Overview
Siemens AG is a global engineering and technology company headquartered in Berlin and Munich, Germany. Founded in the 19th century, it grew into one of Europe's largest industrial and electronics firms and today operates across manufacturing, energy, healthcare and infrastructure sectors. The company develops hardware and software for industrial automation, power generation and transmission, medical imaging, mobility and building systems.

Structure and main activities

Siemens is organised into several major business areas that combine products, services and financing. These areas cover both industrial technology and support functions that enable large projects and long-term service contracts.

  • Industry: automation, factory systems, drives and digital manufacturing solutions.
  • Energy: turbines, power grid equipment, transmission and renewable integration.
  • Healthcare: medical imaging, laboratory diagnostics and related services.
  • Equity investments and industrial holdings.
  • IT solutions and services: software for industry, infrastructure and cloud-based services.
  • Siemens Financial Services (SFS): project and equipment financing.

History and development

The company traces its origins to the 1840s and the work of Werner von Siemens in telegraphy and electrical engineering. Over more than a century it expanded into power generation, transportation and industrial equipment, contributing to electrification and automation across Europe and worldwide. Post-war and late-20th-century diversification added electronics, medical technologies and digital services to its portfolio.

Products, applications and importance

Siemens supplies components and systems used in factories, power stations, hospitals and rail networks. Notable product areas include industrial control systems and software used in "Industry 4.0", gas and steam turbines for utilities, MRI and CT scanners for healthcare, and signalling and rolling stock technology for rail mobility. Its engineering and service contracts often combine equipment delivery with long-term maintenance and financing.

Notable facts and distinctions

Siemens maintains a broad global footprint through subsidiaries, joint ventures and equity stakes. It is known for extensive research and development, large industrial projects, and involvement in digitalisation of industry. The company has played a prominent role in European industrialisation and remains a major employer and exporter. For perspective on its European role see Europe.

While its structure and brand have evolved — including strategic spin-offs and reorganisations in recent decades — Siemens continues to combine hardware, software and financing to deliver integrated industrial and infrastructure solutions worldwide.