Software Development Company in the UK
Custom software, web and mobile app development for UK businesses, with a UK office in Poole and rates from $35 per hour.
Your UK Software Development Partner
Three Circle builds custom software, web applications and mobile apps for UK start-ups and businesses. We have a UK office address in Poole, Dorset, and our team works remotely with clients across the United Kingdom.
A UK office address in Poole, Dorset, and a UK phone line: +44 7700 179177.
Web, mobile, .NET, AI and cloud from one team.
Including an HR platform with 5,000+ users and a fitness app with 1,000+ downloads.
Software Development for UK Businesses
Portals, dashboards and internal tools built around your processes.
Customer-facing web apps and iOS, Android and Flutter mobile apps.
Software for fintech, healthcare, property, logistics, retail and more.
Scalable applications on Azure and AWS.
Regular demos, progress reports and one point of contact.
Maintenance, monitoring and improvements after launch.
Work with a Development Company with a UK Office
Book a free online consultation and get clear advice, a realistic timeline and a transparent quote.
What We Build for UK Businesses
From start-ups to established companies, we build software that helps UK businesses grow:
Customer Portals and SaaS
Secure web platforms for your customers and partners.
Mobile Apps
iOS, Android and Flutter apps for customers and field teams.
Legacy Modernisation
Older systems upgraded to modern, supported technology.
Why Choose Three Circle in the UK?
Three Circle is a software development company with a UK office address in Poole, Dorset, working remotely with businesses across the United Kingdom, so you get clear pricing, UK-hours communication and one team that delivers complete products.
UK Office in Poole:
Lytchett House, Poole, Dorset, with a UK phone line: +44 7700 179177.
Full-Stack Expertise:
.NET, React, Angular, Node.js, Python, Flutter and native mobile.
Ongoing Support:
We stay with you after launch.
UK and US Presence:
A UK office in Poole and a US-registered company in Texas.
Transparent Communication:
Regular demos, clear reports and honest estimates.
Reliable Delivery
Clear milestones keep your project on schedule.
Software Development Services for UK Businesses
Three Circle is a custom software development company founded in 2019, with a UK office address in Poole, Dorset, and a registered company address in Sachse, Texas. Our team of 15–30 developers, designers and QA engineers works with start-ups and businesses across the United Kingdom through video calls, shared project boards and regular demos.
Custom Software Development
Business applications, customer portals and internal tools built around how your team works. See our custom web development services.
ASP.NET and .NET Development
Secure business applications and APIs on Microsoft .NET, plus .NET migration for legacy systems. You can also hire dedicated .NET developers.
Mobile App Development
iOS, Android and Flutter apps for customers and field teams. See our mobile app development services.
MVP Development for UK Start-ups
Get a free clickable design of 5–6 key screens with no obligation. A starter MVP costs $3,000, or $1,500 when you claim the free design. See our MVP development offer.
Websites and eCommerce
Website design and development, WordPress and Shopify stores, with SEO and ongoing maintenance.
AI and Chatbot Development
AI chatbots and AI integration that automate support and internal work.
Why UK Businesses Choose Three Circle
- UK office address: Lytchett House, 13 Freeland Park, Wareham Road, Poole, Dorset, BH16 6FA, with a UK phone line.
- Clear pricing: rates from $35 per hour and projects from $1,000, with a written estimate before work starts.
- Proven remote delivery: two-week sprints, demos and progress reports, so you always know where your project stands.
- One team for everything: design, web, mobile, cloud and support from the same team.
- In business since 2019: real products in use, from an HR platform with 5,000+ users to apps with 1,000+ downloads.
What UK Clients Say
“Excellent service. The response is quick and swift and they listen and execute work exactly as you want.”
Bertram Chisimo (verified Trustpilot review, United Kingdom)
“Reliable, good communication and service, honest, trustworthy.”
Charles (verified Trustpilot review, United Kingdom)
Three Circle is rated 4.4/5 on Trustpilot from 11 client reviews in the UK, US, Germany and Canada.
Industries We Serve Across the UK
We build software for fintech and financial services, healthcare, property and real estate, retail and eCommerce, logistics and courier, insurance, construction and education. See all industries we serve.
Where We Work
We work with businesses anywhere in the United Kingdom, from London, Manchester and Birmingham to Bristol, Leeds, Glasgow and the South Coast. Projects run remotely, and calls and demos are scheduled in UK time.
Three Circle (UK office)
Lytchett House, 13 Freeland Park, Wareham Road, Poole, Dorset, BH16 6FA
Phone: +44 7700 179177
Email: info@threecircle.io
Software Projects We Have Built
HRM Platform and Mobile App Used by 5,000+ Employees
For a growing organisation we built a complete HR management platform: a web admin dashboard (React and Angular) for employee records, attendance and office operations, a Flutter mobile app for attendance and leave requests, and an ASP.NET Core API behind both. Result: more than 5,000 active users.
Optimized Strength: AI-Powered Fitness App with 1,000+ Downloads
Optimized Strength is a cross-platform fitness app built with Flutter for iOS and Android and a secure ASP.NET Core back end. It gives users more than 1,300 exercises, personalised AI coaching and progress tracking with visual charts. Result: 1,000+ downloads.
Careerails: AI Recruitment Platform with an iOS App and Node.js Back End
Careerails modernises hiring with AI candidate matching, job distribution and visual hiring pipelines. We built the platform on a scalable Node.js back end and delivered a native iOS app for the platform.
See more in our courier ERP case study and our portfolio.
Want results like these? Tell us about your software project and get a free consultation.
Our Software Development Process
- Discovery: an online workshop to understand your goals, users and budget.
- Proposal: scope, timeline, team and a clear price.
- Design: wireframes and prototypes you can review before development.
- Development: two-week sprints with regular demos.
- Testing and launch: quality, security and performance checks before go-live.
- Support: maintenance, monitoring and new features.
Software Development Engagement Models and Pricing
Choose the way of working that fits your budget and timeline:
Fixed-Price Projects
Best for MVPs and projects with a clear scope. You agree on price, timeline and features before development starts.
Time and Materials
Flexible for products that will evolve. You pay for actual development time and can change priorities after every sprint.
Hire Dedicated Developers
Add experienced developers, designers and QA engineers to your team on a monthly basis for long-term development.
Want a quick budget? Use our app development cost calculator or request a free estimate.
Ready to Start Your Software Project?
Book a free consultation and get a clear plan and quote.
- FAQs
Frequently Asked Questions
Yes. Our UK office address is Lytchett House, 13 Freeland Park, Wareham Road, Poole, Dorset, BH16 6FA, and our UK phone number is +44 7700 179177. Our team works remotely with clients across the United Kingdom.
Custom software, ASP.NET and .NET development, web applications, websites and eCommerce, iOS, Android and Flutter apps, MVPs, AI chatbots and AI integration, cloud solutions, UI/UX design and software consulting.
We work remotely using video calls, shared project boards and two-week sprint demos, with one point of contact who keeps you updated.
Our rates start from $35 per hour and projects start from $1,000. A starter MVP costs $3,000, or $1,500 with our free clickable design. Try our cost calculator or request a free estimate.
Yes. We build first products for start-ups, often starting with our MVP offer, and extend or modernise systems for established companies.
Yes. We agree meeting times and working-hour overlap with each client at the start of the project, and schedule calls and demos in UK time.
No. We work remotely with businesses anywhere in the United Kingdom, as well as in the United States and other countries.
Yes. We provide maintenance, security updates, monitoring and new features after your software goes live.