Pisys PTW: Your Integrated Safe System of Work

An ISSOW is a unified digital system designed to manage all high-risk work activities. An ISSOW integrates every safety-critical element into a single platform:

  1. Permit to Work (PTW)
  2. Risk Assessment (RAMS)
  3. Isolation Management (LOTO)

The Pisys system also covers

  • Contractor Management
  • SIMOPS Control

By integrating all these elements into a single system, the Pisys ISSOW ensures that no hazardous work can commence until all prerequisite safety measures have been verified, approved, and recorded in real-time. It is the core of modern, effective Control of Work (CoW).

Move beyond paper and spreadsheets

Safety, Efficiency & Compliance

Why ISSOW?

Before ISSOW, managing operational risk was fragmented and time consuming. Traditional, paper-based, or siloed electronic systems often lead to:

  • Procedural Gaps: Work Permits are approved without confirming necessary isolations are in place, leading to dangerous simultaneous operations (SIMOPS).
  • Poor Visibility: Management lacks a real-time view of all work activity across all sites, hindering quick decision-making and emergency response.
  • Inefficiency & Delays: Paper permits require physical sign-offs, causing significant downtime and delaying critical work.
  • Compliance Risk: Inconsistent documentation and difficult auditing make proving compliance challenging and expose your organisation to regulatory penalties.

An Electronic Integrated Safe System of Work (ISSOW) is the necessary evolution, moving safety management from a checklist to a seamlessly integrated ecosystem.

Pisys Provides A Complete ISSOW

Pisys Permit To Work System was engineered from the ground up to function as a complete ISSOW. We provide:

  • Virtual Permit Board: Real-time, centralised visibility of all live permits, isolations, and SIMOPS conditions across your entire operation, accessible anywhere via the cloud.
  • Offline Mobile Capability: Our mobile app allows your field staff to manage permits, sign on/off, and perform isolations in areas with poor or no internet connectivity. All data syncs automatically when connection is restored.
  • Configurability and Compliance: Fully compatible with regulatory guidelines like HSE's HSG250, seamlessly adaptable to your specific existing Control of Work system and supports compliance with HSE/ISO/OHSAS standards.
  • Rapid Implementation: We build digital versions of your existing permits and risk assessments, allowing your team to transition quickly and minimise downtime. We also train you to configure the system to suit your own business needs

The Pisys ISSOW Ecosystem

The strength of the Pisys System is in the way our integrated modules communicate instantly, providing a complete safety framework:

The Only System You Need

Pisys Permit To Work System improves safety and efficiency across the entire workflow.

  • Safety & Risk Reduction

    Eliminates human error by enforcing procedural steps (e.g., permits must reference a current isolation). Reduces SIMOPS risk with centralised visibility.

  • Operational Efficiency

    Drastically cuts permit processing time, leading to faster job start-up. Less paper, fewer delays, more productivity

  • Audit & Compliance

    Creates a complete, tamper-proof audit trail for every action, sign-off, and isolation, making regulatory audits seamless and stress-free

  • Data & Visibility

    Provides powerful data analytics on work trends, risk hotspots, and compliance gaps that are impossible to obtain from paper records.

What Our Customers Say

Quick To Implement

We selected the Pisys system because it was extremely quick to implement, it matched our requirements very well, and was very easy to configure. Pisys staff helped us at every stage and provided on-site training to our team. We were delighted with their commitment, and they have continued to be a great partner for us as we extend our use of the system.

Daniel Hunt University of Essex

Better Service to Clients

This was a really great strategic move for us. We're now able to work more efficiently and plan tasks more effectively, which in turn means our clients get a quicker response.

Chris Bell Clean Services

Extremely Simple And Effective System

Having adopted the Pisys Permit to work system we now have great visibility on all engineering activities, and we have an extremely simple and effective system to issue and manage permits. Pisys were easy to work with, they understood the issues we faced and were extremely responsive to our questions.

Michael Arnott Hitachi Construction Machinery

Frequently Asked Questions