Company lists · Data refreshed September 2026
Top 25 SEO firms based in Spain
RevenueBase identified 1,246 company matches for SEO firms associated with Spain as of September 2026 and tracks 4,854 professional contacts across them, including 638 with verified work emails. Madrid is the largest hub.
This list covers company matches for SEO firms 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 19, 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.
The 25 largest SEO firms based in Spain
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 108 contacts → | ||||
Exact match “En nuestra agencia SEO en Barcelona somos unos apasionados del posicionamiento web.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 2 | 85 contacts → | ||||
Exact match “Royal Comunicación es una empresa dedicada al Marketing online teniendo como fin principal optimizar y rentabilizar los recursos de las empresas en la red.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 3 | 71 contacts → | ||||
Exact match “Since 2012, at Interamplify, we have become strategic partners for brands and companies seeking to expand digitally on a global scale.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 4 | 49 contacts → | ||||
Exact match “Con más de 20 años de experiencia, ayudamos a las marcas a convertir el SEO en un canal de captación escalable, medible y alineado con sus objetivos de negocio.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 5 | 38 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 19, 2026 · View company records in RevenueBase | |||||
| 6 | 38 contacts → | ||||
Exact match “Keyweo is a digital marketing agency founded in 2018 and based in Barcelona.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 7 | 37 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 · Sep 19, 2026 · View company records in RevenueBase | |||||
| 8 | 31 contacts → | ||||
Exact match “de páginas web accesibles.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 9 | 31 contacts → | ||||
Exact match “Since 2001, we've been boosting the online discoverability of leading international companies and media outlets.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 10 | 31 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 · Sep 19, 2026 · View company records in RevenueBase | |||||
| 11 | 30 contacts → | ||||
Exact match “Online Marketing Agency leader in the management and optimization of SEM campaigns.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 12 | 25 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 · Sep 19, 2026 · View company records in RevenueBase | |||||
| 13 | 24 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 · Sep 19, 2026 · View company records in RevenueBase | |||||
| 14 | 23 contacts → | ||||
Exact match “Convertix is an International SEO & Performance Marketing Agency with offices in Madrid and Milan serving clients in 20+ markets and 10+ languages.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 15 | 22 contacts → | ||||
Exact match “Posicionamiento Web SEO, Marketing Online y diseño de páginas web en Marbella.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 16 | 21 contacts → | ||||
Exact match “Liten Lemon es una agencia de marketing digital ubicada en Madrid, España.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 17 | 20 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 19, 2026 · View company records in RevenueBase | |||||
| 18 | 19 contacts → | ||||
Exact match “Consultora de Marketing online, estrategias de marketing digital y posicionamiento web y marketing en buscadores.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 19 | 19 contacts → | ||||
Exact match “En YoSEOMarketing, somos la agencia líder en transformación digital, especializada en posicionamiento y resultados sostenibles.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 20 | 17 contacts → | ||||
Exact match “Trabajamos el Marketing 360º para ofrecer al cliente soluciones integrales para desarrollar su negocio.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 21 | 17 contacts → | ||||
Exact match “Premium Leads combines proprietary technologies developed in-house with extensive experience in online marketing and SEO strategies.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 22 | 17 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 · Sep 19, 2026 · View company records in RevenueBase | |||||
| 23 | 17 contacts → | ||||
Exact match “Websdirect es una empresa que ofrece soluciones completas para internet desde 1998, nuestras oficinas se encuentra en Madrid, España.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 24 | 16 contacts → | ||||
Exact match “Somos Bring, tu agencia de Growth.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 25 | 16 contacts → | ||||
Exact match “Somos 10 especialistas full stack SEO.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
RevenueBase SmartSearch
Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.
This list uses Exact for “SEO firms”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.
Showing 25 of 1,246 SEO firms based in Spain
See the full list, filter by size, metro and specialty, and access 638 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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SEO firms based in Spain at a glance
As of Sep 19, 2026Companies by employee count
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 1,246 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 firms” 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 638 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 19, 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.
SEO firms by metro
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 firms”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many SEO firms are there based in Spain?
RevenueBase identified 1,246 company matches for SEO firms 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 firms?
