National Welders Supply Company

What National Welders Supply Company does

National Welders Supply Company (legal entity: National Welding Supply Co. Inc.) is a privately held, family-owned regional industrial gas and welding supply distributor founded in March 1970 in Iberia Parish, Louisiana by O. Lee Dempsey. The company manufactures, markets, and distributes cryogenic, industrial, medical, specialty, and refrigerant gases, including Argon, Nitrogen, Oxygen, CO2, Propane, Propylene, Methane, and Helium, through eight service locations spanning the Louisiana Gulf coast from Texas to Mississippi. Its core technology stack centers on stationary bulk tanks with on-site gas mixers, a bulk transport fleet (Argon/Oxygen/CO2 ORCA units, Propane bobtail, Wesmore trailers for Oxygen and Nitrogen), pulse pressure cryogenic delivery technology, and a service department that performs complete welding machine rebuilding including printed circuit board repairs.

Revenue is generated through multiple streams: recurring bulk gas replenishment under subscription-style delivery contracts, one-time welding equipment and consumable sales from major OEM brands (Miller, Lincoln Electric, Hobart, Hypertherm, Profax-Lenco, Speedglas, DeWalt, Binzel-Abicor), equipment rentals, professional service and repair fees, and specialized offshore services (Nitrogen rack pickup/fill/delivery, offshore 12-pack building). The customer base spans five verticals, with petroleum (primarily Gulf coast oil and gas) as the primary segment, followed by agriculture, textile, mining, and the medical community. The go-to-market motion is sales-led, leveraging same-day field service, factory-trained technicians, FDA-compliant medical gas handling, DOT/OSHA-trained delivery personnel, and end-to-end bulk gas system installation. Leadership has remained within the Dempsey family since founding, with Michael J. Dempsey serving as President and General Manager following the founder's death in December 1999.

Name

National Welders Supply Company

Legal name

National Welding Supply Co. Inc.

Website

https://nationalweldingsupplycoinc.com

Company type

Private

Founded year

1970

Operating status

Operating

Headcount range

11–50 employees

Short description

National Welders Supply Company is a family-owned regional distributor of industrial, medical, and specialty gases plus welding equipment, operating eight locations across the Louisiana Gulf coast and serving petroleum, agriculture, textile, mining, and medical customers.

Ownership category

akta.pro rank

Product category

Industrial Gas and Welding Supply Distribution

NAICS

Industrial Gas Manufacturing (325120), Oil and Gas Field Machinery and Equipment Manufacturing (333132)

SIC

Wholesale-Industrial Machinery & Equipment (5084), Wholesale-Hardware & Plumbing & Heating Equipment & Supplies (5070), Oil & Gas Field Machinery & Equipment (3533)

akta.pro primary industry

Welding & Cutting Gases (IMAEACAH)

akta.pro secondary industries

Gas Handling Equipment & Storage (Cylinders/Tanks/Valves) (IMAEACAL), Process Gases & Gas Delivery Consumables (Specialty/Bulk/UHP) (HDAHAGAL), Compressed, Liquefied & Refrigerated Gas Transport (Class 2) (TLACANAB), Gas Piping & Fuel Systems (EDAOACAG), New Gas Line Installation & Extensions (HSAOAKAA)

Keywords

• Industrial gas distribution
• Welding supply services
• Cryogenic gas delivery
• Medical gas supply
• Bulk gas systems

Headquarters

HQ city

Charlotte

HQ country

United States

HQ region

North America

Offices8 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Supply Chain, Personnel, Operations, Infrastructure, Marketing or Sales

Revenue model

1. Bulk Industrial Gases: Sale and delivery of industrial gases including Argon, Nitrogen, Oxygen, CO2, Propane, Propylene, Methane, and Helium through bulk tanks and transport fleet with on-site filling services.
2. Medical Gases: Supply of medical grade gases with compliant handling and inventory management for medical community.
3. Welding Equipment and Supplies: Sale of welding machines, cutting equipment, plasma machines, engine driven machines, welding consumables, and accessories from major brands.
4. Equipment Rental: Rental machines and diesel offshore ready units for industrial applications.
5. Service and Repair: Complete rebuilding of welding machines, printed circuit board repairs, bulk gas system setup, and field service calls.

Go-to-market motion1 record

Distribution channels2 records

Marketing channels2 records

Core offering

National Welding Supply Co. Inc. distributes industrial, medical, specialty, and refrigerant gases (Argon, Nitrogen, Oxygen, CO2, Propane, Propylene, Methane, Helium) via bulk transport fleet and stationary tanks with on-site filling, and sells welding equipment, supplies, rentals, and complete welding machine service/repair including PCB repair. The company also installs bulk gas systems, services offshore Nitrogen racks and 12-packs for petroleum customers, and provides Load Test/NDE certifications across eight Louisiana Gulf coast locations.

Product overview

National Welding Supply Co. Inc. is a regional industrial gas and welding supplies distributor operating primarily in south Louisiana. The company's product portfolio consists of: (1) Bulk Industrial and Medical Gases — Argon, Nitrogen, Oxygen, CO2, Propane, Propylene, Methane, and Helium — delivered via bulk transport fleet and stored in customer stationary tanks; (2) On-site filling and bulk gas system installation services including pipe runs and gas mixer setup; (3) Welding equipment service and repair including complete machine rebuilding and PCB repair; (4) Rental machines and diesel offshore-ready units; (5) Offshore services including Nitrogen rack pickup/fill/delivery and offshore 12-pack building; and (6) Load Test and NDE (Non-Destructive Examination) certifications. The company operates eight service locations across Louisiana and serves customers along the Gulf coast from Texas to Mississippi.

