Harnessing Open Standards to Integrate Siemens Building X with Microsoft Azure IoT for Rapid Deployment

Harnessing Open Standards to Integrate Siemens Building X with Microsoft Azure IoT for Rapid Deployment

(IN BRIEF) Siemens Smart Infrastructure and Microsoft have agreed to integrate Siemens’ Building X platform with Azure IoT Operations via Azure Arc, using open standards like W3C Thing Descriptions and OPC UA PubSub. This partnership reduces IoT integration efforts by as much as 80 percent, enabling rapid device onboarding and seamless data exchange from building systems into the cloud. Enterprises can access detailed metrics—temperature, pressure, and air quality—from HVAC equipment, valves, and actuators to develop custom use cases such as energy monitoring and space optimization. Both companies, as members of the W3C and OPC Foundation, emphasize interoperability, privacy, and security. The integrated solution will be available in the latter half of 2025, expanding the capabilities of Siemens Xcelerator’s Building X platform for sustainable building management.

(PRESS RELEASE) NUREMBERG, 7-Jul-2025 — /EuropaWire/ — Siemens Smart Infrastructure and Microsoft have entered into a strategic partnership to streamline how building operators harness IoT data. By linking Siemens’ Building X digital building platform with Microsoft Azure IoT Operations (powered by Azure Arc), the collaboration leverages open standards—such as W3C Thing Descriptions and OPC UA PubSub—to dramatically simplify data integration. Customers will see integration workloads cut by up to 80 percent, driving more efficient operations and bolstering sustainability goals.

Large enterprises overseeing commercial properties, data centers, and campus environments will gain rapid, one-click onboarding of devices—bringing telemetry like temperature, pressure, and indoor-air-quality metrics into the cloud from building assets such as HVAC systems, valves, and actuators. Armed with this richer data flow, organizations can craft bespoke scenarios for energy monitoring, space utilization, and beyond, while retaining full autonomy over their IoT architecture without vendor lock-in.

Underpinning this solution are industry-backed protocols: the W3C Web of Things framework defines metadata and interface standards, and OPC UA ensures robust cloud communication. Both Siemens and Microsoft, as members of the W3C and the OPC Foundation, champion accessibility, interoperability, security, and privacy. This marks one of the first cross-provider IoT integrations built entirely on open specifications.

“Partnering with Microsoft brings our mutual vision of open-standard IoT to life,” stated Susanne Seitz, CEO of Siemens Smart Infrastructure Buildings. “Providing portfolio managers with detailed insights into energy use and system performance transforms siloed data into actionable intelligence, accelerating progress toward sustainability targets.” Erich Barnstedt, Senior Director & Architect in Microsoft’s Corporate Standards Group, added, “This effort exemplifies our commitment to interoperability and empowering customers with flexible, standards-based IoT solutions.”

Interoperability between Building X and Azure IoT Operations will become commercially available in the second half of 2025. Building X—as part of the open Siemens Xcelerator platform—enables customers to digitize, oversee, and refine building operations at scale, paving the way for sustainable, autonomous, and profitable assets.

Siemens Digital Industries (DI) empowers companies of all sizes within the process and discrete manufacturing industries to accelerate their digital and sustainability transformation across the entire value chain. Siemens’ cutting-edge automation and software portfolio revolutionizes the design, realization and optimization of products and production. And with Siemens Xcelerator – the open digital business platform – this process is made even easier, faster, and scalable. Together with our partners and ecosystem, Siemens Digital Industries enables customers to become a sustainable Digital Enterprise. Siemens Digital Industries has a workforce of around 70,000 people worldwide.

Siemens AG (Berlin and Munich) is a leading technology company focused on industry, infrastructure, mobility, and healthcare. The company’s purpose is to create technology to transform the everyday, for everyone. By combining the real and the digital worlds, Siemens empowers customers to accelerate their digital and sustainability transformations, making factories more efficient, cities more livable, and transportation more sustainable. Siemens also owns a majority stake in the publicly listed company Siemens Healthineers, a leading global medical technology provider pioneering breakthroughs in healthcare. For everyone. Everywhere. Sustainably.
In fiscal 2024, which ended on September 30, 2024, the Siemens Group generated revenue of €75.9 billion and net income of €9.0 billion. As of September 30, 2024, the company employed around 312,000 people worldwide on the basis of continuing operations. Further information is available on the Internet at www.siemens.com.

Media Contact:

Hannah Arnal
Siemens AG
+49 152 22572736
hannah.arnal@siemens.com

SOURCE: Siemens AG