Company lists · Data refreshed September 2026

Top 25 SEO company for realtors based in Spain

RevenueBase identified 220 company matches for SEO company for realtors associated with Spain as of September 2026 and tracks 812 professional contacts across them, including 146 with verified work emails. Madrid is the largest hub.

This list covers company matches for SEO company for realtors 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
220Companies
812Contacts tracked
146Verified emails
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The 25 largest SEO company for realtors based in Spain

Ranked by team size
Top 25 of 220 company matches for SEO company for realtors 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 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
2Exact 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
3Exact 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
4Exact matchMarbella, SpainHQ recorded Sep 21, 202611-5022 contacts →

Exact match

“Posicionamiento Web SEO, Marketing Online y diseño de páginas web en Marbella.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
5Exact 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
6Exact 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
7Exact 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
8Exact 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
9Exact 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
10Exact 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
11Exact matchMadrid, SpainHQ recorded Sep 21, 202611-509 contacts →

Exact match

“Tu Posicionamiento Web: Empresa de Posicionamiento web ubicada en Madrid con una amplia experiencia en Marketing online.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
12Exact matchBarcelona, SpainHQ recorded Sep 21, 20261-107 contacts →

Exact match

“En nuestra Agencia de Marketing Digital, diseñamos e implementamos la estrategia de posicionamiento SEO en buscadores que tu sitio Web o eCommerce necesita para poder mejorar su…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
13Exact matchTorrelavega, SpainHQ recorded Sep 21, 20261-107 contacts →

Exact match

“Interactivaclic es una agencia ubicada en Cantabria dedicada al marketing online, somos especialistas en posicionamiento en buscadores (search engine optimization - SEO)…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
14Exact matchValencia, SpainHQ recorded Sep 21, 20261-107 contacts →

Exact match

“En helloseosem evolucionamos tu negocio para la nueva era digital.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
15Exact matchValencia/valència, SpainHQ recorded Sep 21, 20261-107 contacts →

Exact match

“Si lo que te gusta es el SEO, también le damos caña, toda web que sale de nuestro horno lleva el sello FAST AS A SHARK.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
16Exact matchBarcelona, SpainHQ recorded Sep 21, 20261-106 contacts →

Exact match

“Trabajar únicamente centrado en el SEO en los últimos 20 años, en todo tipo de proyectos y sectores, me ha permitido adquirir EXPERIENCIA (si, en mayúsculas) y un pensamiento…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
17Exact matchSant Julià De Vilatorta, SpainHQ recorded Sep 21, 20261-105 contacts →

Exact match

“Agencia SEO NuAnda especializada en estrategias de visibilidad online desde el año nuestra actividad principal es la transformación de los sitios web de nuestros clientes en…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
18Exact matchMurcia (murcia, SpainHQ recorded Sep 21, 20261-105 contacts →

Exact match

“Somos tu Agencia SEO en Murcia, te lo decimos alto y claro.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
19Exact matchSalamanca, SpainHQ recorded Sep 21, 20261-104 contacts →

Exact match

“Somos una agencia especializada SEO con una visión enfocada al desarrollo de negocio.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
20Exact matchPamplona, SpainHQ recorded Sep 21, 20261-104 contacts →

Exact match

“Agencia de marketing digital en Pamplona con más de 10 años de experiencia en el sector.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
21Exact matchBarcelona, SpainHQ recorded Sep 21, 20261-103 contacts →

Exact match

“At ClickCrows, we're not just passionate about helping businesses thrive in the digital world, we’re obsessed with it!”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
22Exact matchSant Adrià De Besòs, SpainHQ recorded Sep 21, 20261-103 contacts →

Exact match

“Te inquieta ser invisible para tus clientes?”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
23Exact matchCáceres, SpainHQ recorded Sep 21, 20261-103 contacts →

Exact match

“AGENCIA DE MARKETING ONLINE Especializada en sacar rendimiento a la estrategia web de las empresas.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
24Exact matchValladolid, SpainHQ recorded Sep 21, 20261-103 contacts →

Exact match

“Si tu negocio no está en internet no existe”.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
25Exact matchMadrid, SpainHQ recorded Sep 21, 20261-103 contacts →

Exact match

“Seo Agency in Spain”

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

Showing 25 of 220 SEO company for realtors based in Spain

See the full list, filter by size, metro and specialty, and access 146 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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SEO company for realtors based in Spain at a glance

As of Sep 21, 2026
18.0%Verified-email coverage
3.7Average contacts per company
1-10Median size (employees)
15.5%Largest-city concentration · Madrid
Sep 21, 2026Page data refreshed

Companies by employee count

1-10
205
11-50
14
51-200
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 220 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 “SEO company for realtors” 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 146 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 “SEO company for realtors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many SEO company for realtors are there based in Spain?

RevenueBase identified 220 company matches for SEO company for realtors 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 SEO company for realtors?

Madrid leads with 34 company records, followed by Barcelona (32) and Valencia (13).

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 146 professional contacts with verified work emails tracked across these 220 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.