Proficy vs Siemens Opcenter
Proficy Smart Factory MES and Siemens Opcenter both run and record production on the plant floor. This page compares them on ownership and portfolio, deployment, plant type, quality and traceability, scheduling, and analytics, and says which fits which situation. Each fact comes from Velotic's or Siemens's own pages.
Velotic states that Proficy Smart Factory MES can be deployed as SaaS or on premises with cloud-native Kubernetes support. Siemens offers separate Opcenter Execution products for discrete, process, electronics, medical device and diagnostics, pharma and semiconductor manufacturing.
Prices and other facts are as of November 6, 2026. Vendors change prices; confirm them on the vendor’s own pricing page. Independent analysis: neither project nor any vendor named here paid for or reviewed this page.
How they compare
Compared on each vendor's own pages as of November 6, 2026.
Ownership and portfolio
Proficy
Velotic describes itself as an independent industrial software company bringing together Proficy Software, formerly part of GE Vernova, with ThingWorx and Kepware, formerly part of PTC.
Siemens Opcenter
Siemens describes Opcenter as a unified manufacturing operations management (MOM) solutions portfolio. Siemens describes MOM as the real-time software layer that links product lifecycle management (PLM) to automation.
Proficy is now sold by an independent company; Opcenter is part of Siemens and is positioned between its design software and plant automation.
Deployment
Proficy
Velotic states that Proficy Smart Factory MES can be deployed as SaaS or on premises with cloud-native Kubernetes support.
Siemens Opcenter
Siemens describes Opcenter X as a digital manufacturing software-as-a-service (SaaS) solution with a modular approach to manufacturing operations management (MOM) for the SMB market.
Ask Siemens which Opcenter Execution product you would buy and whether it runs on premises, in the cloud or both.
Plant type
Proficy
Under production management and execution, Velotic lists digitizing and managing production from work orders and routes to materials, labor, and operator activities.
Siemens Opcenter
Siemens offers separate Opcenter Execution products for discrete, process, electronics, medical device and diagnostics, pharma and semiconductor manufacturing. Siemens describes Opcenter Execution Discrete as a dedicated MES for discrete manufacturing job shops and complex assembly operations.
Opcenter is chosen product by product for each industry; with Proficy, ask for a reference plant of your type.
Quality and traceability
Proficy
Velotic states that Proficy embeds quality into manufacturing execution with real-time process monitoring, SPC, data collection, specifications, digital workflows, and approvals. Velotic states that Proficy tracks materials, equipment, processes, production events, and operator activity throughout manufacturing.
Siemens Opcenter
Siemens states that Opcenter Execution tracks and traces the status of production and disposition of work, including documentation of regulatory and quality requirements. Siemens states that Opcenter Execution Pharma offers paperless manufacturing and electronic batch recording (eBR) of pharmaceuticals. Siemens describes Opcenter Quality as a quality management system (QMS) that manages quality planning, control and monitoring.
Both track production and quality in execution; Siemens also sells a separate quality management system and a pharma product with electronic batch records.
Scheduling
Proficy
Velotic states that combining Proficy Smart Factory MES with Proficy Scheduler extends MES upstream into finite-capacity production scheduling.
Siemens Opcenter
Siemens states that Opcenter APS production planning and scheduling products help synchronize manufacturing processes to increase resource utilization and reduce inventory levels.
Both sell scheduling as a separate product beside the MES; price it in the same quote.
Analytics and AI
Proficy
Velotic states that MCP support, expanded GraphQL APIs and Chat with Proficy MES help bring conversational AI and contextual insights directly into MES workflows.
Siemens Opcenter
Siemens states that Opcenter Intelligence provides visibility of actual production status and feeds manufacturing data analytics.
Ask each to show its analytics on your own production data, and which features need a separate license.
Which is better for a plant like mine?
It depends on the plant type and where the software may run. Siemens offers separate Opcenter Execution products for discrete, process, electronics, medical device and diagnostics, pharma and semiconductor manufacturing. Velotic states that Proficy Smart Factory MES can be deployed as SaaS or on premises with cloud-native Kubernetes support. Give both the same scenarios from one of your lines: a quality hold, a machine that stops reporting, and a recall query.
In brief
Choose Proficy when
- you want one MES product across plants of different types
- you want the same MES as SaaS at some plants and on premises at others
- you want an MES sold beside a historian, HMI/SCADA and finite-capacity scheduling
Choose Siemens Opcenter when
- you want an MES product built for one industry, such as pharma or semiconductors
- you want execution, quality, scheduling and analytics products under one portfolio
- you are a smaller manufacturer looking for a modular SaaS offer
Which fits your situation
A pharmaceutical plant that needs electronic batch records
Start with Opcenter. Siemens states that Opcenter Execution Pharma offers paperless manufacturing and electronic batch recording (eBR) of pharmaceuticals. Ask Velotic for a reference plant in your industry.
Some plants may use the cloud and others must stay on premises
Proficy. Velotic states that Proficy Smart Factory MES can be deployed as SaaS or on premises with cloud-native Kubernetes support.
A smaller manufacturer that wants SaaS
Test both. Siemens describes Opcenter X as a digital manufacturing software-as-a-service (SaaS) solution with a modular approach to manufacturing operations management (MOM) for the SMB market. Velotic states that Proficy Smart Factory MES can be deployed as SaaS or on premises with cloud-native Kubernetes support.
Production scheduling must react to what the floor did
Either. Velotic states that combining Proficy Smart Factory MES with Proficy Scheduler extends MES upstream into finite-capacity production scheduling. Siemens states that Opcenter APS production planning and scheduling products help synchronize manufacturing processes to increase resource utilization and reduce inventory levels.
Who owns Proficy now
Velotic states that its formation coincides with the closings of TPG’s acquisitions of Proficy, the former manufacturing software business of GE Vernova, and PTC’s former industrial connectivity and Internet of Things (IoT) businesses. Velotic describes itself as an independent industrial software company bringing together Proficy Software, formerly part of GE Vernova, with ThingWorx and Kepware, formerly part of PTC.
Frequently asked
Is Proficy still part of GE Vernova?
No. Velotic states that its formation coincides with the closings of TPG’s acquisitions of Proficy, the former manufacturing software business of GE Vernova, and PTC’s former industrial connectivity and Internet of Things (IoT) businesses.
Does Siemens sell Opcenter as SaaS?
Siemens describes Opcenter X as a digital manufacturing software-as-a-service (SaaS) solution with a modular approach to manufacturing operations management (MOM) for the SMB market.
Is Opcenter one product?
Siemens describes Opcenter as a unified manufacturing operations management (MOM) solutions portfolio. Siemens offers separate Opcenter Execution products for discrete, process, electronics, medical device and diagnostics, pharma and semiconductor manufacturing.