3 Best AEO Agencies in Portugal (2026)
We reviewed AEO agencies in Portugal and ranked them on answer engine optimisation, winning the direct answer, published review scores and evidence of real client work. Most cluster in and around Lisbon, across Alges and Oeiras, with a secondary hub in the Porto area and single firms in Coimbra and northern Ponte de Lima. Every agency below shows this service on its own site.
Reviewed by Davis Paipa, Founder, Shoptank. Agency data verified 2026-09-17.
| # | Agency | Best for | Location | Rating |
|---|---|---|---|---|
| 1 | 3HASH | Published-price GEO and AEO setup | Coimbra, Portugal | Not published |
| 2 | Infinidata | AEO and GEO for larger accounts | Lisbon, Portugal | Not published |
| 3 | PortugalSEO | SEO, GEO and AEO in one retainer | Ponte de Lima, Portugal | Not published |
3HASH
3HASH is a Portuguese digital agency founded in 2018 with offices in Coimbra, Lisbon and Porto. It sells web development, SEO, GEO and AEO, AI automation and hosting as separate, individually priced line items.
It runs a dedicated GEO and AEO page listing concrete deliverables: llms.txt implementation, JSON-LD schema for FAQPage, HowTo, Article and LocalBusiness types, crawler configuration for GPTBot, ClaudeBot and PerplexityBot, and monthly citation monitoring across ChatGPT, Perplexity and Gemini. It is the only agency here that publishes an actual price for the work.
You want a technically specific GEO and AEO setup at a published price rather than a custom quote.
- Publishes an actual price, a 150 euro one-time setup package plus optional monitoring from 90 euros a month
- GEO and AEO get a dedicated page with named technical deliverables rather than one blended pitch
- Registered Portuguese company with its company number shown on the site
- A single-owner company spanning web development, chatbots, 3D printing and AI automation, so search is one of many offerings
- Case studies on its site are anonymised, so named client results cannot be checked before signing
Infinidata
Infinidata is a Lisbon digital marketing agency stating more than ten years in the market, offering SEO, paid advertising, web development and a combined AEO and GEO service. Its homepage client logos include SAP, Kyocera, Generix and Banco BAI Cabo Verde.
Its AEO and GEO page breaks the work into five named steps: an AI presence audit across ChatGPT, Perplexity and Gemini, content optimisation for citation using schema and direct answers, trust signal building, continuous mention monitoring, and a content strategy targeting both assistants and Google. It is one of the few agencies here showing checkable large-brand clients on its own homepage.
You want AEO and GEO folded into a broader retainer with an agency that already serves enterprise accounts.
- Client logos include checkable large accounts across software, hardware and banking
- The AEO and GEO service is broken into five named steps rather than one pitch
- States more than ten years operating in Portuguese digital marketing
- No pricing, case study numbers or AI-specific client results are published, only the general logo wall
- No exact founding year is stated, only a rounded tenure claim
PortugalSEO
PortugalSEO is a team-based agency founded in 2014 and based in Ponte de Lima in northern Portugal. It sells traditional SEO alongside a combined GEO and AEO offering aimed at Google AI Overviews, ChatGPT and similar tools.
Its AI search page names both GEO and AEO explicitly and lists six deliverables: citation tracking, featured snippet optimisation, schema markup, voice search optimisation, AI-readiness content strategy and knowledge panel development. Its about page states more than 12 years in the Portuguese market and over 200 completed projects.
You want one team handling classic SEO plus GEO and AEO together, from a business with a stated founding date and a named founder.
- States an explicit founding year and names its founder, which most agencies in this market do not
- GEO and AEO are named and described with six concrete deliverables rather than bundled into one line
- Publishes a specific project count on its own about page
- No individual client names or AI visibility case study numbers are published, only aggregate claims
- Based in a small town rather than a major city, so in-person meetings may mean travel
How we ranked these agencies
- How central answer-engine work is to the practice, not a bolt-on service line
- Third-party review score on Clutch, GoodFirms or G2 where published
- Named services and a clear, public description of the offer
- Company longevity and team size
- Fit for enterprise versus small and mid-size brands
- Pricing transparency
- Evidence of real, named client work
Every agency listed is real and operating. Founding years, ratings and services come from the agency website or a third-party review platform, verified 2026-09-17. Where a figure is not published, the page says so rather than estimating.
Why work with a AEO agency in Portugal
Google handles the large majority of Portuguese search, so most agencies here still sell classic SEO as the core product and treat GEO or AEO as an added service line rather than a standalone practice.
Several of the smaller firms are registered as single-owner limited companies. You are often hiring one senior operator and a small team even where the brand presents as a full agency, so ask who does the work.
Public review coverage is thin. Even the Portuguese firms listed on Clutch mostly carry single-digit review counts, so ask a shortlist for direct references rather than leaning on star ratings.
Portuguese-language content also reaches Brazil, so a client logo wall may include accounts outside Portugal. Worth asking directly which named clients are Portugal-based.
Only one agency publishes prices, at 150 euros including VAT for a one-time GEO and AEO setup plus optional monitoring from 90 euros a month. The other six quote after a call.
Frequently asked
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