Ho Chi Minh City, Vietnam

Justin Hà. Building Luminal.

One of the first GEO specialists in Vietnam, now scaling that work into an agency helping brands get found, cited, and trusted by AI.

Start a Project Meet Luminal

30⁺

SEO Projects (PIC)

10⁺

GEO Clients (PIC)

60⁺

Others Consulted

Countries Covered

Justin Hà · Ho Chi Minh City

About Justin Hà

Who is Justin Hà

Senior Global SEO / GEO Specialist · Founder of Luminal · Ho Chi Minh City · Vietnam

Justin Hà was building GEO strategy in Vietnam before most agencies had a name for it. Five years in SEO, two of them running live GEO campaigns for international clients, all pointed at the same outcome: getting brands cited and recommended inside AI-generated answers, not just ranked in a list of blue links.

In 2026, that practice became Luminal - the agency behind this page. What it does and where is covered in full below.

The work today runs across nine generative platforms and nine international markets, on sites built in eight languages from Vietnamese to Japanese. Hospitality GEO, AI branding, programmatic SEO, and luxury brand visibility are where Justin spends most of his time - each one backed by real campaign data rather than theory.

Experience

2+ years building GEO before it became mainstream - first practitioner in Vietnam with publicly documented results

Active Projects

10+ GEO campaigns running across 9 AI platforms and 9 international markets simultaneously

Documented Results

Published case studies with screenshot evidence - GEO | IHG-Branded Airport Hotel HCMC (80% AI visibility), Local SEO | Premium Hair Salon Melbourne (784% bookings), SEO & GEO | Premium Flooring Brand US/UK/AU

Specialisation

GEO for hospitality, e-commerce, professional services - English and Southeast Asian markets

Market Position

#1 GEO Consultant in Vietnam - 9 AI platforms, 8 languages, 9 international markets covered

Meet Luminal

Luminal is a GEO (Generative Engine Optimization) agency in Vietnam helping brands get discovered, cited, and trusted inside AI-driven search - ChatGPT, Google AI Overviews, AI Mode, Perplexity, Gemini, Copilot, and other generative search surfaces.

Founded by Justin Hà - an SEO/GEO consultant who served as PIC on 30+ SEO client projects and 10+ GEO clients, plus consulted on 60+ others at a former Australian agency - Luminal builds on visibility strategies led across the US, UK, Australia, Canada, Indonesia, Vietnam, Korea, Japan, and China.

The agency works across hospitality (hotels, resorts, restaurants, tour agencies, property management), cosmetics distribution, production, local business, YMYL industries (health, finance, law), e-commerce, B2C, and B2B - building the entity structure, content clarity, and technical foundation generative engines need to surface and cite a brand correctly.

"Illuminating brands to get found, cited, and trusted by AI."

Optimizing Visibility Across

ChatGPT

AI Overviews

AI Mode

Perplexity

Gemini

Copilot

Industries We Work With

Hospitality

Hotels, resorts, restaurants, tour agencies, property management

Cosmetics Distribution

Brand and distributor visibility across AI-driven product research

Production

Manufacturing and production brands building AI-citable entities

Local Business

Local search and AI recommendation coverage for regional brands

YMYL

Health, finance, and law - trust and authority signals AI models require

E-commerce

Product-level entity structure for multi-SKU and multi-location catalogs

B2C

Consumer-facing brands competing for AI-assisted purchase decisions

B2B

Technical content and entity clarity for longer B2B research cycles

Visibility Strategies Led Across

United States

United Kingdom

Australia

Canada

Indonesia

Vietnam

Korea

Japan

China

The Journey So Far

01
Luminal
Current
Founder & GEO Consultant · GEO Agency · Vietnam
What began as one specialist optimizing for AI search became an agency built to do it at scale. Justin founded Luminal in 2026 to structure entities, clarify content, and fix the technical groundwork brands need to be found, cited, and trusted by ChatGPT, Gemini, Perplexity, and Google's AI surfaces - working across hospitality, cosmetics, YMYL, and e-commerce clients from Ho Chi Minh City outward.
2026 - Present
02
SEO GEO Consultant
Independent Consultant
Before Luminal had a name, this is where the model got tested: end-to-end AI visibility strategy, prompt testing, schema implementation, and entity optimization for international clients, proven out project by project across nine generative platforms.
2025 - 2026
03
Artemis Digital
Senior SEO/GEO Specialist · Global Agency · Vietnam & Australia
Two years split between Vietnam and Australia, running SEO and GEO strategy for e-commerce, professional services, and retail brands across the US, UK, and Australian markets - the stretch that shaped what technical SEO needs to look like once AI search enters the picture.
2024 - 2026
04
Heads on Pillows
Senior SEO/GEO Specialist · Global Agency · Vietnam & Australia
Hospitality became the specialty here - hotels, resorts, serviced apartments, and property management. The brief was consistent: cut OTA dependency, grow direct bookings, and get properties recommended inside ChatGPT, Perplexity, and Google AI Overview for clients across Southeast Asia, Australia, and beyond.
2024 - 2026
05
Detailers Movement
SEO Specialist
First full ownership of an SEO strategy end to end - building topical authority and content architecture for an automotive e-commerce brand in a crowded English-language market.
2023 - 2024
06
Intertour Travel
SEO Specialist
Where it started: SEO for a Vietnamese travel agency targeting local and international tourists, and the first real proof that structured content and consistent execution move organic traffic.
2022 - 2023

Illuminating brands to get found, cited, and trusted by AI.

Justin Hà, Founder of Luminal