Company lists · Data refreshed September 2026

Top 25 AI SEO agencies based in Portugal

Name: AI SEO agencies based in Portugal
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 277 companies tracked

RevenueBase identified 277 AI SEO agencies headquartered in Portugal as of September 2026 and tracks 937 professional contacts across them, including 138 with verified work emails and 52 with mobile numbers. Porto is the largest hub.

This list covers AI SEO agencies headquartered in Portugal, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 28, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 28, 2026 86% judged on-target in blind review

277Companies

937Contacts tracked

138Verified emails

52Mobile numbers

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The 25 largest AI SEO agencies based in Portugal

Ranked by team size

Top 25 of 277 AI SEO agencies based in Portugal, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to AI SEO agencies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Unik SEO - SEO Agency	Partial evidence	Algés, PortugalHQ checked Sep 28, 2026	11-50	29 contacts →
	Partial evidence “UniK SEO specializes in SEO, PPC advertising, Content Marketing, and Social Media Management.” Source: RevenueBase Database · checked Sep 28, 2026
2	Marco Gouveia	Partial evidence	Lisboa, PortugalHQ checked Sep 28, 2026	11-50	23 contacts →
	Partial evidence “Consultor WebMarketing com experiência comprovada nas áreas de SEO (Optimização de Sites para Motores de Pesquisa), SEA (Gestão de Campanhas AdWords, Sapo, Bing, Yahoo) SMO…” Source: RevenueBase Database · checked Sep 28, 2026
3	Gigantic Digital Growth	Partial evidence	Lisboa, PortugalHQ checked Sep 28, 2026	11-50	22 contacts →
	Partial evidence “Our mission is to grow the business of our customers through digital channels, associating the latest technology platforms in the areas of business intelligence, paid-media, SEO…” Source: RevenueBase Database · checked Sep 28, 2026
4	Bluesoft	Indirect evidence	Lisbon, PortugalHQ checked Sep 28, 2026	11-50	19 contacts →
	Indirect evidence “Na Bluesoft desenvolvemos e implementamos soluções digitais orientadas para a obtenção de resultados.” Source: RevenueBase Database · checked Sep 28, 2026
5	Oonify	Partial evidence	Marinha Grande, PortugalHQ checked Sep 28, 2026	1-10	16 contacts →
	Partial evidence “Agência especializada em Marketing Digital, Redes Sociais, Publicidade Online, SEO, Geração de Leads, Vídeo e Fotografia.” Source: RevenueBase Database · checked Sep 28, 2026
6	Digital Xperience	Partial evidence	Lisboa, PortugalHQ checked Sep 28, 2026	11-50	16 contacts →
	Partial evidence “SEO \| Social Media \| Google Adwords \| Google Analytics \| Leads Generations \| Web Development \| Business Coach \|” Source: RevenueBase Database · checked Sep 28, 2026
7	Lead The WAY	Indirect evidence	Amadora, PortugalHQ checked Sep 28, 2026	1-10	13 contacts →
	Indirect evidence “A Lead The Way, é uma agência de Marketing Digital criada para liderar o caminho do sucesso dos seus parceiros.” Source: RevenueBase Database · checked Sep 28, 2026
8	Synco Agência Digital	Indirect evidence	Leiria, PortugalHQ checked Sep 28, 2026	1-10	13 contacts →
	Indirect evidence “A Synco Agência Digital é uma agência de marketing digital focada em performance e resultados para nossos clientes.” Source: RevenueBase Database · checked Sep 28, 2026
9	Classy Advertising	Indirect evidence	Porto, PortugalHQ checked Sep 28, 2026	1-10	12 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 28, 2026
10	Welvaart	Indirect evidence	Lisbon, PortugalHQ checked Sep 28, 2026	11-50	12 contacts →
	Indirect evidence “FUELED BY A PASSION FOR TECHNOLOGY AND DIGITAL STRATEGY At the intersection of Technology Consulting and Digital Marketing, we empower businesses to innovate, grow, and thrive in…” Source: RevenueBase Database · checked Sep 28, 2026
11	Spartads Agência DE Marketing Digital	Indirect evidence	Porto, PortugalHQ checked Sep 28, 2026	1-10	12 contacts →
	Indirect evidence “Aumente a sua faturação com marketing estratégico e publicidade online O seu parceiro de Marketing e Vendas.” Source: RevenueBase Database · checked Sep 28, 2026
12	Memogadget	Indirect evidence	Maia, PortugalHQ checked Sep 28, 2026	11-50	11 contacts →
	Indirect evidence “Our goal is to develop your dream projects.” Source: RevenueBase Database · checked Sep 28, 2026
13	Constant Circle	Indirect evidence	Lisboa, PortugalHQ checked Sep 28, 2026	1-10	9 contacts →
	Indirect evidence “A Constant Circle é uma agência de marketing digital que impulsiona negócios de várias áreas de negócio para uma posição de liderança diferenciada através de uma abordagem…” Source: RevenueBase Database · checked Sep 28, 2026
14	Lemon Advertising	Indirect evidence	Porto, PortugalHQ checked Sep 28, 2026	1-10	9 contacts →
	Indirect evidence “Fortalecemos a presença online do seu negócio!” Source: RevenueBase Database · checked Sep 28, 2026
15	The Maker Marketing	Indirect evidence	Cascais, PortugalHQ checked Sep 28, 2026	1-10	8 contacts →
	Indirect evidence “We work Marketing with love and we help to grow your business.” Source: RevenueBase Database · checked Sep 28, 2026
16	Bspacy	Indirect evidence	Lisboa, PortugalHQ checked Sep 28, 2026	1-10	7 contacts →
