Best Social Media Agencies in Barcelona (2026)

Introduction

Barcelona has seven social media agencies worth a close look in 2026, ranging from a paid social specialist with more than 400 staff to a small studio that builds AI influencers. Between them they cover community management, creator campaigns, social content and social advertising.

The city’s social scene grew out of its consumer brands and its startups. Fashion labels such as Mango and Desigual, food and drink groups such as Freixenet, and marketplaces such as Wallapop all run large social programmes from Barcelona, and several of the agencies below count them as clients. The past two years brought more creator and AI work: The Clueless built a client list that includes Audi, L’Oréal and Banco Santander around its AI model Aitana López, while Adsmurai added AI tools such as Kata to its paid social platform and holds 2026 partner status with Meta, TikTok, Google and Pinterest.

Every agency here has an active Barcelona office in 2026. Performance and SEO shops sit on our marketing agencies list, so this one focuses on social-first, creator, influencer and community work. The list is unranked, since the right fit depends on your channels, budget and how much of the work you want handled in-house.

The best social media agencies in Barcelona

1. Adsmurai

Founded in Barcelona · Eixample · adsmurai.com

Adsmurai started in Barcelona in 2014 and still runs its headquarters from Passeig de Gràcia. It now has more than 400 staff, offices in Madrid, Málaga, Bogotá, New York, Dubai and Milan, and it has bought Zinkdo, Clever Ads and Ciaodino along the way. The company carries a 2025 Deloitte Technology Fast 50 badge and 2026 partner status with Meta, TikTok, Google, Microsoft and Pinterest.

Its core is paid social backed by its own software, with creative production, content and influencer marketing alongside. Clients shown on its site include Mango, FC Barcelona, Alcampo and Logitech. It suits brands spending heavily on social ads across several markets; for purely organic community work, a smaller shop may fit better.

2. Good Rebels

Founder-led group · Eixample · goodrebels.com

Good Rebels is a digital agency group with offices in Barcelona, Madrid, Bilbao, Brighton and Mexico City, and more than 100 staff. Fernando Polo is chief executive and Juan Luis Polo a founding partner. The group is split into specialist teams, including Territorio (creative), Estudio34 (performance) and Asesores (communication and reputation), and it added Kuantik, an AI unit, over 2025 and 2026.

Social sits in its Engagement and Social practice, which covers social media, CRM and community relationships, with PR and influence handled alongside. Clients include Decathlon, Iberostar, Volotea, Telefónica and Domino’s. The Barcelona office is on Carrer de Roger de Llúria.

3. The Clueless

Part of Benana Studio · Barcelona · theclueless.ai

The Clueless is a Barcelona studio that builds AI influencers, digital avatars and the campaigns around them. Co-founders Rubén Cruz and Diana Núñez created Aitana López, which the agency presents as the first AI influencer and which passed 340,000 Instagram followers. It grew out of the creative studio Benana Studio and works from Carrer Jericó.

Brands on its client list include Audi, L’Oréal, Douglas, Coca-Cola, Banco Santander, Mahou and Lynk & Co. Before signing, agree how AI-generated content will be labelled on each platform and who owns the characters and assets created for your campaign.

4. Elespacio

Barcelona and Berlin studio · Gothic Quarter · elespacio.net

Elespacio is a digital studio with offices on Carrer dels Escudellers in the Gothic Quarter and in Berlin. Content and social media is one of its main services, set within what it calls brandformance alongside performance and email marketing, and it uses its own REEAL strategy method. Lucas Onofre is managing partner.

Its client list leans towards hospitality, drinks and fashion: Nespresso, Desigual, Freixenet, Meliá, NH Hotels, Zalando and Victorinox. It also runs influencer campaigns with micro and nano creators.

5. Hamelin

Founder-led · Sant Gervasi · hamelin.agency

Hamelin is an influencer marketing agency that Marisa Oliver founded in Barcelona in 2016, and one of the earlier creator specialists in Spain. It started in influencer representation and moved into campaign strategy and content, with a team of around nine working from Travessera de Gràcia.

Its best-known work is for Wallapop, including a Spanish campaign that used more than 70 creators with a combined reach of over two million followers. It has also worked with TikTok Spain on its TikTok LIVE programme. It suits brands that want a specialist to handle creator selection, contracts and reporting rather than a full-service agency.

6. Apple Tree

Independent, B Corp · Barcelona · appletree.agency

Apple Tree is an independent strategic communications agency founded by Carme Miró, its chief executive, with its headquarters in Barcelona and a larger team in Madrid. It is a certified B Corp. Revenue reached €23.6 million in 2023, and the group took in Keeper Experience, an influencer and gaming specialist.

