Award
-27.0%
YoY Growth

Industry Spending Overview

Federal obligations, top contractors and agencies, and related industry codes for NAICS 333923.

AI Industry Description

NAICS 333923 – Overhead Traveling Crane, Hoist, and Monorail System Manufacturing encompasses the design, fabrication, and assembly of heavy-duty material handling systems used in industrial and military environments. This includes overhead traveling cranes, electric hoists, monorail systems, and as...

NAICS 333923 – Overhead Traveling Crane, Hoist, and Monorail System Manufacturing encompasses the design, fabrication, and assembly of heavy-duty material handling systems used in industrial and military environments. This includes overhead traveling cranes, electric hoists, monorail systems, and associated control mechanisms engineered for precision lifting, precise positioning, and safe load handling in demanding settings such as shipyards, aircraft assembly facilities, ordnance depots, and maintenance hangars. These systems are critical to logistics, maintenance, and production operations where manual lifting is impractical or unsafe, requiring compliance with stringent federal safety and engineering standards. In government contracting, this NAICS code supports defense infrastructure modernization, naval vessel construction, and aerospace component handling, positioning it as a niche but essential segment within the broader industrial equipment procurement landscape. Top contractors in this sector include ALLOY SLING CHAINS, LLC and TECH O. R., LLC, both specialized manufacturers with deep expertise in engineered lifting solutions. These firms operate as small business suppliers with focused capabilities in custom crane and hoist systems, often serving as subcontractors to larger defense integrators. The competitive landscape is characterized by technical specialization rather than scale, with contractors competing on engineering rigor, certification compliance, and ability to meet military specifications for durability and operational reliability. The Department of Defense is the primary federal buyer, driving demand through naval shipbuilding programs, Air Force maintenance facilities, and Army logistics centers. Procurement is tied to infrastructure upgrades, fleet modernization, and readiness initiatives requiring robust material handling infrastructure capable of operating in high-stress, high-safety environments. The market is concentrated among a small group of technically adept manufacturers with certified engineering capabilities. Opportunities exist for firms with expertise in ANSI/ASME B30 standards, corrosion-resistant materials, and automated control systems. Demand is steady and driven by long-term infrastructure lifecycle needs, favoring contractors with proven track records in defense-compliant manufacturing and rapid response to technical specifications.

Small Business Size Standard

The SBA threshold that decides who can bid NAICS 333923 work as a small business.

1,250 employees
Applies to the whole industry code

The SBA cap for this NAICS (13 CFR 121.201). A business at or under it can self-certify as small for work in this code, which is what makes it eligible for a small-business set-aside. The cap is set per NAICS, so the same company can be small in one code and not in another.

13 CFR 121.201, effective January 1, 2026. The SBA revises the table roughly once a year.

Top Contractors

Companies with the highest total award value under NAICS 333923, ranked by dollars won.

Ranked by total awards
CompanyTotal AwardsContracts
REEL COH INC$14.8M1
MELTON SALES & SERVICE$14.5M2
SUPERIOR-LIDGERWOOD-MUNDY CORP$11.1M1
CANADIAN COMMERCIAL CORPORATION$7.9M2
MI-JACK PRODUCTS, INC.$6.2M3
WELIN LAMBIE LIMITED$5.8M10
METALTEK INTERNATIONAL, INC.$5.6M5
ADVANCED CRANE TECHNOLOGIES LLC$4.8M1
APPLETON MARINE INC$4.6M12
TRIMAN INDUSTRIES INC$3.5M26

Top Agencies

Federal agencies directing the most contract spending toward NAICS 333923.

Department Of Defense586 awards$82.6M
DLA Land Warren2 awards$14.7M
Department Of Homeland Security27 awards$11.9M
W6QK Lad Contr Office1 award$3.1M
DLA Troop Support35 awards$3.0M
Department Of Commerce9 awards$1.2M
FA8126 Afsc Pzimb2 awards$953K
DLA Land And Maritime6 awards$874K
W2SD Endist New York1 award$722K
Navair Warfare Ctr Aircraft Division1 award$490K

Competition

How many companies historically bid on federal awards in NAICS 333923, from bidder counts reported on USAspending.

Fewer Bidders

Median under 3 bidders per reported award. · 19,961 reported awards

Median Bidders

2

Per reported award, all-time

Single-Bid Awards

39%

Share of reported awards with one bidder

10+ Bidder Awards

6%

Share of reported awards with 10+ bidders

Reported Awards

19,961

94% of 21,178 total awards

Bidder Count Distribution by Fiscal Year

Share of reported awards in each bidder-count bracket per federal fiscal year.

