Turn your ideas or passion into reality — with By Design UK

Complex Operations SaaS Build — £199,997 – £430,000

SaaS Development

Complex Operations SaaS Build

Mission-critical, multi-system, AI-native platforms for operations that can’t fail.

£199,997 – £430,000Fixed price
30–45 weeksTimeline
100% yoursCode & accounts
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What is SaaS? SaaS (“Software as a Service”) is what you already use every day — Spotify (music on subscription, not bought), Netflix, an ebook app like Kindle, Duolingo, your online banking app, Uber or Deliveroo, Canva. Customers log in and pay monthly instead of buying a one-off product. Think: the software running a hospital booking system or a logistics network end-to-end.

Who this is for

Logistics, healthcare, finance, energy and public-sector operations where the platform runs the business and downtime is not an option.

Why this price is worth it

  • A senior product team — design, engineering, DevOps — at a fixed price, for the cost of one mid-level hire
  • AI-accelerated build: we ship in weeks what agencies quote in months, and pass the saving on
  • Everything is yours: code in your GitHub, cloud in your name, no licence fees, no lock-in
  • Tackly.co.uk — our own multi-toolkit SaaS — is the proof we can take an idea to a live, paying platform

Cheaper quotes usually strip out design, copy, SEO or testing and add them back as extras — or leave you with something you can’t build on. Bigger agencies charge for account managers and overhead. This price is the work, done properly, once.

Everything included

  • Multi-system architecture
  • AI-native workflows
  • Legacy + partner integrations
  • Real-time data & event processing
  • Security, audit, compliance
  • Rigorous QA + load testing
  • Resilient, monitored infrastructure
  • Runbooks, training, handover

How it works

  1. Discovery workshop — users, workflows, integrations and the commercial model.
  2. Fixed-price scope — features, screens, data model and milestones written down.
  3. Design & architecture — clickable prototype and technical design signed off.
  4. Build in sprints — working software every two weeks, you test as we go.
  5. Launch & handover — your cloud, your GitHub, documentation, training, support plan.

Compare SaaS Development

Package Price
Starter MVP SaaS Build £18,000 – £60,000 Find out more
Launch SaaS Build £44,997 – £105,000 Find out more
Growth SaaS Build £64,997 – £155,000 Find out more
Scale SaaS Build £119,997 – £270,000 Find out more
Complex Operations SaaS Build £199,997 – £430,000 This page
Enterprise Custom SaaS Build £349,997 – £650,000+ Find out more

Questions people ask

How do you keep the price fixed?

A thorough discovery phase and a written scope; changes are quoted separately.

On-premise?

Cloud by default; hybrid on request.

Support?

Growth Partner support plan recommended.

Why choose BDUK over a cheaper developer?

Because the price includes design, engineering, SEO, testing and handover done by one senior UK team at a fixed price — cheaper quotes usually leave out half of that and add it back as extras, or leave you with something you can’t build on.

Is the price really fixed?

Yes. The proposal lists every deliverable; that is the price. Anything outside it is quoted before we do it, never slipped in.

Tell us about your project — fixed price and timeline within 24 hours.

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