Build virtual PLCs in minutes. Deploy at Scale.
Program in the browser, run locally on industrial Linux hardware, and use cloud capabilities for visibility, versioning, and controlled updates across sites.
Page last modified
March 6 2026
Industrial control is still dominated by vendor-specific PLC stacks, hardware, firmware, and engineering tools that are tightly coupled. Over time this drives cost and risk: long upgrade cycles, limited portability between vendors, weak traceability of what’s actually running, and integration work that gets repeated and maintained site by site.
OTee modernizes the part of industrial systems that actually runs the plant: the control layer.
OTee offers a virtual PLC platform for software-based industrial control at scale. Program in a browser-based IDE | Run deterministic control logic on-site, on industrial Linux hardware. Deploy, version, and roll back across your entire Virtual PLC fleet from a central dashboard, with full change history, audit trail, and Zero-Trust Cybersecurity.
What the solution includes
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Browser IDE for IEC 61131-3 ST (built for team workflows): Write and review ST in a browser IDE with multi-user editing and a versioned project workflow.
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Hardware-agnostic runtime on Linux x86/ARM: OTee’s runtime executes control logic on-site on industrial Linux compute instead of being tied to a proprietary PLC CPU.
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Built-in cyber security: end-to-end encryption, RBAC, and automatic certificates are built in rather than assembled per project.
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Fleet operations: a central dashboard for mass OTA updates and rollbacks, with pipeline-style deployment patterns so operating many stations doesn’t become site-by-site handling.
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Built-in pub/sub data layer and standard interfaces: control data is published into a pub/sub data layer and made available through common interfaces (e.g., OPC UA, MQTT, REST), reducing repeated gateway builds and point-to-point wiring.
Industry-agnostic by design. Validated in mission-critical operations.
OTee is built around widely used control standards (IEC 61131-3) and Ethernet-based industrial connectivity, so the platform is not tied to a single industry or vendor ecosystem.
The technology is validated in live critical infrastructure, with deployments across different industries such as utilities, energy, manufacturing, and oil & gas, etc.
Reach out for a technical walkthrough, or start hands-on by trying the IDE at otee.com.
Pros & Limitations
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Browser IDE for IEC 61131-3 Structured Text:
Zero installs, multi-user editing and built-in versioning make it easier to keep one source of truth across a team.
Zero installs, multi-user editing and built-in versioning make it easier to keep one source of truth across a team.
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Hardware-agnostic Virtual PLC runtime:
OTee’s own Virtual PLC runtime runs on any x86/ARM device with a Linux kernel, so control execution isn’t tied to a proprietary PLC CPU.
OTee’s own Virtual PLC runtime runs on any x86/ARM device with a Linux kernel, so control execution isn’t tied to a proprietary PLC CPU.
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Integrated OT services:
Deploy the Virtual PLC runtime and the OT services you typically need around it, like OPC UA servers and an MQTT broker, as software services from the same managed platform.
Deploy the Virtual PLC runtime and the OT services you typically need around it, like OPC UA servers and an MQTT broker, as software services from the same managed platform.
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Fleet management - rollout, rollback, and traceability:
Run Virtual PLCs with a fleet view instead of site-by-site independent assets. See version and deployment status across stations, push controlled updates to selected groups, and roll back quickly when needed, with a clear change history of what was deployed, where, and when.
Run Virtual PLCs with a fleet view instead of site-by-site independent assets. See version and deployment status across stations, push controlled updates to selected groups, and roll back quickly when needed, with a clear change history of what was deployed, where, and when.
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Built-in pub/sub data layer (NATS) + standard interfaces:
OTee publishes control data into a built-in pub/sub backbone (NATS) and exposes it through standard interfaces like OPC UA, MQTT, and REST. Enabling the speed, flexibility, and added security that is required in Industry 4.0.
OTee publishes control data into a built-in pub/sub backbone (NATS) and exposes it through standard interfaces like OPC UA, MQTT, and REST. Enabling the speed, flexibility, and added security that is required in Industry 4.0.
Specification
| Title | Description |
|---|---|
| Theme/Discipline | Control and Automation |
| Core Tech | Control System/EquipmentAI & Advanced AnalyticsData Management & Collection |
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Programming language
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IEC 61131-3 compliant languages (Structured Text foundation)
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Architecture
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Runs on x86/ARM, 32/64 bit CPUs
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Protocols
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Compatible with industrial protocols like Ethernet/IP, Modbus, PROFINET, EtherCAT, and BACnet, with industrial-grade drivers compiled directly into the control program.
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Programming tools
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Browser-based PLC editor for programming and testing
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Deployment
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Runs on-site on industrial Linux hardware, with centralized cloud management for onboarding, deployments, updates, and fleet visibility.
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Infrastructure
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Centralized pub-sub data architecture, with OPC UA and MQTT features.
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Features
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AI assistant for Code Gen and QA
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Technology Readiness Level
The Technology Readiness Level (TRL) indicates the maturity level of novel technologies. Learn more about the TRL scale used by us.
[9/9]
Development
Technology demonstration
Mature / Proven
OTee is a Norwegian industrial software company building a Virtual PLC platform for modern industrial automation. We work with asset owners and automation teams in critical infrastructure and industrial operations that need a more flexible and scalable way to develop and operate control systems over long lifecycles.
Our focus is the control layer, the part of the system that actually runs the plant.
OTee decouples the control runtime from that stack by running control software on supported industrial Linux hardware (x86/ARM), while keeping the engineering model familiar through IEC 61131-3 Structured Text. It is built to support real operational requirements: multi-site deployment discipline, traceable changes, and secure-by-default foundations. The platform includes a browser-based engineering environment and a cloud layer for fleet-wide rollout and rollback, along with built-in security defaults and standard interfaces for data access (e.g., OPC UA, MQTT, REST).
The approach is validated in live deployments in critical infrastructure and energy environments, where reliability and operational discipline matter.
Country of Headquarters
Norway
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