Spain has a mature and increasingly international digital market, with major business hubs including Madrid, Barcelona, Valencia, Bilbao, and Alicante. Spanish companies compete not only for domestic customers but also across Europe and Latin America, making search visibility an important part of digital growth.
SEO in 2026 also extends beyond traditional keyword optimization. Technical performance, search intent, international targeting, useful content, structured data, and visibility across newer search experiences all require consideration. Google continues to emphasize strong SEO fundamentals for its generative AI search features rather than a separate set of “AI SEO” requirements.
Spain has produced a number of established SEO consultants and agencies with experience across technical SEO, international search, ecommerce, content, analytics, and digital growth. Below are 10 notable names and companies worth considering when researching an SEO partner in Spain.
How We Selected These SEO Experts
The list focuses on publicly verifiable professional experience, specialist expertise, industry contributions, established SEO services, and experience working with Spanish or international businesses.
The experts and agencies are not presented in a strict performance ranking. SEO results depend heavily on the website, industry, competition, technical environment, and business objectives, so businesses should evaluate each provider against their own requirements.
Top 10 SEO Experts and Agencies in Spain
| SEO Expert / Agency | Primary Expertise | Best For |
| Aleyda Solis / Orainti | International, technical, ecommerce and SaaS SEO | International and enterprise SEO |
| Romuald Fons / BigSEO | SEO strategy and digital growth | Spanish-speaking businesses and growth projects |
| MJ Cachón | SEO consulting and technical SEO | Technical SEO and professional training |
| Human Level | Technical, strategic and international SEO | Complex websites and established businesses |
| Flat 101 | SEO, UX, CRO and digital growth | Ecommerce and conversion-focused businesses |
| iSocialWeb | SEO and digital strategy | Competitive markets and organic growth |
| Wanatop | SEO and performance marketing | Integrated organic and paid campaigns |
| Internet República | SEO, content and digital marketing | Businesses seeking broader digital support |
| NeoAttack | SEO and digital marketing | SMEs and growing businesses |
| BigSEO | SEO strategy, technology and automation | Competitive Spanish-language markets |
1. Aleyda Solis
Aleyda Solis is one of Spain’s most internationally recognized SEO consultants. She specializes in international, ecommerce, marketplace, and SaaS SEO through her boutique consultancy, Orainti.
Her background includes work with European, American, and Latin American companies. She is also the founder of SEOFOMO and has spoken at more than 200 conferences across more than 30 countries.
Best for
International SEO, multilingual websites, ecommerce, SaaS, and complex enterprise projects.
2. Romuald Fons
Romuald Fons is a prominent figure in the Spanish-speaking SEO community and the founder of BigSEO. His work combines SEO with digital entrepreneurship and growth strategy.
Best for
Spanish-language markets, businesses looking for SEO-led growth, and entrepreneurs building organic search visibility.
3. MJ Cachón
MJ Cachón is a Spanish SEO professional known for her work in search optimization and her involvement in the SEO education and conference community.
Best for
Technical SEO projects, consulting, training, and businesses seeking specialist SEO knowledge.
4. Human Level
Human Level is an established Spanish SEO and digital marketing consultancy led by Fernando Maciá. Maciá says he began working in search engine optimization in 2001 and is among the early practitioners of SEO, online marketing, and web analytics in Spain.
Human Level provides SEO services covering technical problems, search visibility, and international markets, and has published numerous SEO books and educational resources.
Best for
Technical SEO, complex websites, ecommerce, and businesses requiring strategic SEO support.
5. Flat 101
Flat 101 is a Spanish digital consultancy combining SEO with UX, CRO, analytics, development, and broader digital optimization. Its current services include SEO and GEO alongside conversion and digital growth work.
The company also publishes research, case studies, and educational material covering SEO, ecommerce, analytics, and conversion optimization.
Best for
Ecommerce businesses and companies that want SEO integrated with UX, analytics, and conversion optimization.
6. iSocialWeb
iSocialWeb is a Spanish digital marketing agency focused on SEO and broader digital strategy. Its work is particularly relevant to companies competing in search-heavy markets where organic visibility is an important acquisition channel.
Best for
Competitive industries, organic growth campaigns, and businesses looking for an agency rather than an individual consultant.
