Bespoke software development
Software shaped around your business instead of the other way round — scoped, built, hosted and supported by one team.
Read moreInnovative Integrated Software And Web
Custom software and web development for UK businesses
We build the system nobody sells you — bespoke software, web applications, websites and SaaS platforms, designed around how your business actually works. From the first sketch to the server it runs on, all built and supported by one team.
- Fixed written quotes
- You own the code
- Hosting & support included
- Products designed, built and shipped
- 25+Products designed, built and shipped
- Live platforms you can open right now
- 9Live platforms you can open right now
- Built in-house — no outsourcing
- 100%Built in-house — no outsourcing
- Monitored hosting on every managed site
- 24/7Monitored hosting on every managed site
Sound familiar?
Most businesses do not need more software. They need the right software.
Every company we work with arrives with a version of the same story. The tools exist, they just were not built for this business — so people fill the gaps by hand.
The spreadsheet has become the system
It started as a tracker. Now it holds your pricing, your job list and your only record of who did what — and one person has it open at a time.
You are paying per seat for 20% of a product
Three subscriptions, none of which quite fit, all of them charging for users and features you will never touch, none of them talking to each other.
The same data gets typed in three times
Orders come in one system, get re-keyed into another for invoicing, then again into a spreadsheet for the monthly report. Every hop is a chance to get it wrong.
Your website looks nothing like your business
It was built quickly, years ago, on a template — and it now loses you work before anyone has spoken to you.
We build the missing piece — and then we host it, monitor it and keep improving it, so it stays useful long after launch.
See how we workWhat we do
Software services for small and large companies
Nine things we do properly, rather than fifty we do adequately. Most projects combine two or three of them.
Web application development
Browser-based systems that work on any device, with nothing to install and no version to chase.
Read more
Web design & build
Sites that load fast, read well and get found — designed around your customers, then built properly.
Read more
Desktop & hardware software
Native Windows and Linux applications for work that needs raw speed, offline operation or direct hardware access.
Read more
SaaS platform development
Multi-tenant products with billing, per-customer branding and custom domains — the pattern we have shipped repeatedly.
Read more
Ecommerce development
Online shops and ordering platforms built around your actual products, pricing rules and fulfilment.
Read more
API integration & automation
Stop re-typing the same data into three systems. We connect what you run and automate what repeats.
Read more
Managed hosting
We host what we build — deployments, backups, certificates, monitoring and patching, all handled.
Read more
Support & maintenance
A development team on retainer — fixes, patches, improvements and a roadmap, without the payroll.
Read moreOur work
Platforms you can open right now
Not mockups or concept pieces. Every one of these is a live product we designed, built, deployed and still run — click any of them and you are looking at our code.
SaaS platformEvents & street food
Eventifood
A multi-tenant ordering platform for street food traders and event caterers, with per-trader subdomains, live kitchen boards and four payment providers.
Case study eventifood.com
SaaS platformCamping & caravan parks
HolidayPitches
Booking and park-management software for UK campsites and caravan parks, free to install and funded by a small commission on bookings.
Case study holidaypitches.com
SaaS platformCoffee shops & cafés
CoffeesUp
Order-ahead and table ordering for coffee shops, built so the barista stays on the machine and the customer never queues.
Case study View the live build
SaaS platformRestaurants & pubs
TakingYourOrder
Table ordering and payment for restaurants and pubs, with a kitchen board, table plans and per-venue domains.
Case study View the live build
SaaS platformFestivals & events
EventiFestival
Multi-tenant event management for festival and show organisers — traders, pitches, schedules and communications in one place.
Case study eventifestival.com
Website & ecommercePrint & manufacturing
CustomInked
Ecommerce for a UV flatbed printing business, where every product is configured, priced by area and supplied with customer artwork.
Case study custominked.co.uk
How it works
Five stages, no surprises
The same process whether you are spending four figures or six. You always know what is happening, what it costs and what happens next.
- 01
Discovery
A conversation, then a proper look at the process. We map how the work actually flows today — including the workarounds — and agree what success looks like in numbers.
- 02
Scope and fixed quote
You get a written scope, a phased plan and a fixed price. Anything we think is a bad idea, we say so at this stage rather than quietly billing for it.
- 03
Design
Screens before code. You see and click the real thing early, when changing your mind is free.
- 04
Build and review
We build in two-week slices against a live link you can open at any time. No black box, no six-month silence.
