Company lists · Data refreshed November 2026

Top 25 B2B sem agencies based in Spain

RevenueBase identified 705 company matches for B2B sem agencies associated with Spain as of November 2026 and tracks 5,393 professional contacts across them, including 831 with verified work emails. Madrid is the largest hub.

This list covers company matches for B2B sem 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 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
705Companies
5,393Contacts tracked
831Verified emails
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The 25 largest B2B sem agencies based in Spain

Ranked by team size
Top 25 of 705 company matches for B2B sem agencies based in 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, 202651-20083 contacts →

Exact match

“HMG es una agencia que pertenece a MIO Group, grupo empresarial de servicios integrales de Marketing y Publicidad presidido por Yago Arbeloa, y con capital cien por cien español.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchSanta Cruz De Tenerife, SpainHQ recorded Nov 6, 202651-20081 contacts →

Exact match

“Somos un equipo que crece y evoluciona con sus clientes, que se adapta a las nuevas tendencias para ofrecer, en todo momento a sus marcas, grandes dosis de creatividad y el mix de…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchChirivella, SpainHQ recorded Nov 6, 202611-5050 contacts →

Exact match

“Somos una agencia de Marketing y Ventas B2B.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchMadrid, SpainHQ recorded Nov 6, 202651-20048 contacts →

Exact match

“sum (suma | une | mueve) es la compañía que trabaja para empresas con modelos de negocio B2B con el objetivo de mejorar las cifras de la primera línea de la cuenta de resultados.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchBarcelona, SpainHQ recorded Nov 6, 202611-5044 contacts →

Exact match

“Keyweo is a digital marketing agency founded in 2018 and based in Barcelona.”

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

Exact match

“IDENTO - Diseño y Programación Web - Marketing Online, Posicionamiento en Buscadores, SEM, SEO, Redes Sociales, SMM, SMO, Email Marketing, Analítica Web, Google Analytics - Socio…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchMadrid, SpainHQ recorded Nov 6, 202651-20038 contacts →

Exact match

“We are a specialized multi-channel Digital Marketing and Media Agency.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchSant Cugat Del Vallés, SpainHQ recorded Nov 6, 202611-5038 contacts →

Exact match

“PGR is a full-service Agency Marketing for B2B market in the IT sector for Spain and Portugal.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchValencia, SpainHQ recorded Nov 6, 202611-5037 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 · Nov 6, 2026 · View company records in RevenueBase
10Exact 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
11Exact matchZaragoza, SpainHQ recorded Nov 6, 202651-20035 contacts →

Exact match

“Semmántica es una agencia especializada en acelerar el crecimiento digital de empresas.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact 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
13Exact matchBarcelona, SpainHQ recorded Nov 6, 202611-5032 contacts →

Exact match

“Somos una empresa joven, especializada en generar visitas comerciales, para desarrollar las relaciones entre empresas y poder así ocasionar el objetivo principal que es la…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchBarcelona, SpainHQ recorded Nov 6, 202611-5031 contacts →

Exact match

“Online Marketing Agency leader in the management and optimization of SEM campaigns.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchGijón, SpainHQ recorded Nov 6, 202611-5028 contacts →

Exact match

“Especialistas en marketing, publicidad, comuniciación, imagen corporativa, páginas Web, planificación de medios, campañas, social media, servicios SEM y SEO.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchMadrid, SpainHQ recorded Nov 6, 202611-5026 contacts →

Exact match

“Agencia servicios de marketing ON/OFF.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchBarcelona, SpainHQ recorded Nov 6, 202611-5025 contacts →

Exact match

“Experts at crafting search campaigns that drive revenue, increase traffic and establish strong brand authority.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchMadrid, SpainHQ recorded Nov 6, 202611-5025 contacts →

Exact match

“360º Full Service Agency.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchMataró, SpainHQ recorded Nov 6, 20261-1025 contacts →

Exact match

“Joan Boluda, Consultor de Marketing OnlineEspecializado en Posicionamiento Natural (SEO), Pago Por Clic (PPC), Redes Sociales (SMO) y Email Marketing.Si tienes claro tu plan de…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchMarbella, SpainHQ recorded Nov 6, 20261-1024 contacts →

Exact match

“You know Online ads is the key to automating and growing your business, but frankly - most have NO CLUE how to even go about promoting and selling their products and services…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchMadrid, SpainHQ recorded Nov 6, 202611-5023 contacts →

Exact match

“Online marketing services that we offer- Consultant in business development, marketing and digital transformation - Web page design worldwide - Organic positioning or SEO to…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchLas Palmas De Gran Canaria, SpainHQ recorded Nov 6, 20261-1021 contacts →

Exact match

“SM Consulting è una società di intermediazione commerciale B2B.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchMalaga, SpainHQ recorded Nov 6, 202611-5020 contacts →

Exact match

“Somos una agencia de marketing online y publicidad formada por un equipo de más de 20 profesionales.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact 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
25Exact matchBilbao, SpainHQ recorded Nov 6, 20261-1020 contacts →

Exact match

“Irudigital es una Agencia de publicidad online sita en Bilbao (Vizcaya).”

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

Showing 25 of 705 B2B sem agencies based in Spain

See the full list, filter by size, metro and specialty, and access 831 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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B2B sem agencies based in Spain at a glance

As of Nov 6, 2026
15.4%Verified-email coverage
7.6Average contacts per company
1-10Median size (employees)
24.1%Largest-city concentration · Madrid
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
563
11-50
128
51-200
8
201-500
1
1,001-5,000
1
10001+
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 705 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 “B2B sem 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 831 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 “B2B sem agencies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many B2B sem agencies are there based in Spain?

RevenueBase identified 705 company matches for B2B sem agencies associated with 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?

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

Which city has the most B2B sem agencies?

Madrid leads with 170 company records, followed by Barcelona (105) and Valencia (37).

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 831 professional contacts with verified work emails tracked across these 705 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.