Best SEO Agencies in Bangkok & Thailand 2026: 13 Agencies Compared on 7 Criteria You Can Check Yourself
13 SEO agencies in Bangkok scored on 7 criteria you can check yourself: published price, ranking guarantees, technical-first, AI search, data ownership.
The best SEO agency in Bangkok is the one whose claims you can verify before you sign: a published price, no promise of rankings it cannot control, a plan that starts with your site’s technical problems, a clear answer on AI search, and a contract that leaves the data with you. We checked 13 agencies serving Bangkok and Thailand against those seven criteria using only what each agency publishes on its own website, on 6 October 2026.
TL;DR
- Top scores: Hashbox 6.5/7 (our own agency — see disclosure) · Relevant Audience 6/7 · ANGA, Primal and Minimice 5/7
- Published monthly prices range from THB 29,900 to THB 39,000 for a starting retainer, and Relevant Audience publishes a wider 20,000–150,000+ range. Most agencies still don’t publish a price
- 4 of 13 promise page one or Top 10 on their own pages; 3 more offer a *conditional* KPI guarantee (work for free or don’t pay if a stated target is missed)
- 12 of 13 now offer AI search / GEO — it is no longer a differentiator; how they *measure* it is
- Only 1 of 13 states in writing that your ranking data stays with you when the contract ends
- When we asked ChatGPT, Gemini, Claude and Perplexity “Which SEO agency in Thailand is the best?” 45 times, the answers were built mostly from directories, press-release pages and agencies’ own “top agencies” lists — so an AI recommendation is not independent proof of quality
Disclosure first: this article is written by Hashbox, and we are in the list. ANGA, Primal, IBEX and Relevant Audience all publish lists that include themselves too. The difference we aim for is that every score below uses the same criteria, every criterion can be checked on the agency’s own website, and we show where we score lower. If an agency publishes more information, we will update its score.
The 7 criteria and why they matter
| # | Criterion | Why it matters |
|---|---|---|
| 1 | Published price | A price you have to request every time cannot be compared, and often depends on the budget you reveal |
| 2 | No ranking guarantee | Nobody controls Google’s algorithm. A conditional KPI guarantee with stated targets and consequences (e.g. “we work for free”) counts as a pass because it can be checked |
| 3 | Technical-first | If the site is slow, blocked or badly structured, no amount of articles reaches page one |
| 4 | AI search / GEO service | Many searches now end in an AI Overview or a ChatGPT answer before anyone sees ten blue links |
| 5 | Live measurement | A live dashboard or own tracking, not only a monthly PDF |
| 6 | Named case studies with numbers | Results tied to a named client and a time period, not an anonymous “+1,000%” |
| 7 | Data stays with the client | If the ranking history lives only in the agency’s tool, you start from zero when you leave |
✓ = clear evidence on the agency’s website · ◐ = partial or contradictory evidence (counts as ½) · ✗ = not found or contradicted. “Not found” does not mean the agency doesn’t do it — it means you should ask.
