Webshark provides bespoke software development for UK businesses, from start-ups in London, Manchester and Edinburgh to established firms across the country. As a bespoke software development company and full-service software development company for the UK market, we design and build custom software, SaaS products, customer portals, web and mobile apps, integrations and AI-powered tools around the way your business actually works. Our teams overlap with the UK working day for stand-ups, demos and calls, and our Bengaluru delivery centre gives you senior engineering at a fraction of typical London day rates. Every custom software development project follows ISO 27001 certified security, CMMI Level 3 processes and UK GDPR-aligned data handling. Prefer a flexible team model? See our software outsourcing services.
Years of Software Engineering Experience
Projects Delivered Across Industries
Countries Served, Including the USA
Active Clients Trusting Our Engineering
Every UK project follows ISO 27001 certified security and CMMI Level 3 processes, with data handling aligned to UK GDPR, the Data Protection Act 2018, Cyber Essentials expectations, PCI DSS and the standards your auditors expect.
From a focused internal tool to a full SaaS platform, our bespoke software development covers strategy, build, integration and support.
Discovery, design, engineering, QA and DevOps delivered by one accountable team.
Software built around your processes, approvals and reporting.
Multi-tenant SaaS with subscriptions, analytics and scaling.
Web platforms and iOS, Android and Flutter apps.
Xero, Sage, HubSpot, Salesforce, Stripe and Open Banking integrations.
Move ageing systems to modern, cloud-ready stacks.
AI agents, document processing and workflow automation.
UK businesses need a partner that is easy to work with, secure and good value. That is how we work.
Your team overlaps with the UK working day, joins your Slack or Teams, works in your Jira and GitHub and sends weekly progress reports. A named project manager is your single point of contact, so working with us feels like working with a software development company down the road.
We follow ISO 27001 and CMMI Level 3 processes, with code reviews, automated testing and CI/CD on every project. Our Bengaluru delivery centre keeps rates well below typical UK agency day rates, so bespoke software development becomes affordable without cutting corners.
A transparent, agile process keeps your project on time, on budget and on target.
Every engagement with our bespoke software development company for UK clients starts with remote discovery workshops held in UK business hours. We map your goals, users, current processes, pain points and the systems you rely on, from Xero or Sage to Salesforce or HubSpot. Within two to three weeks you receive a requirements document, prioritised backlog, success measures and an agreed scope, so stakeholders share one clear picture before any build begins.
Our solution architects turn the discovery findings into a technical blueprint. We design the system architecture, data model, user roles and permissions, integrations and hosting approach, with UK GDPR, security and scalability built in from the start. You receive an architecture document, a milestone roadmap and a clear fixed or phased quote in pounds sterling. Making these decisions early prevents costly rework and gives your finance team a reliable budget.
Our designers create user journeys and screens for each role, then build clickable prototypes of the core workflows. We test them with your staff or customers over video calls in UK hours and refine based on what we learn. You receive approved UI designs and a reusable design system. Validating ideas at prototype stage costs far less than changing finished code and leads to software people actually want to use.
Our bespoke software developers build in two-week sprints, each ending with a demo in UK hours where you see working features and adjust priorities. Every sprint includes peer code reviews, automated tests and continuous integration, so quality stays high as the system grows. You have full visibility through a shared board and access to a repository you own. This rhythm keeps delivery predictable and lets you release value early.
Most UK businesses run on several platforms, so we connect your new software to accounting tools such as Xero, Sage and QuickBooks, CRMs, payment providers like Stripe and GoCardless and Open Banking APIs where relevant. We also migrate data from spreadsheets or legacy systems, cleaning and validating it before cutover. You receive integration documentation and a migration report, and data flows automatically without manual re-keying.
Before go-live our QA team runs functional, regression, performance and security testing, including checks against common OWASP risks and role-based access rules. Your users then complete acceptance testing against agreed scenarios, and we fix anything raised. We plan the release with backups, monitoring and a rollback plan, and provide training and user guides. The outcome is a calm, well-managed launch with minimal disruption to your teams.
After launch we monitor uptime, performance and errors, fix issues within agreed SLAs and apply security patches and framework upgrades. Our team also builds new features, reports and integrations as your business evolves, working from a shared roadmap. You get a named contact whose hours overlap with the UK working day, a ticketing system and monthly reports, so your bespoke software keeps delivering value long after go-live.
Goals, scope and priorities.
Architecture and roadmap.
Tested prototypes.
Sprints with UK-hour demos.
Integrations and migration.
QA, UAT and launch.
Support and new features.
