Choosing an SEO agency is not easy. There are hundreds of companies offering search engine optimization in Spain, and many use similar words to describe their services.
One agency may focus on technical SEO. Another may specialize in ecommerce. A third may be better suited to international websites or large companies. Some agencies also combine SEO with paid advertising, conversion optimization, web development, content, or newer forms of optimization for AI search.
That makes the right choice depend on your website, goals, market, and budget.
In this guide, we review 10 SEO agencies in Spain, looking at the services they offer, their pricing information when published, and the type of business that may benefit most from working with them.
SEO also takes time. Google says some changes can take weeks or even months to show their full effect in search results, so businesses should be careful with anyone promising instant rankings.
If you are a small business or solo entrepreneur, you may also want to compare the cost of a traditional agency with hiring an individual SEO specialist for a specific task. For readers who want to test SEO without immediately committing to a large agency relationship, you can explore SEO freelancers and services on Fiverr.
Table of Contents
What Should You Look for in an SEO Agency?
SEO means search engine optimization — the process of making a website easier for search engines to understand while also making it more useful for the people who visit it.
Good SEO can involve many different jobs:
- A technical audit — looking for issues with crawling, indexing, site structure, page speed, redirects, internal links, and other technical elements
- Keyword research — finding the words and phrases potential customers use when searching
- Improving existing pages, creating new content, building relevant links
- Optimizing local business profiles or restructuring an ecommerce website
Google’s own SEO documentation emphasizes useful, unique, well-organized, people-first content rather than content created mainly to manipulate rankings. That’s important when comparing agencies.
Don’t just ask: “Which company will get me to number one?”
Instead, ask:
| Question |
|---|
| What problems will the agency solve? |
| What work will actually be completed each month? |
| Who will work on the account? |
| Will the agency make technical changes or only provide recommendations? |
| How will progress be measured? |
| Does the agency understand your industry / type of website? |
| Does the proposed work match your budget? |
| How long does the agency expect the strategy to run? |
| What happens if priorities change? |
The agencies below aren’t ranked by a universal measure of “best.” They represent different strengths and approaches in the Spanish SEO market.
The 10 Agencies
1. Dobuss
A Spanish digital marketing agency with a broad SEO offering: audits, keyword research, on-page SEO, SEO migration, off-page SEO, local SEO, international SEO, ecommerce SEO, link building, conversion optimization, and SEO for AI.
- Works with SMEs as well as larger companies, adapting strategy to resources and objectives
- Notable migration SEO service — covers pre- and post-launch work using tools like Ahrefs, Semrush, and Google Search Console
- Dedicated local SEO service covering profile management, reputation management, analytics, and reporting
Pricing: Not published on the main SEO page — request a proposal.
Best for: Broad SEO programs — ecommerce, local businesses, larger websites, and companies needing technical or migration support.
💡 Check exactly which activities are included in the proposal. A broad service list matters less than the actual scope of monthly work.
2. La Teva Web
A Barcelona-based agency combining SEO with web design, development, and digital marketing — useful when a website needs structural work, not just recommendations.
- Publishes case studies showing SEO work alongside redesigns (service pages, metadata, titles, content, ongoing monitoring)
- Discusses the relationship between traditional SEO and GEO (visibility in AI-generated search results)
- Openly explains the agency-vs-freelancer cost trade-off: agencies can cost more due to larger structure and broader implementation capability
Pricing: No single standard SEO price; depends on project scope. Some specific digital services/programs have published prices, but these shouldn’t be confused with a full ongoing SEO campaign.
Best for: Businesses wanting SEO closely integrated with web design, development, and broader digital marketing.
3. agenciaSEO.eu
A dedicated SEO specialist emphasizing customized strategy over standard packages.
- Explicitly distinguishes budgets/approaches for corporate sites, ecommerce, and local businesses
- Treats SEO as an ongoing process, not a one- or two-month project — proposals consider a minimum 6-month period
Pricing: No fixed monthly price published; proposals are adapted to the business.
Best for: Companies wanting a dedicated SEO agency with a customized (not generic) strategy.
💡 When requesting a proposal, ask for exact deliverables — a customized quote is only useful if you can see what you’re buying.
