OpenBMS vs Siemens Building X
OpenBMS
openbms.ioSiemens Building X
siemens.comSide by side
| Figure | OpenBMS | Siemens Building X |
|---|---|---|
| Price from | — | — |
| Free plan | — | — |
| Free trial | — | — |
| Open source | — | — |
| Web | Yes | Yes |
| Windows | — | Yes |
| macOS | — | Yes |
| Linux | — | Yes |
| iOS | — | Yes |
| Android | — | Yes |
| API | — | Yes |
| Plans published | 0 | 1 |
| Spec score · Building Management Software | 6.9 (#23) | 7.8 (#11) |
| Data ownership | The site says users own their infrastructure and data and can move their semantic model between contractors, vendors or platforms. | Siemens states that the building owner remains the owner of data generated in the property and controls access, sharing and use. |
| Energy management | The site says pre-integrated ASHRAE G36 sequences deliver 30–50% HVAC energy savings. | Energy Manager monitors energy use and costs, benchmarks building portfolios, supports custom performance indicators, and provides analytics and reporting. |
| Support | The site directs users to Discord for real-time discussions, GitHub for code contributions, and its documentation for participation and support. | Siemens offers a personalized walkthrough, live demonstration, and answers to questions through its quote process. |
Plans
Siemens Building X
- Building X application or API subscriptionPrice not published
In their own words
Siemens Building X
Siemens Building X is a cloud platform for managing building operations and using building data to improve sustainability, operations, and performance. Its applications address energy and sustainability, safety and security, and operations and maintenance. Energy Manager monitors energy use and costs, compares building portfolios, and provides custom performance indicators, analytics, and reporting. Building X connects with equipment from different vendors through Siemens solutions, gateways, and standard protocols; Siemens devices are not required. Open APIs support application development and system integration, including access to application, building, and user account data. Siemens hosts the platform on AWS and carries out deployment. Siemens says the building owner owns the data and determines how it is accessed, shared, and used. The company lists ISO/IEC 27001, 27017, and 27018 certifications and a SOC 2 Type II report for Building X; Energy Manager is ISO 50001-certified. Subscriptions are yearly, with pricing available by quote. Customers must contact Siemens about cancellation policies and regional availability. Workplace Experience supports mobile and web access and kiosk-supported access.