Siemens AG

What does Siemens AG own?
Siemens AG operates three industrial business segments: Digital Industries (factory automation and industrial software), Smart Infrastructure (building and grid technology), and Mobility (rail transportation). The company also holds approximately 75% of Siemens Healthineers AG, a separately listed medical technology company, and a minority stake of approximately 17% in Siemens Energy AG. In 2025, Siemens acquired Altair Engineering for approximately $10 billion, adding simulation and AI software capabilities to its Digital Industries segment.

Is Siemens AG publicly traded?
Yes, Siemens AG trades on the Frankfurt Stock Exchange under ticker symbol SIE. The company has no controlling shareholder, with ownership distributed among institutional investors including BlackRock, Vanguard Group, and Deutsche Bank, alongside individual shareholders. The Siemens family no longer holds a significant ownership stake.

What is Siemens' annual revenue?
Siemens reported FY2025 revenue of EUR 78.5 billion for the fiscal year ended September 30, 2025, up from EUR 75.9 billion in FY2024. Net profit was EUR 11.0 billion, up from EUR 9.0 billion in FY2024. The company employed approximately 285,000 people worldwide as of the end of FY2025.

Who is Siemens' CEO?
Roland Busch has served as President and CEO of Siemens AG since February 2021, succeeding Joe Kaeser. Busch has led the company's strategic focus on industrial software, AI, and the convergence of physical and digital industrial systems. Under his leadership, Siemens completed the acquisition of Altair Engineering for approximately $10 billion in 2025.

Who founded Siemens?
Siemens was founded on October 1, 1847, by Werner von Siemens and Johann Georg Halske in Berlin, Germany. Werner von Siemens was a Prussian military officer and inventor who pioneered electrical engineering and built the company into one of Germany's largest industrial enterprises. The company has operated for more than 175 years and relocated its headquarters from Berlin to Munich after World War II.

What is Siemens Healthineers?
Siemens Healthineers AG is a medical technology company that is majority-owned (approximately 75%) by Siemens AG but separately listed on the Frankfurt Stock Exchange under ticker SHL. It provides medical imaging systems (MRI, CT, X-ray), laboratory diagnostics, and advanced therapy equipment. Siemens Healthineers is one of the world's largest medical technology companies with approximately EUR 23.5 billion in FY2025 revenue.

Siemens was founded on October 1, 1847, by Werner von Siemens and Johann Georg Halske in Berlin, Germany. Werner von Siemens, a Prussian military officer and inventor, had developed an improved telegraph system and partnered with Halske, a precision mechanic, to commercialize it. The company's first major project was building a telegraph line from Berlin to Frankfurt in 1848, establishing Siemens as a pioneer in electrical communications infrastructure.

Throughout the second half of the 19th century, Siemens expanded rapidly across Europe and internationally, building telegraph networks across Russia, the Middle East, and India. The company developed the first electric streetcar in 1881 in Berlin and built some of the world's first electric power stations. Werner von Siemens also invented the dynamo-electric machine in 1866, a foundational contribution to electrical engineering.

By the early 20th century, Siemens had become one of Germany's largest industrial companies, operating in power generation, telecommunications, lighting, and transportation. The company merged with Schuckertwerke, an electrical manufacturer, in 1903 to form Siemens and Halske and Siemens-Schuckertwerke, which were later consolidated into Siemens AG in 1966.

During World War II, Siemens operated under the Nazi regime and used forced labor from concentration camps in its factories. The company has acknowledged this history and established a historical foundation to document and research this period. After the war, Siemens relocated its headquarters from Berlin to Munich and rebuilt its operations in West Germany.

Throughout the Cold War era, Siemens expanded globally, establishing manufacturing and sales operations across Europe, the Americas, and Asia. The company diversified into computers, semiconductors, and telecommunications equipment in the 1970s and 1980s, though it later divested many of these businesses as it refocused on its core industrial strengths.

In the 1990s and 2000s, Siemens underwent significant portfolio restructuring. The company spun off its semiconductor business as Infineon Technologies in 1999 and its mobile phone business as BenQ Mobile in 2005. Siemens acquired Dade Behring, Diagnostic Products Corporation, and other medical technology companies to build what became Siemens Healthineers.

In 2020, Siemens spun off its energy business as Siemens Energy AG, a separately listed company in which Siemens retained a minority stake. The spin-off reflected a strategic decision to focus the core Siemens business on industrial automation, smart infrastructure, and mobility rather than energy generation and transmission.