Madrid leads with 229 company records, followed by Barcelona (155) and Valencia (63).
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 638 professional contacts with verified work emails tracked across these 1,246 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 19, 2026.
Ready to reach these companies? Verified emails and direct dials for all 1,246 SEO firms based in Spain. Start with a free account, no credit card.
Download this list →Related lists
SEO firms by geography
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- SEO firms based in Perth, Australia
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- SEO firms based in Dhaka, Bangladesh
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- SEO firms based in Curitiba, Brazil
- SEO firms based in Rio De Janeiro, Brazil
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Browse the directory
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.
More company lists
Company intelligence · public preview
Top 25 SEO firms based in Spain
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 1,246 matching company records for SEO firms based in Spain, with 4,854 tracked contacts and 638 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 19, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 SEO firms based in Spain
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  Bigseobigseo.comHQ: Barcelona, SpainReported employees: 51-200 | Barcelona, Spain | 51-200 | Exact match | 108 contacts → |
“En nuestra agencia SEO en Barcelona somos unos apasionados del posicionamiento web.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Royal Comunicaciónroyalcomunicacion.comHQ: Madrid, SpainReported employees: 51-200 | Madrid, Spain | 51-200 | Exact match | 85 contacts → |
“Royal Comunicación es una empresa dedicada al Marketing online teniendo como fin principal optimizar y rentabilizar los recursos de las empresas en la red.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Interamplifyinteramplify.comHQ: Alhama De Murcia, SpainReported employees: 51-200 | Alhama De Murcia, Spain | 51-200 | Exact match | 71 contacts → |
“Since 2012, at Interamplify, we have become strategic partners for brands and companies seeking to expand digitally on a global scale.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  seocom.agencyseocom.agencyHQ: Barcelona, SpainReported employees: 11-50 | Barcelona, Spain | 11-50 | Exact match | 49 contacts → |
“Con más de 20 años de experiencia, ayudamos a las marcas a convertir el SEO en un canal de captación escalable, medible y alineado con sus objetivos de negocio.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  agenciaseo.euagenciaseo.euHQ: Valencia, SpainReported employees: 11-50 | Valencia, Spain | 11-50 | Exact match | 38 contacts → |
“Esta empresa se creó para dar respuesta a una necesidad cada vez más demandada: el posicionamiento web.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Keyweokeyweo.comHQ: Barcelona, SpainReported employees: 11-50 | Barcelona, Spain | 11-50 | Exact match | 38 contacts → |
“Keyweo is a digital marketing agency founded in 2018 and based in Barcelona.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Idento Agencia DE Marketing Digitalidento.esHQ: Armilla, SpainReported employees: 11-50 | Armilla, Spain | 11-50 | Exact match | 37 contacts → |
“IDENTO - Diseño y Programación Web - Marketing Online, Posicionamiento en Buscadores, SEM, SEO, Redes Sociales, SMM, SMO, Email Marketing, Analítica Web, Google Analytics - Socio…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Acceseoacceseo.comHQ: Alcoy, SpainReported employees: 11-50 | Alcoy, Spain | 11-50 | Exact match | 31 contacts → |
“de páginas web accesibles.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Human Level Communicationshumanlevel.comHQ: Sant Joan D'alacant, SpainReported employees: 11-50 | Sant Joan D'alacant, Spain | 11-50 | Exact match | 31 contacts → |
“Since 2001, we've been boosting the online discoverability of leading international companies and media outlets.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Marketalia Marketing Onlinemarketalia.comHQ: Madrid, SpainReported employees: 11-50 | Madrid, Spain | 11-50 | Exact match | 31 contacts → |
“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 description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Jevnetjevnet.esHQ: Barcelona, SpainReported employees: 11-50 | Barcelona, Spain | 11-50 | Exact match | 30 contacts → |
“Online Marketing Agency leader in the management and optimization of SEM campaigns.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  boluda.comboluda.comHQ: Mataró, SpainReported employees: 1-10 | Mataró, Spain | 1-10 | Exact match | 25 contacts → |
