If you want your brand named when someone in Thailand asks ChatGPT, Gemini or Google for a recommendation, you need an agency that does GEO, not only classic SEO. This list compares seven agencies that sell GEO or AI SEO to Thai businesses. For each one it covers where they are based, what they offer, what they charge where they publish it, and who they suit.
Disclosure: Stridec wrote this comparison and placed itself first. Read our entry with that in mind, and read the others for the cases where they are the better hire. We say where those are. Every figure attributed to another agency is that agency’s own published claim, taken from its website on 4 November 2026, with a link so you can check it.
The short version
- Stridec is the choice if you want your brand named inside the AI answer, not just listed as a source. Its Brand Authority Directive makes your business the one the engines understand most clearly and can quote most precisely, in Thai and English.
- Primal is the large regional agency, with Bangkok, Kuala Lumpur and Singapore offices.
- Marketing Ignite has worked in search since 1998 and sells GEO in Thai, English and other languages.
- Relevant Audience publishes Thai GEO prices, about 30,000 to 120,000 baht a month, with no lock-in.
- ANGA and Vault Mark are award-winning Bangkok search agencies with dedicated AI search services.
- Search Studio is a senior-led boutique in Chiang Mai.
How we compared them
We started from what the AI engines themselves recommend. On 4 November 2026 we asked Google AI Mode, from a Thai location, for the best GEO agency in Thailand, once in English and once in Thai. The two answers named completely different agencies, which is a finding in itself: the language of the question changes who gets recommended. We added agencies with a dedicated Thai GEO or AI search service page.
Then we read each agency’s own website and recorded only what it states: location, services, prices and numbers. Where an agency does not publish something, we say so rather than guess. Agencies are left out when their GEO page names no AI engines or gives too little to compare, or when they appear only on lists they wrote about themselves.
Published GEO prices at a glance
| Agency | Based in | Published GEO price |
|---|---|---|
| Stridec | Singapore, serving Thailand | S$2,500, S$4,500 or S$8,000 a month |
| Relevant Audience | Bangkok (Bang Na) | About 30,000 to 120,000 baht a month, audits from about 25,000 baht |
| Primal | Bangkok (Lumpini) | Not published, scoped after a 30-minute call |
| Marketing Ignite | Bangkok (Rama 9) | Not published, free GEO audit |
| ANGA | Bangkok (Silom) | Not published |
| Vault Mark | Bangkok (Sukhumvit) | Not published |
| Search Studio | Chiang Mai | Not published, priced per website |
1. Stridec: best for getting your brand named in the answer, not just cited
Best for: Thai and regional brands that want AI engines to recommend them by name, in Thai and English, with SEO and GEO handled as one job.
Stridec is a Singapore-based GEO/SEO agency that helps brands get recommended by AI searches such as Google, ChatGPT and Claude. We serve clients across Southeast Asia, Thailand included, as well as North America, and we have worked in search since 2001. We don’t have a Thai office. We run the work from Singapore and check AI answers from a Thai location, in both languages, because the engines answer differently depending on where and how the question is asked.
How we work: AI doesn’t pick the biggest brand. It picks the one it understands most clearly and can quote most precisely. Our Brand Authority Directive makes that your brand. We write down exactly what your business is, who it serves and how it is different, with no marketing language, and hold it the same across your site and profiles. Then we get independent sources to describe you the same way, because the engines trust what several pages agree on. We judge the work by one number: how often your brand is named inside the answer, in Thai and English.
Prices: S$2,500 a month for GEO Foundations (one channel, Google or ChatGPT), S$4,500 for GEO Authority (Google and ChatGPT) and S$8,000 for Full-Spectrum GEO + SEO (Google, ChatGPT and Claude). Details are on the pricing page.
Proof: the method was built on founder Alva Chew’s own businesses first. AeroChat, Alva’s own software product, reached its first Google AI Overview in under three weeks in early 2026. Qwang Coffee, Alva’s own Shopify store, was cited in a Google AI Overview within 48 hours of its domain being registered, in Singapore. Both are on the case studies page.
Choose someone else if: you want a large local team in the room in Bangkok, or one agency for ads, social and brand work as well as search. Several of the Thai agencies below do that.
More on our approach: GEO agency Thailand.
2. Primal: best for a large regional team with separate GEO, AEO and AI SEO services
Best for: larger brands that want one agency across several Asian markets.
Primal’s Thai office is in the Vanissa Building on Soi Chidlom, Bangkok, alongside offices in Kuala Lumpur and Singapore. It says it has grown to about 150 people since 2015 and lists “300+ Brand Partners”. It runs separate pages for GEO, AEO and AI SEO, covering ChatGPT, Gemini, Perplexity and Google AI Overviews, with “each platform reported on its own”.
Price: not published. Its FAQ says the fee depends on pages, markets and content and link work, and “Scope is set after a 30-minute call.” Recognition: Google Premier Partner 2026 and LINE Agency Partner badges, and a 4.9 Google rating shown on its site.
Choose Primal if: you want scale and regional reach, in sectors it lists such as healthcare, finance, real estate, education, F&B, retail and travel.