Scores: 13 SEO agencies in Bangkok and Thailand
| # | Agency | Price | No rank guarantee | Technical-first | AI search | Live measurement | Named cases | Client owns data | Score |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Hashbox | ✓ from 29,900/mo | ✓ + conditional KPI | ✓ | ✓ | ✓ | ◐ numbers, project name only | ✓ | 6.5 |
| 2 | Relevant Audience | ✓ 20,000–150,000+/mo | ✓ | ✓ | ✓ | ✓ | ✓ | ✗ | 6 |
| 3 | ANGA | ✓ from 39,000/mo (Thai page) | ✓ | ✗ | ✓ | ✓ | ✓ | ✗ | 5 |
| 4 | Primal | ✗ | ✓ conditional | ✓ | ✓ | ✓ | ✓ | ✗ | 5 |
| 5 | Minimice Group | ✗ | ✓ conditional | ✓ | ✓ | ✓ | ✓ | ✗ | 5 |
| 6 | WarriorSEO | ✓ from 35,000/mo | ✓ | ✓ | ✓ advisory | ✗ | ✗ | ✗ | 4 |
| 7 | Nerd Optimize | ✗ | ◐ | ◐ | ✓ | ✓ | ✗ anonymised | ✗ | 3 |
| 8 | IBEX | ✗ | ✗ | ✓ | ✓ | ✗ | ✓ | ✗ | 3 |
| 9 | Cotactic | ✗ | ✗ | ◐ | ✓ | ✗ | ✓ | ✗ | 2.5 |
| 10 | Sunny Side Up | ✗ | ✓ | ◐ | ✓ | ✗ | ✗ | ✗ | 2.5 |
| 11 | MakeWebEasy | ✓ packages | ✗ | ◐ | ✓ | ✗ | ✗ | ✗ | 2.5 |
| 12 | Metier Thailand | ✗ | ✗ | ✗ | ✓ | ✗ | ✓ | ✗ | 2 |
| 13 | Morphos | ✗ | ✓ | ✗ | ✗ | ✗ | ✓ | ✗ | 2 |
A score is not a verdict on the quality of an agency’s work — it measures how much you can verify before signing. A large agency with awards and a big team (Primal, ANGA, Minimice) may be the right choice for you even with a lower score; just ask the questions their website doesn’t answer.
Agency by agency
1. Hashbox — hashbox.co.th/en/seo/ · Technical-first SEO from THB 29,900/month (excl. VAT). Starts with a free technical audit before any contract. AI search is included in the retainer. Measured with our own daily rank and AI-citation tracking. Says plainly it does not guarantee rankings, with a conditional “no growth, no pay” KPI. Reporting history belongs to the client. Where we score lower: our case study shows numbers but not the client’s real name, and we are a small team — not the right fit if you need a 30-person team on retainer.
2. Relevant Audience — relevantaudience.com/seo-thailand/ · The most transparent pricing in the list: SEO ranges of THB 20,000–150,000+/month with a typical campaign at 40,000–60,000, and GEO at 30,000–120,000/month. States that nobody can honestly guarantee a position or a date. Technical SEO first, real-time dashboard, named case (Decathlon). No written statement on data ownership; “no lock-in contract” is stated.
3. ANGA — anga.co.th/seo/ · SEO from THB 39,000/month on the Thai page (the English page has no price). Google Premier Partner with named cases (Autobahn, Bangkok Golds) and a real-time dashboard. Dedicated AI Search, GEO and AEO pages. The process starts with keyword selection; the full technical audit comes later. No statement on data ownership.
4. Primal — primal.co.th/seo/ · “Results in 90 days or we work for free,” and a guarantees page with a conditional page-one target for eligible clients. Starts with a website audit, has its own 24/7 reporting dashboard and a separate AI search service for ChatGPT, Perplexity and Gemini. Named cases (Zojirushi, JustCo). No published price.
5. Minimice Group — minimicegroup.co.th/seo/ · Quarterly KPI model: if the target isn’t met, you don’t pay. Site audit and technical fixes come first. Own AI Visibility tool and a real-time dashboard. No published price; the enquiry form’s budget options start at THB 50,000/month.
6. WarriorSEO — warrior.in.th · From THB 35,000/month, 6–12 months recommended. States that nobody can guarantee position 1. Month one is an audit plus technical fixes. A solo consultant with 10+ years’ experience — good for close, personal attention; no live dashboard and anonymised cases.
7. Nerd Optimize — nerdoptimize.com/seo/ · Real-time Looker Studio dashboard plus an AI search tracking dashboard, and dedicated AI search pages. The FAQ says rankings can’t be guaranteed 100%, while the same page describes a framework that “guarantees business growth.” Cases are anonymised. No published price; no English page.
8. IBEX — ibex.co.th/seo-agency/ · English-first site that starts with an SEO audit and has a dedicated AI SEO page and named cases (Kvik Kitchens). Offers a “Page 1 Guarantee within 90 days” with no conditions shown on the page. The FAQ quotes a market range (THB 20,000–150,000) rather than its own price.