“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 description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  SH Marketingsh.marketingHQ: Madrid, SpainReported employees: 11-50 | Madrid, Spain | 11-50 | Exact match | 24 contacts → |
“Sh Marketing está formado por un grupo de consultores de marketing digital con amplia experiencia en Search Marketing.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Convertixconvertix.netHQ: Madrid, SpainReported employees: 11-50 | Madrid, Spain | 11-50 | Exact match | 23 contacts → |
“Convertix is an International SEO & Performance Marketing Agency with offices in Madrid and Milan serving clients in 20+ markets and 10+ languages.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Nubeseonubeseo.esHQ: Marbella, SpainReported employees: 11-50 | Marbella, Spain | 11-50 | Exact match | 22 contacts → |
“Posicionamiento Web SEO, Marketing Online y diseño de páginas web en Marbella.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Liten Lemonlitenlemon.comHQ: Madrid, SpainReported employees: 1-10 | Madrid, Spain | 1-10 | Exact match | 21 contacts → |
“Liten Lemon es una agencia de marketing digital ubicada en Madrid, España.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Sembi Comunicaciónsembi.esHQ: Bilbao, SpainReported employees: 1-10 | Bilbao, Spain | 1-10 | Exact match | 20 contacts → |
“Sembi Communication is a Digital Marketing Agency experts in SEO (Search Engine Optimization),(Search Engine Marketing), Media Digital Content, Web Design, Community Manager &…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Coodexcoodex.esHQ: Alicante, SpainReported employees: 1-10 | Alicante, Spain | 1-10 | Exact match | 19 contacts → |
“Consultora de Marketing online, estrategias de marketing digital y posicionamiento web y marketing en buscadores.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Yoseo Marketingyoseomarketing.comHQ: Madrid, SpainReported employees: 11-50 | Madrid, Spain | 11-50 | Exact match | 19 contacts → |
“En YoSEOMarketing, somos la agencia líder en transformación digital, especializada en posicionamiento y resultados sostenibles.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Kdigitalk-digital.esHQ: Madrid, SpainReported employees: 11-50 | Madrid, Spain | 11-50 | Exact match | 17 contacts → |
“Trabajamos el Marketing 360º para ofrecer al cliente soluciones integrales para desarrollar su negocio.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Premium Leadspremiumleads.comHQ: A Coruña, SpainReported employees: 11-50 | A Coruña, Spain | 11-50 | Exact match | 17 contacts → |
“Premium Leads combines proprietary technologies developed in-house with extensive experience in online marketing and SEO strategies.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Ecoeurekaecoeureka.comHQ: Madrid, SpainReported employees: 11-50 | Madrid, Spain | 11-50 | Exact match | 17 contacts → |
“Agencia de Marketing Digital | Hacemos SEO, SEM, Diseño Web, Redes Sociales, Vídeo Marketing, Email Marketing y Mantenimiento de Sistemas.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Websdirectwebsdirect.esHQ: Madrid, SpainReported employees: 11-50 | Madrid, Spain | 11-50 | Exact match | 17 contacts → |
“Websdirect es una empresa que ofrece soluciones completas para internet desde 1998, nuestras oficinas se encuentra en Madrid, España.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Bring Connections Seo, Ppc, CRO & UX UI Designbringconnections.comHQ: Jerez De La Frontera, SpainReported employees: 11-50 | Jerez De La Frontera, Spain | 11-50 | Exact match | 16 contacts → |
“Somos Bring, tu agencia de Growth.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Seobideseobide.comHQ: Abadiño, SpainReported employees: 1-10 | Abadiño, Spain | 1-10 | Exact match | 16 contacts → |
“Somos 10 especialistas full stack SEO.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 1,246 company matches
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SEO firms: dataset insights
September 19, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
1,242 records in the displayed employee bands.
4 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 1,246 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 19, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
SEO firms by metro
Questions about this company list
What does Exact match mean for SEO firms?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many SEO firms did RevenueBase find based in Spain?