Social and creator work runs inside a wider communications offer. Recent projects include a Creator Hub for Radisson Hotels and an influencer campaign for CHOVÍ, and clients include SEAT and CUPRA, Wallapop, Danone, Manchester City and Mahou. It fits brands that want social, PR and influencer work planned together.

7. Karmina

Social-first agency · Barcelona · agenciakarmina.com

Karmina is a social media agency founded in Barcelona in 2015, with further teams in Madrid and Buenos Aires. Its work covers social strategy, content, community management, TikTok, influencer campaigns and social listening, and it runs a creator format called Content Host Club. It works in Catalan as well as Spanish.

Clients include Aena, BrewDog, Fotocasa, Penguin Random House, De’Longhi and the research institute IRB Barcelona. It is a practical choice for brands that need day-to-day community management in both of the city’s languages.

What to look for in a Barcelona social media agency

Decide first how much of the work is paid. Agencies such as Adsmurai are built around social advertising and their own tooling, while creator specialists such as Hamelin spend most of their time on talent selection and campaign management. Many briefs need both, and it is worth knowing which side an agency leads with before you compare fees.

Ask about languages. Barcelona brands often publish in Catalan and Spanish, and many also run English and French accounts for tourism and export markets. Check who writes each language and whether community management covers evenings and weekends, when a lot of comment traffic arrives.

For creator and AI work, agree the paperwork early. Usage rights, exclusivity windows, disclosure of paid partnerships and labelling of AI-generated content should all be written into the contract. Agencies that manage talent as well as campaigns can move faster here, though you should ask how they handle any conflict between the two roles.

Look at how content gets approved. Social teams turn round dozens of short videos, carousels and captions each week, often with creators filming on their phones. Feedback scattered across chat apps, email and shared drives slows everything down, so ask where drafts live, who signs off, and how changes are tracked.

How Fabric helps social media agency teams

Fabric gives a social team one workspace for raw footage, edited cuts, captions, briefs and client feedback, with AI search across all of it. The agency setup keeps one space per client, and the content creation guide for social agencies shows how teams organise a weekly posting pipeline.

Creator footage and edits sit in Fabric’s cloud drive, which streams files on demand so they take no local disk space. Uploaded videos are transcribed and become searchable, so a strategist can find the clip where a creator mentions a product and jump straight to that timestamp. Search works by meaning across documents, images and recordings, and colour search finds assets by shade when a client wants everything in its brand palette.

Planning can run on Kanban boards where each card is the actual file, moving from draft to review to scheduled. For review rounds, the team shares a folder with the client as a commenter. Through that shared link, without creating an account, the client can leave timestamped comments on video and draw on frames and images, and the team marks each comment completed as it is fixed. Teams working on vertical video will find more in the guides for TikTok and Instagram agencies.

On Team plans, Fabric can maintain a page for each client from meetings, Slack and the workspace, covering decisions, deliverables and open items, which helps when community managers rotate between accounts.

Client pages are included on Team plans, which start at $125 a month. See plans for teams.

Frequently asked questions

What is the best social media agency in Barcelona?

It depends on the work. For paid social at scale, Adsmurai is the largest Barcelona-headquartered specialist. For influencer campaigns, Hamelin and Karmina have long Barcelona track records, and for AI creators The Clueless is the best-known name.

How much does a social media agency in Barcelona cost?

None of the agencies here publish rates. Most work on monthly retainers for community management and content, with influencer campaigns priced per project and creator fees on top. Ask for a breakdown that separates agency fees, production costs and payments to creators.

Do Barcelona social media agencies work in Catalan?

Many do. Karmina lists Catalan and Spanish services, and most local agencies can produce content in both. Confirm who writes and moderates each language before signing.

Which Barcelona agencies work with AI influencers?

The Clueless is the main specialist, with Aitana López and avatars built for brands such as Audi and L’Oréal. Larger groups such as Adsmurai and Good Rebels also offer AI tools within their social and performance work.

Where can I find agencies for wider digital marketing in Barcelona?

Agencies focused on SEO, paid search and full-funnel growth are on our list of the best marketing agencies in Barcelona. For branded video and creator content production, see the content studios list.

Related lists

Social media agencies in other cities: Madrid · New York · London · Los Angeles · Paris

More in Barcelona: Creative agencies · Marketing agencies · Content studios · Advertising agencies · Video production · Branding agencies

Run your agency on Fabric: Fabric for agencies · Fabric for content creators · Fabric for marketers