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Online advertising works like a silent auction. Every time someone types something into Google, an instant bidding war plays out behind the scenes, it lasts milliseconds, for the right to appear in front of that person. And here’s the beautiful part: it isn’t won by whoever shouts loudest nor, contrary to what many people believe, by whoever puts the most money on the table. It’s won by whoever makes the most relevant bid at the right moment. A good ad, cheap and well aimed, can leapfrog a wildly expensive one that’s talking to the wrong person. That’s the whole science and art of SEM: bidding smart in an auction you can’t see, but that decides who gets the customer.
That’s where your problem starts. Your boss asked you for a list of the best online advertising agencies in Spain and, when you search, Google hands you twenty different rankings, each one crowning a different winner. Every one swears it holds the winning hand, every one promises the perfect click at the perfect price. Who do you listen to? Because in this auction choosing badly isn’t a minor detail: it’s burning your budget on bids that talk to no one while your competition walks off, cheaply, with the very customer you were after. Hiring the wrong agency is like sitting down to bid without understanding the rules of the room.
And the Spanish room is very full. Spain is one of the most mature digital marketing markets in the Spanish-speaking world: there are agencies in Madrid, Barcelona, Valencia, Seville, Jerez, Ponferrada and half a dozen other places fighting over the same keywords, each with its own specialty, size and way of bidding. Telling the agency that truly knows how to read the auction from the one that just has a nice sign on the door isn’t a job for an afternoon of searches, especially when every website introduces itself as number one in the sector.
That’s why we built this ranking differently. No favors, no friends: 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 bidding blind, glancing sideways at what the next person does, and bidding with the numbers in front of you.
The result? An honest snapshot of which agencies are best prepared to win your auction, the one for your customers, before anyone else. Get comfortable, check the cards and keep reading: here’s the Top 10.
Interactive ranking of the best Online Advertising companies in Spain
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 Agency |
 Total score |
 Rank “sem agency” |
Rank “online advertising agency” |
Rank “ppc agency” |
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 | Cyberclick | 58.1 | 8 | 4.3 | 5 | 3 | 13.43 | 72 | 25353 | 7108 | 46333 | 0.034 | 22705 | 0.1 | 15591 | 33000 | 8317 | 413000 | |||
| 2 | BigSEO | 55.68 | 2 | 4.5 | 3 | 5 | 10.21 | 59 | 108497 | 474 | 11865 | 0.302 | 32882 | 4518 | 220000 | ||||||
| 3 | Prismalia | 51.24 | 7 | 4.8 | 2 | 6 | 11.61 | 59 | 3531 | 655 | 5714 | 0.462 | 2249 | 0.713 | 1321 | 1083 | |||||
| 4 | Agencia Nous | 47.48 | 5 | 2 | 4.8 | 4 | 4 | 15.15 | 44 | 10376 | 77 | 969 | |||||||||
| 5 | WAKA | 44.03 | 18 | 4.9 | 3 | 5 | 11.92 | 54 | 8954 | 575 | 3644 | 1.037 | 2796 | 1.342 | 4682 | ||||||
| 6 | Bastida Farina | 38.6 | 15 | 7 | 4.8 | 2 | 6 | 9.9 | 30 | 3643 | 276 | 1101 | 0.005 | 22666 | 0.346 | 1664 | 78 | 107 | |||
| 7 | Digital Menta | 36.34 | 13 | 5 | 1 | 2.22 | 39 | 4468 | 286 | 1403 | 0.068 | 23635 | 2.392 | 2829 | 1403 | ||||||
| 8 | agenciaSEM.eu | 36.22 | 4 | 16 | 5 | 2 | 1 | 7.27 | 22 | 393 | 51 | 630 | 1.873 | 566 | |||||||
| 9 | SEM Manager | 34.89 | 6 | 5 | 3 | 5 | 15.35 | 2.8 | 297 | 31 | 929 | 167 | |||||||||
| 10 | Bilnea | 33.75 | 19 | 4.9 | 3 | 5 | 13.64 | 39 | 630607 | 183 | 851 | 1.126 | 1206 | ||||||||
| 11 | BierzoSEO | 27.85 | 10 | 4.7 | 2 | 6 | 8.18 | 27 | 1287 | 192 | 844 | ||||||||||
| 12 | Mar SEO Agency | 25.4 | 11 | 4.9 | 8 | 6.67 | 45 | 22807 | 46 | 158 | |||||||||||
| 13 | Crear Digital | 25.23 | 17 | 28 | 2 | 1 | 1.11 | 57 | 26940 | 141 | 353 | 1.416 | 9536 | ||||||||
| 14 | Punto Rojo | 20.8 | 12 | 38 | 2570 | 15 | 39 | 0.051 | 53173 | 1.085 | 1091 | 3397 | |||||||||
| 15 | UB Marketing | 16.07 | 16 | 1.3 | 182 | 9 | 22 | 4.714 | 297 | 2.104 | 1089 | 239 |
Best Online Advertising 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 go over the rules of the room before raising your paddle:
- Search positioning: the real organic Google position for the three key industry keywords, sem agency, online advertising agency and ppc agency, . It’s the heart of the ranking: an agency that knows how to win other people’s auctions should, at the very least, know how to win its own.
