# Siemens acquires Defacto Technologies

Siemens has agreed to acquire French EDA software provider Defacto Technologies to expand its EDA portfolio.

- Type: Acquisition
- Announced: 2026-09-11
- Where: France
- Value: $9.10B (8.20B EUR)
- Status: announced
- Products: EDA software
- Sectors: [Semiconductors and Industrial Electronics](https://endata.com/sectors/semiconductors-electronics.md)

## Companies

- [Siemens](https://endata.com/companies/301.md) (acquirer)
- [Mitsubishi Heavy Industries](https://endata.com/companies/493.md) (acquirer)
- [Alstom](https://endata.com/companies/3570.md) (target)
- [Defacto Technologies](https://endata.com/companies/93107.md) (target)

## Sources

- [channel-e.de](https://www.channel-e.de/branchen-news/merger-acquisitions-2026), 2026-09-11: "Siemens hat eine Vereinbarung zur Übernahme des französischen EDA-Softwareanbieters Defacto Technologies geschlossen."
- [timesofmalta.com](https://timesofmalta.com/article/Siemens-Mitsubishi-improve-Alstom-offer.524388), 2026-09-29: "MHI and Siemens continue to firmly believe that their proposal is the best one for Alstom, its employees, its clients, its shareholders and French national interests."

---
Data from Endata (https://endata.com/). Announcements are summarized from public sources and may be incomplete; check the linked originals.