Siemens’ planned purchase of Lauterbach would add embedded-software debugging to its semiconductor business, aiming to help developers test products earlier in the chip design cycle.
The agreement covers Lauterbach, a German maker of embedded-software debugging and processor-trace tools. Its TRACE32 products also support system-on-chip (SoC) development. Siemens plans to combine those tools with its hardware-assisted verification and digital twin capabilities.
The proposed workflow would follow a chip project from its first design stages through checks before production and testing at the system level. The companies say developers could verify embedded software before a physical chip is ready and bring hardware or software problems to light earlier. They identify semiconductor and systems developers as the likely users, and say earlier detection could help reduce development time.
Lauterbach says the rationale is growing difficulty in coordinating hardware and software work as chips and embedded applications become more complex. It cites artificial intelligence, software-defined vehicles, the Internet of Things, multicore architectures, cybersecurity and functional safety. Lauterbach CTO and co-founder Stephan Lauterbach cited “the increasing convergence of hardware and software development” as a factor behind the deal.
Lauterbach says its products, architectural support, technical expertise and customer service will continue unchanged after completion. Siemens says Stephan Lauterbach and Thomas Ullmann will remain with the company.
Siemens has previously expanded its semiconductor capabilities through acquisitions. In June 2020, it agreed to buy UltraSoC and said it planned to incorporate the company’s system-on-chip monitoring technology into its Xcelerator portfolio and Tessent product suite.
The companies expect the Lauterbach deal to close in the first half of 2027, subject to customary closing conditions and regulatory approvals. Financial terms were not disclosed.



