It was created as a result of a merger in 2018 of American company Praxair and Linde AG and is domiciled in Ireland and headquartered in the United Kingdom.

It serves customers in the healthcare, petroleum refining, manufacturing, food, beverage carbonation, fiber-optics, steel making, aerospace, material handling equipment (MHE), chemicals, electronics and water treatment industries.

In the industrial gas area, the company uses the brand names Linde, AGA, BOC, TIG, Mox-Linde Gases, Afrox, Sigas and PanGas.

Following success in this market, he moved on to developing lower temperature systems resulting in 1895 in a patent covering the liquefaction of air.

[15] This work lead to the 1909 invention of the Linde–Frank–Caro process to produce hydrogen and carbon monoxide, which were further key feedstocks for the emerging chemicals industry.

Linde took full ownership of the company in 1929, and from this origin developed a business manufacturing first engines and tractors, and then from the 1950s onwards, a range of mechanical handling equipment such as fork lift trucks.

Linde also acquired the Aktiengesellschaft für Industriegasverwertung (English: Corporation for Industry Gas Utilization), commonly referred to as the Heylandt Works.

In the years of Nazi Germany, Linde AG benefited from the country's attempt to become self-sufficient by refraining from imports of synthetic fuel and rubber.

[26][27][28] Also in March 2007, eight air separation units and related bulk gas business, with about 300 employees, were sold to Airgas for $495 million in cash.

[30] In 2008, the head office of Linde AG was relocated from its historic headquarters in Wiesbaden to the Angerhof building in downtown Munich.

[31] In 2010, the company acquired over 95% of the shares of Sri Lanka–based Ceylon Oxygen Ltd.[32] In June 2011, PT Linde Indonesia, a subsidiary of Linde, announced its plan to build an air separation plant worth Rp.1 trillion ($117.33 million) in Cilegon, Banten to supply industrial gas to PT Krakatau Steel's steel plant.

[33] In May 2012, the company acquired the Belgium, France, Germany, Portugal and Spain homecare business of Air Products & Chemicals for €590 million.

[40] In July 2018, the company agreed to sell certain business in North and South American assets to Messer Group and CVC Capital Partners for $3.3 billion to gain regulator approval for the Praxair merger.

[47] On 29 August 2019, the company acquired a 10% stake in Hydrospider, a Swiss producer and supplier of hydrogen derived from renewable energy sources.

[53][54] In 2021 Linde and the Turkish construction company Renaissance Heavy Industries were awarded a contract to build a Liquified Natural Gas terminal at Ust-Luga in Russia.

[57] Gist, headquartered at Chineham Business Park, Basingstoke, offers supply chain services including end-to-end management and customer fulfilment through transport and warehousing.