Our suite of scalable web products and services help you build, secure, and deliver mobile responsive websites, customized e-commerce solution, performant cloud systems, enterprise-grade mobile apps in less time. Read more for our humble beginnings as a freelance web designer in Singapore.
Building a better internet at scale.
BETTER WEB / BETTER RANK / BETTER SECURITY
Website Design Ecommerce Solution Mobile Applications Custom Development Cloud Systems Artificial Intelligence Progressive Web Apps Enhanced Security
Welcome to Calvin Seng Co
Established since 2008, Calvin Seng Co is a mobile app development & web development company from Singapore. We strive to offer a better-honest-no bullshit experience in using the latest web technologies for the multitudes of small-to-large business owners, multinational corporates and beyond to launch, grow and navigate through digital adoptions. Our in-house web designers and mobile app developers help you digitalise and transform the way businesses operate, bringing in new revenue sources, improved customer experiences and streamlined processes via our 6 pillars of Digital Mastery.
Website Design
We own the capabilities to develop stunning SEO-friendly corporate website design, web portals, e-Commerce web design, customized web solutions and mobile apps that are modern, performance obsessed and user-friendly.
Ecommerce Solution
Spend more time on what matters. Our PSG Grant pre-approved ecommerce web development takes care of the rest, with a suite of powerful online selling features for every type of industry. Secure payments, configurable shipping options, subscriptions, and more.
Cross-Platform Applications
Develop a progressive web app (PWA) that uses modern web capabilities to deliver an app-like experience to users with Ionic Framework that even big brands are jumping on. Work for every user, regardless of browser choice. Highly optimized, reliable, and accessible.
Search Engine Optimization
Our SEO services are based on practice and result implementation that guarantees propelling your business forward. Our team work to develop the most effective course of action and using solution that best supports your overall strategy.
Managed Services
Adhere to the best security standards and web practises, we provide an array of IT services encompassing Enhanced Security, Content Management, Managed Hosting and Domain to simplify your day-to
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Artificial Intelligence
Harness the power of OpenAI, the leading provider of cutting-edge AI language models to help your business automate the rudimentary tasks such as Idea Generation, Qualifying Candidates, Automated Responses, Legal Documents Verification.
Powering incredible app experiences at the world’s best companies
Get up-to 50% funding for your next ecommerce website development project. We support website customization and mobile apps development.
Real Clients' Experience
Voted #1 On Google
As The Best Web Designer In Singapore
The web design and mobile app development industry is changing, which is why we make sure our clients are ready to change with it. A world-class app is the result of world-class products and services. We are now a full stack web development company.
I am engaged for my tourism business website, they offered me a wonderful services with great support! Highly recommended!
I got connected with Calvin Seng by coincidence out of desperation searching for a good wordpess webmaster and indeed Calvin and team has proven beyond expectation, always there to save me from mess I made on my website 24/7. Deserves more than 5 stars !!!
I found Calvin on internet search and glad that i found him. They are very patient with our requests and have great knowledge and provide us the greatest service. We recommend to everyone who needs web designer. Thank you Calvin.
Calvin is a very polite and helpful person. I used his PayNow plugin for my website and when I decided it wasn't for me, he refunded me with no questions asked and was highly responsive throughout our conversation!
Calvin is an absolute gem of a person to work with. I had engaged his services to create a new website for my business and I've been very happy with the result. Always available for inquiries, very friendly and he guides you from start to finish along each step of the way. Pls don't hesitate to engage his services if you're considering. I highly recommend him....
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Good Job to Calvin and team! We have engaged Calvin to upgrade our website with an ultra tight time frame. Not only it was done on time, the work was superb. Would definitely recommend them. Regards Casey
Calvin was detailed, meticulous and extremely accommodating! He instantly knew what I was looking for in my website and got right onto the designing perfectly. I’m extremely pleased with how the website turned out! Thank you Calvin & the team for your efforts!
Great job done on our website by Calvin. Always prompt, efficient and professional. Thank you Calvin & team. 👍
Calvin did an awesome job putting together my ecommerce site! He is a very patient, thorough and efficient. He communicates very well! I highly recommend his services!
The quality of their work has certainly exceeded my expectations. Am really glad to have engaged Calvin and his team!
Affordable, easy to use. Recommend to support. Calvin offers good advise and did a complete new website to my requests just as I wanted
Calvin is really easy to work with(given within a short timeline), responsive to our questions and comments. Very assuring and accommodating. No regrets engaging him for our project. Thank Calvin & team!
I will definitely recommend Calvin to anyone looking to engage a professional, quality web designer/web developer. Calvin is efficient, responsive and has a ‘can-do’ attitude that I find to be very admirable. He goes the extra mile for his clients and meets any difficult request head on with a positive attitude. Thank you, Calvin. Continue the good work!
Calvin was able to assist us in resolving a complex issue in a capable and efficient manner. He was always responsive and quick to act, even outside office hours, and also helped in liaising with our server host to get our system online. Good service and good pricing, highly recommended.
Calvin, is very patient and listens to then needs of the customer. Very timely and professional delivery. Thanks Calvin!!
Very prompt n professional service. Calvin is helpful n does his best to solve the problem. His service is highly recommended
Resources
What we use for web & mobile app development.
Top 3 benefits of using Woocommerce for ecommerce web development in 2023
In 2023, ecommerce continues to thrive and is increasingly becoming a crucial aspect of business growth. To succeed in ecommerce, businesses need to have a website that is not only…
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Top 5 reasons to build mobile apps using Ionic Framework
Mobile app development has become a crucial aspect of many businesses, from startups to large corporations in Singapore. With the increasing demand for mobile apps, developers in Singapore need to…
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Case Studies
The team in action.
See how we have helped countless businesses, big and small, set up their new domain on digital space; deliver award-winning, SEO-friendly, mission-critical websites and enterprise mobile apps.
