Aktiebolaget Gas Accumulator (AGA ) is a Swedish company, which since 2000 is part of the Linde Group. The activities of AGA Austria were taken over by the Air Liquide Group in 2001.

AGA was founded in 1904 and took over a small factory for acetylene in Stockholm. 1912 modern factory facilities have been built on Lidingö. In 1904 AGA presented the later Nobel prize winner Gustaf Dalén as chief engineer. In the coming years AGA developed under the direction Dalens a lighting system for lighthouses ( " AGA Fyren "), which was based on gas and new gas tank ( with filling compound Agamassan for acetylene ). On this basis, they developed optical signaling systems for railways and road and air traffic, and later acoustic signal systems and Seefunkfeuer. Dalén also developed a gas stove, the AGA cooker. AGA was also one of the main manufacturers of radio and television sets in Sweden.

In the early 1970s they began to focus again on the original core area. 1971, the radio and television sector at Philips was sold, and in 1980 the medical- technical area was sold. 1980 in the mechanical engineering and Instrumentenbaubereich was transferred to the newly established stock company Pharos, whose shareholding was sold two years later.

Today, AGA Gas AB mainly produces industrial gases for different areas ( for example, the food industry, medical gases, refrigeration, etc.) and has 650 employees. It has its manufacturing plants still on Lidingö and their main office in Sundbyberg in Stockholm.