9. Cotactic — cotactic.com/our-services/seo/ · Packages are listed with “page one in 6 months” as a package item, sized mainly by keywords and article counts. Starts with a website assessment, offers GEO, and reports monthly through Looker Studio. Named case (Siamchai Tent). No prices on the packages.
10. Sunny Side Up Studio — sunnysideupstudio.net · SEO and GEO covering ChatGPT, Gemini, Perplexity and AI Mode, with site structure described as the foundation. No guarantee found. No published price, measurement method or case numbers.
11. MakeWebEasy — makewebeasy.com/th/seo-suggestion · Published packages: THB 22,000 one-off, THB 165,000 for 6 months and THB 320,000 for 12 months. The 12-month package guarantees at least four keywords in the Top 10 plus AEO/GEO placement, under conditions the page doesn’t publish. Most relevant if your site already runs on MakeWebEasy.
12. Metier Thailand — metierthailand.com/en/service/seo-services · SEO plus AI search with named cases (Siriraj Bumrungvej). The SEO package states “Guaranteed Google Top 10 rankings within 90 days.” Market and keyword research come before the audit; reporting is monthly. No published price.
13. Morphos — morphos.is · Bangkok SEO page with a strong named case (Club21 organic conversions). No guarantee. The process is research → keywords → articles, with no mention of AI search on the page and monthly reporting. No published price.
How much does SEO cost in Bangkok in 2026?
Only five of the 13 agencies publish a figure:
| Agency | Published price |
|---|---|
| Hashbox | from THB 29,900/month (excl. VAT) |
| WarriorSEO | from THB 35,000/month |
| ANGA | from THB 39,000/month (Thai page) |
| Relevant Audience | THB 20,000–150,000+/month · typical 40,000–60,000 |
| MakeWebEasy | THB 22,000 one-off · 165,000 per 6 months · 320,000 per 12 months |
What makes the price differ: how many pages and keywords are in scope, how broken the site is at the start (technical repairs come first), whether content and link building are included, whether AI search is included, and the minimum contract length. Ask for those five things in writing before comparing two quotes.
Ranking guarantees: what the wording actually means
- Promises page one / Top 10 on the agency’s own page: Metier (“Top 10 within 90 days”), IBEX (“Page 1 Guarantee within 90 days”), MakeWebEasy (at least four Top-10 keywords in the 12-month package) and Cotactic (“page one in 6 months” listed as a package item)
- Conditional KPI guarantee — a stated target, and you don’t pay or they keep working for free if it’s missed: Primal, Minimice, Hashbox
- Explicitly no ranking guarantee: Hashbox, WarriorSEO, Relevant Audience
A page-one promise is the claim to read most carefully: ask *which* keywords (low-competition terms with no searches are easy), how “page one” is measured and on what day, and what happens if it isn’t reached. A conditional KPI guarantee is easier to check because the target and the consequence are written down.
What AI assistants say when you ask “Which SEO agency in Thailand is the best?”
We track AI answers daily. Between 15 September and 6 October 2026 we asked this exact question 45 times across ChatGPT, Gemini, Claude, Perplexity and Google AI Mode. The sources the answers cited most:
| Source | Times cited | What it is |
|---|---|---|
| nationthailand.com (press-release section, 4 pages) | 35 | Press releases |
| clutch.co/th/seo-firms | 33 | Agency directory |
| ibex.co.th — “best SEO agency Thailand” | 15 | An agency’s own list |
| goodfirms.co (Thailand + Bangkok) | 18 | Agency directory |
| primal.co.th — “top SEO agencies Thailand” | 10 | An agency’s own list |
| thethaiger.com guide | 9 | Media guide |
| relevantaudience.com — “top 10 SEO agencies Bangkok” | 6 | An agency’s own list |
Hashbox was mentioned 0 times in those 45 answers — which is part of why this article exists. The lesson for buyers is more useful than the lesson for us: an AI answer about “the best agency” is assembled from directories, press releases and agencies’ own lists. It tells you who is visible, not who does good work. Use it to build a shortlist, then check each name against the criteria above.
