Software House in Thailand for Web and App Development
We build it, and we still run it. Websites, mobile apps and enterprise systems for banks, insurers, hospitals and growing Thai companies, built in Bangkok and in service today.
The companies we build for
45+ enterprise brands across banking and insurance, energy, property and hospitality, healthcare, education and government, retail and consumer.
Banking and insurance
Energy and industry
Property and hospitality
Healthcare
Education and government
Retail and consumer
Six years of enterprise software for Thai companies
- 45,000+man-days of engineering
- 100+projects delivered
- 45+enterprise brands
- 2020founded in Bangkok
ISO/IEC 27001 certified. AWS Select Tier Services Partner.
Certified and recognised
ISO/IEC 27001 for information security, AWS Select Tier Services Partner, Microsoft, Google Cloud, Cloudflare and Datadog partner, and Clutch Top Web Developers Thailand 2024.
What we build
One team in Bangkok designs, builds, integrates and runs it. You talk to the engineers who do the work.
Web development
Corporate sites, customer portals and web apps that sell, in English and Thai.
Mobile apps
iOS and Android apps with secure login, payments and the back office behind them.
Custom software
Back-office systems, workflows and portals built around how your team works.
System integration and APIs
New systems connected to core banking, HIS, ERP and AS/400 while they keep running.
UX/UI design
Research and design by the same team that builds it, ready for development.
AI agents
AI that answers from your own data and does real tasks on your website and in LINE.
Team extension
CODEMONDAY engineers join your team on a monthly basis, alongside your own developers.
Where we work most

Banking and insurance
Customer websites, mobile banking, e-KYC and payments, built on top of the core the bank already runs.
Hospitals and health
Patient services on top of the hospital HIS, such as the BDMS medical record request system.
LINE OA and AI agents
Member systems, LIFF apps and AI agents inside the LINE account your customers already use.
How a project runs
A first release usually takes a few weeks to a few months. Larger integration projects go live in planned phases.
Discovery
We learn the business, the users and the systems already in place, and agree the scope.
Design
UX/UI and architecture, tested with your team before a line of production code.
Build
Short cycles you can see working, with your data and your integrations.
Go-live
A planned launch with monitoring, a rollback plan and the team on hand.
MA and CR
We stay: maintenance keeps it healthy, change requests keep it growing.
Sompo, BDMS and Com7 systems on this page are still looked after by CODEMONDAY today.
One team in Bangkok
More than 70 people work at CODEMONDAY: engineers, designers and project leads. You work directly with the team that builds and runs your system.



What clients say
Work professionally. Delivered on time. Fast on support.
PanisaeCom Channel Development Manager, UnileverThey are positive and optimistic. Everything goes smoothly and easily.
NoppasitFounder, Brain DynamicsThere is nothing better than working with a good team.
PawarissornFounder, Foxbith DesignQuestions buyers ask
What is a software house?
A software house is a company that designs, builds and maintains software for other organisations. CODEMONDAY is a software house in Bangkok that builds web apps, mobile apps, AI agents and system integrations for enterprises.
How do I choose a software house in Thailand?
Ask to see systems that are live today, who built them and who runs them now. Check security certification such as ISO/IEC 27001, how the team integrates with your existing systems, and what support looks like after Go-live.
What does CODEMONDAY build?
Websites and web apps, iOS and Android apps, custom back-office systems, system integration and APIs, UX/UI design and AI agents. We also extend client teams with our engineers.
Which industries do you work with?
Mostly banking, insurance and healthcare, plus energy, property, retail, agriculture and food, education and government. Clients include ttb, KBank, SCB, Sompo, BDMS, PTTEP, Com7 and Unilever.
Is CODEMONDAY ISO/IEC 27001 certified?
Yes. CODEMONDAY is certified to ISO/IEC 27001, so client data and systems are handled under an audited information security management system.
Where is CODEMONDAY?
Our office is at Silom Plaza, Silom Road, Bang Rak, Bangkok. We work with clients across Thailand in English and Thai.
Talk to an engineer
Call, message us on LINE or leave your details, and our team will get back to you.

















