Custom Software Development for UK Businesses

GDPR-compliant web apps, mobile apps, AI solutions, and cloud infrastructure for UK startups, SMEs, and enterprises — delivered by senior engineers aligned to GMT.

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Tell us about your project and we will respond within 4 hours (GMT).

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80+

UK Clients Served

12+

Years Experience

100%

GDPR Compliant

4hr

GMT Response Time

Software Development Services for UK Companies

Delivered by certified engineers with deep domain expertise — on time, within budget.

one

Custom Web Application Development

React, Node.js, .NET, and Python web apps — GDPR-compliant, cloud-native, and built to UK enterprise standards.

Mobile App Development

iOS and Android apps with React Native and Flutter — App Store and Google Play ready, UK-market optimised.

AI & Machine Learning

Predictive analytics, NLP, and generative AI to automate operations and unlock competitive advantage.

Cloud & DevOps (AWS / Azure)

UK data residency, cloud migration, Kubernetes, CI/CD, and 24/7 infrastructure management.

Fintech & Open Banking

FCA-aware fintech platforms, Open Banking API integration, PSD2 compliance, and payment gateway development.

Hire Dedicated Developers

GMT-aligned senior engineers — React, Node.js, Python, Java, .NET — integrated into your team from day one.

E-Commerce Development

Shopify, Magento, and custom e-commerce with UK payment gateways (Stripe, Worldpay, Klarna).

SaaS Product Development

Multi-tenant SaaS platforms with UK data residency, subscription billing, and scalable architecture.

IT Consulting & Digital Transformation

Technology strategy, architecture reviews, and digital transformation for UK public and private sector.

Why UK Companies Choose RannLab

GMT-Aligned Working Hours

Our teams work GMT/BST overlap hours. Daily standups, real-time Slack, and weekly demos — no timezone friction.

GDPR & UK Data Protection

All projects built with GDPR compliance by design. UK data residency options available on AWS London and Azure UK South.

FCA-Aware Fintech Expertise

Deep experience with UK fintech regulation, Open Banking, PSD2, and FCA sandbox environments.

Transparent Fixed-Price Contracts

No hidden costs. Fixed-price for defined scope, T&M for agile. GBP invoicing available.

Senior Engineers, No Juniors

5+ year experienced engineers on every project. Rigorous technical screening and background checks.

Full IP Ownership & NDA

Complete IP transfer to your company. We sign NDAs before any project discussion.

What Our Clients Say

4.9/5 average rating from 87 verified reviews

""RannLab built our Open Banking platform in 5 months. The team understood FCA requirements and delivered a production-ready system. Exceptional technical quality.""
J
James Thornton
CTO, Fintech Startup, London
""We hired 3 dedicated developers from RannLab for our NHS-integrated platform. They are technically brilliant, communicate clearly, and deliver on time every sprint.""
E
Emma Clarke
Head of Product, HealthTech Company, Manchester
""Our custom Shopify app was delivered in 6 weeks, exactly as specified. The team was professional, responsive, and the code quality is excellent.""
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Oliver Bennett
Founder, E-Commerce Brand, Birmingham

Frequently Asked Questions

Yes. All our development practices are GDPR-compliant by design. We offer UK data residency on AWS London and Azure UK South regions.

Yes. Our teams work GMT/BST overlap hours with daily standups, real-time Slack, and weekly video demos.

Project-based work starts from £12,000 for an MVP. Dedicated developer rates are £28–45/hour depending on seniority. GBP invoicing available.

Yes. We have experience with NHS-integrated platforms, local authority systems, and G-Cloud framework requirements.

Yes. We have built multiple Open Banking platforms with PSD2 compliance, FCA sandbox testing, and major UK bank API integrations.

Ready to Build Something Great?

Get a free consultation with our United Kingdom team today. No obligation, no sales pressure.

Call Us

+44 20 3290 0000

Email Us

uk@rannlab.com

Book a Call

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Get Your Free UK Consultation

Tell us about your project and we will respond within 4 hours (GMT).

By submitting you agree to our Privacy Policy. No spam, ever.