Legacy to cloud
Connecting on-premise estates
We connect legacy on-premise systems to cloud platforms — joining them where the interfaces already exist, and engineering the joins where they don't.
About
A London integration firm, registered in England
Company registration number 17483962 · 1 New Change, London EC4M 9AF
Registration and company details
A registered UK company, on the record
SOLARIS INNOVATIONS LTD is registered in England. These details appear here, on our contact page and in the site footer — they are the same details used in any contractual correspondence.
- Registered name
- SOLARIS INNOVATIONS LTD
- Company number
- 17483962
- Registered office
- 1 New Change, London, England, EC4M 9AF
- Telephone
- +44 7540 477081
- [email protected]
Who we are
A delivery firm, not an intermediary
Scope, build, operate — one team
We are a delivery firm. The people who scope an engagement are the people who build and operate it, which is a structural choice rather than a slogan.
It means we take on fewer projects than a larger integrator and stay involved in each of them for longer. It also means we say no to work that does not fit, and we say it early.
What we do, plainly
Systems integration and digital services
Nothing exotic — the work a hybrid estate actually needs, done with the documentation and the people who carry it.
Interfaces
Building and monitoring the joins
Every interface we build is documented, observable and named. If it fails, someone knows why within minutes — not within a mis-routed email chain.
Automation
Handovers with a clear rule
We automate the handovers that have a clear rule to follow — no guessing, no improvised decision trees, and a way back if a step fails.
Operations
Hybrid infrastructure, watched
We operate hybrid infrastructure alongside or on behalf of client teams — a watched panel, not a slide deck about one.
We do not resell licences and we do not take vendor commissions, which keeps the architectural recommendations independent of what gets purchased.
Operating principles
Three rules we hold to, on every engagement
These are load-bearing — the engagements that go well are the ones where they were agreed on day one.
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01
Document before you change
No integration work starts without an estate map, and that map is the client's to keep. The documentation we produce during a project becomes a reference the client's own team can work from — not an artefact locked inside a supplier.
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02
One interface at a time
Staged change with rehearsed rollback beats a big cutover almost every time, especially in regulated environments. If a step fails, we know exactly which step it was and how to put it back.
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03
Name the owner
Every live interface has a named person or team responsible for it on both sides. That is a condition of go-live, not a nice-to-have, and it is the thing that stops integrations quietly drifting.
The standards we hold ourselves to
Consistency is the point
Interfaces we build have explicit authentication, least-privilege access to the data they carry, logging in an agreed format, and monitoring that raises an alert when behaviour falls outside the expected pattern.
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Explicit authentication on every interface we build — no implicit trust between systems.
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Least-privilege access to the data each interface carries, scoped to the job it does.
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Logging in an agreed format, so the record is readable to the client's own team.
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Monitoring that raises an alert when behaviour falls outside the expected pattern.
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Documentation produced during the project, not reconstructed afterwards.
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Managed operations measured on whether interfaces stay within expected behaviour — and how quickly exceptions are addressed.
None of this is exotic. Applied consistently, it is what keeps a hybrid estate knowable.
How we work with larger providers
We carry the documented engineering of a specific join
We are sometimes engaged alongside larger integrators rather than instead of them. Broad-line providers carry scale, licensing relationships and procurement breadth. We carry the estate-level knowledge and the documentation of a specific join — particularly where the estate predates the current team.
That division works when it is agreed explicitly at the start. We will say so if we think a larger provider is the better lead on a piece of work.
Scale
A larger provider runs several hundred concurrent engagements. We run a small number, and the same named people stay on the account from the first workshop to go-live.
Licensing
Broad-line integrators carry vendor relationships and procurement leverage. We do not resell licences and we do not take vendor commissions, so the architecture we recommend is not shaped by what we would prefer the client to buy.
Estate depth
Where the estate predates the current IT team — platforms from the 2000s, integrations whose original author has long since left — we specialise in reading what is actually there and mapping it before touching it.
Documentation
On a co-managed engagement the documentation belongs to the client and lives in the client's own repository. It is written as we work, not as an exit requirement.
Where we decline work
Saying no at the start is cheaper for everyone
We decline three kinds of work. Not as a principle; because every one of them ends up costing the client more money than the engagement.
No internal owner named
We decline migration work when the client cannot name an internal owner for the legacy system — the decisions that stall those projects are historical, and only that person can answer them.
Estate cannot support it yet
We decline cloud-only strategies for estates that cannot support one this year. A strategy the estate cannot carry is a document that will be superseded on contact.
Proof of concept without a route
We decline speculative proofs of concept that have no route to production. A proof that is never going to run in production has already told you what the answer will be.
Contacting us
Bring the documentation you have. If none exists, that is the first output.
Initial conversations are scoping sessions and there is no charge for the first one. Bring whatever documentation exists; if none exists, the first output of the engagement will be the estate map.
Direct lines
Enquiries sent through the site are answered by a person rather than a queue.
- Telephone +44 7540 477081
- Email [email protected]
- Hours Monday to Friday, 09:00–18:00
- Office 1 New Change, London EC4M 9AF
SOLARIS INNOVATIONS LTD · Company 17483962