We chose to work with them, as they really understood our vision as a social enterprise from the very beginning. We know they always go the extra mile, and we really do have a lot of trust in them. The team really met our expectations. They always offer a professional & personal service. They have made the whole experience of app development very approachable.
Software Development
Need scalable and high-performing software solutions? Our leading software development services empower UK businesses with digital transformation apps, quality assurance, and measurable return on investment.
Trusted by 400+ SMEs and enterprises in 11+ years as a reliable tech company with expert software developers in UK.
300+
Software developed
& deployed
500+
Clients served
& satisfied
11+
Years of helping
businesses
Top-Rated Software Development Company London for UK Businesses
Square Root Solutions is a reliable UK software development company with a strong in-house team of certified software engineers who understand what it takes to create best-in-class software solutions. With 11+ years of industry experience, we support UK businesses by delivering high-performance software services that match modern needs in 2025.
As a UK digital transformation partner, we help companies build scalable systems using ISO-certified development practices, Agile methodologies for scalable delivery, and computer-aided software engineering tools. Our award-winning software team handles everything from designing and implementing to coding, features testing, IDE setup, version control, and documentation standard maintenance.
We break down every major phase into smaller parts to decompose complex projects and lower cost without losing quality. Our custom software engineering agency is trusted for database design, software engineering expertise, and innovation in AI and cloud computing technologies.
With 98% client satisfaction score and 5★ ratings on Clutch & Trustpilot, businesses choose us as their trusted software partner for SMEs. Every project is handled by dedicated UK-based project managers from our London office, ensuring clear communication and timely delivery.
Software Development Services We Offer
We deliver end-to-end software development services for startups, SMEs, and enterprises, building scalable business applications, custom digital solutions, cloud-native application services, and microservices-based architectures with multi-platform support across Web, iOS, and Android.
Bespoke Software Development
As a leading software development agency London, we build bespoke software and application systems personalised for business needs, with 100% custom-coded solutions crafted to achieve exact KPIs and faster implementation.
Mobile App Development
Our innovative mobile software development company UK creates high-performing Android & iOS app development projects, delivering cross-platform mobile applications and native apps with 98.9% crash-free rates & fast deployment across devices.
Software Development Consulting
Our prominent software strategy experts and tech stack advisors offer reliable IT consulting company services, ensuring 90% project scoping accuracy and helping you reduce software rework cost by 40% before development starts.
Software Product Development
Our trusted software product development company supports the entire product journey, from MVP to full product lifecycle, including cloud-native product builds that scale seamlessly to over 1M users with 99.9% uptime.
Software Modernisation
We specialise in legacy system upgrades, codebase refactoring, and platform migration, transforming outdated software into high-performance cloud solutions with zero data loss and 2x faster performance post-upgrade.
Web Software Development
As a reputed web software engineering company in London, UK, we build responsive web apps, interactive business portals, and web-first SaaS platforms optimised for load speeds under two seconds and secured with strong encryption.
Our Portfolio
Why Choose Us as Your UK Software Development Partner
We are a UK-based next generation software development agency trusted by enterprises and startups. Our local development consultants, certified tech experts, and technical architects drive collaborative software building backed by GDPR-compliant development practices. With dedicated Project Managers, QA engineers, and UK project delivery teams, we deliver cost-effective, scalable business software for enterprises. Our local software engineering talent ensures smooth execution with 30% faster time-to-market using agile sprints.
We also specialise in software development for startups, helping new businesses launch faster. With 10+ years of experience with UK clients and a 96% client retention rate, we proudly stand as a software industry leader offering trusted software development services designed for compliance and growth.
Our End-to-End Software Development Process
We deliver full-cycle software development in London by following a structured 7-step lifecycle that ensures speed, quality, and transparency at every stage.
Software Architecture and Planning
We begin by designing a scalable software architecture and planning clear technical workflows to match your project goals.
Agile Sprint Planning and Delivery
Our skilled team follows an Agile development methodology, breaking the project into sprints to enable faster execution with weekly deliverables.
Software Design to Deployment
We handle everything from interface design to backend setup, maintaining seamless flow from software design to deployment.
Iterative Development and Testing
Through iterative development and testing, our team releases features in small, manageable batches, ensuring 99.9% bug-free deployments through rigorous QA and testing services.
Deployment and DevOps Pipeline
Using automated CI/CD pipelines for faster and safer releases, we launch applications efficiently while maintaining system stability.
Post-Launch Support and Updates
Our maintenance and support services ensure applications remain updated, optimized, and secure with 24/7 support availability post-launch.
Real-Time Client Feedback Loops
We conduct weekly sprint demos with real-time client feedback, making sure adjustments and improvements are continuous based on your evolving business needs.