3. Marketing Ignite: best for multilingual GEO from a long-established Bangkok agency
Best for: international schools, hospitals, clinics, law firms and manufacturers selling to Thai and international buyers.
Marketing Ignite is based in The Ninth Tower on Rama 9 Road, Bangkok, with a US office as well. Its GEO agency page says it has worked in search and digital marketing “since 1998”, and that it helps businesses get named in AI answers “in Thai, English and other languages”. It covers ChatGPT, Google AI Overviews and AI Mode, Gemini, Perplexity, Copilot and Claude, combining technical SEO, content, entity work and digital PR.
Price: not published. It offers a free GEO audit. Recognition: its page shows its Google profile with a 5.0 rating from 25 reviews.
Choose Marketing Ignite if: your buyers ask in more than one language and you want a Bangkok agency with a long search history.
4. Relevant Audience: best for published Thai GEO prices with no lock-in
Best for: medical and wellness tourism, hospitality, real estate and B2B firms that want to know the cost up front.
Relevant Audience is based in 66 Tower on Sukhumvit Road, Bang Na, Bangkok, and says it has served “over 500 clients”. Its GEO page covers ChatGPT, Gemini, Perplexity, Claude and Google AI Overviews, and there is a Thai-language version.
Price: “Most GEO programs in Thailand range from about 30,000 to 120,000 THB per month”, with one-time AI visibility audits “from around 25,000 THB”. It states “No Lock-In Contract”.
Choose Relevant Audience if: you want a Thai agency with a published price range and a monthly scope you can stop.
5. ANGA: best for a Thai SEO specialist with a dedicated GEO service
Best for: real estate, medical, aesthetic clinic and B2B businesses.
ANGA Bangkok is based in Central Park Office on Rama IV Road, Silom. It has separate pages for GEO, AI search and AEO, naming AI Overviews, AI Mode, Gemini, ChatGPT, Claude and Perplexity. Its headline numbers, such as “400+” websites on page one of Google, are SEO results rather than AI answer results.
Price: not published. Recognition: Google Premier Partner, and SEO Agency of the Year wins it lists on its site.
Choose ANGA if: you want a Thai SEO specialist in one of its focus sectors to extend your search work into AI answers.
6. Vault Mark: best for search tied to leads and sales for enterprise brands
Best for: business owners and marketing directors at established brands who want search reported in leads and revenue.
Vault Mark is based in the S-Metro Building on Sukhumvit Road, Bangkok. Its AI search optimization page describes an “AI-Search OS” that combines SEO, AEO and GEO in Thai and English, entity work and measurement from search through to lead, sale and lifetime value. It cites “11,000+ AI citations” for one client programme, in financial services.
Price: not published. It starts with an AI search diagnostic call.
Choose Vault Mark if: you are a larger brand and want one search system that management can read in commercial terms.
7. Search Studio: best for a senior-led boutique outside Bangkok
Best for: e-commerce, hospitality, real estate and manufacturing businesses that want senior people doing the work.
Search Studio is based in Suthep, Chiang Mai. Its AI SEO page covers Google, ChatGPT, Perplexity and Google AI Overviews, and says “We’ve spent 14 years refining what works.”
Price: not published. “Every campaign is priced based on what your website actually needs.”
Choose Search Studio if: you prefer a small senior team over a large agency, wherever you are in Thailand.
How to choose
Ask every agency on your shortlist for the same five things with each result it claims: the engine, the question, the language, the market and the date. Then type the question yourself, in Thai and in English, into a logged-out browser in Thailand and see who comes back. An agency that reports one “AI visibility” score across every engine and language is hiding the fact that each one answers differently.
Then match the shape of the engagement to your situation. If your buyers ask in Thai, make sure the agency writes and measures in Thai. If you already have strong SEO, a GEO add-on may be enough. If cost certainty matters, start with the agencies that publish prices.
Frequently asked questions
How much does a GEO agency cost in Thailand?
Among the agencies here, Relevant Audience publishes GEO programmes at about 30,000 to 120,000 baht a month, with audits from about 25,000 baht. Stridec charges S$2,500, S$4,500 or S$8,000 a month. Primal, Marketing Ignite, ANGA, Vault Mark and Search Studio quote on request.
What is GEO in Thai search?
GEO, generative engine optimisation, is the work of getting your brand named inside the answers AI engines write, including answers to questions asked in Thai. It has nothing to do with geography. Most of the agencies here also sell classic SEO.
Should my GEO content be in Thai or English?
It depends on who your buyers are and how they ask. When we asked Google AI Mode the same question in both languages from Thailand, no agency appeared in both answers. If your buyers ask in Thai, you need Thai pages the engine can quote. Regional and export brands usually need both.
Can a Singapore agency do GEO for a Thai business?
Yes. The engines are the same in both countries. What matters is checking answers from a Thai location, in the languages your buyers use, and knowing which Thai sources the engines read for your questions.
Agency details were taken from each agency’s own website on 4 November 2026. Prices and claims change, so check the linked pages before you decide.