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11 Best ChatGPT Ads Agencies in Barcelona (2026)

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    Meer dan 50 zakelijke kansen gegenereerd voor Britse architectuur- en ontwerpdienstenaanbieder *
    Kosten per lead ruim zes keer verlaagd voor Dutch Event Technology Company *
    Bereikte 13.000 doelgroepen en genereerde 400 kansen voor Swiss Sports Tech Provider *
    Conversiepercentage van Oekraïens IT-bedrijf verhoogd met 53,6% *
    Het aantal jaarlijks verworven klanten van de Amerikaanse Software Development Company is toegenomen door 400% *
    Meer dan 50 zakelijke kansen gegenereerd voor Britse architectuur- en ontwerpdienstenaanbieder *
    Kosten per lead ruim zes keer verlaagd voor Dutch Event Technology Company *
    Bereikte 13.000 doelgroepen en genereerde 400 kansen voor Swiss Sports Tech Provider *
    Conversiepercentage van Oekraïens IT-bedrijf verhoogd met 53,6% *
    Het aantal jaarlijks verworven klanten van de Amerikaanse Software Development Company is toegenomen door 400% *
    Meer dan 50 zakelijke kansen gegenereerd voor Britse architectuur- en ontwerpdienstenaanbieder *
    Kosten per lead ruim zes keer verlaagd voor Dutch Event Technology Company *
    Bereikte 13.000 doelgroepen en genereerde 400 kansen voor Swiss Sports Tech Provider *
    Conversiepercentage van Oekraïens IT-bedrijf verhoogd met 53,6% *
    AI Samenvatting
    Sergii Steshenko
    CEO & Co-Founder @ Lengreo

      ChatGPT Ads is now a practical paid media channel for companies in Barcelona. As of August 31, 2026, OpenAI says self-service Ads Manager is available across its 31 European launch markets, including Spain.

      This guide covers agencies with direct ChatGPT Ads capabilities, Barcelona offices or operations, or clear coverage of Spanish advertisers. The selection ranges from local performance marketing specialists to international media networks involved in OpenAI’s advertising ecosystem.

      Lengreo

      1. Lengreo

      Lengreo provides ChatGPT Ads services in Barcelona as part of a broader B2B acquisition strategy rather than treating ChatGPT advertising as an isolated experiment. Its paid advertising work covers PPC strategy, programmatic and account-based advertising, retargeting, landing page optimization, and campaign analytics. The agency also provides lead generation and demand generation services.

      Lengreo’s AI search work helps companies improve visibility across platforms such as ChatGPT, Gemini, and Perplexity, including businesses targeting the Barcelona market. This combination makes Lengreo relevant for teams in Barcelona that want to connect ChatGPT Ads with lead generation, conversion activity, AI search visibility, and their wider paid media strategy.

       

      Key Facts:

      • Best for: B2B companies connecting ChatGPT Ads with lead generation and demand generation
      • Core services: ChatGPT Ads, paid advertising, PPC, programmatic advertising, ABM, retargeting, landing page optimization
      • Market coverage: International B2B campaigns, including work with companies targeting Barcelona
      • Notable strength: Combining paid acquisition with AI-search visibility and conversion activity

       

      Contactgegevens:

      • koppelingslogo
      • trustpilot-logo
      2. Adsmurai

      2. Adsmurai

      Barcelona-based Adsmurai is one of the clearest local matches for companies looking for direct ChatGPT Ads experience. In May 2026, the company announced its first activations on ChatGPT Ads and outlined services around strategy, campaign execution, measurement, product feeds, and generative AI visibility.

      Its background in paid social, data, creative optimization, and advertising technology gives it a useful foundation for adding ChatGPT to an existing multi-channel media plan. The agency is particularly relevant to brands that need both campaign execution and the technical infrastructure behind measurement and product data.