Differentiator

Problem solved

Functional benefit

Products and services

• Bulk Industrial and Medical Gases Sale and delivery of industrial and medical-grade gases including Argon, Nitrogen, Oxygen, CO2, Propane, Propylene, Methane, and Helium, supplied via stationary customer bulk tanks, gas mixers, on-site filling services, and a company-owned bulk transport fleet.
• Welding Equipment and Supplies Sale of welding machines, cutting equipment, plasma machines, engine-driven machines, welding consumables, and accessories, distributed as an authorized dealer of brands such as Miller, Lincoln Electric, Hobart, Hypertherm, Profax-Lenco, Speedglas, DeWalt, Binzel-Abicor, and Lucas Milhaupt.
• Welding Equipment Service and Repair Factory-trained service technicians provide complete rebuilding of welding machines, printed circuit board repairs, and same-day field service for welding machines, cutting equipment, gas equipment, plasma machines, and engine-driven machines, with stocked service trucks dispatched from eight Louisiana locations.
• Bulk Gas System Installation Complete setup of bulk gas systems for customers, including running pipe from vessels through gas mixers as needed to the drops in customer buildings; provided by National Welding Supply Co. Inc.'s experienced service department.
• Equipment Rental Services Rental of a wide variety of welding and industrial machines, including diesel offshore-ready units, available to support short-term and project-based customer needs across south Louisiana.
• Offshore Nitrogen Services Pickup, fill, and delivery of offshore Nitrogen racks for Gulf coast petroleum customers, along with building and rebuilding of offshore 12-packs to maintain current inventory.
• Load Test and NDE Certifications Non-destructive examination (NDE) certifications and load testing certifications offered for various industry standards and specifications, including NWS2001-NWS2012 series and specifications such as 222, 924-943, 1011, 1343-1344, 1383-1387, 1953-1974, 2001-2012, 2165-2174, 2522-2541, and Saf-T-Cart series.

Quantifiable outcome

• Minimal waste, lost motion, misunderstanding or problems for customers

Named customers5 records

Segments5 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Ten partnerships are on record, tiered core and major.

• Miller WeldscoreChannel Partner/ Reseller/ DistributorProduct partner for welding equipment and machines. NWS is an authorized reseller of Miller welding products.
• Lincoln ElectriccoreChannel Partner/ Reseller/ DistributorProduct partner for welding equipment and supplies. NWS features Lincoln Electric products.
• Hobart WelderscoreChannel Partner/ Reseller/ DistributorProduct partner for welding equipment. NWS is an authorized Hobart dealer.
• HyperthermcoreChannel Partner/ Reseller/ DistributorProduct partner for plasma cutting equipment. NWS features Hypertherm plasma machines.
• Profax-LencomajorChannel Partner/ Reseller/ DistributorProduct partner for welding torches and accessories.
• SpeedglasmajorChannel Partner/ Reseller/ DistributorProduct partner for welding helmets and safety equipment.
• DeWaltmajorChannel Partner/ Reseller/ DistributorProduct partner for power tools and industrial equipment.
• Binzel-AbicormajorChannel Partner/ Reseller/ DistributorProduct partner for welding torch consumables and accessories.
• Chart IndustriesmajorTechnology or IntegrationTechnology partner for bulk gas storage and distribution equipment including cryogenic vessels.
• Lucas MilhauptmajorChannel Partner/ Reseller/ DistributorProduct partner for brazing alloys and silver brazing products.

Scale indicators4 records

Expansion highlights3 records

Regional players

• Norco Inc. Multi-state regional distributor of industrial, medical, and specialty gases headquartered in Idaho with branch networks across the Northwest and Mountain West. Comparable mix of bulk delivery, welding supply, and gas handling services but does not overlap geographically with NWSC.
• Indiana Oxygen Company: Indiana-based industrial and medical gas distributor with bulk supply, welding equipment, and related services. Closely comparable business model to NWSC but concentrated in the Midwest rather than the Gulf coast.
• Roberts Oxygen: Mid-Atlantic and Southeast regional industrial gas distributor with bulk delivery, welding supply, and medical gas offerings. Comparable in scale and service mix to NWSC but serves different primary geographies.

Direct peers

• nexAir: Memphis-based industrial gas and welding supply distributor serving the Southeast US. Closest direct peer to NWSC by business model — bulk gases, welding equipment, cylinder and medical supply — with overlapping geographies in the Mid-South and Gulf-adjacent states.
• Matheson Tri-Gas: US subsidiary of Nippon Sanso Holdings operating a multi-region industrial gas distribution network with bulk, cylinder, and specialty gas offerings. Most directly comparable peer in terms of business model — regional branches, bulk delivery fleet, welding supply mix — though larger and more geographically diverse.

Broad incumbents

• Air Products and Chemicals: Global industrial gas major with air separation plants and bulk distribution across the US. Operates at vastly larger scale than NWSC across the same core gases (argon, oxygen, nitrogen, CO2), but serves a much broader industrial base rather than the regional Gulf coast niche.
• Linde plc: Largest industrial gas company globally with national bulk distribution and on-site supply. Competes with NWSC in the Louisiana market through larger plant economics and a wider specialty gas portfolio, while NWSC retains local service advantage.
• Air Liquide USA: Global industrial gas player with significant Gulf coast presence, including pipeline supply to petrochemical complexes. Competes with NWSC on bulk oxygen, nitrogen, and hydrogen, typically through larger contracts that NWSC can complement rather than displace.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

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Compliance5 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about National Welders Supply Company