MUNICH, GERMANY — Siemens has completed its acquisition of Altair Engineering Inc., a provider of industrial simulation and analysis software, for approximately US$10 billion. 

The merger strengthens Siemens’ position as a technology provider and expands its industrial software portfolio.

Enhancing industrial software portfolio

The addition of Altair’s technology to Siemens’ Xcelerator platform will create an AI-powered design, engineering, and simulation portfolio. 

This integration enhances Siemens’ capabilities in mechanical and electromagnetic simulation, high-performance computing (HPC), data science, and artificial intelligence (AI). 

“Adding Altair’s groundbreaking innovations to the Siemens Xcelerator platform will create the world’s most complete AI-powered design, engineering and simulation portfolio. Together, we will help our customers to innovate at the scale and speed that today’s complexity-driven world demands,” said Roland Busch, President and CEO of Siemens AG.

We have completed the acquisition of @Altair_Inc, a leading provider of #software in the industrial #simulation & analysis market. As part of our ONE Tech Company program, we're welcoming Altair’s community to drive unprecedented innovation & efficiency.https://t.co/OmXyziKwlv

— Siemens Press Office (@siemens_press) March 26, 2025

Expanding global reach and impact

Siemens operates globally, with presence in countries across Europe, the Americas, and Asia. The company generated €75.9 billion (US$82 billion) in revenue in fiscal 2024. Siemens’ ONE Tech Company program aims to extend its leadership in industrial software, leveraging data and AI to drive innovation across industries.

The acquisition of Altair is part of Siemens’ strategic growth plan, which includes significant investments in software, AI-enabled products, and sustainability. 

Over the past 20 years, Siemens has invested over US$100 billion in the United States alone, including recent expansions in California and Texas.