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Legacy system modernisation

Modernise ageing software without disrupting the work it supports

We understand how your current application, data and connected systems work before changing them. Then we improve or replace the right parts in manageable stages, so the organisation can keep operating while the software moves forward.

Existing and modern application interfaces connected through staged migration and record reconciliation — AI-generated illustration

Is this where you are now?

Keep what works. Improve what holds you back.

Older software can still do an essential job while becoming harder, slower and riskier to change. Before suggesting a rebuild, we identify what is still valuable, where a failure would hurt the organisation and which parts can be improved safely.

For software that is hard to change, expensive to support or reliant on knowledge held by a small number of people. Migration and continuity requirements are agreed before changes begin.
See our delivery experience

What you receive

A staged plan for moving your software forward.

We agree the scope around your system and the people who use it. Your project can include:

Deliverable 01

An assessment of the application, dependencies and support risks

Deliverable 02

A staged upgrade or replacement plan with migration priorities

Deliverable 03

Agreed replacement components and data migration with reconciliation checks

Deliverable 04

Updated technical documentation and release and recovery procedures

How we work

Improve the system while keeping the service running.

  1. 01

    Understand the system

    Review the application, its data and its connections to other systems.

  2. 02

    Plan the changes

    Agree what to retain, improve or replace and in what order.

  3. 03

    Test and migrate

    Test replacement components and migration steps before moving live data.

  4. 04

    Check the new service

    Check the new service before retiring the corresponding old components.

Getting started

Bring us what you already know.

Start with the problem, the people affected and any useful notes about your system. We will help you identify what needs attention and set out the work, timescale and responsibilities before the project begins.

Tell us what your software needs to do.

Tell us what is not working, what needs to change or what you need to build. We’ll help you work out the next step.

Discuss a project