       

      Key Facts:

      • Best for: Brands adding ChatGPT Ads to established digital advertising programs
      • Core services: ChatGPT Ads, paid media, campaign measurement, product feeds, creative optimization
      • Location: Barcelona headquarters
      • Notable strength: Early direct experience activating ChatGPT advertising campaigns

       

      Contactgegevens:

      • Website: www.adsmurai.com
      • Email: [email protected]
      • Facebook: www.facebook.com/adsmurai
      • Twitter: x.com/Adsmurai
      • LinkedIn: www.linkedin.com/company/adsmurai
      • Instagram: www.instagram.com/adsmurai
      • Phone: +34 931 222 301
      • Address: Passeig de Gràcia 60, 08007 Barcelona, Spain

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        3. Ongoing Digital

        3. Ongoing Digital

        Ongoing Digital provides a dedicated ChatGPT Ads service from Barcelona. Its process covers initial business analysis, conversational intent research, campaign architecture, context targeting, creative development, measurement, and ongoing optimization.

        Measurement is a notable part of the offer. The agency works with OpenAI Pixel, Conversions API, UTM tracking, and GA4, helping advertisers connect ChatGPT activity with measurable actions after the click. It can also coordinate the channel with Google, Meta, LinkedIn, and TikTok advertising, which is useful for businesses running several acquisition channels at once.

         

        Key Facts:

        • Best for: Companies that want detailed tracking and multi-channel paid media integration
        • Core services: ChatGPT Ads strategy, context targeting, creative, tracking, campaign optimization
        • Measurement: OpenAI Pixel, Conversions API, UTMs, GA4
        • Location: Barcelona
        • Notable strength: End-to-end campaign management with a strong analytics component

         

        Contactgegevens:

        • Website: ongoing.cat
        • E-mail: [email protected]
        • LinkedIn: www.linkedin.com/company/ongoing-digital
        • Instagram: www.instagram.com/ongoingdgtl
        • Phone: +34 611 540 524
        • Address: Passeig Olímpic, 15-17, Sants-Montjuïc, 08038 Barcelona, Spain
        4. COSEOM

        4. COSEOM

        COSEOM provides ChatGPT Ads management with a particular focus on B2B and international campaigns. Its service covers channel-fit assessment, conversational intent and context planning, campaign structure, creatives, feeds, and reporting.

        The Barcelona agency places substantial emphasis on measurement before launch. Its ChatGPT Ads work can incorporate the OpenAI Pixel, Conversions API, UTM parameters, CRM data, and reporting systems. COSEOM also has long-standing experience in international PPC and SEO, making it a practical option for Barcelona-based B2B companies advertising across several languages or markets.

         

        Key Facts:

        • Best for: International B2B companies
        • Core services: ChatGPT Ads, PPC, paid social, SEO, campaign measurement
        • Measurement: OpenAI Pixel, Conversions API, UTM and CRM reporting
        • Location: Barcelona
        • Notable strength: Multilingual international paid acquisition experience

         

        Contactgegevens:

        • Website: www.coseom.com
        • Facebook: www.facebook.com/coseom
        • Twitter: x.com/coseom
        • LinkedIn: www.linkedin.com/company/coseom
        • Phone: +34 932 710 218
        • Address: Plaça Universitat 3, Planta 6, 08007 Barcelona
        5. James Brand & Co

        5. James Brand & Co

        James Brand & Co combines creative agency work with performance advertising and has a dedicated service for advertising across conversational AI platforms. Its offering covers ChatGPT alongside Gemini, Perplexity, and Copilot, with campaign work extending from strategy and creative development to ongoing optimization.

        The Barcelona office makes it a local option for companies that want creative and media work handled together. This can be useful when ChatGPT Ads campaigns require new messaging, visuals, landing pages, or positioning rather than simply reallocating budget from an existing search campaign.

         

        Key Facts:

        • Best for: Brands combining campaign strategy with creative development
        • Core services: ChatGPT Ads, AI-platform advertising, digital strategy, creative, campaign optimization
        • Location: Barcelona
        • Notable strength: Integrating creative development with conversational advertising

         

        Contactgegevens:

        • Website: jamesbrand.co
        • Email: [email protected]
        • Facebook: www.facebook.com/jamesbrand.co
        • LinkedIn: www.linkedin.com/company/james-brand-&-co
        • Instagram: www.instagram.com/jamesbrandagency
        • Phone: +34 93 414 40 15
        • Address: C/ de Mallorca, 318, Principal, 2, 08037 Barcelona, Spain
        6. Cosmo5

        6. Cosmo5

        Cosmo5 has built a dedicated ChatGPT Ads practice around the European rollout of the platform. The agency’s own material identifies it as an OpenAI partner involved in early European advertising activity, with campaigns covering Spain and other markets.

