In 1971, the foundations for a success story were laid: Wolfgang Karl and Werner H. Heilmann jointly founded INGenieur Union (engineer union) in Constance and began producing spring-loaded test probes and the first test fixture systems. What began with seven employees has developed into an internationally successful company. Today, more than 400 people in over 65 countries work for INGUN worldwide. Even 50 years after its foundation, the company produces exclusively at its head-quarters in Constance. Made in Germany is one of their guiding principles. 

"For five decades, we at INGUN have been developing high-performance test technology for electrical and electronic products. Smartphones, autonomous driving and advances in medical technology—all these developments are barely imaginable without suitable test technology. We are proud that we can support our customers worldwide with future-oriented, reliable testing solutions and in doing so actively shape the world of tomorrow," says Armin Karl, Managing Director of INGUN

At, the company not only looks back at its past, but also presents its new corporate design and gives an outlook on where the company is heading in the future. "Our goal is to im-prove everyday life and the quality of life in the long term with our products —we embrace this challenge every day anew with the greatest passion and will continue to do so in the future," explains Armin Karl. 

Partner for future technology 

An instinctive sense of vision and innovation —this characterises INGUN's path to success. As a leader in innovation, the company focuses on solutions that that do not yet exist and strike new paths so that our customers’ visions today are tomorrow’s reality. 

INGUN is not only a pioneer for 5G, but also sees itself as a solution-oriented partner for companies in all industries. Renowned companies from all over the world rely on the quality products from this global player in the test equipment industry. 

Testing made easy 

With a refined performance profile, the company has a clear focus on its core competences: The development, production and distribution of sophisticated test components for all testing requirements. "We want to make testing as easy as possible for our customers," explains Jochen Müller, member of the INGUN management. "That is why we offer innovative, modular and ideally-suited solutions for a wide range of industries and applications. In this way, we contribute to the reliability and durability of advanced technologies." 

New internet presence with online shop 

Just in time for this milestone year, INGUN not only presents itself with a new website, but also launches its online shop. At, the world's largest portfolio of test fixture kits, customising accessories and test probes is available around the clock. Corporate customers within the EU can now order everything for the optimal connection of test point and test system online. 

Sharing expertise and adding value 

In addition to the online shop, the new website also offers its own expertise section. INGUN's world of expertise conveys relevant industry knowledge with tutorials & videos and a glossary. The blog "INGUN Techtalk" focuses on testing technology and informs the readers about relevant topics, ap-plications and products, as well as helpful information that makes testing easier.