Important milestones from Sonion's history.


Year Event
2014 Sonion partners with InvenSense on MEMS microphones. In July, it becomes official that the Danish company, Novo A/S,which is one of the key players in the international life science investment industry, will take over the ownership of the Sonion Group. The deal is closed in early September, 2014.
2012 Sonion divests Sonion Medical to Ferrosan Medical Devices. With the divestment, Sonion increases focus on activities which supports the new vision: “helping enhance hearing at maximum comfort”. Later in 2012, Sonion inaugurates its new 11,000 sqm factory in Manila, the Philippines.
2010 Sonion opens a 2,500 sqm factory in Vung Tau City – its second factory in Vietnam.


Altor Fund III acquires the MedTech Group from Technitrol on June 25. Sonion is reestablished as an independent company with a core focus on hearing instruments, medical devices and advanced audio applications.


Technitrol (NYSE:TNL) acquires Sonion. The Hearing Instrument Component and Medical Device Component activities are established as an independent MedTech Group under the Pulse Engineering operating company.


Sonion opens a new factory in Ho Chi Minh City, Vietnam. In the following two years, the majority of the Polish production is relocated to Vietnam.
Sonion retains a facility in Poland aimed at manufacturing components for medical devices.


Sonion establishes a dedicated group aimed at servicing a growing demand for transducer products in non-hearing instrument applications. The new customers include manufacturers of in-ear earphones and advanced headsets.


Sonion is divided into three business areas: Hearing Instrument Components, Medical Device Components and Mobile Terminal Components. The latter includes the activities of the former Kirk Acoustics organization in addition to the company’s growing MEMS microphone activities.
To meet the growing demand for hearing instrument components, a second factory is opened in Mierzyn, Poland.


Production of high volume transducers for mobile handsets is relocated from Denmark to China.


Private equity funds Polaris and Nordic Capital buy Microtronic. Shortly after, Danish company Kirk Acoustics is acquired. Kirk Acoustics supplies high volume transducers to mobile handsets. The joint company changes name into Sonion.


Customer Service Center is established in Shanghai, China.


Microtronic establishes a US sales office and Microtronic Polska is founded. In the following years, production is transferred from Denmark and the Netherlands to Poland.


Microtronic acquires Microtel.


Microtronic is appointed global distributor of Dutch company Microtel, which develops and manufactures transducer products for hearing instruments.


Microtronic aquires Micro Electric in Switzerland.


The last of the original two founders leaves the company, which is taken over by a group of financial investors.


Microtronic is founded in Roskilde, Denmark. Microtronic is developing micromechanical components to the hearing instrument industry.