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World market leader

in measurement technology.


Testo SE & Co. KGaA, with its headquarters in the Black Forest, is a world market leader in the field of portable and stationary measurement solutions. In 37 subsidiary companies around the world, about 3,500 employees research, develop, produce and market for the high-tech company. The measurement technology expert convinces over 650,000 worldwide customers with highly precise measuring instruments and innovative solutions for the measurement data management of tomorrow.

Winning formula

An average annual growth of over 10 % since founding in 1957, and a current turnover of 400 million Euros impressively demonstrate that the Upper Black Forest and high-tech systems go perfectly together. The above-average investments in the future of the company are a part of Testo's recipe for success.

About Testo

Testo was founded in the Black Forest, Southern Germany, in 1957. The first product was an electric thermometer. 60 years on, we are now a market leader on all continents, with a customer base that is as diverse as our product range: From local trades around the corner to global pharmaceutical groups, every type of business is represented. And they all have to make important decisions in their daily work.

Measuring instruments, solutions and services

Measuring instruments, solutions and services from Testo give them the confidence that they are making the right decision, time and time again. This ensures that foods are safe, heating systems work correctly or that compliance is fulfilled in the production of drugs.

This allows our customers to increase the quality of products and services while saving time and resources. And whenever it comes down to it, and you have to make important decisions, you can rely on Testo – with certainty.

Be sure. Testo.

We work hard for our success – and are happy that this is rewarded.

In roughly 60 years of company history, Testo SE & Co. KGaA has written many large and small success stories. Here is an overview of the best ones.

With 37 subsidiary companies and over 80 distribution partners, Testo SE & Co. KGaA is represented on all five continents. Worldwide, about 3.500 staff are working for the company.

Interesting people, impressive careers, exciting product applications and fascinating technology. The Testo world has many ineresting stories to offer.

As a company operating in the air conditioning and environmental measuring technology sector, the sustainable use of resources is an integral part of Testo's self-image.

Find out all about Testo’s certifications here – including ISO 9001:2015 certification. Certificates can be downloaded.