- 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 online advertising 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 Online Advertising Agencies in Spain
1. Cyberclick
First place goes to Cyberclick, a Barcelona agency that arrives with the highest authority and, by far, the most traffic and largest community in the whole ranking. It recently joined the European group Siloy to accelerate its international expansion, and today defines itself as “your AI partner to grow in digital marketing, sales and customer service,” with a Go-to-Market approach that unites marketing, sales and customer success under a single vision. In the auction, it’s the house that arrives with the best hand and knows how to play it.
Its online advertising offering is broad and very data-driven: SEM, Social Ads, programmatic advertising and its own media management platform (Feedest), plus inbound and content marketing, influencer and video marketing, Data Science and BI, Google Analytics 4, CRO, CRM, marketplaces, growth marketing and in-company training. It’s a HubSpot partner and leans its whole operation on AI and proprietary technology, with success cases in brands like Brico Depôt, Conforama or Miravia. For companies that want a large, technological partner with international reach, Cyberclick is a heavyweight bet.
2. BigSEO
Second place goes to BigSEO, a Barcelona-based digital marketing agency that introduces itself with a motto as direct as the way it works: “digital marketing that generates business.” What puts it this high isn’t a single factor but its muscle: it’s among the agencies with the most authority, the most backlinks and the most traffic in the whole Top 10, and on top of that it ranks very high for the sector’s main keyword. When it sits down to bid, it does so with a full wallet and a cool head.
Its proposal revolves around Paid Media with ROI as an obsession: Google Ads, Facebook Ads, YouTube Ads, Instagram Ads and remarketing, built on a base of SEO (audit, strategy, keyword research, architecture and technical SEO), CRO (A/B testing, landing pages and sales copywriting), inbound marketing and digital-business consulting. It was among the first to open the SEO in LLMs line to position brands inside generative engines, and adds a powerful training arm with its own SEO, AI and digital marketing master’s programs. It showcases success cases with hard numbers (ROAS above x500 and x1,100 on paid campaigns, or clients like Typeform that went from 1,000 to 83,000 visits a month) . For anyone after trawling capacity and measurable results at scale, BigSEO bids hard.
3. Prismalia
Third place goes to Prismalia, a Madrid-based digital marketing agency that sums up its philosophy in a phrase that goes against the grain: “first your business, then the marketing.” With its PRISMA Method it diagnoses the client’s business before proposing a single action, because, they say it plainly, they talk about revenue, not impressions; customers, not clicks. Its Google reputation, among the best in the Top 10, and solid authority keep it on the podium.
Its service menu is complete and well organized: SEM (Google Ads, Meta Ads, LinkedIn Ads and Bing Ads campaigns paying only for real interactions), Social Ads (Facebook and Instagram Ads), SEO (audit, consulting, link building, local and international SEO), web design and development, social media management and community management, inbound marketing with email marketing and newsletters, branding and graphic design. It also works with the Kit Digital program to help SMEs finance their transformation. For businesses that want advertising to start from a real strategy and not the other way around, Prismalia bids with judgment.
4. Agencia Nous
Fourth place goes to Agencia Nous, a Madrid digital marketing agency that defines itself with a distinctive phrase: they do “digital marketing with common sense.” Its flagship proposal is the Nous Plan, a “your whole marketing team on the other end of the phone” model designed for businesses that prefer a single provider to building their own department. It also ranks second for ppc agency, a sign that its paid specialty is well positioned, and its Google reputation backs it up.
Its declared focus isn’t visits or rankings but sales: they work SEM positioning with profitable campaigns that “speak your customers’ language and don’t burn budget without control” (they treat your money, they say, as if it were their own), alongside Google advertising, social media advertising and remarketing. Around that they arrange SEO, web design and development, e-commerce, branding and digital marketing consulting, all with bespoke plans and no recycled formulas. For SMEs that want a close-knit, honest team focused on profitability, Agencia Nous is a great companion at the table.
5. WAKA
In fifth place stands WAKA, a studio based in Madrid (with an office in San Diego, California) that has spent more than 10 years building brands. It’s the most creative in the room: a branding and digital design agency awarded a Laus 2020 and several Awwwards recognitions, with a very active community that gives it the highest engagement among the agencies in its tier. Its signature is strategic design with purpose, not the “pretty logo.”
Although its heart is branding, creativity and UX/UI, motion and video design, its strong positioning and authority place it squarely in the online advertising universe: it ranks for the industry keywords and works the brand as the foundation on which to later build any campaign. Its own methodology, “wakalogía,” combines methodological rigor with creative freshness and involves the client at every stage. It has worked with organizations like BBVA, Marriott International, Kyocera or the Real Instituto Elcano, on both sides of the Atlantic. For brands that understand a good campaign starts with a good identity, WAKA brings the most creative card.
