Best AEO agencies in Buenos Aires, 2026

BEST FOR — Argentine and LATAM B2B brands across SaaS, fintech, professional services, and industrial tech that want the first explicitly GEO and AEO-positioned agency in Argentina working on ChatGPT, Perplexity, and Gemini citation share.

Exista.io positions itself as the first Argentine agency specialized exclusively in GEO, with a proprietary EVS (Entity Visibility Score) framework measuring how often ChatGPT, Perplexity, and Gemini cite a brand for buyer-intent queries. Their published research that 68 percent of Argentine B2B decision-makers in SaaS, fintech, and professional services already use AI tools to evaluate providers before purchase is the right altitude for a Porteño CMO making the AEO case to a board. Initial visibility lift typically lands within 60 to 90 days of consistent work, and the USD pricing model insulates the contract from peso devaluation.

WATCH-OUT — Smaller senior team than the global holding-company agencies on this list, so multi-country pan-LATAM rollouts that need Sao Paulo or Bogota on-the-ground coordination will stretch capacity.

BEST FOR — Argentine B2B brands and pan-LATAM scaleups that want a Buenos Aires agency with a proprietary AI auditing tool covering Google, ChatGPT, Perplexity, and Gemini citation share inside rioplatense Spanish.

SciData runs the seodiag platform, a proprietary AI-driven tool that performs more than 200 automated technical validations prioritized by real citation impact, and is one of only two Argentine agencies that the SEOdiag 2026 technical audit ranked as actually optimized for generative AI engines to digest. The agency adapts content to rioplatense Spanish, including voseo and B2B Argentine idioms, without sacrificing international indexing, which matters because Google.com.ar weights local signals and ChatGPT cites the version that matches the user's locale. The right pick for a Porteño B2B brand that needs both Google.com.ar ranking and AI Overview citation share inside Spanish-language queries.

WATCH-OUT — Boutique senior bench and platform-led delivery means brands that want a 30-person creative pod for digital PR and brand-side campaign work should benchmark against GUT or Mercado McCann.

BEST FOR — Argentine and pan-LATAM brands across services, e-commerce, and B2B that want a 13-year SEO veteran that has explicitly layered GEO and AEO work for ChatGPT, Perplexity, and Google AI Overviews on top of a high-volume content engine.

SEO Express has 13-plus years of operating history with more than 250 successful positioning projects across Argentina, Chile, Colombia, Paraguay, Mexico, the US, and Spain, and is the technical SEO partner of the Asociación Argentina de Marketing Financiero (AAMF). The agency is one of only two Argentine shops the SEOdiag 2026 audit flagged as having technical code structures actually compatible with how generative AI engines ingest content, which is rare in a market where the audit found 90 percent of agencies were effectively invisible to ChatGPT and Perplexity. The cross-border project base is the right fit for a Buenos Aires brand running a regional category build.

WATCH-OUT — SEO heritage means GEO and AEO are layered onto a broader services menu rather than priced as a standalone product line; expect to scope AEO explicitly in the SOW.

BEST FOR — Enterprise LATAM brands and global multinationals that want a Buenos Aires-founded NYSE-listed digital and AI consultancy delivering AI Pods, agentic workflows, and digital transformation programmes at scale.

Globant is the Buenos Aires-founded NYSE-listed digital transformation firm with 28,700-plus employees across 30-plus countries and ten Argentine offices including the Globant Tower flagship in Buenos Aires. The Enterprise AI Pods practice and Digital Twins programme cover AI strategy, applied ML, and content workflow automation for clients like CMPC where a Globant-deployed AI supply chain solution cut manual tracking from 12 days to 3 minutes. For a $50M-plus ARR LATAM brand that needs AEO delivered as part of a wider AI and digital programme rather than a standalone retainer, Globant is the credibility partner most US procurement teams already recognise.

WATCH-OUT — Enterprise consultancy pricing and process; Series A SaaS or DTC brands spending under $50,000 a month will not get senior-team attention and should look at Exista.io or SciData instead.

BEST FOR — Enterprise consumer, financial, and global retail brands that want the AdAge International Agency of the Year 2024 winner delivering creative-led AI search visibility through provocative campaign work.

