In 2015, the Siemens Audiology Group was transferred to the investment fund ETQ, owned by the Stungmann family of entrepreneurs. Then, in 2017, the SIEMENS audiology division responsible for developing and manufacturing hearing aids became Signa Siemens Audiology Solutions (Signa Solutions Auditives Siemens).
This rebranding took place after Siemens Audiologie was acquired by the German group Sivantos, which has been a world leader in the production of hearing aids for more than 100 years. The group also owns Rexton and Audio Service, employing 5,000 people in more than 25 countries.
In the merger of the two major hearing aid manufacturers, the same workshops, factories, research centre, engineering teams, and repair and commercial businesses were kept. Siemens hearing aids are currently manufactured at the historic French headquarters located in Bobigny in Saint-Saint-Denis under the brand name Signia (Signia, solutions auditives Siemens).