2026 Buyer's Guide
Nitrogen Generator Manufacturers and Suppliers: A Buyer's Guide
This guide covers the major nitrogen generator manufacturers and specialist suppliers serving the United States: who they are, where they build, what technology they run, and how to choose between them. It is published by Gas Generation Solutions, a US supplier of USA-built on-site nitrogen generator systems, and every company detail below is taken from that company's own website.
Lower nitrogen cost vs delivered gas
Typical payback
System service life
PSA nitrogen purity range
How to read the nitrogen generator market
Nitrogen generator companies fall into three groups. Global industrial groups such as Atlas Copco and Parker Hannifin sell nitrogen generators as one product line inside a much larger compressed-air business. Gas-generation specialists such as GENERON, Holtec Gas Systems, OXYMAT, and NOVAIR design and manufacture generators as their core business. And specialist suppliers size, configure, and support systems for specific applications. All of them build on the same two technologies: pressure swing adsorption (PSA) and membrane separation.
Gas Generation Solutions publishes this guide from the third group, and that is exactly why we can write it. We are not one of the manufacturers competing on this list, so we can evaluate all of them honestly. Our job is everything the hardware alone cannot do: incorporated in 1979, with over 40 years in business, we supply USA-built PSA and membrane nitrogen generators sized for anything from a single production line to facility-wide demand, take on large custom-engineered generation projects built to formal specification packages, and support multi-location corporate contracts across the United States, Mexico, and Canada. You will find us in the list below, labeled as what we are: a specialist supplier.
Where a system is manufactured matters in practice: it affects lead times, parts availability, and how fast someone can help when a system needs attention. This guide lists each company's manufacturing base as its own website states it, so you can weigh that factor with real information instead of assumptions.
All company and product names on this page are trademarks of their respective owners. Gas Generation Solutions is not affiliated with any company listed below. Company details are taken from each company's own website, retrieved July 2026.
The major nitrogen generator manufacturers and suppliers
Listed alphabetically, including where we fit. Each entry states where the company is based, where it manufactures or sources, and what it focuses on, as published on its own website. No rankings: the right maker for an offshore platform is rarely the right one for a food packaging line.
Atlas Copco
A global compressed-air group whose nitrogen generators are sold through its compressor organization, with its US compressor business based in Rock Hill, South Carolina. The NGP+ PSA line covers 95% to 99.999% purity at flows of 2 to 2,870 Nm3/h, alongside NGM membrane units. A fit when you want the generator and the air compressor from a single global vendor.
Compressed Gas Technologies (CGT)
A Canadian nitrogen specialist based in Windsor, Ontario, with a US address in Troy, Michigan, in the business since 2001. Its PSA and membrane lines span 1 to 100,000 SCFH, with strength in laboratory and LC-MS, food packaging, and laser cutting applications.
Gas Generation Solutions
That's us, the publisher of this guide. Incorporated in 1979, with over 40 years in business, we supply USA-built PSA and membrane nitrogen generators from a single production line to facility-wide demand, with per-unit capacity to 100,000 SCFH and units chained for higher flow. Every system is sized against measured usage with a free flow meter and ships with a built-in oxygen analyzer, supported directly across the United States, Mexico, and Canada.
GENERON
A Houston-based manufacturer with more than 40 years in nitrogen generation and gas separation, producing in Houston, Texas and Pittsburg, California, with a third facility in Chengdu, China. Engineered-to-order PSA packages reach 254,000 SCFH, aimed at oil and gas, petrochemical, and marine projects. See our full GENERON nitrogen generator comparison.
Holtec Gas Systems
A Missouri manufacturer building nitrogen generators since 1999, now producing in St. Charles, Missouri. Standard and custom systems cover 20 to 250,000 SCFH at 95% to 99.999% purity, and the company exports widely, with customers in 34 countries.
NOVAIR
A French group headquartered in Paris with more than 45 years in medical and industrial gas equipment, and manufacturing and R&D centers in Italy and the United States. Its US operation in North Tonawanda, New York carries ISO 9001 and ISO 13485 certifications, with PSA oxygen and nitrogen generators plus medical gas equipment.
OXYMAT
A European PSA specialist headquartered in Denmark, with manufacturing, R&D, and service operating from its facility in Slovakia, covering both oxygen and nitrogen generation.
Parker Hannifin
A US motion and control corporation whose nitrogen generators come out of its filtration business, backed by more than 30 years in that industry. The NITROSource PSA line runs 95% to 99.9995% purity, with MIDIGAS PSA units and membrane modules below it. See our full Parker nitrogen generator comparison.
Pneumatech
A compressed air treatment and on-site gas generation brand dating to 1966, selling PSA and membrane nitrogen generators, oxygen generators, and nitrogen purification systems through country organizations worldwide. Its generator line sits alongside a deep air-treatment catalog of dryers, filters, and measurement equipment.
South-Tek Systems
A Wilmington, North Carolina company supplying nitrogen generation and compressed air packages, with a strong niche in fire protection: nitrogen systems that stop corrosion in dry and wet sprinkler lines. It also serves food and beverage, industrial metals, and military customers through a distributor network.
Company details above are taken from each company's own website, retrieved July 2026. Last reviewed: July 2026. All trademarks are the property of their respective owners.
How to choose a nitrogen generator manufacturer
Brand recognition is the least useful filter on this page. These six factors decide whether a system performs and pays back, whoever supplies it. Use them on every quote.
01
Purity your process actually needs
Purity drives system size and operating cost. Food packaging typically runs 99% to 99.9%, laser cutting 99.9% up to 99.9995% depending on the laser, and selective soldering 99.99% to 99.999%. Specifying higher purity than the process needs inflates every number in the quote.
