In a hurry? Jump straight to the ranking results ↓
Ranking a website on Google is a lot like deep-sea fishing. From the harbor, the sea looks the same everywhere: water, horizon and the promise that there’s something to catch down there. But anyone who really knows how to fish will tell you the ocean has fishing grounds, currents, tides and seasons, and that casting your line in the wrong spot is the surest way to come home with an empty hold. You don’t catch a haul by luck or by throwing the net at random. You catch it by reading the water, with the right bait, with patience and, above all, with a good skipper at the helm.
That’s where the problem starts. Your boss asked you for a list of the best SEO agencies in Spain and, when you search, Google hands you twenty different rankings, each one crowning a different skipper as the best on the dock. The sea is the same, but every list swears it has the best crew. Who do you listen to? Because in web positioning choosing badly isn’t a minor detail: it’s setting sail with the wrong boat and realizing it out in open water, once you’ve been sailing for months and the budget has gone up in fuel. Hiring a good SEO company can be the difference between a brand that fills its hold and one that spends the whole season staring at the water.
And the Spanish fishing ground is very crowded. Spain is one of the most mature SEO markets in the Spanish-speaking world: there are agencies in Madrid, Barcelona, Valencia, Granada, Seville, Alicante and half a dozen other ports fighting over the same keywords, each with its own specialty, size and way of working. Telling the skipper who truly knows the sea from the one who just has a pretty boat at the dock isn’t a job for an afternoon of searches, especially when every website introduces itself as number one at the market.
That’s why we built this ranking differently. No favors, no “friends of the harbor”: concrete, verifiable data, processed with scripts. We measured real Google positions for the industry keywords, Google Business Profile reputation, presence in ChatGPT, domain authority, organic traffic and the strength of each social community. Then a scoring engine did the dirty work, with no one’s personal taste getting in the way. It’s the difference between fishing by eye, watching the sky, and fishing with a depth sounder and a nautical chart.
The result? An honest snapshot of which agencies are best prepared to fill your project’s hold in the sea of Spanish SEO. Get comfortable, check the tackle and keep reading: here’s the Top 10.
Interactive ranking of the best SEO companies in Spain
 |
 Agency |
 Total score |
 Rank “seo agency” |
Rank “web positioning agency” |
Rank “seo company” |
ChatGPT position |
 Google Business Profile rating |
Local Guides reviews |
New profile reviews |
Google Business Profile score |
Domain Rating |
 Backlinks |
 Keywords |
 Traffic |
 LinkedIn engagement |
LinkedIn (Followers) |
 Instagram engagement |
Instagram (Followers) |
 TikTok (Followers) |
 Twitter (Followers) |
 YouTube (Subscribers) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Agencia SEO (.eu) | 68.17 | 2 | 5 | 2 | 4.8 | 9 | 19 | 12.89 | 45 | 3200 | 910 | 8473 | 0.26 | 5568 | 5.08 | 684 | 657 | 1140 | ||
| 2 | Impacto SEO | 53.46 | 10 | 8 | 5 | 13 | 32 | 19.56 | 66 | 29569 | 97 | 562 | 0.088 | 1695 | 2.228 | 202 | |||||
| 3 | Dobuss | 52.69 | 8 | 3 | 4.9 | 2 | 6 | 2.22 | 44 | 18436 | 1366 | 7991 | 0.504 | 6331 | 1.586 | 3374 | 91 | ||||
| 4 | Orbitalia | 51.88 | 5 | 19 | 9 | 4.7 | 13 | 32 | 15.55 | 31 | 9107 | 59 | 1626 | 430 | 31.844 | 97 | 6 | 5 | |||
| 5 | BigSEO | 51.51 | 9 | 7 | 15 | 4.5 | 3 | 5 | 3.56 | 59 | 108497 | 474 | 11865 | 0.302 | 32882 | 4518 | 220000 | ||||
| 6 | SEDigital | 50.51 | 7 | 16 | 6 | 4.7 | 13 | 32 | 16.89 | 31 | 1836 | 113 | 1633 | 1.541 | 793 | ||||||
| 7 | Idento | 48.09 | 21 | 18 | 20 | 4.9 | 6 | 2 | 7.55 | 63 | 20565 | 759 | 2907 | 0.29 | 3790 | 2.07 | 1228 | 1637 | 120 | ||
| 8 | Softalian | 47.75 | 1 | 6 | 5 | 10 | 35 | 16.45 | 25 | 1436 | 83 | 4779 | 575 | 210 | |||||||
| 9 | Sayonara | 45.59 | 16 | 10 | 18 | 3.9 | 7 | 19 | 6.66 | 63 | 32043 | 245 | 2173 | 0.161 | 3471 | 0.57 | 1447 | 743 | 6 | ||
