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Industrial Gases

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Specialty Gases

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Medical Gases

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Food Gases

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Customers Trust A-OX

Since the 1950’s, A-OX has been one of the largest, most complete distributors of industrial gas and welding supply in the upper Midwest.

Here's why customers trust A-OX with their Industrial Gases needs

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Years in Business

Proudly serving our valued customers and their communities


Team Members

Dedicated to providing the best possible service


Branch Locations

Across the Upper Mid-West


Delivery Vehicles

Delivering across a 5-state region

We Are The Specialists

A-OX Welding Supply is a premier specialty gas, industrial gas, and equipment supplier in South Dakota, North Dakota, Minnesota, Iowa, and Nebraska.

We feature a state-of-the art ISO/IEC 17025:2017 Accredited gas lab and full-service retail locations across the region. Explore our website to find out ways that A-OX Welding Supply can facilitate all of your specialty gas, industrial supply, and industrial safety needs.

We’re Fully Accredited

Members of leading Associations

Where We Distribute

Today, A-OX Welding Supply comprises 7 locations in South Dakota, North Dakota, and Iowa with a headquarters and central warehouse in Sioux Falls, SD. We are the only producer of Purity Plus Specialty Gases in South Dakota--with the ability to serve anyone in the continental United States.


To get in contact or find out more about our distribution network click the link below.

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Find Our What Our Customers Think

We enjoy being a part of the communities surrounding each of our 7 stores, and delight in supporting local schools, sports teams, and fundraising organizations.

Our first 72 years have been an amazing adventure, and we are looking forward to exploring new directions and continued growth in the future!

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a great company to buy propane....

A-OX is a great company to buy propane for your grills, fire pits, etc. The staff is wonderful to work with and the prices can't be beat!

absolutely GREAT to work with....

A-OX has been absolutely GREAT to work with. They are responsive and very professional.

Terran in Quality Control, Rachel in Specialty Gas and Emily in Accounting are 3 people you can count on. Tom Elliott and his team are a first class operation. You can count on them to exceed your expectations.

went above and beyond....

Staff helped us get what we needed and went above and beyond trying to help us find a decent bearing supply for a boat trailer. Thanks again!

Awesome people....

Awesome people, was in a pinch and in need of a part which they were out of, but found a cheaper alternative to get me rolling, and had a great attitude about it the whole time.

a solution driven company....

Great Independant distributor. They know how to get things done unlike the goofy big box distributors in the area who couldn't care less about my company only what they can get from me.

A-OX is a solution driven company from the owners on down. You will never get service like they offer anywhere else!

We’d Love To Hear From You!

Call us today and speak to one of our sales professionals to see what
A-OX Welding Supply can do for you!