The trend towards digitalization in industry cannot be brought to a halt by the coronavirus; it is a trend that has even picked up speed in some areas. Most notably, the demand for solutions that enable end-to-end digitalization has had a positive impact on our product business, which has grown this year. Our US subsidiary played a key role in this welcome development, experiencing the best year in its 14-year history thanks to numerous large-scale PLM and ERP integration projects in the automotive, aviation and defense industries. But we have also continued to expand our customer base in Germany, especially among SMEs, and have been able to secure important follow-up contracts from our major OEM customers. For example, we provided automaker Daimler with support in the context of implementing agile approaches to PLM development.
During and after the months of lockdown, we worked hard on enhancing our online presence to ensure that we are able to maintain contact with our customers and establish new contacts. No easy task in light of the fact that we of course were not the only ones with this idea. In addition to countless webinars, there has been a veritable flood of online events in recent weeks and months. That is why I am proud that we were able to attract so many participants to PROSTEP TECHDAY, which was held online in November for the first time. We have also learned to work with our customers digitally and efficiently in a number of different areas.
What I am particularly pleased about is that we have hired new staff despite the crisis. And that we have used the "breathing space" that the crisis has given us to explore new (research) topics in greater depth. This is reflected by our involvement in numerous sponsored projects, regardless of whether they involve the verification and validation of autonomous driving functions, the digitalization of manufacturing and assembly processes in shipbuilding, the digitalization of existing production systems or the coordination of cross-domain change processes. You can read more about our research activities in the article by my colleague Martin Holland.