Testoterm is founded. The first product is an electronic clinical thermometer.
Growth of 40% makes first building extension necessary in Lenzkirch.
One of the first digital fast-response thermometers in the world with accuracy in seconds is launched.
Testo France is founded as the first subsidiary.
New subsidiaries are set up in the Netherlands and Belgium.
Testo Japan is established in Yokohama.
A world innovation, the testo 452: the multifunctional measuring instrument with a printer.
After ten years of R&D, the Testo humidity sensor is ready for the market.
New subsidiaries are set up in Italy, Spain and Australia. 450 staff worldwide.
The testostor 171 & 175 logger family begins to be successful on the market.
Founding of subsidiaries in Poland, Hungary, Czech Republic, Brazil, Korea, Turkey. The subsidiary in Brazil is founded, as is Testo industrial services in Lenzkirch.
Testo Portugal; investment in development and production in China.
The workforce reaches 1000; Testo Argentina and Testo Shanghai are founded.
The 100 million Euro turnover mark is passed.
The testo 330 rings in a new era of flue gas measurement
New subsidiaries in Russia and India.
Over 1300 staff worldwide. 50 years of Testo. 50 innovations in the anniversary year.
The Testo thermal imager conquers the market. Over 1600 staff worldwide.
Testo is one of the 100 most innovative medium-sized companies in Germany. 1800 staff worldwide.
Testo acquires the Swiss company Matter Engineering AG, a technological leader in the field of nanoparticle measurement technology.
2000 staff worldwide.
The 200 million Euro turnover mark is passed. Testo Sensor GmbH is founded in Lenzkirch. The first building phase at the new site in Titisee is ready for occupation. 2300 staff worldwide.
Testo launches the first fine particle measuring instrument onto the market. Testo Romania is founded. 2400 staff worldwide.
Recognised as one of the top 100 German medium-sized companies by the business news magazine Wirtschaftswoche and the Munich Strategy Group.
2.500 employees worldwide.
Testo is one of the first measurement technology manufacturers to enter the "internet of things", and launch the Cloud-based monitoring system testo Saveris 2 onto the market.
Testo breaks the 250 million Euro turnover barrier for the first time. Market launch for the Testo Smart Probes - instrumentscontrolled by smartphone and App.
Testo establishes new subsidiaries in Malaysia and South Africa. The thermal imager testo 870 wins the German Design Award 2016.