Siemens launches Building X Portfolio Manager

New Building X application creates transparency across all building assets, monitoring energy, water, carbon emissions, space, and environment.

Siemens Smart Infrastructure has introduced Building X Portfolio Manager, a software-as-a-service application that integrates real estate, energy, sustainability, and operational data into a unified platform for enterprises.

The app simplifies portfolio management across multiple domains by integrating OT (operational technology), IT (information technology) from enterprise systems. It aggregates data from sensors, meters, IoT devices, and data lakes, enabling portfolio managers, consultants, and energy engineers to monitor services and operations across multiple sites. These include real-time tracking, automation, and integrated data management to enhance decision-making for different aspects of the building such as energy, water, sustainability, space, environment, parking, and occupancy.

Part of Siemens Xcelerator, Building X Portfolio Manager uses AI-powered insights, automation, and cross-domain portfolio management to help organizations to optimize infrastructure and reduce emissions.


Building X Portfolio Manager is a modular, serverless platform designed for portfolio managers in large corporations and facility management companies. It supports customers managing properties across multiple locations and applications, including commercial buildings, hospitals, universities, business campuses, airports, and ports. The platform enables real-time monitoring and management of assets to improve operational efficiency.

Portfolio managers can oversee building performance, energy consumption, and asset utilization across properties. In addition, they can ensure operational efficiency and track maintenance schedules, while optimizing energy and resource use. By monitoring carbon emissions, sustainability metrics, and regulatory compliance corporate sustainability goals can be achieved, while getting insights into operational costs, financial returns, and investment planning for better performance. It enables portfolio managers to oversee multi-site assets, compare performance metrics, and verify data accuracy with workflows designed for audits.

The application provides emissions audits on a quarterly, half-yearly, and annual basis to help meet sustainability requirements while offering tenant-specific emissions data for clarity.

Building X Portfolio Manager extends the existing Building X application by enabling efficient data acquisition and compatibility with multiple data sources. It offers a modular design that is straightforward to implement. Its dashboards can be configured to cater to different users such as for C-suite executives, sustainability managers, and facility operators. Siemens is currently deploying the Building X Portfolio Manager application across 1,300 of its own sites in 60 countries. It will be available on the market from May 2025. 

Building X is a digital building platform that helps customers digitalize, manage, and optimize building operations, improving sustainability, automation, and profitability. It is part of Siemens Xcelerator, a digital business platform designed to simplify and scale digital transformation.

For more information, visit siemens.com.