Company lists · Data refreshed September 2026

Top 25 Answer engine optimization companies based in Spain

Name: Answer engine optimization companies based in Spain
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 2, 2026 903 companies tracked

RevenueBase identified 903 answer engine optimization companies headquartered in Spain as of September 2026 and tracks 3,562 professional contacts across them, including 516 with verified work emails and 118 with mobile numbers. Madrid is the largest hub.

This list covers answer engine optimization companies headquartered in Spain, 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, how directly it supports the match, and when it was last checked. Data refreshed September 2, 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 Match evidence on every row Refreshed Sep 2, 2026 86% judged on-target in blind review

903Companies

3,562Contacts tracked

516Verified emails

118Mobile numbers

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The 25 largest answer engine optimization companies based in Spain

Ranked by team size

Top 25 of 903 answer engine optimization companies based in Spain, ranked by team size, largest first. Data refreshed Sep 2, 2026. Evidence rates how directly each company's own description names answer engine optimization companies: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#	Company	Headquarters	Employees	Contacts
1	BigseoIndirect evidence	Barcelona, Spain	51-200	110
	“En nuestra agencia SEO en Barcelona somos unos apasionados del posicionamiento web.” Source: company website · checked Sep 2, 2026
2	Royal ComunicaciónIndirect evidence	Barcelona, Spain	51-200	84
	“Royal Comunicación es una empresa dedicada al Marketing online teniendo como fin principal optimizar y rentabilizar los recursos de las empresas en la red.” Source: company website · checked Sep 2, 2026
3	internet.republicaPartial evidence	Madrid, Spain	51-200	73
	“25 years of experience in Digital Marketing, Search Engines, Social Media, Performance, e-Commerce, Media, Content… Our ™ approach (enhanced by AI) integrates Content, Media and…” Source: company website · checked Sep 2, 2026
4	InteramplifyIndirect evidence	Alhama De Murcia, Spain	51-200	73
	“Since 2012, at Interamplify, we have become strategic partners for brands and companies seeking to expand digitally on a global scale.” Source: company website · checked Sep 2, 2026
5	ComunicareIndirect evidence	Madrid, Spain	51-200	47
	“Comunicare es una empresa especializada en Marketing Online y Desarrollo Web para empresas.” Source: company website · checked Sep 2, 2026
6	ImprooveIndirect evidence	Madrid, Spain	51-200	43
	“We are a digital growth firm with SEO at its core, on a mission to build strong foundations for scalable growth ensuring our clients don't just participate in the market - they…” Source: company website · checked Sep 2, 2026
7	KeyweoIndirect evidence	Barcelona, Spain	11-50	39
	“Keyweo is a digital marketing agency founded in 2018 and based in Barcelona.” Source: company website · checked Sep 2, 2026
8	agenciaseo.euIndirect evidence	Valencia, Spain	11-50	37
	“Esta empresa se creó para dar respuesta a una necesidad cada vez más demandada: el posicionamiento web.” Source: company website · checked Sep 2, 2026
9	Idento Agencia DE Marketing DigitalIndirect evidence	Armilla, Spain	11-50	37
	“IDENTO - Diseño y Programación Web - Marketing Online, Posicionamiento en Buscadores, SEM, SEO, Redes Sociales, SMM, SMO, Email Marketing, Analítica Web, Google Analytics - Socio…” Source: company website · checked Sep 2, 2026
10	AcceseoIndirect evidence	Alcoy, Spain	11-50	31
	“de páginas web accesibles.” Source: company website · checked Sep 2, 2026
11	Human Level CommunicationsIndirect evidence	Dalacant, Spain	11-50	30
	“Since 2001, we've been boosting the online discoverability of leading international companies and media outlets.” Source: company website · checked Sep 2, 2026
12	EcoeurekaIndirect evidence	Madrid, Spain	11-50	17
	“Agencia de Marketing Digital \| Hacemos SEO, SEM, Diseño Web, Redes Sociales, Vídeo Marketing, Email Marketing y Mantenimiento de Sistemas.” Source: company website · checked Sep 2, 2026
13	NovaigrupIndirect evidence	Les Franqueses Del Valles, Spain	11-50	15
	“Novaigrup, agencia de ingeniería web y marketing en Internet.” Source: company website · checked Sep 2, 2026
14	SEO CoachingIndirect evidence	Barcelona, Spain	11-50	15
	“Seocoaching es una empresa especializada en posicionamiento web con resultados comprobados y servicios SEO garantizados.” Source: company website · checked Sep 2, 2026
15	Socialonce Marketing&internetIndirect evidence	Zaragoza, Spain	11-50	15
	“Somos un equipo de profesionales, técnicos en informática, programadores de software, diseñadores web y técnicos en posicionamiento SEO y marketing Online con amplia experiencia…” Source: company website · checked Sep 2, 2026
16	OveraliaPartial evidence	San Sebastian, Spain	11-50	14
	“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.” Source: company website · checked Sep 2, 2026
17	Estudio34Indirect evidence	Barcelona, Spain	11-50	13
	“Estudio34 is an online marketing agency based in Barcelona (Spain) that provides digital marketing services to businesses that either need to improve their online visibility or…” Source: company website · checked Sep 2, 2026
18	Optimanova SolutionsIndirect evidence	Puerto De La Cruz, Spain	11-50	12
	“In Optimanova we understand Web Optimisation as a way to take the best advantage from your website.” Source: company website · checked Sep 2, 2026
19	Palo SecoIndirect evidence	Barcelona, Spain	11-50	12
	“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.” Source: company website · checked Sep 2, 2026
20	SedigitalIndirect evidence	Madrid, Spain	11-50	12
	“SeDigital es una Agencia de Marketing Digital localizada en Madrid que presta sus servicios de SEO y SEM - PPC a otras empresas del ámbito nacional.” Source: company website · checked Sep 2, 2026
21	LacomunicaciónIndirect evidence	Quart De Poblet, Spain	11-50	9
	“Lacomunicación es una agencia de Marketing Digital en Valencia pionera en la consultoría SEO y el marketing digital, servicios que llevamos prestando desde 2004.” Source: company website · checked Sep 2, 2026
22	Rex4mediaIndirect evidence	Pollensa, Spain	11-50	8
	“Rex4media es tu Boutique Marketing Agency en Mallorca.” Source: company website · checked Sep 2, 2026
23	Santaconcha Digital PerformanceIndirect evidence	Granollers, Spain	11-50	8
	“Somos el Equipo A, un grupo de especialistas apasionados por el desarrollo web y el marketing digital, entrenados para llevar tu presencia digital a otro nivel y obsesionados con…” Source: company website · checked Sep 2, 2026
24	CreatiklabIndirect evidence	Sant Adria De Besos, Spain	11-50	5
	“Creatiklab es una agencia de marketing digital, SEO y Google Ads con sede en Barcelona.” Source: company website · checked Sep 2, 2026
25	Kala AgencyIndirect evidence	Madrid, Spain	11-50	3
	“Fundada por nativos digitales, Kala Agency se especializa en optimización SEO, diseño web, SEM para emprendedores y marcas listos para crear su voz digital.” Source: company website · checked Sep 2, 2026

