Company lists · Data refreshed September 2026

Top 25 AI content optimization agencies based in Spain

RevenueBase identified 401 company matches for AI content optimization agencies associated with Spain as of September 2026 and tracks 1,798 professional contacts across them, including 307 with verified work emails. Madrid is the largest hub.

This list covers company matches for AI content optimization agencies associated with Spain, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 19, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Sep 19, 2026 How this list was built
401Companies
1,798Contacts tracked
307Verified emails
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The 25 largest AI content optimization agencies based in Spain

Ranked by team size
Top 25 of 401 company matches for AI content optimization agencies based in Spain, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 19, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchBarcelona, SpainHQ recorded Sep 19, 202651-200108 contacts →

Exact match

“En nuestra agencia SEO en Barcelona somos unos apasionados del posicionamiento web.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
2Exact matchMadrid, SpainHQ recorded Sep 19, 202651-200105 contacts →

Exact match

“Merging human with digital.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
3Exact matchAlhama De Murcia, SpainHQ recorded Sep 19, 202651-20071 contacts →

Exact match

“Since 2012, at Interamplify, we have become strategic partners for brands and companies seeking to expand digitally on a global scale.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
4Exact matchBarcelona, SpainHQ recorded Sep 19, 202611-5049 contacts →

Exact match

“Con más de 20 años de experiencia, ayudamos a las marcas a convertir el SEO en un canal de captación escalable, medible y alineado con sus objetivos de negocio.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
5Exact matchBarcelona, SpainHQ recorded Sep 19, 202611-5038 contacts →

Exact match

“Keyweo is a digital marketing agency founded in 2018 and based in Barcelona.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
6Exact matchSant Joan D'alacant, SpainHQ recorded Sep 19, 202611-5031 contacts →

Exact match

“Since 2001, we've been boosting the online discoverability of leading international companies and media outlets.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
7Exact matchMadrid, SpainHQ recorded Sep 19, 202611-5024 contacts →

Exact match

“Sh Marketing está formado por un grupo de consultores de marketing digital con amplia experiencia en Search Marketing.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
8Exact matchBilbao, SpainHQ recorded Sep 19, 20261-1020 contacts →

Exact match

“Sembi Communication is a Digital Marketing Agency experts in SEO (Search Engine Optimization),(Search Engine Marketing), Media Digital Content, Web Design, Community Manager &…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
9Exact matchMadrid, SpainHQ recorded Sep 19, 202611-5019 contacts →

Exact match

“En YoSEOMarketing, somos la agencia líder en transformación digital, especializada en posicionamiento y resultados sostenibles.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
10Exact matchLogroño, SpainHQ recorded Sep 19, 20261-1017 contacts →

Exact match

“Una web, una campaña SEO, una campaña SEM o un community manager son conceptos inconexos que no te van a aportar los resultados que necesitas.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
11Exact matchJerez De La Frontera, SpainHQ recorded Sep 19, 202611-5016 contacts →

Exact match

“Somos Bring, tu agencia de Growth.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
12Exact matchLlanera, SpainHQ recorded Sep 19, 202611-5016 contacts →

Exact match

“Positio, agencia de marketing de contenidos especializada en posicionamiento SEO y SEM-PPC, analítica web, Social Media y blogging.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
13Exact matchMadrid, SpainHQ recorded Sep 19, 20261-1014 contacts →

Exact match

“Keytrends is the first content marketing platform that unites the power of AI and Google Trends data to maximise the visibility of Ecommerce business through content strategies.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
14Exact matchBilbao, SpainHQ recorded Sep 19, 202611-5014 contacts →

Exact match

“Somos una agencia de Marketing Digital Somos especialistas en Posicionamiento Web (SEO) Somos especialistas en Diseño Web Somos especialistas en Publicidad en Google Adwords Somos…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
15Exact matchPuerto De La Cruz, SpainHQ recorded Sep 19, 202611-5013 contacts →

Exact match

“In Optimanova we understand Web Optimisation as a way to take the best advantage from your website.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
16Exact matchBarcelona, SpainHQ recorded Sep 19, 202611-5012 contacts →

Exact match

“En Digital Growth nos integramos de forma fluida con el workflow de tu empresa.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
17Exact matchSeville, SpainHQ recorded Sep 19, 202611-5011 contacts →

Exact match

“En alGenio somos un equipo de profesionales del marketing online, y nuestra misión es la de generar negocio a nuestros clientes a través de internet.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
18Exact matchVilablareix, SpainHQ recorded Sep 19, 20261-1010 contacts →

Exact match

“De la mà d’Eva Olivares i Xevi Sañé neix la primera agència 100% SEO a Girona.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
19Exact matchAlicante, SpainHQ recorded Sep 19, 202611-5010 contacts →

Exact match

“Media Motive sl una agencia de publicidad que se dedica al Marketing online.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
20Exact matchValencia, SpainHQ recorded Sep 19, 20261-1010 contacts →

Exact match

“Agencia especializada en el mundo del marketing online: SEO, CRO y Analítica Web.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
21Exact matchQuart De Poblet, SpainHQ recorded Sep 19, 202611-509 contacts →

Exact match

“Lacomunicación es una agencia de Marketing Digital en Valencia pionera en la consultoría SEO y el marketing digital, servicios que llevamos prestando desde 2004.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
22Exact matchMadrid, SpainHQ recorded Sep 19, 20261-109 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
23Exact matchBarcelona, SpainHQ recorded Sep 19, 202611-509 contacts →

Exact match

“Spain’s first Digital Marketing agency closed its doors in March of 2025 after 30 years of Innovation.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
24Exact matchSalamanca, SpainHQ recorded Sep 19, 202611-509 contacts →

Exact match

“En Digidisa creamos tu Estrategia Digital.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
25Exact matchMadrid, SpainHQ recorded Sep 19, 202611-509 contacts →

Exact match

“Nuestra agencia de Marketing Online 360º, forma parte del Grupo QDQ: posicionamiento web en buscadores SEO y SEM, analítica web y conversión.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase

Showing 25 of 401 AI content optimization agencies based in Spain

See the full list, filter by size, metro and specialty, and access 307 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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AI content optimization agencies based in Spain at a glance

As of Sep 19, 2026
17.1%Verified-email coverage
4.5Average contacts per company
1-10Median size (employees)
18.5%Largest-city concentration · Madrid
Sep 19, 2026Page data refreshed

Companies by employee count

1-10
338
11-50
57
51-200
5

Email recency for this list is measured worldwide rather than for Spain, so it is reported there. Company counts and contact totals on this page are exact for Spain, over 401 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Company records associated with Spain whose business descriptions match “AI content optimization agencies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 307 professional contacts with verified work emails across the full matched dataset. 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 19, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “AI content optimization agencies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many AI content optimization agencies are there based in Spain?

RevenueBase identified 401 company matches for AI content optimization agencies associated with Spain as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Bigseo tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most AI content optimization agencies?

Madrid leads with 74 company records, followed by Barcelona (63) and Valencia (26).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 307 professional contacts with verified work emails tracked across these 401 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 19, 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 SmartSearch, 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.