Company lists · Data refreshed September 2026

Top 23 Marketplace SEO agencies based in Madrid, Spain

Name: Marketplace SEO agencies based in Madrid, Spain
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 5, 2026 211 companies tracked

RevenueBase identified 211 marketplace SEO agencies headquartered in Madrid, Spain as of September 2026 and tracks 1,096 professional contacts across them, including 182 with verified work emails. Madrid is the largest hub.

This list covers marketplace SEO agencies headquartered in Madrid, 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 5, 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 HQ checked on every row Match evidence on every row Refreshed Sep 5, 2026 86% judged on-target in blind review

211Companies

1,096Contacts tracked

182Verified emails

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The 23 largest marketplace SEO agencies based in Madrid, Spain

Ranked by team size

Top 23 of 211 marketplace SEO agencies based in Madrid, Spain, ranked by team size, largest first. Data refreshed Sep 5, 2026. Evidence rates how directly each company's own description names marketplace SEO agencies: 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	Royal ComunicaciónIndirect evidence	Madrid, SpainHQ checked Sep 5, 2026	51-200	85
	“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 5, 2026
2	Digital GroupIndirect evidence	Madrid, SpainHQ checked Sep 5, 2026	51-200	35
	“We are a specialized multi-channel Digital Marketing and Media Agency.” Source: company website · checked Sep 5, 2026
3	Marketalia Marketing OnlineIndirect evidence	Madrid, SpainHQ checked Sep 5, 2026	11-50	31
	“Nuestro Objetivo como agencia de publicidad online es potenciar el negocio de nuestros clientes mediante la implementación de estrategias de marketing online para alcanzar sus…” Source: company website · checked Sep 5, 2026
4	MarketinhouseIndirect evidence	Madrid, SpainHQ checked Sep 5, 2026	11-50	30
	“Agencia de marketing digital especialista en captación para el sector educativo y en ventas online para ecommerce.” Source: company website · checked Sep 5, 2026
5	DOS Setenta Marketing & DesarrolloPartial evidence	Madrid, SpainHQ checked Sep 5, 2026	11-50	28
	“Online marketing services that we offer- Consultant in business development, marketing and digital transformation - Web page design worldwide - Organic positioning or SEO to…” Source: company website · checked Sep 5, 2026
6	ConvertixPartial evidence	Madrid, SpainHQ checked Sep 5, 2026	11-50	23
	“Convertix is an International SEO & Performance Marketing Agency with offices in Madrid and Milan serving clients in 20+ markets and 10+ languages.” Source: company website · checked Sep 5, 2026
7	Liten LemonIndirect evidence	Madrid, SpainHQ checked Sep 5, 2026	1-10	21
	“Liten Lemon es una agencia de marketing digital ubicada en Madrid, España.” Source: company website · checked Sep 5, 2026
8	Comodoro MarketingIndirect evidence	Madrid, SpainHQ checked Sep 5, 2026	1-10	19
	“Comodoro Marketing es una agencia de marketing online en Madrid.” Source: company website · checked Sep 5, 2026
9	Yoseo MarketingIndirect evidence	Madrid, SpainHQ checked Sep 5, 2026	11-50	19
	“En YoSEOMarketing, somos la agencia líder en transformación digital, especializada en posicionamiento y resultados sostenibles.” Source: company website · checked Sep 5, 2026
10	KdigitalIndirect evidence	Madrid, SpainHQ checked Sep 5, 2026	11-50	17
	“Trabajamos el Marketing 360º para ofrecer al cliente soluciones integrales para desarrollar su negocio.” Source: company website · checked Sep 5, 2026
11	EcoeurekaPartial evidence	Madrid, SpainHQ checked Sep 5, 2026	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 5, 2026
12	SedigitalPartial evidence	Madrid, SpainHQ checked Sep 5, 2026	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 5, 2026
13	SeoleveragePartial evidence	Madrid, SpainHQ checked Sep 5, 2026	11-50	9
	“SEOLeverage is an International e-commerce SEO agency with over 20 years of SEO experience.” Source: company website · checked Sep 5, 2026
14	ScrollingIndirect evidence	Madrid, SpainHQ checked Sep 5, 2026	1-10	9
	Source: company website · checked Sep 5, 2026
15	TU Posicionamiento WEBIndirect evidence	Madrid, SpainHQ checked Sep 5, 2026	11-50	9
	“Tu Posicionamiento Web: Empresa de Posicionamiento web ubicada en Madrid con una amplia experiencia en Marketing online.” Source: company website · checked Sep 5, 2026
16	OptimizaclickPartial evidence	Madrid, SpainHQ checked Sep 5, 2026	11-50	9
	“Nuestra agencia de Marketing Online 360º, forma parte del Grupo QDQ: posicionamiento web en buscadores SEO y SEM, analítica web y conversión.” Source: company website · checked Sep 5, 2026
17	bocetos.comPartial evidence	Madrid, SpainHQ checked Sep 5, 2026	11-50	9
	“Bocetos es una Agencia de Marketing Online Partner de Google con sede en Madrid, y especializada en: Diseño de Páginas Web Posicionamiento en Google (seo o resultados naturales)…” Source: company website · checked Sep 5, 2026
18	Moderna DigitalIndirect evidence	Madrid, SpainHQ checked Sep 5, 2026	1-10	8
	“Bienvenidos a Moderna Digital!” Source: company website · checked Sep 5, 2026
19	DobleoIndirect evidence	Madrid, SpainHQ checked Sep 5, 2026	11-50	7
	“dobleO es una agencia de marketing online especializada en diseñar e implementar estrategias de marketing en buscadores, gestión de la reputación online, marketing en medios…” Source: company website · checked Sep 5, 2026
20	Z4 StudiosIndirect evidence	Madrid, SpainHQ checked Sep 5, 2026	11-50	6
	“Web Design and Digital Marketing Agency in Madrid.” Source: company website · checked Sep 5, 2026
21	PosittionPartial evidence	Madrid, SpainHQ checked Sep 5, 2026	1-10	6
	“We are an Exclusive SEO Agency with presence in Argentina and Spain, working for the main markets of Latin America and Europe.” Source: company website · checked Sep 5, 2026
22	internet4e.comIndirect evidence	Madrid, SpainHQ checked Sep 5, 2026	1-10	6
	“Empresa especializada en Marketing OnLine EFICIENTE para la PYME.” Source: company website · checked Sep 5, 2026
23	PEACKPartial evidence	Madrid, SpainHQ checked Sep 5, 2026	1-10	5
	“Jeune agence de webmarketing basée à Madrid, nous accompagnons et prenons en charge votre SEO ou vos Ads en ligne depuis avril 2019.” Source: company website · checked Sep 5, 2026