6. Bastida Farina
Bastida Farina takes sixth place and arrives with a very clear focus: it’s an agency specialized in lead generation that has worked since 2020 with its own system, A.R.C.O. Its promise is direct, revolutionize customer acquisition,, and it’s backed by a very solid Google reputation and abundant cases: they say they generate more than 2,000 qualified calls a day for their clients, with dozens of documented cases.
Its method combines the three legs of results-driven online advertising: first, hyper-segmented content and ads to locate and educate the audience; then, lead filtering with AI or calls from its sales reps within minutes; and finally, nurturing those leads with valuable emails and videos until they arrive ready at the client’s sales team. It showcases concrete results (x25 returns, leads at €2, or campaigns that generated over €88,000 with less than €2,000 of monthly investment) and a strong LinkedIn presence. For B2B businesses that live on filling the sales pipeline, Bastida Farina aims straight at the lead.
7. Digital Menta
Seventh place goes to Digital Menta, a digital consultancy that introduces itself with a clear invitation: “reinvent the way you grow.” Its great virtue is a flawless Google reputation, among the best in the Top 10, and a strategic-partner approach that dives deep into each client’s industry, with its own sector reports on retail, SaaS or education.
In online advertising it works SEM and PPC as one of its pillars, alongside Social Ads, programmatic advertising, GEO (SEO for AI), SEO, marketing automation, web analytics, CRO, communication, development and even AI chatbots for WhatsApp. Its discourse combines data-driven growth, user experience and talent, backed by testimonials from brands like Cosentino (where they claim to have captured more than 37,000 professional leads in a year) or clients that tripled their sales in four years working with them. For companies looking for a consultancy that understands their sector and executes with method, Digital Menta bids with a cool head.
8. agenciaSEM.eu
Eighth place goes to agenciaSEM.eu, a performance marketing agency that introduces itself bluntly: “business and paid are not the same.” Its signature is applying the scientific method to every action (observe, form hypotheses and draw conclusions), with more than 10 years of experience and a presence in Madrid, Barcelona and Valencia. It’s one of the best rankers for the sector’s main keyword, and its LinkedIn engagement is among the highest in the table.
Its proposal is pure measurable paid media: Google Ads (choosing the campaign type that best fits each business, rather than letting the algorithm decide alone), Meta Ads, LinkedIn Ads, TikTok Ads, programmatic advertising, Marketplace (Amazon, eBay, Etsy and more) and Analytics and CRO. Its discourse rests on four values (growth, transparency, proactivity and critical thinking) and on an idea they repeat often: investing more isn’t the key to scaling, investing intelligently is. For anyone who wants an agency obsessed with performance and with speaking plainly, agenciaSEM.eu bids with rigor.
9. SEM Manager
In ninth place comes SEM Manager, an agency that introduces itself as “specialists in profitability and digital growth” and carries the auction right in its name. Its great asset is a spotless Google reputation, among the best in the whole table, built over more than three years working with a broad client base across very different sectors. This is a house that bids to make money, not to show off impressions.
Its proposal is pure measurable performance: Google Ads, Meta Ads (Facebook and Instagram), digital analytics, and landing pages and creatives designed to convert, with early exploration of advertising on OpenAI. It works under a five-phase SEM strategy (diagnostic audit, strategic definition, structuring and activation, continuous optimization and business-metric reporting), and its credentials back it up: it’s a Google Partner and Meta Business Partner, with analytics and tagging certifications. Its clients include well-known brands like Thermomix. For anyone who wants an agency that measures every euro and talks about real results, SEM Manager bids with the calculator in hand.
10. Bilnea
The extended podium is closed by Bilnea, an agency based in Murcia (with an office in Valencia) that is part of the Inforges group and sums up its promise in a direct phrase: “we expand your business results.” Its backlink muscle (the largest in the whole ranking, leveraged on the group’s structure) and a very solid Google reputation keep it among the top ten.
Its model revolves around the proprietary ACR methodology (Authority, Conversion and Relationship), which unifies the strategy so the brand acts as a single block across all channels. In online advertising it works Google Ads and Meta Ads, supported by SEO and SEO for AI, email marketing and social media management, including TikTok. It’s a Google Partner and HubSpot Partner, and rolls out its localized SEO and SEM service in more than fifteen Spanish cities, with documented B2B and B2C cases like Tkrom Pinturas or Polymec. For businesses that want a partner with group backing and a strategy stitched across channels, Bilnea closes the Top 10 with solidity.
The auction goes to whoever aims best
At the end of the road, online advertising isn’t won by whoever shouts loudest or pays the most: it’s won by whoever aims best. 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: here not even we slipped in where we didn’t belong.
Now the next move is yours. You already know who has the most trawling capacity, who masters the new terrain of the AIs, who bids with the scientific method and who best knows each local room. All that’s left is to pick the right agency and raise your paddle. Because that’s the key to the silent auction of SEM: not showing up more often, but showing up in front of the right person at the right moment. And since marketing is a system held up between disciplines, the best SEM campaign is the one that works hand in hand with SEO, social and content, not the one that bids alone.
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.