Our software development company works with UK fintech, healthcare, retail, logistics, property, education and professional services firms.
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Each industry has its own regulations and workflows, and we design software around them.
Answers to the questions UK businesses ask before hiring a bespoke software development company: cost, time zones, data protection and contracts.
With Webshark, a focused bespoke business application usually costs £15,000 to £50,000, while SaaS platforms or complex enterprise systems typically range from £50,000 to £200,000. Dedicated engineers start at around £2,800 per month, well below typical UK day rates. Bespoke software development cost in the UK depends on the number of features and user roles, integrations, data migration, security and compliance needs and whether you need web, mobile or both. We provide a detailed quote after discovery.
Bespoke software development means designing and building software specifically for your business, rather than buying an off-the-shelf product. It fits your processes exactly, integrates with your existing tools and can grow as your business changes. You also own the code, avoid per-user licence fees and are free from vendor roadmaps. Common examples include customer portals, operations platforms, booking systems, internal workflow tools and SaaS products for UK businesses.
Yes. Our teams overlap with the UK working day for daily stand-ups, sprint reviews, workshops and ad hoc calls, and project managers are available for urgent issues during UK business hours. Because we are ahead of UK time, our engineers often complete work before your day begins, which shortens feedback cycles. Communication runs through tools you already use, such as Slack, Microsoft Teams and Jira, so collaboration feels like working with an in-house team.
We follow ISO 27001 certified processes and UK GDPR and Data Protection Act 2018 aligned practices. We sign data processing agreements and NDAs, apply data minimisation and role-based access, and can host data in UK or EU cloud regions on AWS, Azure or Google Cloud. For international data transfers we work with your team on the appropriate safeguards. We also build features like consent management, audit trails and data export or deletion to support data subject rights.
A first release of bespoke software usually takes 3 to 4 months. Larger SaaS or enterprise platforms take 6 to 12 months and are delivered in phases, so you start seeing value from early releases while later features are built. Timelines depend on scope, integrations, data migration effort and how quickly stakeholders can review and approve work. We share a milestone plan at the start and demo working software every two weeks.
Webshark has delivered 580+ projects for 280+ active clients across 18+ countries under ISO 27001 and CMMI Level 3 certified processes. As a software development company serving the UK, we combine senior engineers, transparent pricing in pounds sterling and hours that overlap with the UK working day. You work with one accountable team from discovery to support, with clear documentation and full code ownership. Our delivery model offers strong value compared with typical UK agency rates.
Yes. You can add vetted developers, QA engineers, DevOps specialists or designers to your existing UK team on flexible monthly contracts. They join your stand-ups, use your tools and follow your engineering practices, while we handle recruitment, HR and replacement if needed. This is a fast way to increase capacity for a product launch or reduce a backlog without long hiring cycles or permanent headcount. See our IT staff augmentation page.
Yes. We work with businesses across London, from fintech and professional services firms to retailers and property companies, as well as clients elsewhere in the UK. Discovery workshops, sprint reviews and support all run remotely in UK hours through video calls and shared tools, and in-person workshops can be arranged for larger projects. Remote delivery gives London businesses access to experienced bespoke software developers without London agency costs.
For bespoke software development in the UK, we use .NET, Java Spring Boot, Node.js and Python for backends, React, Next.js and Angular for web interfaces and Flutter or React Native for mobile apps. Databases include PostgreSQL, SQL Server and MongoDB, hosted on AWS, Azure or Google Cloud in UK regions where data residency matters. We choose the stack based on your goals, budget, security needs and the skills of your in-house team.
You do. All source code, designs, documentation and infrastructure scripts from your bespoke software project belong to your company once payments are cleared, and our contracts include a clear assignment of intellectual property. Code is stored in repositories you can access throughout, so you are never locked in. We sign NDAs and data processing agreements before discovery and follow ISO 27001 certified processes to protect your business data.
Yes. You can hire dedicated engineers on monthly contracts, from one full-stack developer to a complete team with a project manager, business analyst, developers and QA. This suits UK startups and scale-ups with evolving product roadmaps, and established firms modernising legacy systems in phases. You set priorities, attend sprint ceremonies in UK hours and can scale the team up or down with notice. See our hire full-stack developers page.
Yes. Our software support plans cover application monitoring, bug fixes, security patches, framework and dependency upgrades, performance tuning and new features, with agreed response and resolution times. Support runs through a ticketing system and a team whose hours overlap with the UK working day, with priority handling for critical incidents. You receive monthly reports and a rolling roadmap, so your bespoke software stays secure, compliant and aligned with business goals.