By combining agile sprint planning and delivery, robust testing, and proactive support, we provide reliable software solutions designed to drive results for your business.
Tech Stack and Tools We Use in Software Development
We build strong, scalable applications by combining a modern software technology stack with secure and high-performing development practices. We actively work with over 40+ technologies supported to deliver future-ready solutions across industries.
Android
React Native
Flutter
Swift
IOS
Kotlin
Our team builds apps with cross-platform mobile app frameworks like Flutter and React Native for faster and unified development.
Hosting and Infrastructure: All projects follow UK- compliant hosting and infrastructure policies, with GDPR-compliant cloud storage and infrastructure for complete data security.
Security: We integrate enterprise-level security tools like SSL, OAuth, and IAM to protect user data and maintain system trust.
.NET
GraphQL
Firebase
Golang
Laravel
Node
PHP
Python
Java
We design secure scalable backend infrastructure using Node.js, Django, and Spring Boot, ready to support millions of users.
Hosting and Infrastructure: All projects follow UK- compliant hosting and infrastructure policies, with GDPR-compliant cloud storage and infrastructure for complete data security.
Security: We integrate enterprise-level security tools like SSL, OAuth, and IAM to protect user data and maintain system trust.
Angular
HTML
React
Vue.js
Javascript
TypeScript
CSS
Websites and apps built by us achieve frontend load speeds optimized by 45%, helping you offer faster user experiences across devices.
Hosting and Infrastructure: All projects follow UK- compliant hosting and infrastructure policies, with GDPR-compliant cloud storage and infrastructure for complete data security.
Security: We integrate enterprise-level security tools like SSL, OAuth, and IAM to protect user data and maintain system trust.
Angular
NodeJS
React.js
Vue.js
Ruby/RoR
ASP.Net
Java
Laravel
Express.js
Django
PHP
Python
Hosting and Infrastructure: All projects follow UK- compliant hosting and infrastructure policies, with GDPR-compliant cloud storage and infrastructure for complete data security.
Security: We integrate enterprise-level security tools like SSL, OAuth, and IAM to protect user data and maintain system trust.
AWS
Azure
Google cloud platform
Microsoft Dynamics
IBM Cloud
Oracle Cloud
DigitalOcean
Heroku
We specialise in cloud-native software development on AWS, Azure, and GCP, ensuring 100% cloud-native and scalable architecture with 99.99% uptime with AWS and Azure hosting.
Hosting and Infrastructure: All projects follow UK- compliant hosting and infrastructure policies, with GDPR-compliant cloud storage and infrastructure for complete data security.
Security: We integrate enterprise-level security tools like SSL, OAuth, and IAM to protect user data and maintain system trust.
Android
IOS
Linux
Windows
macOS
Chrome OS
Hosting and Infrastructure: All projects follow UK- compliant hosting and infrastructure policies, with GDPR-compliant cloud storage and infrastructure for complete data security.
Security: We integrate enterprise-level security tools like SSL, OAuth, and IAM to protect user data and maintain system trust.
MSSQL
MySQL
PostgreSQL
Oracle Database
SQLite
IBM Db2
Amazon RDS
MongoDB
Amazon DynamoDB
Elasticsearch
Google Spanner
Hosting and Infrastructure: All projects follow UK- compliant hosting and infrastructure policies, with GDPR-compliant cloud storage and infrastructure for complete data security.
Security: We integrate enterprise-level security tools like SSL, OAuth, and IAM to protect user data and maintain system trust.
Docker
Jenkins
Kubernetes
GitHub Actions
Hosting and Infrastructure: All projects follow UK- compliant hosting and infrastructure policies, with GDPR-compliant cloud storage and infrastructure for complete data security.
Security: We integrate enterprise-level security tools like SSL, OAuth, and IAM to protect user data and maintain system trust.
Industries We Serve Across the UK
We drive digital transformation for UK industries by offering vertical-specific and scalable software development solutions. Our expertise in UK sector-specific applications enables us to deliver custom industry tools that match each sector’s compliance needs.
We build regulatory-compliant software for UK firms, using industry-specific solution blueprints to speed up delivery. Our teams ensure smooth integration with legacy systems and support sector-wise API integration capability, having successfully digitally empowered 12+ industries across the UK.
Next Generation Software Development Solutions
We offer next-gen software innovation with future-ready app development practices that enable intelligent business automation. Our expertise in decentralized application architecture and cloud-first strategy for software helps businesses adopt digital transformation accelerators for SMEs and enterprises at scale.
Artificial Intelligence
We build AI-powered software using advanced machine learning algorithms and predictive analytics tools. Our natural language processing (NLP) and computer vision expertise help UK firms achieve 30% improvement in decision accuracy and 50% reduction in manual tasks, while ensuring GDPR-compliant AI model deployment with scalable AI modules for enterprise use.
