Pillars
Legacy modernisation: the UK partner for banks and regulated firms
In short
Modernising legacy banking, ERP and operational systems without the big-bang rewrite that took down your last attempt. We carve legacy estates into shippable slices, build the new edge, prove parity, and retire old code only when it's safe.
Why legacy modernisation matters now
Most rewrites fail because they try to replace everything at once. Strangler patterns and staged cutovers don't.
What Forth does
We carve legacy estates into shippable slices, build the new edge, prove parity, and retire old code only when it's safe.
Who it's for
Banks, insurers, councils, utilities and industrials sitting on a 15-year-old system nobody wants to touch.
What good looks like
Lower run cost, faster change, and a system your engineers can actually hire for in 2026.
How we engage
We start with a fixed-scope audit, ship a pilot inside 30 days, then run an ongoing engagement with named engineers — not an offshore pool. Every output is evidence-ready and version-controlled.
Frequently asked questions
Do you work with FCA-regulated firms on legacy modernisation?
Yes — most of our legacy modernisation work is delivered into FCA-regulated banks, payment institutions and insurers, with output mapped to the relevant FCA, PRA and DORA evidence requirements.
How quickly can you start?
Fixed-scope audits typically start within two weeks of a signed SoW. Larger legacy modernisation programmes start in 4-6 weeks once supplier onboarding is complete.
Do you sign DPAs and supplier security questionnaires?
Yes. We're set up for standard DPAs, RFIs, supplier security questionnaires, third-party risk assessments and Crown Commercial DPS engagement.
Where is delivery based?
Delivery is UK-based out of Edinburgh, with named engineers and onsite presence in London and across Scotland as required.
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