| 10 | SEO Madrid | 37.17 | 19 | 27 | 29 | 4.9 | 13 | 32 | 18.22 | 38 | 8751 | 33 | 583 | 252 | 0.391 | 384 | 115 | ||||
| 11 | SEO in House | 35.06 | 22 | 19 | 4.1 | 8 | 20 | 8 | 26 | 2169 | 186 | 740 | 0.359 | 334 | 3.146 | 1078 | 1257 | ||||
| 12 | Estudio34 | 30.02 | 26 | 4.8 | 6 | 15 | 9.78 | 30 | 4073 | 115 | 362 | 3126 | 1.836 | 690 | 626 | 72 | |||||
| 13 | Posición Web | 29.25 | 14 | 4 | 5 | 2 | 6 | 3.56 | 10 | 3494 | 190 | 1352 | 3 | 1.16 | 79 | 70 | |||||
| 14 | Difuso | 25.35 | 27 | 5 | 4 | 12 | 6.66 | 17 | 5330 | 64 | 351 | 0.647 | 201 | 3.175 | 84 | 7 | |||||
| 15 | Nireweb | 24 | 28 | 5 | 8 | 21 | 12.45 | 22 | 306 | 14 | 65 | 0.464 | 1422 | 1.354 | 726 |
Best SEO Agencies in Spain: our analysis
To deliver verifiable, accurate results we didn’t rely on a rule of thumb, we played it safe with data and scripts. We combined six big factors for every agency, the way you’d check that the sounder, the chart and the tackle are all in order before casting off:
- Search positioning: the real organic Google position for the three key industry keywords, seo agency, web positioning agency and seo company, . It’s the heart of the ranking: in SEO, whoever masters their own fishing ground proves they know how to read the water.
- Google Business Profile reputation: rating and review volume from the Google Business Profile, with an index that rewards agencies with genuine reviews (and gives Local Guides double weight).
- AI presence: who ChatGPT names when you ask it for the best agencies in the country, a new terrain that’s already starting to move the needle.
- Authority and traffic: Domain Rating, backlinks, ranked keywords and organic traffic (Ahrefs data).
- Social media: followers and, above all, real engagement measured on recent posts (Instagram and LinkedIn matter more than an inflated follower count).
If you want the fine print on how we assign each point, it’s all open in our research methodology behind the ranking.
For readers who want to go deeper into the field, this guide on SEO offers useful background.
No company pays to appear in this ranking or can influence its position. We don’t know the participants, and each one’s score is determined exclusively by data collected through research scripts, with the full methodology published and open to review.
If you have any comments on our methodology or suggestions to improve it, you can leave us a message and we’ll gladly get back to you.
Top 10 best SEO Agencies in Spain
1. Agencia SEO (.eu)
First place goes to agenciaSEO.eu, which defines itself with a phrase that sums up its character: “the first web positioning agency with no fear of heights.” Born as one of the best SEO agencies in Valencia and with a physical presence in Madrid too, it now serves companies across Spain, and what puts it at the top isn’t a single factor but the balance: strong positioning of its own, solid authority and an active social community that back it up equally.
Its hold is well stocked: SEO audit, migrations, local SEO, link building, SEO analysis, content marketing, consulting, penalty recovery, international SEO and dedicated e-commerce work. On top of that comes a full range of digital marketing, PPC campaigns (Google Ads, Facebook Ads, Google Shopping, LinkedIn and Twitter Ads), web analytics, marketing automation, email marketing and AI applied to every process, . It claims to have raised clients’ organic traffic by 80% on average and that more than 90% stay on after the first contract. When you want a skipper who already knows every current in the fishing ground, it’s a bet with real backbone.
2. Impacto SEO
Second place goes to Impacto SEO, a Madrid-based agency that introduces itself with humor and no hang-ups: “the best SEO agency in Spain… probably!”. Behind the joke there’s a serious track record: more than 8 years taking clients to the top of Google, with cases of up to 300% organic-traffic growth in competitive sectors and more than 70 SEO projects positioned. Its Google reputation, where it sports a flawless rating, is the best in the whole Top 10.
