SIEMENS西门子股份公司是全球领先的技术企业，创立于1847年，业务遍及全球200多个国家，专注于电气化、自动化和数字化领域。

凭借卓越的专业技能和经验，SIEMENS西门子一直是全球领先的技术企业，能够为全世界以及中国的可持续发展提供最先进的高效能源和节约型资源技术。

电气化、自动化和数字化是SIEMENS西门子的长期增长领域。为充分挖掘这些领域的市场潜力，SIEMENS将业务整合为9大业务集团。医疗为独立运营业务。

- SIEMENS西门子楼宇科技集团是安全、舒适、节能与基础设施领域的全球市场领导者。
- SIEMENS西门子数字化工厂集团（DF）致力于提供全面的无缝集成软硬件和技术服务，旨在为中国的制造企业提供支持，提高其制造流程的灵活性和效率，缩短将产品推向市场的时间。
- SIEMENS西门子能源管理集团是全球领先的产品、系统、解决方案和服务供应商之一，确保以经济、可靠、智能的方式输电及配电。
- SIEMENS西门子金融服务集团（SFS）是全球性的B2B金融解决方案提供商。我们以设备租赁解决方案、项目和结构融资来支持客户投资。
- SIEMENS西门子交通集团的产品、解决方案与服务，助力中国铁路与道路高效、综合一体化的客运和货运。
- SIEMENS西门子发电与天然气集团是值得信赖的合作伙伴，拥有世界级产品与解决方案。SIEMENS西门子助力中国客户成功运营火力发电厂，并助力他们应对中国市场环境下特定的经济与生态挑战。
- 作为最为重要的合作伙伴，SIEMENS西门子凭借创新产品与广泛的服务，以确保全球各地的电力公司、石油和天然气以及工业加工行业发电设备具备高可靠性和最优性能
- SIEMENS西门子过程工业与驱动集团借助涵盖整个生命周期的创新集成式技术，大幅提高生产率并加快产品上市速度。SIEMENS西门子为中国及全球客户提供支持，持续提高产品、流程和工厂的可靠性、安全性和效率。
- SIEMENS西门子医疗——全球最大的医疗设备供应商之一，医学影像、实验室诊断、医疗信息技术领域的领军企业。
- 独立经营的SIEMENS西门子风力发电业务致力于提供可靠、环保、经济的可再生能源解决方案，并在业界处于领先地位。

Siemens AG is a German conglomerate company headquartered in Berlin and Munich and the largest industrial manufacturing company in Europe with branch offices abroad.

The principal divisions of the company are Industry, Energy, Healthcare (Siemens Healthineers), and Infrastructure & Cities, which represent the main activities of the company. The company is a prominent maker of medical diagnostics equipment and its medical health-care division, which generates about 12 percent of the company's total sales, is its second-most profitable unit, after the industrial automation division. The company is a component of the Euro Stoxx 50 stock market index. Siemens and its subsidiaries employ approximately 362,000 people worldwide and reported global revenue of around €75.6 billion in 2015 according to their annual report. The von Siemens family remain the largest shareholder with a stake of 6.9% percent, based on a market cap of €112billion, the Siemens family holds €7,7 billion worth of common stock in the company and received €201million in dividends in 2016.

Siemens offers a wide range of electrical engineering- and electronics-related products and services. Its products can be broadly divided into the following categories: buildings-related products; drives, automation and industrial plant-related products; energy-related products; lighting; medical products; and transportation and logistics-related products.

Siemens buildings-related products include building-automation equipment and systems; building-operations equipment and systems; building fire-safety equipment and systems; building-security equipment and systems; and low-voltage switchgear including circuit protection and distribution products.

Siemens drives, automation and industrial plant-related products include motors and drives for conveyor belts; pumps and compressors; heavy duty motors and drives for rolling steel mills; compressors for oil and gas pipelines; mechanical components including gears for wind turbines and cement mills; automation equipment and systems and controls for production machinery and machine tools; and industrial plant for water processing and raw material processing.

Siemens energy-related products include gas and steam turbines; generators; compressors; on- and offshore wind turbines; high-voltage transmission products; power transformers; high-voltage switching products and systems; alternating and direct current transmission systems; medium-voltage components and systems; and power automation products.

Siemens OSRAM subsidiary produces lighting products including incandescent, halogen, compact fluorescent, fluorescent, high-intensity discharge and Xenon lamps; opto-electronic semiconductor light sources such as light emitting diodes (LEDs), organic LEDs, high power laser diodes, LED systems and LED luminaires; electronic equipment including electronic ballasts; lighting control and management systems; and related precision components.

Siemens medical products include clinical information technology systems; hearing instruments; in-vitro diagnostics equipment; imaging equipment including angiography, computed tomography, fluoroscopy, magnetic resonance, mammography, molecular imaging ultrasound, and x-ray equipment; and radiation oncology and particle therapy equipment. As of 2015, Siemens finalized the sale of its hearing-aid (hearing instruments) business to Sivantos.

Siemens transportation and logistics-related products include equipment and systems for rail transportation including rail vehicles for mass transit, regional and long-distance transportation, locomotives, equipment and systems for rail electrification, central control systems, interlockings, and automated train controls; equipment and systems for road traffic including traffic detection, information and guidance; equipment and systems for airport logistics including cargo tracking and baggage handling; and equipment and systems for postal automation including letter parcel sorting.

Siemens also completed a world record in 2012 for the most electricity generated by bicycles in an hour. Generating 4,630 watts in an hour in Melbourne, Australia, on December 11, 2012