Lauterbach develops comprehensive, modular and extensible development and verification tools for microprocessors and embedded CPU cores in the form of hardware-assisted debuggers and real-time trace tools. The combination of Siemens’ and Lauterbach’s complementary technologies enables a unified view of chip and software behavior and helps customers more quickly identify errors arising from complex interactions between hardware and software during chip development. The results are faster time to revenue and higher product quality.

The planned acquisition represents another important step in further establishing Siemens’ position as one of the world's leading electronic design automation (EDA) powerhouses. By adding industry-leading debugging technologies to its hardware-assisted verification solutions, Siemens is further extending its competitive edge. The planned combined solution will enable customers to develop and verify embedded software even earlier, and well before the physical chip is available.

Unified view of ASIC and SoC circuit behaviours

By bringing together these previously separate workflows into a single solution Siemens aims to empower customers with a unified hardware/software view of how increasingly complex application-specific integrated circuit (ASIC) and system-on-a-chip (SoC) devices behave. This shift-left approach helps customers analyse hardware/software interactions at an early stage and significantly shortens the time-to-market for new software-defined products.

“With Lauterbach, we are further extending our industry-leading EDA portfolio for semiconductor design by bringing together our premier hardware-assisted verification portfolio with its industry-leading software debugging technologies. As semiconductors represent a core vertical for our technology strategy, this enables customers to test and optimise their products even before the actual chip is produced – significantly reducing development time,” said Cedrik Neike, Member of the Managing Board of Siemens AG and President Digital Industries.

“Lauterbach is a remarkable success story, written in Germany for the global semiconductor industry. We will build on the impressive legacy that founders Lothar and Stephan Lauterbach and their team have achieved over the past decades and are very pleased to welcome the Lauterbach group to Siemens. We are also delighted that Stephan Lauterbach and Thomas Ullmann will continue their work as part of Siemens following the closing of the transaction.”

The transaction is expected to close in the first half of 2027, subject to customary closing conditions and required regulatory approvals.