Freedom251 › Smart Spaces Software
Siemens Building X

What Siemens Building X is
Siemens Building X is a cloud platform for managing building operations and using building data to improve sustainability, operational work, and performance. Its applications address energy and sustainability, safety and security, and operations and maintenance. Energy Manager tracks energy use and costs, benchmarks building portfolios, and supports custom performance indicators, analytics, and reporting. The platform can connect equipment from different vendors through Siemens solutions, gateways, and standard protocols, without requiring Siemens devices. Open APIs support application development and system integration, with access to application data, building data, and user account management. Siemens hosts Building X on AWS and handles deployment. Siemens says building owners own their building data and decide how others access, share, and use it. 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. Building X subscriptions are yearly, with pricing available by quote. The Workplace Experience app supports mobile and web access, plus kiosk use. Available platforms include Android, iOS, Linux, macOS, Windows, web, and API.
Who it suits
Building X suits building owners and operators seeking applications for energy management, safety and security, or operations and maintenance. It can also suit organizations connecting building systems from different vendors or developing integrations through open APIs.
What it does well
- Energy Manager tracks energy use, costs, portfolio benchmarks, and custom indicators.
- Connects through gateways and standard protocols without requiring Siemens devices.
- Open APIs cover application, building, and user account data.
- Siemens hosts the cloud platform on AWS and performs deployment.
- Building owners retain control over access to their building data.
What to know first
- Subscriptions are yearly, and pricing requires a quote.
- Regional availability and cancellation policies require contacting Siemens.
- API Manager caps machine users at 200 per partition and 75 per group.
Limits
Subscriptions are yearly, and pricing is available by quote. API Manager permits up to 200 machine users per partition and 75 per machine-user group.
Plans
| Plan | Billed and limits | Price |
|---|---|---|
| Building X application or API subscription | Yearly; contact Siemens for pricing and cancellation terms · Applications and APIs purchased separately · scale by adding subscriptions · hosting and deployment included | On request |
As siemens.com lists them, read 15 Oct 2026. The maker's own page has the final word.
Getting started
- Visit the Siemens Building X website.
- Contact Siemens through its quote process for pricing and regional availability.
- Choose applications or APIs for your target use cases.
- Start with one application and scale as needed.
- Ask Siemens for a personalized walkthrough or live demonstration.
Verdict
Choose Siemens Building X if you need cloud tools for building energy, safety, security, or maintenance, with APIs for connecting systems and developing applications. It is a less direct fit if you need published pricing or a non-yearly subscription; Siemens handles pricing and regional availability through its quote process.
Questions
Is Siemens Building X free?
The pricing model is labeled freemium, but the listed free plan is no. The subscription price is available by quote.
What platforms does Building X support?
Listed platforms are Android, iOS, Linux, macOS, web, Windows, and API. Workplace Experience also supports mobile, web, and kiosk access.
What does Building X do?
Its applications cover energy and sustainability, safety and security, and operations and maintenance. Energy Manager monitors use and costs and provides portfolio benchmarking, analytics, and reporting.
Can Building X connect to non-Siemens equipment?
Yes. It supports vendor-agnostic connectivity through Siemens solutions, gateways, and standard protocols, and does not require Siemens devices.
What does a Building X subscription cost?
Pricing is available by quote. Subscriptions are yearly.
Who owns building data in Building X?
Siemens states that the building owner owns the data and decides how it is accessed, shared, and used.
Facts from Siemens Building X's own pages
- AI and forecasting
- The platform offers AI and machine-learning analytics for real-time analysis and forecasting. · siemens.com, 15 Oct 2026
- API access limits
- Building X API Manager allows up to 200 machine users per partition and 75 per machine-user group. · siemens.com, 2 Oct 2026
- API authentication
- Developers authenticate with client credentials and receive a JWT bearer token that typically expires after 24 hours. · developer.siemens.com, 15 Oct 2026
- API breaking change
- The Operations API moved to a new eu.buildingx.siemens.com endpoint in May 2026; the old endpoint is scheduled for retirement after 31 March 2027. · developer.siemens.com, 15 Oct 2026
- API change policy
- Siemens reserves the right to change behavior for security fixes and normally gives registered users at least three months’ deprecation notice. · developer.siemens.com, 15 Oct 2026
- API conventions
- Building X APIs follow JSON:API conventions with Siemens-specific filtering, pagination and error-handling guidance. · developer.siemens.com, 15 Oct 2026
- API Manager
- API Manager provides API documentation, OpenAPI Specification resources, machine-user authentication, authorization and secret rotation. · siemens.com, 15 Oct 2026
- API sandbox
- A read-only sandbox is available immediately through the developer dashboard, but Fire, LifecycleTwin and Physical Security APIs are excluded from it. · developer.siemens.com, 15 Oct 2026
- Central dashboard
- Applications share a common dashboard and central data repository, allowing one login across applications. · siemens.com, 15 Oct 2026
- Certifications
- Siemens lists ISO/IEC 27001, 27017, and 27018 and a SOC 2 Type II report for Building X, and says Energy Manager is ISO 50001-certified. · siemens.com, 2 Oct 2026
- Cloud hosting
- Building X is based on AWS, and Siemens includes hosting and performs deployment. · siemens.com, 2 Oct 2026
- Company database facts
- Crunchbase lists Siemens as a public post-IPO-equity company headquartered in Munich with more than 10,001 employees. · crunchbase.com, 15 Oct 2026
- Company founded
- Siemens was founded in 1847. · gartner.com, 15 Oct 2026
- Company legal name
- The maker is Siemens AG, a public company headquartered in Munich, Germany. · linkedin.com, 15 Oct 2026
- Company size
- LinkedIn lists Siemens as having more than 10,001 employees and around 318,000 worldwide employees as of 30 September 2025. · linkedin.com, 15 Oct 2026
- Compliance claims
- The product page lists ISO/IEC 27001, 27017 and 27018, a SOC 2 Type II report, UL Smart System Verified Platinum and ISO 50001 for Energy Manager. · siemens.com, 15 Oct 2026
- Connectivity
- Building X is vendor-agnostic and can connect Siemens or third-party systems through gateways and standard protocols. · siemens.com, 15 Oct 2026
- Data ownership
- Siemens states that the building owner remains the owner of data generated in the property and controls access, sharing and use. · siemens.com, 15 Oct 2026
- Documentation and support
- Siemens provides online help, developer guides, API references, data sheets, training videos and release notes. · siemens.com, 15 Oct 2026
- Energy alerts
- Energy Manager can trigger alerts when monitored rules or events indicate deviations and rising costs. · siemens.com, 15 Oct 2026
- Energy management
- Energy Manager monitors energy use and costs, benchmarks building portfolios, supports custom performance indicators, and provides analytics and reporting. · siemens.com, 2 Oct 2026
- Energy Manager
- Energy Manager monitors energy, cost, water and equipment KPIs, benchmarks buildings, and supports custom rules, thresholds and baselines. · siemens.com, 15 Oct 2026
- Energy savings claim
- Siemens says customers achieve up to 30% energy savings through Building X efficiency optimization. · siemens.com, 15 Oct 2026
- Founded
- 1847 · siemens.com, 28 Sept 2026
Where Siemens Building X stands on Freedom251
- Smart Spaces Software#17 of 29
- Building Management Software#18 of 26