Pillars
Forth Systems pillars
Our ten core practice areas — from system testing and payments to bespoke build, AI integration and compliance-by-design.
System testing: the UK partner for banks and regulated firms
Independent system testing for banks, payment institutions and regulated third parties — UAT, SIT, regression and integration. We run UAT, SIT, regression, performance and integration testing as a managed service, with traceable evidence packs ready for audit.
Payments testing: the UK partner for banks and regulated firms
End-to-end payments testing across Faster Payments, BACS, CHAPS, card schemes and ISO 20022 — sandbox to production. We build payments test harnesses, golden message libraries and assurance suites that cover happy path, edge case and dispute flows.
Open Banking testing: the UK partner for banks and regulated firms
Open Banking and PSD2 conformance testing for AISPs, PISPs, sponsor banks and the platforms that connect them. We run conformance suites, exercise SCA fallbacks, validate consent renewal and stress-test PSU journeys against live sandboxes.
Core banking integration testing: the UK partner for banks and regulated firms
Integration testing across core banking platforms — Mambu, Thought Machine, Temenos, FIS, Finastra and bespoke ledgers. We script integration tests across ledger, GL, statements, payments, notifications and reporting, with reconciliation evidence.
Third-party integration testing: the UK partner for banks and regulated firms
Independent assurance that the third parties your bank depends on actually behave the way the contract says they do. We design and execute integration test packs against KYC, fraud, payments, comms and data vendors, with regulator-ready output.
Bespoke software development: the UK partner for banks and regulated firms
Bespoke software, internal tools and operational platforms built for regulated, industrial and infrastructure businesses. We design, build and run production software — APIs, dashboards, integrations, AI agents — on a stack that lasts past launch.
Legacy modernisation: the UK partner for banks and regulated firms
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.
Platform engineering: the UK partner for banks and regulated firms
Internal developer platforms, CI/CD, observability and infrastructure-as-code for regulated environments. We build the platforms — GitOps, IaC, secure pipelines, observability — that make every shipping team faster and safer.
AI integration: the UK partner for banks and regulated firms
Production AI integration — LLMs, RAG, agents and copilots — embedded into real operational workflows with human oversight. We integrate LLMs and agents into existing systems with retrieval, evaluation, escalation paths and audit trails.
Compliance by design: the UK partner for banks and regulated firms
Software built so compliance is a property of the system, not a quarterly scramble — DORA, FCA, GDPR, ISO 27001. We bake control evidence, immutable logging, access reviews and data residency rules into the build from day one.
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Behind Your Business.
Whether you need a custom internal platform, AI automation, operational software or a scalable marketplace, Forth Systems designs and builds systems that make businesses run better.