GUT Buenos Aires made history in 2024 as the first Argentine agency named AdAge's International Agency of the Year, and was named the #2 Most Innovative Company in Advertising and Marketing by Fast Company in 2024. The work for Stella Artois (The Artois Probability), Google Pixel, and the broader 80-plus brand client book shows the team can ship creative that earns earned media and organic citation share inside ChatGPT and Perplexity at the same time. The right pick for an enterprise CMO who needs an AEO programme that runs through campaign-led PR rather than technical SEO.

WATCH-OUT — Creative-led pricing and process built for enterprise creative-of-record relationships; brands that want a pure-play AEO citation specialist should pair GUT with Exista.io or SciData rather than treat GUT as the sole AEO partner.

BEST FOR — Enterprise Argentine and global brands that want a McCann Worldgroup creative hub run from Buenos Aires with a documented track record on financial services, insurance, and consumer brands.

Mercado McCann is the McCann Worldgroup creative hub in Buenos Aires, led by Martin Mercado and built to deliver global creative services to the wider Interpublic network. Recent work for CONMEBOL, Sancor Seguros, Buscapina, and Piero shows the team can ship Spanish-language campaign and AEO content that lands across Argentina and pan-LATAM, with senior strategist time in ART and direct access to McCann's global media and SEO teams when an enterprise programme needs a US or EU layer. The right pick for a regulated financial services or insurance brand that needs creative, media, and AEO under one Interpublic relationship.

WATCH-OUT — Holding-company pricing and process; bespoke Series A or seed-stage AEO scopes will get less senior-team attention than a Buenos Aires boutique, and AEO is layered onto creative rather than priced standalone.

BEST FOR — Enterprise consumer, fintech, and digital-native brands that want a global R/GA office in Buenos Aires delivering integrated brand-system, product, and AI search work after R/GA's 2025 spin-out from Interpublic.

R/GA Argentina is the Buenos Aires office of R/GA, which became an independent agency in 2025 after spinning out of Interpublic with private equity backing, and runs out of Castillo 1366 with Pablo Munoz leading client engagement. The R/GA network is known for shipping integrated brand systems that pair design, product, and AI search visibility, which is the right shape for a Porteño fintech or SaaS that wants AEO delivered as part of a wider digital rebrand rather than a tactical SEO scope. The Buenos Aires office gives ART-resident senior creative time inside a US-led global network.

WATCH-OUT — Brand-systems heritage means AEO is layered onto wider digital transformation programmes rather than priced as a standalone product, so brands that want pure-play AI citation work should benchmark against Exista.io first.

BEST FOR — Enterprise consumer, financial, and FMCG brands that want the Omnicom holding-company creative agency in Buenos Aires with documented work for Pepsi, Mars, FedEx, and Visa across LATAM.

BBDO Argentina is the Omnicom holding-company creative agency in Buenos Aires, reporting $21.8 million in annual revenue for 2026 and operating out of Vicente Lopez. The BBDO global network gives Argentine enterprise clients direct access to Omnicom's media buying, SEO, and AI search practices, which makes BBDO the safest pick for a regulated financial services or FMCG brand that needs creative, media, and AEO delivered through a single global agency-of-record. The Buenos Aires office has shipped Argentine campaigns for global brands including Pepsi, Mars, Visa, and Gillette.

WATCH-OUT — Omnicom-network pricing and process designed for enterprise creative retainers; AEO and GEO are added to existing search and digital teams as needed rather than delivered by a dedicated practice, so brands that want a specialist should benchmark against Exista.io or SciData.

BEST FOR — Argentine and pan-LATAM B2B brands that want a Valencia-founded HubSpot-aligned inbound shop with nine LATAM offices and a 360-degree growth approach across online and offline channels.

Increnta is a Valencia-founded business-growth partner with offices across Buenos Aires, Santiago, Montevideo, Asuncion, La Paz, Lima, Quito, and Caracas, which is the right footprint for a Porteño B2B brand expanding into the southern cone or the Andean corridor at the same time. The integrated marketing, sales, and customer success methodology covers inbound, SEO, AEO, and HubSpot enablement under one roof, and the Buenos Aires office runs Spanish-first strategist time with senior bench access to the Valencia and Madrid teams when an enterprise brief needs an EU layer.

WATCH-OUT — Spain-centric senior bench; bespoke Argentina-only campaigns can rotate through Valencia-based strategists, which means async handoffs and a less ART-resident senior team than a pure Porteño shop like Exista.io or SciData.