The saved snapshot records 1,246 matching company records, 4,854 tracked contacts and 638 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 19, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
SEO firms by geography
- SEO firms based in Brisbane, Australia
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- SEO firms based in Melbourne, Australia
- SEO firms based in Perth, Australia
- SEO firms based in Sydney, Australia
- SEO firms based in Dhaka, Bangladesh
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- SEO firms based in Curitiba, Brazil
- SEO firms based in Rio De Janeiro, Brazil
- SEO firms based in Sao Paulo, Brazil
- SEO firms based in Calgary, Canada
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Browse the directory
Cite this list
RevenueBase Data Team. Top 25 SEO firms based in Spain. Snapshot: September 19, 2026. https://revenuebase.ai/companies/seo-firms/spain.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
Company intelligence · public preview
Top 25 SEO firms based in Spain
RevenueBase records 1,246 matching company records for SEO firms based in Spain, with 4,854 tracked contacts and 638 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 19, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 SEO firms based in Spain
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | Bigseobigseo.com HQ: Barcelona, SpainReported employees: 51-200 | Barcelona, Spain | 51-200 | Exact match | 108 contacts → |
“En nuestra agencia SEO en Barcelona somos unos apasionados del posicionamiento web.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Royal Comunicaciónroyalcomunicacion.com HQ: Madrid, SpainReported employees: 51-200 | Madrid, Spain | 51-200 | Exact match | 85 contacts → |
“Royal Comunicación es una empresa dedicada al Marketing online teniendo como fin principal optimizar y rentabilizar los recursos de las empresas en la red.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Interamplifyinteramplify.com HQ: Alhama De Murcia, SpainReported employees: 51-200 | Alhama De Murcia, Spain | 51-200 | Exact match | 71 contacts → |
“Since 2012, at Interamplify, we have become strategic partners for brands and companies seeking to expand digitally on a global scale.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | seocom.agencyseocom.agency HQ: Barcelona, SpainReported employees: 11-50 | Barcelona, Spain | 11-50 | Exact match | 49 contacts → |
“Con más de 20 años de experiencia, ayudamos a las marcas a convertir el SEO en un canal de captación escalable, medible y alineado con sus objetivos de negocio.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | agenciaseo.euagenciaseo.eu HQ: Valencia, SpainReported employees: 11-50 | Valencia, Spain | 11-50 | Exact match | 38 contacts → |
“Esta empresa se creó para dar respuesta a una necesidad cada vez más demandada: el posicionamiento web.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Keyweokeyweo.com HQ: Barcelona, SpainReported employees: 11-50 | Barcelona, Spain | 11-50 | Exact match | 38 contacts → |
“Keyweo is a digital marketing agency founded in 2018 and based in Barcelona.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Idento Agencia DE Marketing Digitalidento.es HQ: Armilla, SpainReported employees: 11-50 | Armilla, Spain | 11-50 | Exact match | 37 contacts → |
“IDENTO - Diseño y Programación Web - Marketing Online, Posicionamiento en Buscadores, SEM, SEO, Redes Sociales, SMM, SMO, Email Marketing, Analítica Web, Google Analytics - Socio…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Acceseoacceseo.com HQ: Alcoy, SpainReported employees: 11-50 | Alcoy, Spain | 11-50 | Exact match | 31 contacts → |
“de páginas web accesibles.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Human Level Communicationshumanlevel.com HQ: Sant Joan D'alacant, SpainReported employees: 11-50 | Sant Joan D'alacant, Spain | 11-50 | Exact match | 31 contacts → |
“Since 2001, we've been boosting the online discoverability of leading international companies and media outlets.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Marketalia Marketing Onlinemarketalia.com HQ: Madrid, SpainReported employees: 11-50 | Madrid, Spain | 11-50 | Exact match | 31 contacts → |
“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 description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Jevnetjevnet.es HQ: Barcelona, SpainReported employees: 11-50 | Barcelona, Spain | 11-50 | Exact match | 30 contacts → |
“Online Marketing Agency leader in the management and optimization of SEM campaigns.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | boluda.comboluda.com HQ: Mataró, SpainReported employees: 1-10 | Mataró, Spain | 1-10 | Exact match | 25 contacts → |