        Its approach includes semantic intent mapping, conversion tracking, UTM structures, product feeds, landing page reviews, context mapping, creative development, and campaign governance. That combination makes Cosmo5 particularly relevant to larger advertisers that want a structured testing and measurement framework rather than a small standalone media experiment. The company also has a Barcelona office.

         

        Key Facts:

        • Best for: Enterprise and multi-market advertisers
        • Core services: ChatGPT Ads activation, semantic intent mapping, measurement, feeds, creative, landing page analysis
        • Location: Barcelona office
        • Notable strength: Early experience with European ChatGPT Ads campaigns

         

        Contactgegevens:

        • Website: cosmo5.com
        • E-mail: [email protected]
        • LinkedIn: www.linkedin.com/company/cosmo5
        • Address: Calle de Entença, 92, Barcelona, Cataluña, 08015, España
        • Phone: (+34) 935 326 991
        7. Bloom

        7. Bloom

        Bloom is a marketing and technology consultancy based in Sabadell that serves businesses across the Barcelona metropolitan area. Its current ChatGPT Ads service covers account preparation, campaign strategy, conversational intent, ad copy and creative, landing pages, measurement, and media investment.

        Because Bloom also works on wider digital marketing and technology projects, it may suit smaller and mid-sized businesses that need help beyond the media buy itself. Landing page improvements and tracking can be handled alongside the advertising campaign, which is useful for companies entering ChatGPT Ads without an existing setup for the channel.

         

        Key Facts:

        • Best for: SMEs in Barcelona and the surrounding metropolitan area
        • Core services: ChatGPT Ads, campaign strategy, creative, landing pages, measurement
        • Location: Sabadell, Barcelona
        • Service area: Barcelona and surrounding municipalities
        • Notable strength: Combining advertising with marketing technology and conversion work

         

        Contactgegevens:

        • Website: bloom.red
        • Email: [email protected]
        • LinkedIn: www.linkedin.com/company/bloomred
        • Instagram: www.instagram.com/bloompuntored
        • Phone: +34 650 10 95 25
        8. Dentsu

        8. Dentsu

        Dentsu offers a different route into ChatGPT advertising for large organizations. OpenAI identifies Dentsu as one of the agency partners working with its advertising platform, alongside Omnicom, Publicis, and WPP. These partnerships cover areas such as media planning, budgeting, bidding, creative, and campaign execution.

        The group’s Spanish operation has a Barcelona office and includes media brands such as Carat, Dentsu X, and iProspect. This structure makes Dentsu more relevant to advertisers that need ChatGPT incorporated into a large cross-channel media plan, potentially across several countries, brands, or business units.

         

        Key Facts:

        • Best for: Large and enterprise advertisers
        • Core services: Integrated media, digital advertising, media planning, performance marketing
        • ChatGPT Ads connection: Dentsu is named by OpenAI as an agency partner
        • Location: Barcelona office
        • Notable strength: Access to a large international media agency network

         

        Contactgegevens:

        • Website: www.dentsu.com
        • Email: [email protected]
        • Facebook: www.facebook.com/dentsuESP
        • Twitter: x.com/dentsuESP
        • LinkedIn: www.linkedin.com/company/dentsu
        • Instagram: www.instagram.com/dentsuspain
        • Phone: 913 53 62 00
        • Address: Av. Diagonal, 177, Edificio Imagina, Planta 7, 08018 Barcelona, Spain
        9. OMD Spain

        9. OMD Spain

        OMD Spain is part of Omnicom Media, giving Barcelona advertisers access to one of the global agency groups working directly with OpenAI on its advertising platform. OpenAI names Omnicom among its agency partners for ChatGPT Ads.