02
PSA or membrane technology
A PSA nitrogen generator is efficient across the full purity range up to 99.9995%. A membrane system is simple and compact but practical up to about 99.5%. Most manufacturers on this page offer both; the right answer is a purity question, not a brand question.
03
Air-to-nitrogen ratio
Every SCF of nitrogen costs compressed air, and the ratio climbs with purity. Ask each manufacturer for the air consumption at your purity and flow. It is the single biggest driver of electrical operating cost, and quotes are not comparable without it.
04
Where the system is built
Manufacturing location affects lead times, parts availability, and service response. The list above states each company's manufacturing base from its own website, so you can weigh a USA-built system against one produced overseas with facts, not assumptions.
05
Measured demand, not a guess
An oversized generator wastes capital and an undersized one starves your process. Gas Generation Solutions sends you a free nitrogen flow meter so you can measure real usage before anyone sizes a system. Data beats nameplate estimates every time.
06
Total cost over 20 years
Compare purchase price plus compressed air, filters, and sieve or membrane life over 20 years, then set that against what delivered nitrogen costs today. On-site generation typically cuts nitrogen cost by up to 90% with payback in 12 to 14 months.
Where Gas Generation Solutions fits
You will find us in the list above as a specialist supplier, not a manufacturer, and that distinction is the reason this guide exists. Because we do not compete on the manufacturing side, we can evaluate every maker on this page honestly. What Gas Generation Solutions does is supply USA-built on-site nitrogen generator systems and the work the hardware alone cannot do: sizing against your measured demand, matching technology to purity, and supporting the system for its working life. If a made in USA nitrogen generator matters for your procurement, every system we supply is built in the USA.
- Any scale of manufacturing demand. Laser cutting, electronics soldering, food packaging, heat treating, and blanketing, from a single production line to facility-wide supply.
- Large custom-engineered projects. Systems delivered to formal specification packages with engineering drawings, data sheets, and customer-specified purity, pressure, and ambient requirements, with per-unit capacity to 100,000 SCFH and units chained for higher flow.
- Multi-location corporate contracts. Standardized nitrogen generation across sites in the United States, Mexico, and Canada, with support for corporate fleets at sites abroad.
- Sizing on data, at no charge. We ship a free cellular nitrogen flow meter to your site so the system is sized against measured demand, not a guess that gets padded upward.
- Purity you can prove. Every generator ships with a built-in oxygen analyzer that reads purity at the buffer tank, which matters for food, pharma, and electronics audits.
- Economics that hold up. Most customers cut nitrogen cost by up to 90% versus delivered gas, reach payback in 12 to 14 months, and run the system for 20 years or more.
Frequently Asked Questions
Who are the major nitrogen generator manufacturers?
The major manufacturers serving the United States include GENERON, Atlas Copco, Parker Hannifin, Holtec Gas Systems, South-Tek Systems, Pneumatech, NOVAIR, and OXYMAT, alongside specialist suppliers such as Compressed Gas Technologies and Gas Generation Solutions. They divide into global industrial groups that sell nitrogen generators as part of a wider compressed-air line, and gas-generation specialists whose core business is the generator itself. The right choice depends on your purity, flow, and support needs, not name recognition.
What is the difference between a nitrogen generator manufacturer and a supplier?
A manufacturer designs and fabricates the hardware. A specialist supplier sizes, configures, and supports the system for your application. Gas Generation Solutions is a supplier: we supply USA-built PSA and membrane nitrogen generators, size them against your measured demand using a free flow meter, deliver system drawings, startup procedures, operator training, and parts, and support systems across the United States, Mexico, and Canada.
Which nitrogen generators are made in the USA?
Per each company's own website as of July 2026: GENERON manufactures in Houston, Texas and Pittsburg, California, with a third facility in Chengdu, China. Holtec Gas Systems manufactures in St. Charles, Missouri. NOVAIR runs manufacturing and R&D centers in Italy and the United States. OXYMAT manufactures in Slovakia. Others produce at global facilities. If a made in USA nitrogen generator matters for your procurement, every system Gas Generation Solutions supplies is built in the USA.
Should I choose a PSA or membrane nitrogen generator?
Follow your purity requirement, not the brand. A PSA nitrogen generator is efficient across the full range up to 99.9995% purity, which covers food packaging, laser cutting, soldering, and pharmaceutical applications. Membrane is simple and compact and works well up to about 99.5%, but its air consumption rises sharply beyond that. Most manufacturers in this guide offer both technologies, so the technology decision comes before the brand decision.
How do I compare nitrogen generator companies on price?
Compare total cost over 20 years, not purchase price. Ask every company for the air-to-nitrogen ratio at your purity and flow, since compressed air is the biggest operating cost, and make sure each quote is sized against measured demand rather than a nameplate guess. Set the result against what delivered nitrogen costs today: on-site generation typically cuts nitrogen cost by up to 90%, with payback in 12 to 14 months.
Do I have to buy from the biggest nitrogen generator manufacturer?
No. Installed base and company size matter less than fit: a right-sized system at the purity your process needs, verified output from a built-in oxygen analyzer, and a direct line to the people who sized it. If you are quoting a system from any company on this list, send Gas Generation Solutions the specification and we will size a USA-built system against it, itemized line by line, at no obligation.
Put The Guide To Work
Get a quote you can set beside any manufacturer's
Shortlisting manufacturers? Send us the specification you are quoting and we will size a USA-built system against it, itemized so you can compare line by line. If you do not know your usage yet, we will send you a free flow meter to measure it first. No obligation.