Brownfield & Legacy Modernisation
Every quarter the legacy platform stays, the exit gets more expensive: new products bend around it, support contracts climb, and the people who understand it retire. We modernise the estates others won't quote on, the safe way: AI agents map and rebuild at a pace manual teams can't match, senior architects design every change, and nothing switches over until it's proven to behave exactly like the system it replaces.
The ecosystem we work in every day.
WHAT WE DO, AND HOW WE KNOW IT WORKS
The map nobody has
What we do:
Modernisation stalls because no one can say what depends on what. Our AI agents read the entire estate, every interface and data flow, and produce the complete current-state picture in weeks. Our architects turn it into a sequenced plan with risks ranked, which you own outright whether or not we build any of it.
Attached proof:
For a UK healthcare provider, 20+ disconnected systems were analysed into a complete architecture blueprint in 6 weeks, on a budget a traditional consultancy would not have quoted for.
An estate that gets simpler, not just newer
What we do:
Modernisation that recreates the old mess in new technology is a waste of money. We build reusable integration assets once and document them, so duplicated connections disappear and the next project extends what exists.
Attached proof:
The same utility programme eliminated 10 to 15 duplicate integrations, and the client holds documentation for every integration point.
Migration, proven interface by interface
What we do:
Every connection is rebuilt beside the old one and tested against its exact behaviour before anything switches. Not a sample: every interface. The cutover happens when the proof exists, and a rollback plan exists before the cutover does.
Attached proof:
For a major UK water utility, 200+ interfaces were redesigned as real-time and API-led on Salesforce and MuleSoft, and the network never lost service.
A record your regulator can read
What we do:
Every change in a modernisation carries the name of the person who approved it and the evidence behind it, written at the moment it happened. When anyone asks how the estate was changed, the answer is an export, not an archaeology project.
Attached proof:
Every one of the utility's interfaces was designed, documented and reviewed by a named person before it shipped.
HOW EVERY ENGAGEMENT RUNS
Discover
Discover. AI reads your estate end to end. Gate: your Enterprise Architect or Head of Risk.
Design
Design. AI works through the full target architecture. Gate: the Chief Architect.
Build
Build. AI writes and tests code and configuration in parallel. Gate: the Engineering Lead.
Verify
Verify. AI checks new behaviour against old on every interface. Gate: QA or Compliance Lead.
Release
Release. AI prepares the release and rollback plan. Gate: your own named sign-off.
Operate
Operate. AI watches the live system and prepares anomalies for review. Gate: the Ops Lead.
PROVEN AT NETWORK SCALE
The ServiceNow story
A major UK water utility was running end-of-life IBM platforms under millions of continuously reporting devices, with environmental compliance obligations that made a risky migration unthinkable. Over 8 months, our architects and engineers redesigned 200+ interfaces as real-time and API-led and cut over without the network losing service.
Documentation for every integration point, reusable assets that erased 10 to 15 duplicate integrations, and a named review behind every interface before it shipped.
NOT A MENU. A CAPABILITY.
Your legacy might not look like anyone else's: a platform mid-merger, a vendor gone out of business, a system whose documentation left with its author. We design the modernisation your specific estate needs and prove every step of it.
IF YOU CARRY A QUOTA IN THIS ECOSYSTEM
The renewal that's stuck on migration cost? That's our specialty.
If you're the Account Executive or RVP holding a renewal blocked by an old integration estate, we're the partner that unblocks it. We migrate them milestone by milestone, each interface proven against the old one before cutover.
Deal hesitating on implementation? A proof of concept priced to say yes: a fast, governed build of exactly the thing they doubt.
Renewal stalled on migration cost? We move them off the old platform milestone by milestone, proven as we go.
Data product sitting unused? We get it live, so the licence renews on results instead of promises.
Objection handling
Our systems can't go down. How do you modernise something the business runs on?
What happens to the evidence if we stop working with you?
How do you price, and what happens when something overruns?
We already have an SI on our account. Is this a conflict?
One conversation with the person who would run your modernisation, not a sales team. An honest read on whether it needs an assessment, a phased migration, or just better evidence.
We reply within one business day.