Its proposal goes straight to the point and shuns fluff: content SEO (architecture and optimized copywriting), technical SEO (Core Web Vitals, indexing, internal linking), link building with quality backlinks and toxic-link disavowal, and web analytics with clear monthly reports. It segments its service by size (freelancers, SMEs, large companies), by scope (local, national, international) and by platform (WordPress, PrestaShop, Shopify, WooCommerce), and rounds out the offering with SEM, web development and GEO. For anyone who wants measurable results “with no nonsense,” Impacto fishes with a firm net.
3. Dobuss
In third place comes Dobuss, and it does so with one of the largest crews in the ranking: it’s a digital marketing agency that works SEO through real specialization by area, with independent experts in each discipline and a Project Manager as a direct point of contact for every client. That structure, together with a review volume and authority well above average, is what drives it so high.
Its service menu is almost a complete fishing bank: SEO positioning and GEO, audit, link building, 360º paid media (Google Ads, social ads and programmatic advertising), social media and online reputation, AI and marketing automation, branding and web design, e-commerce and software development, marketplaces (Amazon), communication and digital PR, B2B and industrial strategy, and advanced analytics with CRO. It works with established brands and complex projects, leaning on AI as a reinforcement of expert judgment. For businesses that need a large agency able to cover every front at once, Dobuss sets sail with a deep-sea vessel.
4. Orbitalia
Fourth place goes to Orbitalia, a Barcelona SEO agency with more than 20 years of experience (“we’ve been doing SEO since day one, since Google appeared”) and a small, highly motivated team specialized in positioning and SEM. Its pitch is direct and free of frills: “no excuses, no lock-ins, no tall tales,” with open plans that only endure through results.
Its work covers SEO audit (technical, keyword research, strategy), on-page SEO (optimization, content, CRO, WPO), off-page SEO (backlinks, link building, reputation) and specialties like local, international and e-commerce SEO. It has also sailed deep into the new waters of GEO / AEO, with services designed to position the brand on ChatGPT, Gemini, Perplexity and Google’s AI Overviews. It rounds out the proposal with online advertising campaigns on Google, Facebook and Instagram Ads, and with web design and development. Its big signature is social engagement: the highest in the Top 10. For anyone who wants a local skipper who knows the port of Barcelona and already sails the sea of AIs, Orbitalia drops anchor with judgment.
5. BigSEO
Mid-table stands BigSEO, based in Barcelona and with muscle hard to match: it’s the agency with the most authority, the most backlinks and the most traffic in the whole ranking, and it also has the largest social community. In practice, it’s the fleet’s big trawler: high volume, wide reach and a battery of success cases it shows off without shyness.
Its approach is that of a ROI-driven digital marketing agency, with SEO (audit, strategy, keyword research, architecture and technical SEO), paid media (Google, Facebook, YouTube and Instagram Ads, remarketing), inbound marketing, CRO (A/B testing, landing pages, sales copy) and digital-business consulting. It was among the first to open the SEO in LLMs line to position brands inside generative engines. It also adds a powerful training arm with its own SEO, AI and digital marketing master’s programs, and showcases cases like Typeform, Enrique Tomás and Sports Law Institute. For anyone after trawling capacity and results at scale, BigSEO fills the hold.
6. SEDigital
Sixth place goes to SeDigital, a Madrid-based SEO agency with a very clear philosophy: “a visible company is a guarantee of success.” Its great virtue is the strength of its local reputation, it piles up one of the highest review volumes in the ranking, and an approach entirely oriented to the client’s goal: position the site and turn visits into calls and sales.
It works SEO positioning with ethical, lasting techniques, SEO for AI (optimizing content and authority so ChatGPT, Gemini or Perplexity recommend the brand), SEM (Google campaigns minimizing costs and measuring real leads), local SEO to appear on Google Business Profile, and social media management. It’s a Google Partner, offers a free web audit and works with no lock-in period, leaning heavily on personalizing each strategy and on the site’s user experience. For SMEs that want a close-knit team and results that hold over time, SeDigital sails a steady course.
7. Idento
Seventh place goes to Idento, an online marketing agency headquartered in Granada and present in Málaga, Madrid and Barcelona, working since 2006 with more than 20 years of track record, over 800 projects managed and more than 30 professionals organized into PPC, SEO, analytics and web development teams. Its banner is technique: proven criteria, advanced measurement and a framework it claims is reliable and transparent.
