In 1984, machine factory Rieter took over Unikeller AG, a manufacturer of noise control and thermal insulation systems for vehicles, thus laying the foundation stone for Autoneum.

[7] Together with this acquisition Rieter also took on UGN, a joint venture of Globe Industries with Japanese automotive supplier Nihon Tokushu Toryo (Nittoku).

The last vehicle component manufacturers from Italy and Brazil were purchased in 1996/97 and a joint venture was launched with Magee Carpet Company in the USA.

[9][10] In 2012, Autoneum and the Japanese automotive suppliers Nittoku and Toyota Boshoku agreed to collaborate in the development of interior systems for hybrid vehicles.

[12] As part of a move to adjust production capacities to the decline in demand on the European market, the subsidiary Autoneum Italy with plants in Desio, Pignataro, Santhià and Vicolungo was sold in the same year.

Autoneum founded its “Competence Center New Mobility” in the Californian city of Sunnyvale, USA, in 2017, where among other things acoustics and thermal management components for electric vehicles are being developed.

Also in 2017, Autoneum expanded the existing collaboration with Nittoku and Toyota Boshoku with the foundation of a joint venture for research and development in vehicle acoustics.

[19] With new plants in Yantai, Changsha, Pinghu and Shenyang Tiexi, the automotive supplier expanded its production capacities in China in 2017 and 2018 to a total of ten locations.