ZUG, Switzerland, July 9, 2025 – Siemens Smart Infrastructure and Microsoft have announced a collaboration to improve access to IoT data in buildings. The partnership will enable interoperability between Siemens’ Building X platform and Microsoft Azure IoT Operations, using Azure Arc. Azure IoT Operations provides infrastructure and tools for connecting edge devices and integrating data, supporting the optimization of building operations and IoT system management.
Building X and Azure IoT Operations enable access to IoT data from commercial buildings, data centers, and educational facilities. This interoperability allows users access to datapoints such as temperature, pressure, and indoor air quality from cloud-connected devices, including HVAC systems, valves, and actuators. The integration supports automated device onboarding and system monitoring. Customers can apply this data to develop custom applications for energy monitoring, space utilization, and other operational improvements.
One-click device onboarding to the cloud, and data exchange will give customers freedom to design IoT architecture. Siemens’ hardware and software components can be integrated to a single vendor ecosystem.
The collaboration leverages open industry standards, including World Wide Web Consortium (W3C) Web of Things (WoT), describing the metadata and interfaces of hard- and software, as well as Open Platform Communications Unified Architecture (OPC UA) for communication of data to the cloud. Both Siemens and Microsoft are members of W3C and the OPC Foundation, organizations that develop standards for accessibility, interoperability, privacy, and security in the industry. “This collaboration with Microsoft reflects our shared vision of enabling customers to harness the full potential of IoT through open standards and interoperability,” said Susanne Seitz, CEO, Siemens Smart Infrastructure Buildings. “The improved data access will provide portfolio managers with granular visibility into critical metrics such as energy efficiency and consumption. With IoT data often being siloed, this level of transparency is a game-changer for an industry seeking to optimize building operations and meet sustainability targets.”
“Siemens shares Microsoft’s focus on interoperability and open IoT standards. This collaboration is a significant step forward in making IoT data more actionable,” said Erich Barnstedt, senior director & architect, corporate standards group, Microsoft. “Microsoft’s strategy underscores our commitment to partnering with industry leaders to empower customers with greater choice and control over their IoT solutions.”
The interoperability between Siemens’ Building X and Azure IoT Operations will be available on the market from the second half of 2025.
Source: Siemens
About Siemens Smart Infrastructure (SI)
Siemens Smart Infrastructure (SI), headquartered in Zug, Switzerland, is a division of Siemens AG focused on integrating energy systems, buildings, and industrial processes to improve operational efficiency and functionality. The division offers a broad portfolio of building automation solutions, including HVAC controls, fire safety, security systems, energy performance services, grid resilience solutions, and electric vehicle charging infrastructure. Its solutions support sectors such as data centers, energy, and industrial operations. SI develops integrated technical systems that address the challenges of urbanization and climate change, covering the entire energy value chain from power generation to end consumption. The division also prioritizes cybersecurity to maintain secure and reliable operations in increasingly digitalized environments. As of fiscal year 2024, Siemens Smart Infrastructure reported a profit margin of 17.3% and employed approximately 78,500 people worldwide.
About Siemens AG
Siemens AG, headquartered in Munich, Germany, is a global technology company serving the industrial, infrastructure, transportation, and healthcare sectors. Founded in 1847, Siemens provides products and services such as industrial automation systems, digitalization solutions, energy-efficient technologies, and medical diagnostic equipment. In fiscal year 2024, ending September 30, the company reported revenue of €75.9 billion and net income of €9.0 billion. Siemens employs approx. 312,000 people worldwide, with about 90,000 located in Germany. The company holds a leading position in automation, industrial software, and digital solutions, and owns a majority stake in Siemens Healthineers, focused on diagnostics and healthcare systems. Siemens applies industrial and generative AI technologies to improve efficiency, operational performance, and sustainability across manufacturing, infrastructure, and mobility. Its solutions combine physical systems and digital tools to support industrial processes, smart infrastructure, and connected mobility applications.