About S4

Building practical technology for security operations.

S4 is a security software ecosystem shaped around the people, places, work, and records behind day-to-day operations.

S4 — Site, Shift, Staff, Security

The S4 idea

Security. Sites. Shifts. Staff.

These four areas define the S4 master brand and the operational focus shared across the product family.

S4 Platform connects the wider security operation. PatrolSafe by S4 provides a focused Windows product for patrol evidence. S4 Guard supports the officer mobile experience.

How we think about products

Clear technology for operational work.

These principles keep the S4 product family focused on day-to-day operational needs.

01

Practical

Technology should solve recognisable operational problems.

02

Clear

Complex security workflows should remain understandable.

03

Connected

People, sites, shifts, and records work better with shared operational context.

04

Supported

Products need clear routes to assistance and useful documentation.

The S4 product family

One ecosystem, three focused products.

Choose the complete operations platform, the focused patrol-evidence product, or the officer mobile experience.

Connected operations

S4 Platform

Run your entire security operation.

Connect workforce, sites, shifts, incidents, compliance, clients, and reporting.

  • Workforce
  • Sites
  • Shifts
  • Live operations

Windows patrol evidence

PatrolSafe by S4

Patrol evidence. Automatically organised.

Capture patrol images from approved WhatsApp groups and organise them into searchable site records.

  • Approved groups
  • Automatic capture
  • Site records
  • Search

Officer mobile application

Coming Soon

S4 Guard

Your officers. Connected.

Mobile access to jobs, site information, incidents, welfare updates, and timesheets.

  • Jobs
  • Check-in / out
  • Incidents
  • Timesheets

Our focus

Technology grounded in the operation.

S4 focuses on practical product experiences for security teams: coordinating the wider operation, organising patrol evidence, and supporting officers in the field.

Explore S4

Find the right starting point for your operation.

Explore S4 Platform, review the wider product family, or speak with us about your operational workflow.