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    Software Outsourcing
    & Digital Consulting Service

    Reliable Vietnam partner for the development and maintenance of your IT Solutions

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    Seamless Global Delivery

    We're based in Vietnam and proudly work with global customers from multiple timezones

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    Happy coder,
    Happy coding for a better life!

    3S highly values the life of coders and contributes social values to Vietnam & the world


Research and Development

We always catch up with new technology trends to change and improve human life, which cover many fields as such Data Analytic, AI, Machine Learning, Deep Learning, IBM Watson/ Cognitive Service,...

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Mobile Development

Let's your organization tap into these benefits even when your time and resources are limited by using 3S services. Let's build better mobile applications with 3S. Our strategic mobile team will help.

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Software Outsourcing Service

Our experienced & highly competent offshore outsourcing teams have been providing comprehensive, premium & most satisfactory offshore outsourcing services and development to Customers worldwide.

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Web Design and Coding

3S utilizes pre-built content management system (CMS) core to save both time and money. In some certain contexts, 3S also develop systems from scratch to maximize the business support of the applications.

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NFC Marketing Service

Application of the latest technology of NFC (Near Field Communication) technology and RFID (Radio Frequency Identification) in various business usage. Contact us for realworld case studies.

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Why 3S?

Our experience, expertise, best-equipped facility, professional management, commitment and happy smiles have been bringing our customers the utmost satisfaction.

Our Products

3S would like to become a Software Service Company that gradually bring innovative online services to the public.


Crisis Management System

The application of strategies designed to help an organization deal with sudden and significant negative events.

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Mobile Business Shopapp.vn

Pick your own Shop Application on Mobile

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RFID Management System

An RFID Access Management Solution that can be defined as an "Invisible Soft Security Barrier" for our smart city.

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CMS Solution for Hotel & Resort websites

We provide flexible and cost effective CMS solution for Nam An promotion websites. Naman Retreat seamlessly blends timeless Vietnamese heritage and culture with luxurious modern charm. Impressive traditional bamboo architecture and exquisite interiors, combined with our authentic Vietnamese hospitality assures you a wonderful retreat experience.

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NFC-based Food Court Operation Management

Culinary art is creative and a finest dish must give the guests not only great tastes, but it does bring them delights in senses of smell and sight.

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What Our Clients Say?

Each of you has contributed a tremendous amount of effort in getting us to this stage and I for one would like to thank all three of you for the commitment, energy and dedication it has taken to get us from a fanciful concept to a real live site.

Nadim van der Ros



Project quality is good with smooth implementation. No problem so far.

Sano Seiichi

As you are fully aware the team at 3SI has been making good progress on this tight and challenging project. Everything that I’ve asked of them they have delivered and for that I’m very pleased.We still have a little more to go before production launch but I want to let it be known that Tuan, Phong, Manh and other team members who had contributed a huge amount of effort and for that I’m truly grateful. As a recognition of the tremendous and super hero efforts I would like to make a small gesture of my appreciation by treating the entire Project team at 3S to a very nice dinner to the sum of $600USD...

Anton Pham





3S Company went beyond expectations. I plan on working with them immediately to complete my plans.

Louis O'Reily

Excellent project work. The team went above and beyond the call of the project to ensure it was completed perfectly and on time. Highly recommended.

Marcel Kaminstein



Ours project is a complicated one that has nine elements that need to work together. The original programmer quit the project because of its complexity. The staff at 3S Company is diversified so there is someone who is proficient at whatever skill is needed. Due to the complexity of our project, I have had the opportunity to work with six different programmers. All of them have been hard working and cooperative. Despite the twelve hour time difference, I have been able to talk over Skype in both the morning and evening. That means that sometimes the programmer is up until 11PM. As a consequence of their diverse talents and willingness to communicate whenever needed, my project is moving along at a rate that meets my expectations. Oh, it helps a lot that they all speak English.

Lou O'Reilly



I must say that I am very satisfied about the professional work delivered by the Windows team and it would be my pleasure to offer you more projects / new apps. I would like to thank all members of the team for their excellent work ! As soon as the app is released, I look forward to further development of this application. There are many new functions that will be added in the "future.






Say Hello!

We are 3S Intersoft JSC.
We’d love to hear from you.

Hanoi, Vietnam


A: 3rd Floor, Kim Anh Building, No.1/78 Duy Tan Street, Dich Vong Hau Ward, Cau Giay Dist, Hanoi

T: +(8424) 3795 6671

F: +(8424) 3795 6670

M: +(84) 98 999 7192

E: info@3si.vn

Danang, Vietnam


A: 2nd Floor, Vinaconex Building, No 320 2 Thang 9 Street, Hai Chau Dist, Danang

M: +(8424) 3795 6671

E: info@3si.vn

Thanhhoa, Vietnam


A: 1st Floor, Cao Su Thanh Hoa Building, Ly Nam De Street, Dong Huong Ward, Thanh Hoa City

M: (+84) 944 488 868

E: info@3si.vn

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