Its work combines SEO / GEO / AEO positioning (technical, content and architecture optimization, also for generative engines), Google Ads and all of paid advertising, including Microsoft Advertising, social ads, Amazon Ads and more,, data and analytics with proprietary measurement technology, AI and automation, web design and e-commerce built for performance, UI/UX/CRO consulting and a powerful training arm (a digital marketing master’s, FUNDAE courses). In 2025 it reports having managed over 12 million euros in ad spend. For companies that value technical rigor and measurement over smoke, Idento is a meticulous skipper.
8. Softalian
Softalian takes eighth place and arrives with a credential hard to match: it has worked web positioning since 2003, which adds up to more than 23 years of experience, with over 900 clients and 500 of its own portals ranked on Google. It’s the agency that ranks best for the sector’s main keyword, the best “number one” of its own fishing ground,, based in Valencia and serving all of Spain.
Its signature is risk-free natural SEO: White Hat strategies that avoid penalties, backed by its own network of portals, on which it constantly measures and tests every change in Google’s algorithm. It offers web positioning, link building (one of the three pillars its method rests on, alongside on-page SEO and user response), SEO consulting, audit, local SEO, penalty recovery and solid, responsive web design always geared toward search engines. It presents a senior team by name, led by its CEO and SEO director. For anyone who prioritizes accumulated experience and safety against penalties, Softalian fishes with a proven net.
9. Sayonara
In ninth place comes Sayonara Marketing Digital, based in Jerez de la Frontera and running since 2016. Its name, taken from Terminator’s “Sayonara, baby,” sums up its attitude: saying goodbye to empty promises and focusing on one thing, profitability. Its domain authority and community keep it among the top ten.
It’s a generalist agency working with SMEs and large companies, in Spain and abroad, with a step-by-step method of its own and monthly follow-up: it gets to know the business, audits the digital presence, designs a realistic strategy, executes and reports every month. Its repertoire includes web design and online stores, social media management, SEO positioning, PPC, GEO, SEM, email marketing, training and AI marketing. What sets it apart is a discourse of radical transparency: “we tell you what other agencies don’t,” with no tales about the algorithm. For anyone tired of frills who wants measurable results, Sayonara fishes with no smoke in the net.
10. SEO Madrid
The extended podium is closed by SEO Madrid, one of the most veteran crews on the dock: it has been implementing SEO strategies since 2007 and started out in online marketing back in 1998. It defines itself as a multidisciplinary team of experts in web positioning, design and programming, with a solid local reputation that keeps it among the top ten.
Its work combines SEO positioning for websites and e-commerce (local and international), Google penalty recovery, one of its declared specialties,, SEM campaigns focused on CTR and Quality Score, custom and WordPress web design, online stores on PrestaShop and WooCommerce, community management, Growth Hacking, graphic and editorial design, and even its own SEO-optimized hosting. It boasts a very personal methodology developed by studying Google’s algorithms and working “100% White Hat.” For SMEs looking for an old-school skipper specialized in recovering penalized sites, SEO Madrid knows the currents well.
The skipper your brand needs
Fishing the sea of Google isn’t a matter of luck or of having the most expensive boat: it’s a matter of method, patience and, above all, who you trust with the helm. We’ve just given you ten names that didn’t come out of a hat or a favor, but out of hard data, measured and compared with the same yardstick for everyone. That’s the difference between a real ranking and a list of friends of the harbor.
Now the next voyage is yours. You already know who has the track record, who masters the new fishing ground of the AIs, who has the most trawling capacity and who best knows the local currents. All that’s left is to pick the right skipper and cast off. Whether with an organic positioning strategy that fills the hold over time or a digital advertising campaign that gives you a catch from day one, the best agency is the one that reads the sea with you, not the one that leaves you alone in open water.
Looking for more information on service providers in Spain? Explore all our rankings or contact us to suggest a sector for our next study.
Do you know another agency that should be on the list and isn’t? Tell us in the comments, this ranking gets updated, and so does the data.
About MKTONS
MKTONS is an independent research platform that produces objective rankings of professional service providers.
Each ranking is built on verifiable data and a public methodology: search engine positioning, online reputation, domain authority, presence in artificial intelligence responses, and social media activity. We don’t know the participants, and we don’t charge for taking part.
Our goal is to provide a neutral, up-to-date source that helps businesses and professionals make better decisions when choosing a service provider.