        OMD has a physical Barcelona office and focuses on media strategy, planning, buying, data, and campaign effectiveness. It is therefore more likely to suit established advertisers with substantial multi-channel media programs than businesses looking only for a small ChatGPT Ads test. The group connection is important here: OpenAI’s announced partnership is with Omnicom, rather than a separate partnership specifically attributed to the Barcelona OMD office.

         

        Key Facts:

        • Best for: Established brands with large media programs
        • Core services: Media strategy, planning, buying, data, performance marketing
        • ChatGPT Ads connection: Parent group Omnicom is named as an OpenAI agency partner
        • Location: Barcelona office
        • Notable strength: Integration with wider Omnicom media capabilities

         

        Contactgegevens:

        • Website: www.omd.com
        • E-mail: [email protected]
        • Phone: +34 934 458 000
        • Address: Carrer de la Marina 16, 08005 Barcelona, Spain
        10. Starcom Spain

        10. Starcom Spain

        Starcom is part of Publicis Groupe, another major agency group that OpenAI identifies among its ChatGPT Ads partners. This gives Starcom a credible route into the new channel through the wider Publicis media organization, while its existing work centers on media planning, communications strategy, data, and advertising technology.

        Starcom maintains an office in Barcelona, making it relevant to major advertisers that value local account access but need campaigns coordinated through an international media network. As with OMD, the OpenAI partnership is announced at parent-group level rather than specifically for the Barcelona office.

         

        Key Facts:

        • Best for: Large consumer brands and international advertisers
        • Core services: Media planning, communications strategy, digital advertising, data
        • ChatGPT Ads connection: Publicis is named by OpenAI as an agency partner
        • Location: Barcelona office
        • Notable strength: International media capabilities combined with local presence

         

        Contactgegevens:

        • Website: www.starcomww.com
        • E-mail: [email protected]
        • Facebook: www.facebook.com/starcomww
        • Twitter: x.com/StarcomWW
        • LinkedIn: www.linkedin.com/company/starcom1
        • Instagram: www.instagram.com/starcomww
        • Phone: +34 933 96 77 00
        • Address: Calle de Aragón 385, 08013 Barcelona, Spain
        11. WPP Media

        11. WPP Media

        WPP has been directly involved in the early development of ChatGPT advertising. OpenAI identifies WPP as an agency partner, while WPP Media has also discussed participation in the ChatGPT Ads pilot with advertisers across sectors including automotive, consumer goods, entertainment, luxury, retail, technology, and travel.

        WPP Media currently recruits for Barcelona-based positions, indicating an operating presence in the city, although its public Spain contact page lists Madrid as its principal Spanish office. It is therefore most appropriate for Barcelona companies looking for large-scale media capabilities rather than an exclusively local boutique relationship.

         

        Key Facts:

        • Best for: Enterprise advertisers and multi-market campaigns
        • Core services: Media planning, media buying, data, technology, performance marketing
        • ChatGPT Ads connection: WPP is an OpenAI agency partner and WPP Media participated in the advertising pilot
        • Notable strength: Experience connecting new advertising channels with global media programs

         

        Contactgegevens:

        • Website: www.wppmedia.com
        • Twitter: x.com/WPPMedia
        • LinkedIn: www.linkedin.com/company/wpp-media
        • Instagram: www.instagram.com/wppmedia
        • Address: Calle de Ríos Rosas, Madrid, Spain

        Conclusie

        Businesses looking for ChatGPT Ads agencies in Barcelona can choose from local digital marketing teams as well as agencies offering broader paid media, AI marketing, and search visibility services. When evaluating providers, it is useful to consider their experience with campaign setup, audience targeting, creative testing, conversion tracking, and ongoing optimization rather than focusing only on the initial launch.

        The right agency will depend on the company’s acquisition goals, budget, existing advertising channels, and need for ongoing support. ChatGPT Ads can complement Google and Meta campaigns or form part of a wider strategy that includes SEO and AI search visibility. This guide provides a starting point for comparing agencies in Barcelona and identifying a provider that fits the company’s marketing needs.

        AI Samenvatting