Airgas Brand Guidelines: From Connecticut Oxygen to an Air Liquide Company

A local distributor and a long run of purchases.

Airgas began in 1982. The company says it was founded that year with the purchase of a local distributor, Connecticut Oxygen, and English Wikipedia names its founder as Peter McCausland, who led it as chairman and chief executive. The business became a publicly traded company in 1986, Wikipedia says.

From that start Airgas grew mainly by buying other businesses. English Wikipedia counts more than 500 acquisitions alongside internal growth; the company’s own figure is more than 520. One of them was Red-D-Arc Welderentals, a welding-equipment rental business bought in 1995, according to Wikipedia, and the Red-D-Arc name is still linked from the Airgas website. The company says this run of purchases made it “the largest U.S. distribution network in the packaged gas industry” — the trade in gases sold in cylinders and other packages rather than piped or delivered in bulk.

By 2009 Airgas was large enough to join the S&P 500 index, replacing Cooper Industries on 8 September that year, Wikipedia says. Its size also drew a rival’s interest. In October 2009, according to Wikipedia, John McGlade, chief executive of Air Products, asked McCausland privately whether he would consider combining the two companies, and was turned down. In February 2010 Air Products took its offer straight to shareholders as a tender offer, and the contest ran for a year.

It ended in February 2011, when the Delaware Court of Chancery upheld Airgas’s use of a “poison pill” defence, and Air Products ended its pursuit, the trade paper CHEManager reported on 16 February 2011. “Air Products has many other compelling growth opportunities around the world that we are continuing to pursue,” McGlade said at the time, according to the paper. The case was heard as Air Products and Chemicals Inc v Airgas Inc, alongside a shareholder suit over the same bid. A poison pill, the paper explained, is meant to give a board time to look for alternatives and to explain to shareholders why a hostile offer is inadequate; critics see it as a way for managers to entrench themselves.

Gases, hardgoods and safety gear.

Airgas describes itself as “a leading U.S. supplier of industrial, medical and specialty gases, as well as hardgoods and related products,” as one of the largest U.S. suppliers of safety products, and as a leading U.S. supplier of ammonia products and process chemicals. English Wikipedia breaks the range down further: industrial, medical and specialty gases; atmospheric gases; carbon dioxide and dry ice; nitrous oxide; ammonia and process chemicals; welding equipment and supplies; and safety products.

Most of the gas leaves in cylinders. Wikipedia describes it as delivered “in packaged or cylinder form,” and the company says its network of more than 1,400 locations includes branches, fill plants, specialty gas laboratories and production sites. Wikipedia adds regional distribution centres to that list. Alongside its own gases, the Airgas website sells hardgoods from other makers, with brand pages for names such as Lincoln Electric, DeWalt, MSA and Ansell.

The company sells through several routes at once. Wikipedia lists its own branches and an outside sales force, a Strategic Accounts team for large customers, distributors and resellers, telesales, a catalogue and e-business. Airgas names its telesales channel Airgas Total Access and says it serves more than one million customers with more than 18,000 associates. The industries Wikipedia lists run from manufacturing and metal fabrication and non-residential construction to energy and chemicals, life sciences and healthcare, food, beverage and retail, and government, defence and aerospace.

Welding still features prominently in its news. On 8 October 2026 the Airgas newsroom announced that the company would show welding automation at the FABTECH 2026 trade show, and its home page presents gases, gas equipment, welding products, safety products and tools and hardware as its main shop categories.

Cylinders, tanks and trucks.

Industrial gas companies sell something nobody sees. Oxygen, nitrogen, argon, carbon dioxide and hydrogen are colourless, so the identity of a gas supplier has to live on the things that hold and move the product: the cylinder, the storage tank, the delivery truck and the plant where air is separated into its parts.

The cylinder is the most familiar object in the category. Rows of steel and aluminium bottles, their shoulders painted in colours that identify the contents, appear in almost every supplier’s photography, often chained in racks at a welding shop or a filling plant. Beside them stand the larger forms of the trade: white or pale-grey bulk tanks outside factories and hospitals, and long tanker trucks that carry liquefied gases from plant to customer, usually wearing the supplier’s name and colours along the side.

The plants themselves have become an image of their own. An air-separation unit is a tall column, often wrapped in cladding and pipework, that cools air until its components can be drawn off one by one. Photographed at night, lit against a dark sky, these columns give the sector its most dramatic pictures, and many companies use them in annual reports and on their home pages.

The human scenes are fewer and more settled. A welder behind a mask in a shower of sparks stands for the industrial side; a hospital corridor or a patient at home with an oxygen concentrator stands for the medical side. Between the hardware and those two scenes, most of the visual language of the category is set. The brands in this guide work within that shared vocabulary, and what separates them is largely the name on the truck and the colour of the paint.

An Air Liquide company.

Airgas did lose its independence, but to a different buyer. In November 2015 it agreed to be acquired by France’s Air Liquide, in an agreement approved unanimously by both companies’ boards, and the purchase was completed on 23 May 2016, World Oil reported that day. Airgas shares were delisted from the New York Stock Exchange, and the company became a subsidiary within Air Liquide’s U.S. operations. Commercially, the report said, it would go to market as “Airgas, an Air Liquide company.” The combined businesses would employ about 68,000 people around the world and serve well over three million customers and patients, according to the same report.

That phrase is still how the company introduces itself. Its website calls its owner “a world leader in gases, technology and services for Industry and Health” and presents the combination as giving customers a global footprint. The business kept buying under its new owner: in 2019 Airgas signed an agreement to acquire TA Corporate Holdings, known as Tech Air, an independent distributor of industrial gases and welding supplies, Wikipedia says. The company is headquartered in Radnor Township, Pennsylvania.

For a design guide, Airgas shows how an acquired brand can keep its own name in front and carry its owner’s name in a single line beneath it. Compare Air Liquide, its parent since 2016, and Air Products, the rival whose bid it resisted. For this guide we use a deep navy, a steel grey and a warm amber with a sans, an unofficial interpretation; no product or logo is reproduced.

Keep Airgas’s identity on hand — save it to a board in the Made Good inspiration library.