Blockchain
We engineer decentralised applications (dApps), smart contract systems, and private blockchain networks using distributed ledger technology (DLT). Our blockchain-based software solutions ensure 100% traceable digital transactions, zero-downtime smart contract execution, and multi-chain support across Ethereum, Hyperledger, and Polygon, delivering end-to-end encrypted data validation.
Cloud Computing Solutions
We implement cloud-native architecture using AWS, Microsoft Azure, and Google Cloud, creating multi-tenant SaaS environments. Our cloud data migration tools and serverless computing methods ensure secure cloud software delivery, maintaining 99.99% uptime and achieving 60% infrastructure cost savings. We support real-time scalability through Tier-3 compliant UK cloud data centers.
Digital Transformation
Our legacy system modernisation and process automation software reshape operations through end-to-end digital enablement. Using workflow transformation tools and legacy software reengineering, we deliver a 40% increase in operational efficiency and enable 3X faster product releases with full-stack digital architecture setup and 100% paperless process adoption.
DevOps Integration
We embed continuous integration (CI), continuous deployment (CD), and infrastructure as code (IaC) within our DevOps pipelines. Leveraging Docker & Kubernetes, we offer cloud DevOps software solutions that achieve 70% faster deployment cycles, 99.5% system uptime, and 80% fewer manual deployment errors with end-to-end release automation.
Cyber Security
Our security-first approach includes penetration testing, threat detection systems, and secure authentication protocols. Through data encryption tools and GDPR compliance software, we deliver secure software lifecycles, conduct cyber risk audit reports every quarter, ensure 100% GDPR and ISO 27001 compliance, and achieve 99% risk mitigation for app-level breaches.
At Square Root Solutions, we combine proven experience, advanced technologies, and agile delivery to help UK businesses unlock real value through custom software development.
Whether you need enterprise software, mobile applications, or full-scale digital products, our UK-based software development company is ready to bring your vision to life with precision, speed, and compliance at every step.
Let’s talk
Let’s hear it from our clients!
The trust and love of our clients have placed us at the forefront of bespoke software development in the UK.
We are very impressed by the way the Students information app has turned out to be. The app was developed keeping in mind as an excellent resource for students as they start with a new academic year in unprecedented times. We must say that they has done a fantastic job; our students can totally rely upon the app for a substantial experience.
Declan Doyle
Vice president for Development and Research, Institute of Technology Carlow.
Meet the minds behind our magic.
A team of creativity, guidance, and innovation. Discover more about the people who make your ideas come alive.
Ciarán Stone
CEO & Founder
Raza Noorani
CTO
Ciara Herity
Account Manager
Sarah Scully
CMOHave a unique software idea? Let’s make it happen!
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We’re trusted by startups, SMEs and established brands alike
Frequently Asked Questions
Let's read some answers to frequently asked questions to understand more about bespoke software development in the UK.
A software development company creates, designs, tests, and maintains software products and solutions. It delivers custom applications, enhances system performance, integrates technologies, and provides ongoing support. Companies focus on building web, mobile, cloud, and enterprise software to meet specific client needs.
UK businesses choose software development companies in 2025 to access specialized expertise, accelerate digital transformation, and build custom solutions. They seek competitive advantages through advanced technologies, improved efficiency, and scalable systems. Companies also offer cybersecurity, cloud integration, and ongoing technical support to meet evolving market demands.
The development of a software app in the UK typically costs between £20,000 and £150,000. Costs vary based on app complexity, features, design, platform choice, and development team size. Simple apps start around £20,000, while complex enterprise applications can exceed £150,000 depending on technical requirements.
Developing a software application typically takes between 3 and 9 months. The timeline depends on the app’s complexity, feature set, design requirements, and team size. Simple applications can be completed in about 3 months, while complex enterprise solutions may take 9 months or longer.
Square Root is one of the UK’s most trusted software development companies due to its proven track record, custom solutions, transparent processes, and client-focused approach. The company delivers high-quality applications, ensures clear communication, maintains strict security standards, and consistently meets project deadlines, earning strong client trust.
We follow strict security measures including data encryption, secure coding practices, regular vulnerability assessments, and multi-factor authentication. Our expert teams implement access controls, monitor systems continuously, comply with GDPR regulations, and conduct employee security training to protect client information and maintain system integrity.
Yes, we provide comprehensive support and maintenance services after deployment. Our services include bug fixes, system updates, performance monitoring, security patches, and feature enhancements. We ensure applications remain secure, functional, and aligned with evolving business needs through regular updates and dedicated technical support.