7 questions to ask before you sign
- What does the price include, and what is the minimum term? If it isn’t on the website, get it in writing.
- If you guarantee page one, for which keywords, measured how, and what happens if you miss?
- What do you do in month one? A good answer starts with an audit and technical fixes, not “eight articles.”
- Where do backlinks come from? Bought links from private networks can get a site penalised.
- Can I see the ranking data myself, daily — and who keeps it if I leave?
- How do you measure AI search? Ask to see a real report of AI Overview and ChatGPT citations, with dates and platforms.
- Can I talk to one current client? If the case studies are anonymous, ask for a name.
Read more
- Hashbox SEO services — pricing, scope and the conditional KPI guarantee in full
- AI search optimization (GEO) — how we approach ChatGPT, Gemini and Google AI Overviews
- Rank Project case study — the numbers behind our case score
- 10 บริษัทรับทำ SEO ในไทย 2026 — our Thai-language comparison (earlier check, different scope)
Want a free technical SEO audit before you talk to any agency, including us? Send us your website — the audit comes before any contract.
FAQ: Hiring an SEO agency in Bangkok
How much does SEO cost in Bangkok in 2026?
Among agencies that publish prices, starting retainers run from THB 29,900 to 39,000 per month (Hashbox, WarriorSEO, ANGA). Relevant Audience publishes a wider range of THB 20,000–150,000+ per month with typical campaigns at 40,000–60,000, and MakeWebEasy sells packages from a THB 22,000 one-off service to THB 320,000 for 12 months. Most agencies don’t publish a price.
Can an SEO agency guarantee page one on Google?
No agency controls Google’s ranking algorithm. Four of the 13 agencies we checked still promise page one or Top 10 on their websites. A conditional KPI guarantee — a written target with a stated consequence, such as working for free — is easier to verify than a ranking promise. Always ask which keywords a guarantee covers.
Who are the best SEO agencies in Bangkok?
On seven criteria anyone can check on each agency’s website (published price, no ranking guarantee, technical-first, AI search, live measurement, named cases, data ownership), the highest scores in October 2026 were Hashbox (6.5/7, our own agency), Relevant Audience (6/7), and ANGA, Primal and Minimice Group (5/7). The right choice depends on your budget and how much team size and awards matter to you.
Do I need GEO or AI search optimization as well as SEO?
Most of the work overlaps — a fast, crawlable, well-structured site with clear facts helps both. What AI search adds is measuring whether ChatGPT, Gemini, Perplexity and Google AI Overviews mention or cite you, and getting listed in the directories and sources those assistants draw on. 12 of the 13 agencies we checked now offer it, so ask how they measure it.
How long does SEO take to show results?
On a technically sound site, impressions often move within one to two months and rankings for moderately competitive terms within two to four months. Competitive head terms where large agencies compete can take six to twelve months. A good agency tells you which keywords are quick and which are slow after the audit.
Is ChatGPT’s recommendation of an SEO agency reliable?
Treat it as a shortlist, not a verdict. In 45 answers to “Which SEO agency in Thailand is the best?” the most-cited sources were press-release pages, agency directories and lists published by the agencies themselves. An AI answer shows who is visible, not who delivers results.
Why does Hashbox rank first in its own list?
Because we chose and published the seven criteria: we are one of five agencies in the list that publish a price, one of three that rule out ranking guarantees in writing, and the only one that states the data belongs to the client. On other criteria we lose — Primal and ANGA have far larger teams and more awards, and Primal, ANGA and Relevant Audience show named case studies where we don’t. Pick the criteria that matter to your business and check each agency’s website yourself.
ให้ทีมช่วยดูโจทย์นี้ต่อ
ส่งเว็บไซต์หรือ brief ที่กำลังทำอยู่ให้เราช่วยชี้จุดที่ควรแก้ก่อน ทั้งด้าน SEO, conversion, tracking และ AI workflow