Company lists · Data refreshed September 2026

Top 25 Position 0 AI search agencies based in Spain

RevenueBase identified 568 company matches for position 0 AI search agencies associated with Spain as of September 2026 and tracks 2,351 professional contacts across them, including 375 with verified work emails. Barcelona is the largest hub.

This list covers company matches for position 0 AI search 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 21, 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 21, 2026 How this list was built
568Companies
2,351Contacts tracked
375Verified emails
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The 25 largest position 0 AI search agencies based in Spain

Ranked by team size
Top 25 of 568 company matches for position 0 AI search agencies based in Spain, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 21, 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 matchMadrid, SpainHQ recorded Sep 21, 2026201-500201 contacts →

Exact match

“En SIDN diseñamos el futuro digital de las marcas transformando el marketing digital a través de la tecnología y la IA.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
2Exact matchBarcelona, SpainHQ recorded Sep 21, 202651-200108 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
3Exact matchMadrid, SpainHQ recorded Sep 21, 202651-200105 contacts →

Exact match

“Merging human with digital.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
4Exact matchAlhama De Murcia, SpainHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
5Exact matchBarcelona, SpainHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
6Exact matchValencia, SpainHQ recorded Sep 21, 202611-5038 contacts →

Exact match

“Esta empresa se creó para dar respuesta a una necesidad cada vez más demandada: el posicionamiento web.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
7Exact matchBarcelona, SpainHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
8Exact matchSant Joan D'alacant, SpainHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
9Exact matchBarcelona, SpainHQ recorded Sep 21, 202611-5026 contacts →

Exact match

“No estás satisfecho con los resultados de Web?”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
10Exact matchMadrid, SpainHQ recorded Sep 21, 20261-1021 contacts →

Exact match

“Liten Lemon es una agencia de marketing digital ubicada en Madrid, España.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
11Exact matchBilbao, SpainHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
12Exact matchMadrid, SpainHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
13Exact matchA Coruña, SpainHQ recorded Sep 21, 202611-5017 contacts →

Exact match

“Premium Leads combines proprietary technologies developed in-house with extensive experience in online marketing and SEO strategies.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
14Exact matchBarcelona, SpainHQ recorded Sep 21, 202611-5015 contacts →

Exact match

“Seocoaching es una empresa especializada en posicionamiento web con resultados comprobados y servicios SEO garantizados.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
15Exact matchMadrid, SpainHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
16Exact matchMataró, SpainHQ recorded Sep 21, 202611-5014 contacts →

Exact match

“Explotación Web es una agencia de desarrollo web, SEO y marketing digital con sede en Mataró (Barcelona), en activo desde 2014.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
17Exact matchSan Sebastian, SpainHQ recorded Sep 21, 202611-5014 contacts →

Exact match

“Overalia is a digital marketing agency, with experience in web development since 1996 and a pioneer in the fields of search engine marketing, web analytics and online reputation.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
18Exact matchMadrid, SpainHQ recorded Sep 21, 20261-1013 contacts →

Exact match

“Localmetric es una agencia de marketing digital experta en SEO Local.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
19Exact matchPuerto De La Cruz, SpainHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
20Exact matchMadrid, SpainHQ recorded Sep 21, 202611-5012 contacts →

Exact match

“En Grouber Marketing, te ayudamos con una estrategia específica para tu negocio.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
21Exact matchBarcelona, SpainHQ recorded Sep 21, 202611-5011 contacts →

Exact match

“With roots and inspiration in Barcelona's iconic Pueblo Seco, Palo Seco is a digital marketing agency that empowers businesses like yours to achieve their online goals.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
22Exact matchPonferrada, SpainHQ recorded Sep 21, 20261-1011 contacts →

Exact match

“Inbound & SEO para eCommerces”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
23Exact matchVilablareix, SpainHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
24Exact matchQuart De Poblet, SpainHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
25Exact matchMadrid, SpainHQ recorded Sep 21, 20261-109 contacts →

Exact match

“Defining who we are is asking what we do.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase

Showing 25 of 568 position 0 AI search agencies based in Spain

See the full list, filter by size, metro and specialty, and access 375 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Position 0 AI search agencies based in Spain at a glance

As of Sep 21, 2026
16.0%Verified-email coverage
4.1Average contacts per company
1-10Median size (employees)
16.4%Largest-city concentration · Barcelona
Sep 21, 2026Page data refreshed

Companies by employee count

1-10
495
11-50
66
51-200
5
201-500
1
501-1,000
1

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 568 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 “position 0 AI search 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 375 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 21, 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 “position 0 AI search agencies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many position 0 AI search agencies are there based in Spain?

RevenueBase identified 568 company matches for position 0 AI search 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?

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

Which city has the most position 0 AI search agencies?

Barcelona leads with 93 company records, followed by Madrid (89) and Valencia (33).

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 375 professional contacts with verified work emails tracked across these 568 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 21, 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.