Nguyen Duc Hieu
Ceo-Co-Founder
About Us
Always Better
TOS (TopOnSeek) is a Search Marketing company in Vietnam, founded in 2016. In 2026, amid the powerful shift toward AI, TOS pioneers a comprehensive solution spanning GEO, AEO, AIO & SEO — helping businesses both rank higher on Google and get cited by AI search engines such as ChatGPT, Gemini, Claude and Perplexity.
TOS was founded by Mr. Nguyen Duc Hieu — an SEO expert with an IT background and over 15 years of experience — and Mr. Bui Vu Long, with many years in strategy consulting. From the very first days, TOS has shaped a service that stands apart from the market: a complete strategy that meets clients needs and serves the ultimate goals of their business.
OUR VISION
Pioneering the Search Marketing landscape in Vietnam, and forging a global path to success for high-tech digital professionals.
OUR MISSION
Pioneering comprehensive GEO, AEO, AIO and SEO solutions for clients. Leading the application of AI across the search marketing industry. Bringing high-tech Vietnamese services to compete in the international market.
Service We Offer
TOS delivers a comprehensive Search AI solution (GEO, AEO, AIO, SEO) — not only growing traffic from Google but also getting your brand cited by AI, while optimizing conversion rates.
GEO/AEO Services
01
Helping your brand appear and get cited by AI search engines (ChatGPT, Gemini, Perplexity, Google AI Overviews) alongside top rankings on Google Search.
Conversion Optimization
02
The service is based on a deep understanding of the target audience on digital platforms, including digital touchpoints and customer digital needs, to increase conversion rates.
Data Intelligence
03
The data collection and user behavior analysis service aims to provide recommendations for implementing contact points on the website to increase conversion rates and expand revenue.
01
GEO/AEO Services
Helping your brand appear and get cited by AI search engines (ChatGPT, Gemini, Perplexity, Google AI Overviews) alongside top rankings on Google Search.
02
Conversion Optimization
The service is based on a deep understanding of the target audience on digital platforms, including digital touchpoints and customer digital needs, to increase conversion rates.
03
Data Intelligence
The data collection and user behavior analysis service aims to provide recommendations for implementing contact points on the website to increase conversion rates and expand revenue.
Core Value
TOS delivers comprehensive GEO, AEO, AIO & SEO solutions — combining deep expertise with the latest Search AI technology to help businesses grow sustainably on both Google and AI answers.
PERFORMANCE
01
AI-FIRST STRATEGY
02
GEO/AEO/SEO TECHNOLOGY
03
PERFORMANCE
Pioneering AI-First Growth Hacking solutions (GEO, AEO, SEO) for leading enterprises — driving exponential business growth and unlocking unprecedented success.
AI-FIRST STRATEGY
Based on in-depth analysis, TOS builds an AI-First strategy combining GEO, AEO and SEO to help you achieve your business goals in the short, medium, and long term.
GEO/AEO/SEO TECHNOLOGY
TOS is always a pioneer in applying new technologies — Data Intelligence, AI search optimization — to boost visibility on both Google and AI engines like ChatGPT, Gemini and Perplexity.
Our People
We values efficiency, speed, and integrity in every aspect of our work
With over 13 years of experience in project management and website optimization, he is committed to delivering maximum customer satisfaction: “Tell Google, the best website in Vietnam”.
Bui Vu Long
Co-Founder
Having amassed more than 7 years of experience, achieving success with 3 startup ventures, and engaging in cross-industry projects in strategic and implementation roles, he consistently aims for the best outcomes for clients in the future.
Our Achievements
Evidence of dedication & relentless effort
Awards 2023
Awards 2024
Our Association
Recognized by associations
Our Clients
TOS collaborates & develops alongside reputable industry-leading partners
Banking & Finance
Cosmetic & Beauty
Ecommerce
B2B
Education
Others
