Company lists · Data refreshed November 2026

Top 22 SEO agencies for api and integration platforms based in Madrid, Spain

RevenueBase identified 289 company matches for SEO agencies for api and integration platforms associated with Madrid, Spain as of November 2026 and tracks 1,598 professional contacts across them, including 241 with verified work emails. Across Spain, Madrid is the largest hub for this category.

This list covers company matches for SEO agencies for api and integration platforms associated with Madrid, 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 November 6, 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 Nov 6, 2026 How this list was built
289Companies
1,598Contacts tracked
241Verified emails
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The 22 largest SEO agencies for api and integration platforms based in Madrid, Spain

Ranked by team size
Top 22 of 289 company matches for SEO agencies for api and integration platforms based in Madrid, Spain, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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 Nov 6, 202611-5097 contacts →

Exact match

“Publisuites es la solución integral que lidera la nueva era del link building y el branded content.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchMadrid, SpainHQ recorded Nov 6, 202651-20040 contacts →

Exact match

“Relevant Group is a leading consultancy on digital marketing specialised on direct response and with a customized service for each project.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchMadrid, SpainHQ recorded Nov 6, 202611-5039 contacts →

Exact match

“Marketinet], agencia simbiótica de Marketing Digital.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchMadrid, SpainHQ recorded Nov 6, 202611-5035 contacts →

Exact match

“Agencia de marketing digital especialista en captación para el sector educativo y en ventas online para ecommerce.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchMadrid, SpainHQ recorded Nov 6, 202611-5034 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchMadrid, SpainHQ recorded Nov 6, 202611-5026 contacts →

Exact match

“A Brand New Way Góbalo es una agencia creativa digital donde interpretamos la realidad de forma estratégica.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchMadrid, SpainHQ recorded Nov 6, 202611-5021 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 · Nov 6, 2026 · View company records in RevenueBase
8Exact matchMadrid, SpainHQ recorded Nov 6, 20261-1020 contacts →

Exact match

“Somos una agencia de marketing digital en Madrid para marcas que quieren aparecer, captar y convertir sin vestir de estrategia lo que solo era improvisación.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchMadrid, SpainHQ recorded Nov 6, 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 · Nov 6, 2026 · View company records in RevenueBase
10Exact matchMadrid, SpainHQ recorded Nov 6, 20261-1019 contacts →

Exact match

“Comodoro Marketing es una agencia de marketing online en Madrid.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchMadrid, SpainHQ recorded Nov 6, 202611-5017 contacts →

Exact match

“Trabajamos el Marketing 360º para ofrecer al cliente soluciones integrales para desarrollar su negocio.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchMadrid, SpainHQ recorded Nov 6, 202611-5015 contacts →

Exact match

“Somos una Agencia Digital especializada en e-commerce: Paid Media, Analítica, CRO, Marketing Automation e Inteligencia Artificial.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchMadrid, SpainHQ recorded Nov 6, 202611-5015 contacts →

Exact match

“Agencia de Marketing Digital | Hacemos SEO, SEM, Diseño Web, Redes Sociales, Vídeo Marketing, Email Marketing y Mantenimiento de Sistemas.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchMadrid, SpainHQ recorded Nov 6, 20261-1013 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchMadrid, SpainHQ recorded Nov 6, 202611-5013 contacts →

Exact match

“We are a digital marketing consultancy that develops products and strategies through data.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchMadrid, SpainHQ recorded Nov 6, 202611-5012 contacts →

Exact match

“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.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchMadrid, SpainHQ recorded Nov 6, 202611-5012 contacts →

Exact match

“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)…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchMadrid, SpainHQ recorded Nov 6, 202611-5011 contacts →

Exact match

“SEOLeverage is an International e-commerce SEO agency with over 20 years of SEO experience.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchMadrid, SpainHQ recorded Nov 6, 20261-109 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchMadrid, SpainHQ recorded Nov 6, 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 · Nov 6, 2026 · View company records in RevenueBase
21Exact matchMadrid, SpainHQ recorded Nov 6, 20261-109 contacts →

Exact match

“Linkatomic: La herramienta definitiva para Linkbuilding, Visibilidad y Posicionamiento.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchMadrid, SpainHQ recorded Nov 6, 202611-508 contacts →

Exact match

“Somos agentes digitalizadores homologados.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 22 of 289 SEO agencies for api and integration platforms based in Madrid, Spain

See the full list, filter by size, metro and specialty, and access 241 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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SEO agencies for api and integration platforms based in Madrid, Spain at a glance

As of Nov 6, 2026
15.1%Verified-email coverage
5.5Average contacts per company
1-10Median size (employees)
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
216
11-50
62
51-200
7
201-500
1
501-1,000
2

Email recency for this list is measured across the whole Spain list rather than for Madrid, so it is reported there. Company counts and contact totals on this page are exact for Madrid, over 289 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 Madrid, Spain whose business descriptions match “SEO agencies for api and integration platforms” 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 241 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 November 6, 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 agencies for api and integration platforms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many SEO agencies for api and integration platforms are there based in Madrid, Spain?

RevenueBase identified 289 company matches for SEO agencies for api and integration platforms associated with Madrid, Spain as of November 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?

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

Which city in Spain has the most SEO agencies for api and integration platforms?

Madrid leads Spain with 289 company records, followed by Barcelona (210) and Valencia (79).

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 241 professional contacts with verified work emails tracked across these 289 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 November 6, 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.