“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 description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | SH Marketingsh.marketing HQ: Madrid, SpainReported employees: 11-50 | Madrid, Spain | 11-50 | Exact match | 24 contacts → |
“Sh Marketing está formado por un grupo de consultores de marketing digital con amplia experiencia en Search Marketing.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Convertixconvertix.net HQ: Madrid, SpainReported employees: 11-50 | Madrid, Spain | 11-50 | Exact match | 23 contacts → |
“Convertix is an International SEO & Performance Marketing Agency with offices in Madrid and Milan serving clients in 20+ markets and 10+ languages.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Nubeseonubeseo.es HQ: Marbella, SpainReported employees: 11-50 | Marbella, Spain | 11-50 | Exact match | 22 contacts → |
“Posicionamiento Web SEO, Marketing Online y diseño de páginas web en Marbella.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Liten Lemonlitenlemon.com HQ: Madrid, SpainReported employees: 1-10 | Madrid, Spain | 1-10 | Exact match | 21 contacts → |
“Liten Lemon es una agencia de marketing digital ubicada en Madrid, España.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Sembi Comunicaciónsembi.es HQ: Bilbao, SpainReported employees: 1-10 | Bilbao, Spain | 1-10 | Exact match | 20 contacts → |
“Sembi Communication is a Digital Marketing Agency experts in SEO (Search Engine Optimization),(Search Engine Marketing), Media Digital Content, Web Design, Community Manager &…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Coodexcoodex.es HQ: Alicante, SpainReported employees: 1-10 | Alicante, Spain | 1-10 | Exact match | 19 contacts → |
“Consultora de Marketing online, estrategias de marketing digital y posicionamiento web y marketing en buscadores.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Yoseo Marketingyoseomarketing.com HQ: Madrid, SpainReported employees: 11-50 | Madrid, Spain | 11-50 | Exact match | 19 contacts → |
“En YoSEOMarketing, somos la agencia líder en transformación digital, especializada en posicionamiento y resultados sostenibles.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Kdigitalk-digital.es HQ: Madrid, SpainReported employees: 11-50 | Madrid, Spain | 11-50 | Exact match | 17 contacts → |
“Trabajamos el Marketing 360º para ofrecer al cliente soluciones integrales para desarrollar su negocio.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Premium Leadspremiumleads.com HQ: A Coruña, SpainReported employees: 11-50 | A Coruña, Spain | 11-50 | Exact match | 17 contacts → |
“Premium Leads combines proprietary technologies developed in-house with extensive experience in online marketing and SEO strategies.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Ecoeurekaecoeureka.com HQ: Madrid, SpainReported employees: 11-50 | Madrid, Spain | 11-50 | Exact match | 17 contacts → |
“Agencia de Marketing Digital | Hacemos SEO, SEM, Diseño Web, Redes Sociales, Vídeo Marketing, Email Marketing y Mantenimiento de Sistemas.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Websdirectwebsdirect.es HQ: Madrid, SpainReported employees: 11-50 | Madrid, Spain | 11-50 | Exact match | 17 contacts → |
“Websdirect es una empresa que ofrece soluciones completas para internet desde 1998, nuestras oficinas se encuentra en Madrid, España.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Bring Connections Seo, Ppc, CRO & UX UI Designbringconnections.com HQ: Jerez De La Frontera, SpainReported employees: 11-50 | Jerez De La Frontera, Spain | 11-50 | Exact match | 16 contacts → |
“Somos Bring, tu agencia de Growth.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Seobideseobide.com HQ: Abadiño, SpainReported employees: 1-10 | Abadiño, Spain | 1-10 | Exact match | 16 contacts → |
“Somos 10 especialistas full stack SEO.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 1,246 company matches
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SEO firms: dataset insights
September 19, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
1,242 records in the displayed employee bands.
4 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 1,246 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 19, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
SEO firms by metro
Questions about this company list
What does Exact match mean for SEO firms?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many SEO firms did RevenueBase find based in Spain?
The saved snapshot records 1,246 matching company records, 4,854 tracked contacts and 638 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 19, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
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Cite this list
RevenueBase Data Team. Top 25 SEO firms based in Spain. Snapshot: September 19, 2026. https://revenuebase.ai/companies/seo-firms/spain.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