How this code compares up the NAICS hierarchy. Parent cohorts pool every code under their prefix, so they are the steadier baseline when a 6-digit sample is thin.

Industry FamilyCompetitionMedian BiddersSingle-BidBidder MixReported Awards
333923This Code
Overhead Traveling Crane, Hoist, and Monorail System Manufacturing
Fewer Bidders239%
19,96194% of 21,178
33392NAICS Industry
Fewer Bidders237%
67,70587% of 78,202
3339Industry Group
Other General Purpose Machinery Manufacturing
Fewer Bidders242%
556,67762% of 898,010
333Subsector
Fewer Bidders245%
1,796,88757% of 3,142,926
33Sector
Manufacturing
Fewer Bidders244%
16,883,00469% of 24,369,785

Bidder counts reported on past federal awards in this NAICS (USAspending). An open opportunity has no bidders yet, so this is the historical norm for similar work, not a fact about this solicitation. Not all awards report bidder counts, and fewer bidders often means incumbent-held work rather than an easier win. Federal reporting of bidder counts fell from ~96% of awards (FY2016) to ~30% (FY2018 onward); the chart shows shares of reported awards, and washed-out stretches mark years with fewer than 30 of them.

Related NAICS Codes

Industries similar to Overhead Traveling Crane, Hoist, and Monorail System Manufacturing, by shared sector, subsector, and industry group.

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333912Same Industry GroupHigh Similarity

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333914Same Industry GroupHigh Similarity

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This U.S. industry comprises establishments primarily engaged in manufacturing elevators and moving ...
333921Same Industry GroupHigh Similarity

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This U.S. industry comprises establishments primarily engaged in manufacturing conveyors and conveyi...
333922Same Industry GroupHigh Similarity

Industrial Truck, Tractor, Trailer, and Stacker Machinery Manufacturing

This U.S. industry comprises establishments primarily engaged in manufacturing industrial trucks, tr...
333924Same Industry GroupHigh Similarity

Power-Driven Handtool Manufacturing

This U.S. industry comprises establishments primarily engaged in manufacturing power-driven (e.g., b...
333991Same Industry GroupHigh Similarity

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NAICS 333923 FAQ

Frequently Asked Questions

NAICS code 333923 covers Overhead Traveling Crane, Hoist, and Monorail System Manufacturing. This U.S. industry comprises establishments primarily engaged in manufacturing overhead traveling cranes, hoists, and monorail systems. Illustrative Examples: Aerial work platforms manufacturing Automobile wrecker (i.e., tow truck) hoists manufacturing Block and tackle manufacturing Metal pulleys (except power transmission) manufacturing Winches manufacturing Cross-References. Establishments primarily engaged in--

Recently Posted in Overhead Traveling Crane, Hoist, and Monorail System Manufacturing

NAICS: 333923
New
DIBBS
CARGO NET, TRAILER
Solicitation # SPE8EE-26-T-2704
Solicitation SPE8EE-26-T-2704 is a Request for Quotations issued by DLA Troop Support, Construction and Equipment Manu and Con for the procurement of 12 trailer cargo nets, identified by NSN 3940-01-494-1543. The requirement is issued under the First Destination Transportation program with a need ship date of March 15, 2027, and an original required delivery date of August 10, 2027. Delivery is set as FOB Destination Other to the DLA Distribution DDSP New Cumberland facility in Pennsylvania. Inspection and acceptance will occur at the destination based on FAR 52.246-1, utilizing zero-based sampling plans such as MIL-STD-1916 or ASQ H1331. The contract contains strict technical data export controls under ITAR and EAR, requiring contractors to have an approved US/Canada Joint Certification Program certification and completed DLA export-control training. Compliance with the Berry Amendment, Buy American Act, and other domestic material restrictions is mandatory. Packaging and palletization must adhere to RP001 and MIL-STD-129 standards. Administrative requirements include the use of the Wide Area WorkFlow system for invoicing and adherence to DFARS 252.204-7012 for safeguarding covered defense information. A price evaluation preference is available for SBA-certified HUBZone small business concerns.
CONSTRUCTION & EQUIPMENT MANU & CON