4. BIGSEO
One of the better-known names in Spanish SEO and digital marketing.
- Services include technical optimization, keyword research, site structure, reporting, plus web development and SEM
- Clear explanation of link building as a strategy for strengthening domain authority when on-page work isn’t enough
- Publicly warns against extremely cheap SEO, arguing serious SEO needs ongoing work, communication, strategy, and resources
Pricing: No fixed price — depends on project needs; customized proposal provided.
Best for: Businesses wanting a broader SEO + digital marketing partner (web development, paid search, etc. included).
💡 Define your primary objective first — traffic, leads, ecommerce sales, international growth, and brand visibility require different strategies.
5. Eskimoz
A digital marketing agency with a strong SEO focus and wider service range.
- Frames SEO cost as dependent on business type, website size, competition, objectives, and current site condition
- Publishes a useful reference point: a typical SME may invest around €15,000/year in SEO; larger companies can have significantly higher monthly budgets
- Broader digital marketing service (SEO + SEM + social + email + inbound + content) recommended around €4,000–5,000/month — this is not the price of SEO alone
Pricing: No universal SEO-only package; reference figures published as noted above.
Best for: SMEs and larger organizations wanting SEO as part of a broader digital marketing strategy, with a meaningful budget.
6. Human Level
A long-standing SEO specialist with a strong focus on training and technical/international search optimization.
- International SEO: keyword research, indexability analysis, information architecture, multilingual/multi-region strategy, content, authority, monitoring, reporting
- 20+ years working on international positioning projects; process includes briefing, audit, strategic plan, continuous improvement, and internal team training
- Dedicated local SEO service: Google Business Profile optimization, Maps visibility, reputation work
Pricing: No universal monthly price; depends on service and project.
Best for: Businesses needing local SEO, international SEO, technical guidance, or in-house SEO training alongside implementation.
💡 For international projects, ask specifically how the agency handles languages, country targeting, hreflang, local keyword research, and content localization.
7. Softalian
softalian.com — Most transparent published pricing on this list
- SEO audit available standalone or as part of a program — covers technical issues, internal linking, HTML structure, titles, headings, metadata, penalties, keyword opportunities, content strategy, backlinks, link-building opportunities
Published pricing:
| Service | Price |
|---|---|
| Complete SEO audit | €900 |
| Exhaustive SEO audit (larger/complex sites) | €1,500 |
| Basic 12-month SEO solution | From €5,000 |
| Advanced 12-month SEO solution | From €18,000 |
- Also offers local SEO (Google Maps, Google Places, Google Business Profile, on-page optimization, link building)
Best for: Businesses that value transparent pricing examples and want options ranging from a standalone audit to a longer program.
💡 If you already have an internal marketing team, buying an audit first can be a practical way to identify problems before committing to a larger campaign.
8. Adrenalina
A Barcelona-based SEO and web development agency with a long history in the sector.
- Works with both service businesses and ecommerce
- Services: SEO, SEM, technical SEO audits, migrations, reputation management, web design, social media, consulting, lead-gen content
- 18+ years of experience; works with businesses in Spain and Latin America; offices in Barcelona and Madrid
Pricing: No standard price published — request a customized proposal.
Best for: Companies needing SEO combined with web development, technical consulting, content, or broader digital marketing.
💡 Ask whether implementation is included — a recommendation is not the same as the agency making the actual changes.
9. SEO Alive
An international SEO agency headquartered in Andorra, focused on large-scale and international projects.
- Services: technical SEO, international SEO, content marketing, link building, local SEO, keyword research, audits, enterprise SEO, and GEO (generative AI search visibility)
- Publishes a case study claiming it helped Chess.com grow from ~1 million to 30+ million organic visits/month (2019 → 2024) — an agency-published claim, not an independently audited figure
Pricing: No universal price published; invites businesses to request a diagnosis/strategy discussion.
Best for: International companies, SaaS businesses, ecommerce companies, and larger websites needing scalable SEO.
💡 Ask for the expected team structure — enterprise SEO often involves specialists across technical, content, digital PR, analytics, and development.