- 05
Launch and support
We deploy, monitor and back it up, train your team, and stay on to fix and extend it. Most clients keep us on a small monthly retainer.
Want the detail?
Every stage explained, including what we need from you and how long each part usually takes.
Read our process
Who we build for
Industries we know our way around
We are not sector-locked — but these are the environments where we have already solved the awkward problems, so you are not paying us to learn.
Retail & hospitality
Ordering platforms, EPOS, booking systems and stock control for restaurants, pubs, cafés and independent retailers.
Logistics & field service
Job scheduling, driver and engineer apps, proof of delivery, route planning and live customer tracking.
Engineering & manufacturing
Production tracking, quality records, maintenance schedules and hardware-connected desktop software.
Why IISAW
A development company that behaves like part of your team
Six reasons clients stay with us long after the first project has launched.
You talk to the person building it
No account manager relaying messages to a team you never meet. The developer who writes your code is on the call, so decisions get made in minutes rather than in next week’s update.
We build products, not just projects
Nine of the platforms in our portfolio are live commercial products we designed, built and now run ourselves. We have felt every consequence of a bad architecture decision, which is why we do not make them on your build.
Fixed written quotes
You get a scope and a price before work starts. If the scope changes we tell you what it costs before we do it, not on the invoice afterwards.
Design, build, host and support in one place
One team owns the whole stack, so there is nobody to blame and nothing that falls between two suppliers at 6pm on a Friday.
Modern, boring technology
Next.js, React, TypeScript, Django, PostgreSQL, Qt and C++. Widely used, well documented and easy to hire for — never a framework nobody else can maintain.
Built to be handed over
Readable code, real documentation and a repository you own. If you ever bring development in-house, your new team will thank us.
Hosting
We host what we build — and what you already have
Managed UK hosting for websites and applications, run on the same infrastructure as our own commercial platforms.
- Free SSL, renewed automatically — no expired-certificate warnings
- Daily off-site backups with a tested one-click restore
- Uptime monitoring around the clock, with alerts to us before you notice
- Security patching and dependency updates handled for you
- Staging environment so changes are proved before they go live
- From £15/month for a website, £45/month for an application
Questions
The things everybody asks first
Straight answers, including the ones about money.
What does IISAW do?
IISAW is a UK software and web development company. We build custom software — web applications, desktop applications, SaaS platforms, ecommerce stores and business websites — for companies that need something built around how they actually work rather than an off-the-shelf subscription. We also host and support what we build.
How much does custom software cost in the UK?
A focused internal tool that replaces a spreadsheet process typically lands between £6,000 and £15,000. A departmental system with roles, reporting and integrations is usually £20,000 to £60,000. A commercial SaaS MVP starts around £18,000. Websites run from £1,800 for a well-built brochure site to £9,000 for a large content or ecommerce build. We give you a fixed written quote before anything starts.
How long does a project take?
A brochure website is typically three to five weeks. A first working version of an internal tool is usually six to ten weeks. Larger platforms ship in stages, with something usable in your hands inside the first two months and features added from there. We would rather give you a working slice early than disappear for six months.
Do you work with small businesses as well as large companies?
Both. Some of our clients are single-site independents who needed one process fixed properly; others are multi-site operators running platforms with hundreds of tenants on them. The approach is the same — understand the process, build the smallest thing that solves it, then grow it.
Do I own the software you build for me?
Yes. On bespoke projects you own the source code, the database and the intellectual property once the final invoice is settled. We hand over the repository. There is no lock-in — if you want to take it elsewhere or hire in-house later, you can.
Can you take over a project someone else started?
Often, yes. We will review the codebase first and tell you honestly whether it is worth continuing or whether a rebuild would cost less than the repairs. We have inherited plenty of half-finished builds and we do not charge for the initial look.
Do you host the sites and applications you build?
We do. Managed hosting starts at £15 a month for a brochure site and £45 a month for an application, and includes SSL, daily backups, uptime monitoring, security patching and the deployment pipeline. You can also host it yourself — we will hand over everything you need either way.
Where are you based and do you work remotely?
We are a UK company and we work with clients across the whole of the United Kingdom. Almost everything is done remotely — calls, shared screens, a link to the working build you can open any time. That keeps costs down and means where you are does not limit who you can hire.
More detail on our full FAQ page.
Tell us what you are trying to fix
Send a few lines about the problem. You will get a straight answer from a developer about whether it is worth building, roughly what it costs, and how long it takes — no pipeline, no pitch deck.