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AI Visibility Index · September 2026

Digital marketing agencies in Porto that AI assistants recommend

We asked ChatGPT, Claude and Gemini the four questions a buyer asks when looking for digital marketing agencies in Porto, three times each, in Portuguese, and counted who they named. These are the businesses named in two or more of the 36 answers.

Check whether AI names youSee the ranking

Names are printed as the assistants wrote them. We have not checked that any of them is good, open, or real.

Digital marketing agencies · Porto
31%of answers named BloomIdea
Answers
36
Businesses named
50
Named only once
30
Named by 2+ assistants
1 of 20
Named again on a rerun
33%

Edition September 2026. Download the data

Asked for digital marketing agencies in Porto, ChatGPT, Claude and Gemini most often named BloomIdea (31% of answers), Webcomum (19%) and Agência 100% Digital (17%). Across 36 answers they named 50 different businesses, 30 of them only once. Each of four buyer questions was asked three times, in Portuguese, in September 2026.

The ranking

The AI Recommendation Rate is the fraction of the 36 answers that named a business. The range under it is a 95% confidence interval: where two ranges overlap, the gap between those businesses could be chance.

Digital marketing agencies in Porto named by AI assistants, September 2026
#BusinessAI Recommendation RateChatGPTClaudeGeminiQuestionsAvg. position
1BloomIdeaIs this your business?31%95%: 18 to 47%0%0%92%4 of 41.8
2WebcomumIs this your business?19%95%: 10 to 35%42%0%17%4 of 41.9
3Agência 100% DigitalIs this your business?17%95%: 8 to 32%0%0%50%3 of 42.2
4BrandCookIs this your business?17%95%: 8 to 32%0%0%50%2 of 43.8
5BYDASIs this your business?14%95%: 6 to 29%42%0%0%3 of 41.2
6AdclickIs this your business?14%95%: 6 to 29%42%0%0%4 of 42
7LOBAIs this your business?14%95%: 6 to 29%42%0%0%2 of 42.8
8BeeDigitalIs this your business?8%95%: 3 to 22%0%0%25%1 of 41
9BYAlso written BY - Digital AgencyIs this your business?8%95%: 3 to 22%0%0%25%2 of 41.7
10Wise PiratesIs this your business?8%95%: 3 to 22%25%0%0%2 of 42
11Agência 11Is this your business?8%95%: 3 to 22%0%0%25%2 of 44.7
12Link&GrowIs this your business?6%95%: 2 to 18%17%0%0%2 of 41
13BastardaIs this your business?6%95%: 2 to 18%17%0%0%1 of 42
14Bonsai MarketingIs this your business?6%95%: 2 to 18%0%0%17%1 of 42.5
15DengunIs this your business?6%95%: 2 to 18%17%0%0%1 of 42.5
16Legendary People + IdeasIs this your business?6%95%: 2 to 18%17%0%0%2 of 42.5
17BrandUpIs this your business?6%95%: 2 to 18%0%0%17%1 of 43.5
18NeoAttackIs this your business?6%95%: 2 to 18%0%0%17%1 of 43.5
19Whello PortugalIs this your business?6%95%: 2 to 18%0%0%17%1 of 43.5
20Pura ComunicaçãoIs this your business?6%95%: 2 to 18%0%0%17%2 of 44

Each assistant column is the share of that assistant's own answers. Questions counts how many of the four produced the name at least once; position is where it came in the answer's list, 1 being first. 30 more names came up in a single answer and are counted above but not listed.

Is this your business?

See what the assistants say about your business today. The free checker asks ChatGPT, Claude, Gemini and Grok two of the Index questions for this category, with the category and the place already filled in, and shows every answer word for word. About 30 seconds, no sign-up.

Check your businessNamed above? Add the badgeWhat the audit does

What each assistant said

The same questions, the same number of times, and often different names. Each column is one assistant's top five from the ranking above, with the share of its own answers that named them.

#ChatGPTClaudeGemini
1Webcomum42%No other name twiceBloomIdea92%
2BYDAS42%Agência 100% Digital50%
3Adclick42%BrandCook50%
4LOBA42%BeeDigital25%
5Wise Pirates25%BY25%

Claude named no business in 10 of its 12 answers.

Named here? Put it on your site

Every business in the ranking was named in two or more answers. The badge says that and nothing more: no position, because the ranges above do not support one. It links back to this page, so anyone can check.

Correct or remove a listing
Named by AI assistants: Digital marketing agencies in Porto, AIGROW AI Visibility Index, September 2026
<a href="https://aigrow.gg/index/marketing-agencies/porto"><img src="https://aigrow.gg/badges/index/2026-09/marketing-agencies/porto.svg" width="312" height="100" alt="Named by AI assistants: Digital marketing agencies in Porto, AIGROW AI Visibility Index, September 2026"></a>

The questions

Asked word for word, three times each, to every assistant, in Portuguese. The English under each is our translation. The prompt is the one the free scan uses. No web search, no location and no chat history, so every answer starts from the same place.

  1. 1Qual é a melhor agência de marketing digital no Porto?What is the best digital marketing agency in Porto?
  2. 2Quero mais clientes para o meu pequeno negócio no Porto. Que agência de marketing me recomendas?I want more customers for my small business in Porto. Which marketing agency would you recommend?
  3. 3Que agência no Porto é boa em SEO e Google Ads?Which agency in Porto is good at SEO and Google Ads?
  4. 4Que agência de marketing nas redes sociais no Porto me recomendas?Which social media marketing agency in Porto would you recommend?

How to read this page

The full method
What it measures
Which names these models produce when asked cold, from what they learned in training. It is not a review, a rating or our recommendation, and a business missing here may simply be one the models were never shown.
Why the ranges matter
36 answers is a sample. Asked again next month, most shares will move by a few points; the ranges say how far they could move by chance alone.
One business, several spellings
Branches, legal suffixes and spellings of one business are merged, and the other spellings are printed under its name. Names that might be two businesses are kept apart.
A name is wrong
If a business here is closed, misnamed or yours and you want it removed, tell us. We correct or remove it when the page is next published.

Elsewhere in the Index

Digital marketing agencies elsewhere
LisbonBelo HorizonteRio de JaneiroSão PauloAarhusAmsterdam
Also in Porto
DentistsLawyersAccountantsPlumbersGymsReal estate agencies

Is your business on this list?

The free scan asks the same assistants the questions your customers ask, scores whether they name you, and lists who they name instead.

Run the free AI scanRead the method

Edition September 2026 · published by Guglielmo Paesano, founder of AIGROW · data under CC BY 4.0