10. iSocialWeb
A Spanish digital marketing agency with a strong SEO and organic-traffic focus.
- 10+ years of experience; team of 30+ professionals; offers SEO, CRO, PPC, analytics, development, content
- Claims 300+ clients including Desigual, Intersport, HubSpot, TradeInn, Abacus, Foot District, Ahrefs, and Unicaja
- Self-reported figures: €400M+ in additional client revenue, 1B+ annual visits managed (unaudited, agency-published claims)
- Combines SEO with CRO (conversion rate optimization) — more traffic isn’t useful if visitors don’t convert
Pricing: No standard package price — request a customized proposal.
Best for: Established businesses, ecommerce companies, and brands wanting SEO connected to CRO, analytics, PPC, and content.
How Much Does SEO Cost in Spain?
There is no single price for SEO. A local business with a 10-page website doesn’t need the same work as a multinational ecommerce site with 100,000 URLs.
| Project type | Typical needs |
|---|---|
| Small local business | Keyword research, Google Business Profile, service-page improvements, local content, citations, reviews, light authority building |
| Large/enterprise site | Technical SEO at scale, international targeting, JavaScript SEO, automated internal linking, content production, digital PR, log-file analysis, migration support, continuous testing |
Reference points from the agencies above:
- Softalian: €900–1,500 for audits; €5,000–18,000 for 12-month programs
- Eskimoz: ~€15,000/year typical for an SME; larger companies have larger monthly budgets
- La Teva Web: budgets depend on website, industry, geographic market, and agreed tasks
Don’t compare proposals by price alone — compare the work. A €1,000/month proposal with a technical audit, keyword strategy, four content pieces, and implementation may offer more real value than a cheaper one that only sends recommendations.
What Should an SEO Proposal Include?
- Technical SEO — crawling, indexing, architecture, speed, redirects, canonical URLs, structured data
- Keyword research — which topics matter and why
- Content — how many pages/articles, and who writes them
- On-page SEO — titles, headings, content, internal links, images, intent, structure
- Off-page SEO — link building and digital PR
- Local SEO — Google Business Profile, local landing pages, reviews, local links
- Reporting — not just ranking changes, but what was done and what’s next
- Implementation — does the agency actually make changes, or only recommend them?
How Long Does SEO Take?
Google says some changes can appear within hours, while others take several months — and recommends allowing a few weeks before evaluating impact.
- A new domain with little authority may take longer than an established site with strong content and links
- Fixing technical problems can show relatively quick wins; competitive commercial keywords take much longer
- Be cautious of any agency guaranteeing a specific Google position by a specific date
A more useful framework is milestones, e.g.:
- Month 1 — technical audit and keyword research
- Month 2 — technical fixes and priority page optimization
- Month 3 — content and authority work
- Month 4+ — expansion, testing, and refinement
Agency SEO vs. Freelancer SEO
An agency usually makes more sense when you need several skill sets at once: technical SEO, content writing, link building, web development, analytics, CRO, international SEO.
A freelancer may be better for one specific task: an audit (if you already have a developer/writer), a keyword strategy for a new site, or optimizing an existing set of articles.
Budget matters too — La Teva Web itself notes that agency work can cost more than independent consulting due to greater structural costs and broader implementation capability. The right choice depends on the work required, not on which option simply sounds more professional.
Want a Lower-Cost, Faster Alternative to a Full Agency?
If you’re a blogger, affiliate marketer, small business owner, startup, freelancer, or ecommerce seller, a full agency relationship may be more than you need. Starting with one focused task can be more practical:
- Keyword research
- SEO audit
- Competitor research
- On-page SEO
- Blog content
- Link building
- Local SEO
- Technical SEO
- Ecommerce SEO
- Monthly SEO management
Instead of committing to a long agency contract, you can compare individual freelancers on a marketplace like Fiverr and choose the specific help you need.
If you need a complete strategy for a large ecommerce company, don’t assume the cheapest gig replaces an experienced agency team — but for a focused task, a freelancer can be a practical starting point (e.g., an audit that your own developer then implements).