	Indirect evidence “Bspacy is what you need to take your digital marketing and communication to an interstellar level.” Source: RevenueBase Database · checked Sep 28, 2026
17	Sales Engine Online	Indirect evidence	Carnaxide, PortugalHQ checked Sep 28, 2026	11-50	7 contacts →
	Indirect evidence “Sales Engine Online is a Marketing Digital Company from Portugal based on Lisbon and with offices in OPorto (Portugal), Shangai (China), Sao Paulo (Brazil), Madrid (Spain), Luanda…” Source: RevenueBase Database · checked Sep 28, 2026
18	Digitalfusion	Partial evidence	Matosinhos, PortugalHQ checked Sep 28, 2026	11-50	6 contacts →
	Partial evidence “Digital Fusion is a Portuguese Marketing Agency, focused on technology, methodology, SEO and trainign.” Source: RevenueBase Database · checked Sep 28, 2026
19	PPC Performance Agency	Indirect evidence	Ericeira, PortugalHQ checked Sep 28, 2026	1-10	6 contacts →
	Indirect evidence “Nº1 Digital Marketing Performance Agency.” Source: RevenueBase Database · checked Sep 28, 2026
20	Outmarketing Marketing Para TI	Indirect evidence	Oeiras, PortugalHQ checked Sep 28, 2026	1-10	6 contacts →
	Indirect evidence “A OUTMarketing é uma agência de marketing especializada no setor das Tecnologias de Informação.” Source: RevenueBase Database · checked Sep 28, 2026
21	Ascend Marketing Solutions	Indirect evidence	Viseu, PortugalHQ checked Sep 28, 2026	11-50	6 contacts →
	Indirect evidence “A ASCEND Marketing Solutions é uma agência de marketing digital certificada como Google Partner, reconhecida pelo rigor na aplicação das melhores práticas em publicidade online…” Source: RevenueBase Database · checked Sep 28, 2026
22	digiton.ai	Partial evidence	Lisbon, PortugalHQ checked Sep 28, 2026	1-10	6 contacts →
	Partial evidence “At Digiton.ai, we are on a mission to transform small and medium-sized enterprises by integrating cutting-edge artificial intelligence with comprehensive digital marketing…” Source: RevenueBase Database · checked Sep 28, 2026
23	Navia Digital	Indirect evidence	Tavira, PortugalHQ checked Sep 28, 2026	1-10	5 contacts →
	Indirect evidence “Digital Marketing Agency headquartered in Portugal and with offices in London and Algarve, providing specific digital solutions that achieve your business needs.” Source: RevenueBase Database · checked Sep 28, 2026
24	Terramoto DE Ideias	Partial evidence	Porto, PortugalHQ checked Sep 28, 2026	11-50	4 contacts →
	Partial evidence “SEO, SEM, Social Media e muito mais!” Source: RevenueBase Database · checked Sep 28, 2026
25	Ascendily	Partial evidence	Funchal, PortugalHQ checked Sep 28, 2026	1-10	4 contacts →
	Partial evidence “We're an eCommerce focused SEO marketing agency with expertise in search engine optimization and paid advertising for ambitious eCommerce brands” Source: RevenueBase Database · checked Sep 28, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: AI SEO agencies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names AI SEO agencies.
Partial evidence: Its own public description names part of AI SEO agencies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name AI SEO agencies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 277 AI SEO agencies based in Portugal

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AI SEO agencies based in Portugal at a glance

As of Sep 28, 2026

14.7%Verified-email coverage

5.5%Mobile-number coverage

3.4Average contacts per company

1-10Median size (employees)

13.4%Largest-city concentration · Porto

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

233

11-50

201-500

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 30.0d

830–30

6031–60

361–90

090–180

0180+

Company record updated

Median 83.0d

00–30

28431–60

28561–90

41790–180

62180+

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among AI SEO agencies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in Portugal whose own description of what they do matches “AI SEO agencies”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names AI SEO agencies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among AI SEO agencies, and records with no verified work email. Companies headquartered outside Portugal are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Every listed company carries at least one verified work email, 138 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on September 28, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

AI SEO agencies by metro

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names AI SEO agencies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many AI SEO agencies are there based in Portugal?

RevenueBase identified 277 AI SEO agencies headquartered in Portugal as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Unik SEO - SEO Agency, headquartered in Alges, tops this list with the largest team on record.

Which city has the most AI SEO agencies?

Porto leads with 37 headquartered companies, followed by Lisboa (36) and Lisbon (31).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 138 verified decision-maker contacts tracked across these 277 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 28, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.