O2 Systems Ltd is a UK-registered software house. We publish our own products, build bespoke systems for clients, and advise on IT strategy — all from one team that doesn't hand projects off between departments.
Most software projects fail quietly: the spec drifts, the original developer moves on, and the business is left maintaining a system nobody fully understands. O2 Systems Ltd was started to fix that pattern specifically — one accountable team, from architecture through to long-term support.
We registered against four SIC codes deliberately. It means a client can come to us for a single licensed product, a fully bespoke build, independent technical advice, or ongoing operational support — without being passed to a different supplier for each.
That's still how we operate today: small enough that the person who scoped your project is the person who can explain why a decision was made eighteen months later.
Not a poster on the wall — these are the things we actually check a project against before it ships.
The team that designs a system is the team that supports it. No handover gaps, no "that wasn't us."
Architecture and data design happen on paper first. Surprises in production are a planning failure, not bad luck.
Our consultancy work isn't a sales channel for our own products — sometimes the right answer is to recommend nothing.
Fewer, more senior people on each engagement, so context never gets lost in translation between layers.
O2 Systems Ltd is registered under the following UK Standard Industrial Classification (SIC) codes, reflecting the full scope of work we take on.
See what each code means →Development and licensing of software products not classified elsewhere.
Custom application development for commercial and personal use.
Advisory services on planning and developing IT systems and infrastructure.
Technical support, recovery and IT-related services outside the above categories.
That's the whole pitch. Tell us what you're building and we'll tell you honestly if we're the right fit.