Related guides for smaller budgets:
- 10 Best Monthly SEO Services on Fiverr Starting at $50
- 8 Best SEO Agencies on Fiverr Starting at $100
As always, check the gig description, seller history, deliverables, and communication before ordering — don’t buy on headline price alone.
How to Choose the Right Agency From This List
| If you need… | Consider… |
|---|---|
| Broad SEO and ecommerce support | Dobuss |
| SEO combined with web design and development | La Teva Web or Adrenalina |
| A dedicated, SEO-only agency | agenciaSEO.eu |
| SEO plus broader digital marketing | BIGSEO or Eskimoz |
| International SEO or training | Human Level |
| Published, transparent pricing | Softalian |
| Enterprise or international SEO | SEO Alive |
| SEO connected to CRO and analytics | iSocialWeb |
The next step is requesting two or three proposals — with a useful brief, not a vague question. Give agencies:
- Your website URL
- Your main products or services
- Your target country/countries
- Your main competitors
- Your current organic traffic, if known
- Your most important business goals
- Whether you have an internal developer
- Whether you already produce content
- Whether you need local, national, or international SEO
- Your approximate budget range
Questions to Ask Before Hiring an SEO Agency
Will you guarantee first-page rankings?
Be careful with guarantees — Google itself says there’s no secret trick that automatically places a site first. A professional agency should explain its strategy without promising a guaranteed position.
How much does SEO cost per month?
Ask for the actual price and the complete scope. A low price may cover very little work; a higher price may be reasonable if it includes strategy, implementation, content, technical work, reporting, and authority building.
How long should I hire an SEO agency?
There’s no universal answer, but SEO is usually longer-term, especially in competitive markets (agenciaSEO.eu, for example, frames it as a 6-month-minimum process). Agree on milestones rather than an indefinite contract.
Do I need SEO if my website already ranks?
Possibly — competitors publish new content, search behavior changes, and Google’s systems evolve. SEO is often about maintaining and expanding visibility, not reaching a position once.
Should I hire an agency or a freelancer?
Use an agency for multiple skills or significant implementation support. Use a freelancer for a focused task or if you already have a strong internal team.
Can an agency fix technical SEO problems?
Many can — but ask precisely what “technical SEO” means in the proposal: Does it only identify problems? Provide instructions? Work directly with your developer? Implement changes itself?
Does SEO still matter with AI search?
Yes — the environment is changing, and several agencies above (SEO Alive, Dobuss, iSocialWeb) now discuss GEO or AI search visibility explicitly. Google’s guidance still emphasizes useful, understandable, unique, reliable, people-first content — so the fundamentals don’t disappear with AI search.
What should I measure?
Not just rankings. Useful metrics include: organic clicks, qualified organic traffic, leads, ecommerce revenue, conversion rate, keyword visibility, indexed pages, organic impressions, non-brand traffic, and organic revenue. The right metric depends on the business — a local plumber cares about qualified calls; an ecommerce company cares about organic revenue; a SaaS company cares about qualified trials and leads.
Final Verdict
The best SEO agency in Spain isn’t necessarily the one with the biggest team, the longest service list, or the most impressive website — it’s the agency whose skills match your actual problem.
- Dobuss — broad SEO, ecommerce, local, international, and migration work
- La Teva Web — SEO and web development working together
- agenciaSEO.eu — customized SEO strategies
- BIGSEO — SEO alongside wider digital marketing and web services
- Eskimoz — SEO as part of a larger digital marketing investment
- Human Level — local, international, technical, and training-oriented SEO
- Softalian — publicly stated prices for audits and SEO solutions
- Adrenalina — SEO combined with web development and digital marketing
- SEO Alive — international, enterprise, SaaS, ecommerce, and AI-search projects
- iSocialWeb — SEO combined with CRO, analytics, PPC, content, and development
Before hiring anyone: ask what will be done, who will do it, how it will be measured, what you’re expected to provide, and how the strategy will change if the data shows the original plan isn’t working.
SEO can be a valuable long-term investment, but the right agency depends on your business size, website, market, competition, and goals. For a large or complex website, a full-service agency can provide the people and technical skills required. For a smaller site, starting with a focused SEO task or freelance specialist may be more practical. The important thing is to buy the level of SEO help your business actually needs.
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