Roland Busch became President and CEO in February 2021, succeeding Joe Kaeser. Busch has accelerated the company's focus on industrial software and AI. In 2025, Siemens completed the acquisition of Altair Engineering for approximately $10 billion, a simulation and AI software company, significantly expanding the company's digital twin and computational simulation capabilities. This acquisition represents one of the largest software deals in industrial technology history.

For FY2025, Siemens reported revenue of EUR 78.5 billion and net profit of EUR 11.0 billion, representing strong growth from FY2024. The company reduced its workforce from approximately 312,000 to 285,000 through portfolio optimization and efficiency measures while maintaining strong order intake and revenue growth.

Siemens has established comprehensive sustainability practices focused on environmental responsibility, social commitment, and governance in the industrial technology sector.

Siemens has set science-based targets validated by the Science Based Targets initiative for 2030 and 2050, aligning with the Paris Agreement goals. The company has committed to achieving carbon neutrality by 2030 across its operations, with significant investments in renewable energy and energy efficiency improvements. Siemens' DEGREE framework defines sustainability targets for 2030, covering decarbonization, resource efficiency, and people centricity.

Circular economy and resource efficiency programs include sustainable manufacturing processes, waste reduction initiatives, and product lifecycle management. Siemens has implemented circular economy principles in product design and manufacturing, focusing on material efficiency, recycling, and extended product lifecycles. The company's sustainable manufacturing initiatives target waste reduction, energy efficiency improvements, and environmentally responsible sourcing across its supply chain.

Social responsibility and diversity initiatives include gender equity programs ensuring equal opportunities regardless of gender, with focus on pay parity and career development. Siemens has achieved approximately 30% female representation in management positions and provides an average of 36.6 learning hours per employee annually. The company maintains human rights policies based on international standards including the United Nations Guiding Principles on Business and Human Rights.

Siemens' sustainability challenges include the energy intensity of its manufacturing operations, the environmental impact of its global supply chain, and the need to reduce emissions from its products in use. The company's industrial products, including rail systems and factory automation equipment, consume significant energy during their operational lifecycles, and Siemens has invested in improving the energy efficiency of its products.

Siemens has received recognition for innovation, sustainability, and corporate performance.

• Dow Jones Sustainability Index: Siemens has been a consistent constituent of the DJSI World and DJSI Europe indices, assessed annually by S&P Global for ESG performance. The company has been ranked among the most sustainable industrial companies globally.
• FTSE4Good Index: Siemens is included in the FTSE4Good Index Series, which measures the performance of companies demonstrating strong ESG practices.
• Clarivate Top 100 Global Innovators: Siemens has been recognized for its patent filing activity and innovation in industrial technology, including automation systems, medical imaging, and rail transportation.
• German Sustainability Award: Siemens has received recognition from the German Sustainability Award for its environmental and social initiatives, including its carbon neutral operations target and circular economy programs.
• Top Employer Germany: Siemens has been certified as a Top Employer in Germany by the Top Employers Institute, recognizing its employee development, workplace culture, and benefits programs.

Siemens has faced significant legal and regulatory challenges during its history, particularly related to bribery and corruption.

In 2008, Siemens paid approximately $1.6 billion in fines to settle bribery charges brought by U.S. and German authorities. The settlement resolved allegations that Siemens had systematically paid bribes to government officials in multiple countries to win public contracts over a period of years. The U.S. Department of Justice and SEC, along with German prosecutors, investigated the case. The settlement was one of the largest bribery settlements in history at the time and prompted a significant overhaul of Siemens' compliance and ethics programs. The company subsequently established a comprehensive compliance organization and implemented stringent anti-corruption controls.

The company has also faced scrutiny over its historical use of forced labor during World War II. Siemens used forced labor from concentration camps in its factories during the Nazi era. The company has acknowledged this history, established the Siemens Historical Institute to research and document this period, and contributed to compensation funds for surviving victims.

Siemens has faced regulatory scrutiny related to its global operations, including export controls and sanctions compliance. The company's operations in Russia were wound down following the imposition of sanctions in 2022, and Siemens has invested in compliance infrastructure to manage export control requirements across its global supply chain.

The Altair Engineering acquisition in 2025 required regulatory approval from antitrust authorities in multiple jurisdictions, including the European Union and the United States. The acquisition was approved subject to conditions related to certain software product lines, and Siemens completed the integration in 2025.