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Siemens Building Technologies Ltd. provides technical infrastructure for security, comfort and efficiency in buildings. The company was founded in October 1998 and is headquartered in Brampton, Canada.

Siemens (China) Co., Ltd. is a joint venture company in China. It offers mobile phones & other electronic and comunications gadgets. The company is headquartered in Beijing, CN.

Part of Siemens AG, Siemens Building Technologies AG is a Swiss company that offers energy-efficient, safe, and secure buildings and infrastructure. The company is based in Zug, Switzerland. The company acts as a trusted advisor and reliable partner, providing system integration, services, and products. Siemens also provides ways for internal and external parties to report compliance violations. The company believes that technology with purpose can solve the greatest challenges of our time and offer career opportunities to those who join their team.

Part of Siemens AG, Siemens Ltd. (Hong Kong) is a Chinese company that produces energy and supplies systems for power generation and transmission. The company is based in Hong Kong, Hong Kong.

Wüest Partner AG engages in the provision of consulting services and solutions that focus on construction and real estate markets, as well as spatial and location development. Its services include consulting, valuation, applications, data, and publications. The company was founded in 1985 and is headquartered in Zurich, Switzerland.