7. Wanatop
Wanatop combines SEO with other digital marketing disciplines, including paid media and performance marketing.
Best for
Businesses that want SEO to work alongside paid search and broader performance campaigns.
8. Internet República
Internet República is an established Spanish digital agency offering SEO alongside analytics, content marketing, and other digital services.
Best for
SMEs and larger businesses that prefer working with a broader digital marketing agency.
9. NeoAttack
NeoAttack is a Madrid-based digital marketing agency offering SEO and related growth services. Its broader approach makes it an option for businesses that need SEO alongside other digital marketing activities.
Best for
SMEs and growing businesses looking for a full-service digital marketing partner.
10. BigSEO
BigSEO is a Spanish SEO agency associated with Romuald Fons and focused on organic growth, SEO strategy, technology, and automation.
Best for
Spanish-speaking businesses, competitive search markets, and companies looking for an agency with a strong SEO specialization.
For businesses specifically looking for an SEO agency, the right choice should depend on the website’s size, market, technical requirements, and growth objectives rather than simply the agency’s reputation.
What to Look for in an SEO Expert in Spain
The best SEO partner depends on your specific requirements. Before hiring someone, consider the following.
Relevant Experience
Look for experience with websites similar to yours in terms of industry, size, CMS, technical complexity, and target market.
Technical SEO Knowledge
A strong consultant should understand crawling, indexing, internal linking, redirects, canonicalization, structured data, JavaScript, site architecture, and performance.
International SEO Experience
If you target multiple countries, ask about international keyword research, localization, hreflang, country targeting, and managing multilingual websites.
Evidence of Results
Ask for relevant case studies and understand how results were measured. Organic traffic alone does not tell the whole story; qualified traffic, leads, revenue, and other business outcomes may be more useful.
Clear Communication
SEO recommendations often require developers, content teams, and marketing staff to work together. A consultant should be able to explain technical issues clearly and provide actionable priorities.
Ethical Practices
Avoid providers promising guaranteed Google rankings or relying on manipulative link-building tactics. Google’s spam policies apply to SEO practices as well as its newer AI-powered search experiences.
Conclusion
Spain has a strong pool of SEO professionals and agencies covering everything from technical and international SEO to ecommerce, content, UX, and digital growth.
The names in this guide provide a useful starting point, but there is no single SEO expert who is right for every business. A multinational ecommerce company may need international and technical expertise, while a local Spanish business may benefit more from local SEO and content strategy.
Before hiring an SEO partner, review relevant experience, case studies, communication processes, technical capabilities, and the way success will be measured. Choosing a provider based on your actual business requirements is more valuable than choosing one simply because they appear on a “top SEO experts” list.
Frequently Asked Questions
How much does SEO cost in Spain?
There is no standard price. Costs depend on the website’s size, competition, target markets, technical requirements, and whether you need an audit, project, or ongoing consultancy.
How long does SEO take to work?
There is no universal timeline. Technical fixes can sometimes produce relatively quick changes, while broader organic growth usually requires continued work and measurement.
Is international SEO important for Spanish businesses?
It can be especially valuable for businesses targeting Latin America, other European markets, or international customers. The strategy should account for language, country targeting, search behavior, and content localization.
Should I hire an SEO consultant or an agency?
A consultant can be a good choice when you need specialist expertise or strategic guidance. An agency may be more suitable when you need multiple SEO, content, development, or digital marketing capabilities.
Is technical SEO still important in 2026?
Yes. Crawling, indexing, site architecture, structured data, performance, and mobile implementation remain important parts of a technically sound website.
Can an SEO expert guarantee first-page rankings?
No. Rankings depend on Google’s systems, competitors, search intent, website quality, and many other variables. Be cautious of providers guaranteeing specific positions.
How should I measure SEO success?
Use business-relevant metrics such as qualified organic traffic, leads, sales, revenue, conversions, search visibility, and improvements in important technical areas.
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Sikandar Jamil, an SEO professional with over 5+ years of experience. I’m the founder of Search Engine Empires and a Co Founder Of Ceca Media und Marketing in Germany Deutschland. My Expertise is in Entity Based SEO, Building Topical Authority and Optimize Retrieving Costs for Search Engines to increase Search Engine Visibility, Improve Crawling and indexing and Also Proficient in implementing Programmatic SEO Strategies.
