Siemens Digital Industries Software Acquires DownStream Technologies

Siemens to Acquire Defacto Technologies

July 21, 2026

IT Services

Siemens entered into an agreement to acquire Defacto Technologies, a privately held RTL-focused EDA software company based in Grenoble, France. The acquisition is intended to expand Siemens’ electronic design automation (EDA) portfolio with automated system-on-a-chip (SoC) design creation capabilities spanning from early design to implementation and verification.

Siemens to Acquire Precision Innovations

July 21, 2026

IT Services

Siemens has signed an agreement to acquire Precision Innovations, a privately held electronic design automation (EDA) software company, to expand its AI-powered chip planning and system-on-a-chip (SoC) design exploration capabilities. The deal is expected to close in the third quarter of 2026, subject to customary conditions, and financial terms were not disclosed.

Siemens Acquires ASTER Technologies to Integrate PCB Test Engineering into Xpedition and Valor

January 13, 2026

Software

Siemens has acquired ASTER Technologies, a France-based provider of PCBA test verification and design-for-test (DFT) software, to integrate ASTER's shift-left test engineering capabilities into its Xpedition and Valor product lines within the Siemens Xcelerator portfolio. The deal — financial terms undisclosed — aims to enable earlier defect detection, reduce re-spins and field failures, and extend Siemens' DFM and EDA capabilities across automotive, computing/HPC and networking markets.

Siemens Digital Industries Software Acquires Avery Design Systems

November 2, 2022

Software

Siemens Digital Industries Software has signed an agreement to acquire Avery Design Systems, a simulation-independent verification IP supplier headquartered in Tewksbury, Massachusetts. The acquisition will add Avery's verification IP and compliance test-suite technology to Siemens' Xcelerator portfolio to strengthen Siemens' integrated circuit verification offerings.

Siemens Digital Industries Software Acquires Fractal Technologies

May 12, 2021

Software

Siemens Digital Industries Software acquired Fractal Technologies in May 2021 to add production signoff–quality IP validation capabilities to its Xcelerator portfolio and Solido product family. The acquisition expands Siemens' EDA IC verification offerings by integrating Fractal's IP validation technology to improve design quality and accelerate time-to-market for semiconductor customers.

Siemens Acquires Avatar Integrated Systems

July 15, 2020

Software

Siemens Digital Industries Software (Mentor) has agreed to acquire Avatar Integrated Systems Inc., a Santa Clara, California developer of place-and-route electronic design automation (EDA) software. Avatar will be integrated into Siemens' Xcelerator portfolio and Mentor IC EDA suite to expand Siemens' chip physical‑design capabilities; terms were not disclosed and the deal was expected to close in H2 2020.