POSTED

3 days ago

DEADLINE

in 3 days
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NAICS: 333923
Awarded
DIBBS
BLOCK, TACKLE
Solicitation # SPE8EE-26-T-2626
Solicitation SPE8EE-26-T-2626 is a Request for Quotations issued by DLA Troop Support Construction and Equipment for the procurement of 270 units of tackle blocks, identified by NSN 3940-01-728-0554. The requirement is categorized under NAICS code 333923. Delivery is required at the DLA Distribution DDSP New Cumberland facility in Pennsylvania, with a need ship date of March 15, 2027, and an original required delivery date of June 17, 2027. The delivery terms are FOB Origin, and the delivery window is specified as 167 days after the award. Offerors must submit quotes via the DIBBS system by September 28, 2026. A complete data package for both approved and alternate parts is required for technical evaluation, and items produced using additive manufacturing are ineligible for award. The contract mandates compliance with MIL-STD-129 for marking, DLA packaging requirements, and the Hazard Communication Standard for any hazardous materials. Inspection and acceptance will occur at the destination per FAR 52.246-1. Administrative requirements include the use of the Wide Area WorkFlow system for invoicing and adherence to the Buy American Act, the Berry Amendment, and DFARS cybersecurity standards for safeguarding covered defense information.
Defense Logistics Agency

POSTED

3 days ago

DEADLINE

N/A
View Details
NAICS: 333923
Awarded
DIBBS
HOIST, HOOK
Solicitation # SPE8EE-26-T-2620
Solicitation SPE8EE-26-T-2620 is a request for quotations issued by the DLA Troop Support Construction and Equipment office for the procurement of four hook hoists, identified by NSN 3950-01-609-4265. This requirement is designated as a total small business set-aside under NAICS code 333248. The delivery is required by March 21, 2027, with a need ship date of March 15, 2027, to the DLA Distribution San Joaquin facility in Tracy, California. The contract specifies FOB Origin terms, with inspection and acceptance occurring at the destination. The procurement incorporates several critical technical and quality requirements, including DLA packaging requirements RP001 and marking standards per MIL-STD-129. Offerors must comply with the Buy American Act and the Berry Amendment, and any non-domestic materials must be disclosed. Security and safety compliance include safeguarding covered defense information per DFARS 252.204-7012 and labeling hazardous materials according to the Hazard Communication Standard. Payment and receiving reports must be processed electronically through the Wide Area Workflow system. Quotes must be submitted via the DIBBS portal, and any alternate offers require a complete data package for both the approved and alternate parts.
Defense Logistics Agency

POSTED

3 days ago

DEADLINE

N/A
View Details
NAICS: 333923
New
SLED
Electric Chain Hoist - 2 Ton, with Plain Trolley
Solicitation # 645-RFQ-3138-2027
The Iowa Department of Transportation is requesting competitive quotes for the procurement of a 2 Ton Electric Chain Hoist equipped with a plain trolley. This solicitation, identified by number 645-RFQ-3138-2027, is being managed by the agency's transportation office located in Ames, Iowa, with the final equipment to be utilized in Story County. Interested parties must submit their responses by the deadline of October 14, 2026, at 6:00 PM. Primary inquiries regarding this request for quotes should be directed to Tanner Thomsen via the provided contact information.
Transportation

POSTED

4 days ago

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in 2 days
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NAICS: 333923
New
DIBBS
SHEAVES AND FLAG FAIRL
Solicitation # SPE8EE-27-T-0131
CONSTRUCTION & EQUIPMENT MANU & CON

POSTED

4 days ago

DEADLINE

in 7 days
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NAICS: 333923
New
DIBBS
HOIST, WIRE ROPE
Solicitation # SPE8EE-27-T-0123
CONSTRUCTION & EQUIPMENT MANU & CON

POSTED

4 days ago

DEADLINE

in 7 days
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NAICS: 333923
New
DIBBS
SLING, BEAM TYPE
Solicitation # SPE8EE-27-T-0129
CONSTRUCTION & EQUIPMENT MANU & CON

POSTED

4 days ago

DEADLINE

in 7 days
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NAICS: 333923
New
Federal
Certified Lifting Attachments and Rigging GearThis subcontract for the Department of Defense at the Norfolk Naval Shipyard requires the provision of certified lifting hardware and rigging gear. The scope of work includes supplying anchor shackles that meet Federal Specification RR-C-271D, type IVA, and lifting attachments featuring a 5:1 design factor. Additionally, the contractor is responsible for developing detailed rigging sketches that specify load weight, center of gravity, and the capacities of cranes and slings. All provided gear must be certified in accordance with NAVFAC P-307 and accompanied by written proof of testing. The final deliverables consist of the certified hardware and the corresponding rigging diagrams. This opportunity falls under NAICS code 333923 and is intended for prime contractors operating within the shipyard.
Norfolk Naval Shipyard Gf