Showing 25 of 903 answer engine optimization companies based in Spain

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Answer engine optimization companies based in Spain at a glance

As of Sep 2, 2026

1-10Median size (employees)

MadridLargest hub · 169 HQs

118Contacts with mobile numbers

Sep 2, 2026Data refreshed

Companies by employee count

1-10

782

11-50

104

51-200

201-500

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 answer engine optimization companies, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in Spain whose own description of what they do matches “answer engine optimization companies”. Matching reads each company's description, not its industry code or its name.
What we exclude: Companies whose own description does not clearly place them among answer engine optimization companies, and records with no verified work email. Companies headquartered outside Spain 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 an evidence 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, 516 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 2, 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.

Answer engine optimization companies by metro

Answer engine optimization companies in Madrid169
Answer engine optimization companies in Barcelona111
Answer engine optimization companies in Valencia38

Frequently asked

How many answer engine optimization companies are there based in Spain?

RevenueBase identified 903 answer engine optimization companies headquartered in Spain 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?

Bigseo, headquartered in Barcelona, tops this list with the largest team on record.

Which city has the most answer engine optimization companies?

Madrid leads with 169 headquartered companies, followed by Barcelona (111) and Valencia (38).

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 516 verified decision-maker contacts tracked across these 903 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 2, 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.