Infineon Technologies AG

What does Infineon do?

Infineon designs and manufactures semiconductors, with its largest business in power chips that control electricity in vehicles, industrial systems, and data centers. It also makes microcontrollers, sensors, and security chips.

Is Infineon publicly traded?

Yes. It trades on the Frankfurt Stock Exchange under ticker IFX and is a member of the DAX index. US investors can access it on the OTCQX market under IFNNY.

When was Infineon founded?

Infineon was created on April 1, 1999, when Siemens spun off its semiconductor division. It held its IPO in March 2000.

Where is Infineon headquartered?

The company is headquartered in Neubiberg, a municipality directly southeast of Munich in Bavaria, Germany.

What is Infineon's revenue?

Infineon reported revenue of EUR 14.66 billion for fiscal 2025, which ended September 30, 2025. Automotive is its largest segment at roughly half of sales.

Infineon was created on April 1, 1999, when Siemens AG carved out its semiconductor operations into a separate company. The new entity combined chip lines that Siemens had built over decades, including a memory business that later became the spin-off Qimonda. Infineon listed on the Frankfurt and New York stock exchanges in March 2000.

The early years were dominated by memory market cycles and losses at Qimonda, which Infineon separated in 2006 and which failed entirely in 2009. The post-Qimonda company repositioned around power semiconductors, automotive chips, and security ICs, segments where German engineering depth translated into pricing power.

Major acquisitions shaped the modern portfolio. Infineon bought International Rectifier in 2015 for about $3 billion, strengthening power management. The 2020 purchase of Cypress Semiconductor for approximately EUR 9 billion added microcontrollers and connectivity, and the 2023 acquisition of GaN Systems expanded gallium nitride power technology. In 2025 it completed the purchase of Marvell's automotive Ethernet business, and it agreed to acquire a EUR 570 million sensor portfolio from ams-OSRAM, expected to close in 2026.

Leadership passed from Wolfgang Ziebart to Peter Bauer in 2008, then to Reinhard Ploss in 2012. Jochen Hanebeck, a company veteran, became CEO in April 2022.

Fiscal 2025 revenue of EUR 14.66 billion was down 2 percent, reflecting weak automotive and industrial demand and unfavorable currency effects. The company has guided for moderate growth in fiscal 2026 and is building a major new Smart Power Fab in Dresden, a roughly EUR 5 billion investment supported by German government funding.

Infineon is one of the more credible sustainability performers in semiconductors. It holds a science-based emissions target, reports through CDP, and has committed to carbon neutrality for Scope 1 and 2 emissions by 2030. Its products sit inside the decarbonization economy: power chips enable EVs, wind and solar systems, and efficient data centers. The company's 2025 CSR reporting highlights renewable electricity sourcing across its sites and water management programs at fabs in water-stressed regions.

Infineon regularly appears in the DAX 40 ESG index group and has received EcoVadis sustainability ratings in the top percentile of rated companies. It is consistently ranked among Europe's leading semiconductor employers and received supplier awards from major automotive customers including awards tied to EV platform supply agreements.

In 2014 the European Commission fined Infineon approximately EUR 82.8 million for participating in a smart card chip cartel alongside Philips, Samsung, and Renesas between 2003 and 2005. The companies coordinated on pricing and customer responses; the case closed with settlement.

Beyond that, the company faces the structural scrutiny applied to semiconductor firms with large China revenue: export control compliance and geopolitical exposure appear as risk factors in its filings. No other material regulatory actions are on record.