POSTED

4 days ago

DEADLINE

in about 16 hours
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NAICS: 333923
New
DIBBS
Manufacture and Supply of Multiple Leg Slings (NSN 3940-01-684-8736)This subcontract involves the manufacture and supply of four multiple leg slings under NSN 3940-01-684-8736 for prime contractors supporting DLA Troop Support. The fabrication process must strictly avoid additive manufacturing and maintain full compliance with the Buy American Act and the Berry Amendment. All items must be packaged and marked according to MIL-STD-129 and MIL-STD-2073-1E standards and delivered palletized per DLA requirement RP001 to the performance location in San Diego. To be eligible, the provider must meet rigorous security and regulatory standards, including CMMC Level 2 certification and adherence to ITAR and EAR regulations. The contract falls under NAICS code 333923 and is managed through the Department of Defense. Interested parties must respond by October 19, 2026.
CONSTRUCTION & EQUIPMENT MANU & CON

POSTED

5 days ago

DEADLINE

in 7 days
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NAICS: 333923
New
DIBBS
Eye Sling Supplier (NSN 3940-01-685-0960)This subcontract involves the manufacture or sourcing of eight specialized Eye Slings under NSN 3940-01-685-0960 for prime contractors supporting Department of Defense DLA Troop Support procurement projects. The supplier must adhere strictly to the DLA Master List technical requirements and ensure full compliance with the Buy American Act and the Berry Amendment. All items must be packaged and marked according to MIL-STD-2073-1E and MIL-STD-129 standards, with final delivery designated as FOB Origin to San Diego, California. To be eligible, the contractor must maintain CMMC Level 2 certification and demonstrate full compliance with ITAR and EAR regulations. The opportunity is categorized under NAICS code 333923, with a response deadline set for October 19, 2026.
CONSTRUCTION & EQUIPMENT MANU & CON

POSTED

5 days ago

DEADLINE

in 7 days
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NAICS: 333923
Awarded
DIBBS
CLAMP, MATERIAL LIFT
Solicitation # SPE8EE-26-T-2634
Solicitation SPE8EE-26-T-2634, issued by DLA Troop Support Construction and Equipment, is for the procurement of one material lift clamp, identified by NSN 3940-01-666-1527 and part number 20901AA-1PA. The requirement falls under NAICS code 333923. The item is to be delivered to the USS COOPERSTOWN LCS 23 at FPO AA 34085 via the fastest traceable means, with parcel post explicitly prohibited. Delivery is required within 20 days after receipt of the order, with an original required delivery date of January 5, 2026. The contract specifies destination FOB, inspection, and acceptance. Packaging must adhere to ASTM D3951, though the DLA Master List of Technical and Quality Requirements takes precedence, and palletization must follow RP001. All marking and labeling must comply with MIL-STD-129. The procurement incorporates several federal regulations, including the Buy American Act, the Berry Amendment, and DFARS 252.204-7012 for safeguarding covered defense information. Payment and invoicing are to be processed electronically through the Wide Area Workflow system.
Defense Logistics Agency

POSTED

5 days ago

DEADLINE

N/A
View Details
NAICS: 333923
New
DIBBS
SLING, EYE
Solicitation # SPE8EE-27-T-0120
Solicitation SPE8EE-27-T-0120 is a fixed-price request for quotations issued by DLA Troop Support, Construction and Equipment Manufacturing and Construction, for the procurement of eight Eye Slings (NSN 3940-01-685-0960). The requirement is split into two line items of four units each, with delivery required within five days after receipt of order to destinations in San Diego, California. All quotes must be submitted via the DLA Internet Bid Board System (DIBBS) by October 19, 2026. The government will not evaluate or award to offers utilizing additive manufacturing processes, though a price evaluation preference is available for SBA-certified HUBZone small business concerns. The contract mandates strict adherence to technical and quality standards, including MIL-STD-2073-1E for packaging and MIL-STD-129 for marking. Compliance with the Buy American Act and the Berry Amendment is required, and contractors must disclose any use of non-domestic materials. Security and regulatory requirements are significant, including Cybersecurity Maturity Model Certification (CMMC) Level 2, export control regulations under ITAR and EAR, and the basic safeguarding of covered contractor information systems. Invoicing and payment must be processed electronically through the Wide Area WorkFlow (WAWF) system, with inspection and acceptance occurring at the destination.
CONSTRUCTION & EQUIPMENT MANU & CON

POSTED

5 days ago

DEADLINE

in 7 days
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