Showing 23 of 211 marketplace SEO agencies based in Madrid, Spain

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Marketplace SEO agencies based in Madrid, Spain at a glance

As of Sep 5, 2026

1-10Median size (employees)

MadridLargest hub · 211 HQs

Contacts with mobile numbers

Sep 5, 2026Data refreshed

Companies by employee count

1-10

168

11-50

51-200

501-1,000

Email recency for this list is measured across the whole Spain list rather than this city, so it is reported there. Company counts and contact totals on this page are exact for Madrid, over 211 companies.

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 marketplace SEO agencies, 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 Madrid, Spain whose own description of what they do matches “marketplace SEO agencies”. 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 marketplace SEO agencies, and records with no verified work email. Companies headquartered outside Madrid 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, 182 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 5, 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.

Marketplace SEO agencies by metro in Spain

Marketplace SEO agencies in Madrid211
Marketplace SEO agencies in Barcelona119
Marketplace SEO agencies in Valencia52
Marketplace SEO agencies in Malaga33
Marketplace SEO agencies in Alicante25

Frequently asked

How many marketplace SEO agencies are there based in Madrid, Spain?

RevenueBase identified 211 marketplace SEO agencies headquartered in Madrid, 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?

Royal Comunicación, headquartered in Madrid, tops this list with the largest team on record.

Which city has the most marketplace SEO agencies?

Madrid leads with 211 headquartered companies, followed by Barcelona (119) and Valencia (52).

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 182 verified decision-maker contacts tracked across these 211 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 5, 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.