Custom Software Development & Website Design Company in Sri Lanka
Trusted by government agencies, million dollar companies, startups, SMEs and individuals
About 3iTeam International
3iTeam International is a Colombo-based software development company in Sri Lanka building end-to-end web, mobile, and cloud solutions for clients in Sri Lanka, the UK, US, Canada, Maldives, Papua New Guinea, South Africa, and Germany. Our work spans healthcare, HR, hospitality, manufacturing, and marketplaces — including a diabetes app nominated for the Commonwealth Digital Health Awards. We've delivered for organizations like The Open University of Sri Lanka, Arpico, Euro Global Maldives, Canadian tech firms and startups, Major companies in USA and Universities in UK, combining solid engineering with real-world business needs.
What We Do
Comprehensive software development services from Sri Lanka, designed to transform your business: custom software, mobile and web platforms, cloud & AI integrations, website design and SaaS product engineering.
Custom Software Development
Tailored solutions built from the ground up to meet your unique business requirements, from enterprise systems to specialized tools.
Mobile and Web Platforms
Native and cross-platform applications that deliver seamless experiences across iOS, Android, and web browsers.
Cloud & AI Integrations
Scalable cloud infrastructure and intelligent AI-powered features that modernize your operations and drive automation.
Website Design
Modern, responsive websites that combine stunning aesthetics with user-centric design and optimized performance.
SaaS Product Engineering
End-to-end development of software-as-a-service platforms with multi-tenancy, billing, and enterprise-grade security.
What Our Clients Say
We're true partners – not vendors.
We believe in building lasting relationships with our clients. Every project is a collaboration where your success becomes our mission. Don't just take our word for it — hear directly from the businesses and organizations we've helped transform.
Partnering with Yohan Weerasinghe and the 3Iteam has been a game-changer for Peresia. Their team demonstrated outstanding technical skill, creativity, and reliability in building a seamless, scalable platform from the ground up. I'm incredibly impressed with their professionalism and highly recommend 3Iteam to any company seeking top-tier software development expertise.
Dr. Gus Lazopoulos
CEO
Peresia Technologies Inc.
Partnering with Yohan Weerasinghe and the 3Iteam has been a game-changer for Peresia. Their team demonstrated outstanding technical skill, creativity, and reliability in building a seamless, scalable platform from the ground up. I'm incredibly impressed with their professionalism and highly recommend 3Iteam to any company seeking top-tier software development expertise.
Dr. Gus Lazopoulos
CEO
Peresia Technologies Inc.
I had the pleasure of working with 3iTeam International to develop my language-learning mobile application, and I couldn't be more satisfied with the results. From start to finish, their team demonstrated outstanding work ethics, professionalism, and deep technical expertise. They took the time to truly understand my vision, offered valuable insights throughout the development process, and delivered a high-quality product that exceeded my expectations. I highly recommend 3iTeam International to anyone looking for a reliable and skilled software development provider.
Prabath Samarawikrama
CEO
Cyber Sense (Pvt) Ltd
Featured Projects
Real products, real impact. See how we've helped businesses scale with custom software solutions.
Peresia
Marketplace Platform
Client: Peresia Technologies (US / Canada)
Type: Service marketplace & freelancer platform
Overview
Peresia is a managed marketplace that connects serious clients with vetted freelancers and service providers. The platform had to handle onboarding, project management, secure payments, and dispute-safe workflows — without feeling heavy for users.
ExpoSpice
Learning & E-Commerce Platform
Client: The Open University of Sri Lanka
Collaborations: Department of Export Agriculture, Department of Cinnamon Development
Type: Educational technology & marketplace platform
Overview
Developed under Sri Lanka's 'Lifelong Learning for Farmers' initiative by the Open University of Sri Lanka (OUSL), ExpoSpice empowers export-agriculture stakeholders, closing communication gaps and extending vital tech knowledge to more than 300,000 farming families across 17 districts.
Frequently Asked Questions
Straight answers about working with a software development company in Sri Lanka.
What does 3iTeam International do?
3iTeam International is a software development and website design company based in Colombo, Sri Lanka. We build custom software, web and mobile applications, cloud and AI integrations, SaaS products and business websites for startups, SMEs, enterprises, universities and government organisations.
Where is 3iTeam International located?
Our office is in Kottawa, Colombo, Sri Lanka. We work with clients across Sri Lanka and remotely with companies in the United Kingdom, United States, Canada, Maldives, Papua New Guinea, South Africa and Germany.
How much does custom software development cost in Sri Lanka?
Custom software is quoted after a free discovery call because cost depends on scope, integrations and timeline. As a guide, our business websites start from LKR 80,000, and custom web and mobile platforms are scoped in phases so you only pay for what you need. Sri Lankan engineering rates are typically 40 to 60 percent lower than equivalent teams in the UK, USA or Australia, without compromising on quality.
How long does it take to build a custom web or mobile application?
A minimum viable product typically takes 8 to 16 weeks. Larger platforms such as marketplaces, e-learning systems or SaaS products are delivered in milestones over 4 to 9 months. We share working builds throughout so you can see progress and give feedback early.
Which technologies does 3iTeam use?
We build with modern, well-supported stacks: Next.js and React for web, Flutter and React Native for iOS and Android, Node.js APIs, PostgreSQL and Firebase for data, and Amazon Web Services for cloud hosting. AI features are integrated through leading large language model and machine learning APIs.
Do you work with startups and government organisations?
Yes. We have delivered for The Open University of Sri Lanka, Arpico, Euro Global Maldives, Peresia Technologies in Canada, and startups and universities in the UK and USA. Our ExpoSpice platform serves more than 300,000 farming families across 17 districts in Sri Lanka.
Will I own the source code and intellectual property?
Yes. On completion and final payment, all source code, designs, domain names and hosting accounts are transferred to you. We can continue to maintain and host the product under a support agreement if you prefer.
How do I start a project with 3iTeam?
Use the Start a Project button on this website or email contact@3iteam.com. We reply within one business day, arrange a short discovery call, and send a written proposal with scope, timeline and cost.