Auergesellschaft
Auergesellschaft was a German industrial and research company known for gas mantles, luminescent materials, rare earths, radioactivity, and uranium processing.
Last updated August 26, 2026
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History
Auergesellschaft developed from Deutsche Gasglühlicht AG, or Degea, founded in Berlin in 1892 by Leopold Koppel and Carl Auer von Welsbach. Its early business centered on incandescent gas mantles, which improved the performance of gas lighting. The company expanded internationally and by 1901 had subsidiaries or operations in Austria, the United States, and England. Its scientific work increasingly covered rare earths, luminescence, radium, thorium, and related chemical processes. The company also entered safety equipment. During the First World War it manufactured military gas masks and later supplied industrial versions. Its lighting activities contributed to the creation of OSRAM. In 1920, Auergesellschaft combined its electric-lamp interests with those of Siemens & Halske and AEG in the formation of OSRAM. The company continued to invest in research and established the Oranienburg plant in 1926. Auer-Glaswerke followed in 1938. In 1934, the Nazi regime forced Koppel to sell Auergesellschaft to Degussa. The acquisition placed the company within a larger German chemicals and metals group. Nuclear chemistry became increasingly important. Nikolaus Riehl, who had earned a doctorate under Lise Meitner and Otto Hahn, worked at Auergesellschaft from 1927 and eventually led its scientific headquarters. After Germany's military authorities expressed interest in nuclear energy in 1939, Riehl and Günter Wirths organized high-purity uranium-oxide production at Oranienburg. The plant supplied uranium materials for experiments associated with the German nuclear-energy project. Allied intelligence identified the plant's strategic importance during the Second World War. In March 1945, American bombers heavily attacked Oranienburg to prevent its uranium-processing resources from falling into Soviet hands. Soviet search teams nevertheless found substantial uranium oxide and dismantled the remaining technical facilities. Riehl and members of his laboratory were transported to the Soviet Union in July 1945, where their expertise and equipment were used in the Soviet atomic-bomb effort. The postwar corporate history led to a 1958 merger with Mine Safety Appliances Corporation. Auergesellschaft became a limited company in 1960 and later operated under the name MSA Auer. The available material does not establish the precise structure or independent status of the brand today.
- 1960
Converted to a limited company
[1]The company became a limited corporation and was later associated with the MSA Auer name.
- 1958
Merged with Mine Safety Appliances Corporation
[1]Auergesellschaft entered a corporate combination with the American industrial-safety company.
- 1945
Oranienburg plant destroyed and Soviet assets removed
[1]The plant was bombed by the United States and later stripped by Soviet teams of uranium, equipment, and personnel.
- 1939
Industrial uranium-oxide production initiated
[1]The Oranienburg plant began developing high-purity uranium-oxide production for Germany's nuclear research effort.
- 1935
Luminescent light developed
[1]Auergesellschaft developed a luminescent-light technology during its expansion into advanced lighting materials.
- 1934
Acquired by Degussa
[1]The company was transferred to Degussa after the Nazi regime forced Koppel to sell it.
- 1926
Oranienburg plant constructed
[1]Auergesellschaft built the Oranienburg facility northeast of Berlin, later used for uranium-related production.
- 1920
OSRAM formed
[1]Auergesellschaft combined its electric-lamp operations with Siemens & Halske and AEG.
- 1906
OSRAM-related lamp development
[1]The OSRAM electric-lighting name and associated lamp development emerged from the company's lighting activities.
- 1901
Early international expansion
[1]The company had established subsidiaries or operations in Austria, the United States, and England.
Products and positioning
A technically oriented German industrial and research enterprise that evolved from gas lighting into specialty materials, radiation science, uranium processing, and industrial safety.
Lighting · 1892
Gas mantles
Gas mantles were the company's foundational commercial product. Based on Auer von Welsbach's technology, they increased the brightness of gas lamps by using a heat-resistant incandescent material. This business established the company's identity and financed later expansion into specialty chemicals and scientific materials.
Lighting technology · 1935
Luminescent materials and lights
Auergesellschaft researched luminescence and developed a luminescent-light technology by 1935. These activities extended the company beyond conventional gas lighting into materials and optical technologies that were relevant to industrial and scientific applications.
Specialty chemicals
Rare-earth and radioactive compounds
The company processed and researched rare-earth materials and radioactive substances, including radium and thorium compounds. Its expertise in these materials later supported uranium-related work and made the company relevant to wartime nuclear research and postwar technical intelligence operations.
Nuclear materials · 1939
Uranium oxide and uranium materials
At Oranienburg, Auergesellschaft developed industrial-scale production of high-purity uranium oxide from 1939. The facility also supplied uranium sheets and cubes for experiments conducted within Germany's wartime nuclear-energy program.
Industrial safety
Gas masks and industrial safety equipment
The enterprise manufactured military gas masks during the First World War and continued producing industrial gas masks afterward. Its later corporate connection with Mine Safety Appliances led to the MSA Auer identity and a stronger association with occupational safety products.
Brand decisions
1958
Merge with Mine Safety Appliances CorporationM&ABackground
The postwar company sought a new corporate framework after the destruction of its wartime facilities and the removal of key technical assets.
Action taken
Auergesellschaft merged with the American Mine Safety Appliances Corporation.
Aftermath
The business became associated with industrial safety and later operated as MSA Auer.
1945
Evacuate and secure scientific personnelOtherBackground
As Allied armies approached Berlin, Nikolaus Riehl and colleagues moved away from Oranienburg in an attempt to be reached by British or American forces.
Action taken
Riehl and his laboratory staff were ultimately taken by Soviet teams and transported to the Soviet Union, while the laboratory was dismantled.
Aftermath
The staff and technical assets contributed to Soviet uranium production and nuclear-weapons research after the war.
1939
Expand into industrial uranium productionStrategyBackground
Nikolaus Riehl recognized the potential industrial importance of uranium after reading contemporary research on the technical use of nuclear energy. German Army authorities expressed interest in production capabilities.
Action taken
Auergesellschaft established high-purity uranium-oxide production at its Oranienburg plant and supplied uranium materials for nuclear experiments.
Aftermath
The Oranienburg facility became a target of Allied intelligence and bombing, and its equipment and personnel were later taken by the Soviet Union for its atomic-bomb program.
1934
Accept acquisition by Degussa under Nazi pressureM&ABackground
The Nazi regime forced Leopold Koppel to sell Auergesellschaft. Degussa, a major German chemicals and metals company, acquired the enterprise.
Action taken
Auergesellschaft was transferred into Degussa's corporate ownership.
Aftermath
The acquisition placed Auergesellschaft within a larger industrial group during the period when its research and production activities expanded into uranium compounds and nuclear-related materials.
Sources1 sources
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