Tosi

Secure, simple OT networking for building and industrial systems.

TOSI^® is a globally functioning operational technology (OT) networking platform for enterprises and organizations, delivering limitless possibilities to expand and power their businesses opportunities and growth. Tosi was born from the idea that secure remote access doesn’t have to be complicated, expensive or time-consuming.

Hundreds of thousands of OT networks are secured and powered by TOSI® across the globe, and over 100s of million sensors, machines, assets, devices, and their users are connected via our OT networking platform and supported with our services.

Tosi has automated secure connectivity and made it simple. It is a standardized way of building VPN connections based on a patented connection method. The configuration-free Plug & Go™ implementation is easy to carry out even without special IT skills. The unique feature of TOSI® technology is the two-way connectivity that brings the benefits of IP networking plus remote maintenance with one technology.

The game-changing solution consists of globally patented point-to-point data flow between ends allowing for a secure connection and associated marriage between two modules. The communication is end-to-end encrypted and not decrypted at any point along the way. A third-party cloud service is not included, but you can choose your own cloud or server, wherever you want.

Companies can collect data from their devices and then remotely connect back to perform service based on the analyzed data. This then allows for the use of standard OEM software available to configure, update and adjust on the edge for optimized applications.

TOSI is an operational technology (OT) networking platform designed for secure remote access, device connectivity‑technology (OT) networking platform designed for secure remote access, device connectivity and large‑scale distributed systems. It provides a consistent and controlled way to connect equipment, sensors, and BMS devices across complex environments, without the traditional overhead of custom VPNs or specialist IT configuration.

Tosi Video Library

At its core, TOSI delivers:

• Automated, configuration‑free secure tunnelling
• A patented Plug & Go™ connection method
• End‑to‑end encrypted communication
• Scalable connectivity across thousands of devices
• Local control over cloud, server and data‑routing options

TOSI plays an important role in the ControlWorks partner ecosystem because it provides the secure networking layer that supports our engineering, commissioning and long-term service work.

Why ControlWorks uses TOSI

• It enables safe remote access to BMS, devices, and field equipment
• It removes dependence on complex IT-managed VPN setups
• It supports consistent access across multiple sites and portfolios
• It allows us to work within strict security and compliance boundaries
• It reduces onsite labour by enabling offsite investigation and diagnostics
• With TOSI, we can maintain systems efficiently while ensuring the security posture meets building and enterprise requirements.

Real world applications:

Remote commissioning support:

Technicians can safely access controllers, VAV boxes, meters or supervisors during commissioning without requiring onsite presence.

Multi‑site BMS management:

Portfolios with distributed buildings can be accessed through a consistent, secure architecture rather than a patchwork of local VPNs.

Offsite diagnostics and troubleshooting:

TOSI allows engineers to review alarms, verify points, adjust logic and perform investigation remotely — reducing callouts.

ControlWorks implements TOSI as part of our BMS delivery strategy, ensuring that remote access is:

• Safe
• Controlled
• Repeatable
• Scalable
• Easy for operators to manage

Our engineers design and commission connectivity in a way that supports the building’s long‑term performance and security requirements.

Talk to our team:

If you’re exploring secure remote access, multi‑site BMS connectivity or a more streamlined approach to OT networking, our team can help you evaluate the right TOSI architecture for your site.

📩 sales@controlworks.com.au
🌐 controlworks.com.au