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Siemens agrees to buy debug-tools maker Lauterbach

The deal adds the TRACE32 franchise to Siemens' EDA business, letting engineers see chip and software behaviour together before silicon arrives.

M&A News deals deskTechnology / Semiconductor design software · Germany, Europe10 Nov 2026

Siemens has signed an agreement to acquire Lauterbach, the German maker of TRACE32 debug and trace tools for embedded systems, the Munich-based group said on 10 November 2026. Financial terms were not disclosed.

Why Siemens AG is buying Lauterbach GmbH

Siemens said pairing Lauterbach's debugging technology with its hardware-assisted verification products would let customers develop and verify embedded software earlier, and it expects significant revenue synergies because many customers already use both companies' tools.

“With Lauterbach, we are further extending our industry-leading EDA portfolio for semiconductor design”Cedrik Neike, Member of the Managing Board of Siemens AG and President Digital Industries

Deal terms and financing

Lauterbach, founded in 1979 and based in Höhenkirchen near Munich, has around 170 employees and posted revenue of roughly €60m in 2025. Co-founder Stephan Lauterbach and Thomas Ullmann are expected to continue their work within Siemens after closing.

Regulatory approvals and timing

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

Market context

Siemens has been building its Digital Industries software arm through acquisitions, including Altair and Dotmatics, as chip and system design converge.

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