Last Updated on July 13, 2026 by Team TBH
Artificial intelligence is changing how people discover brands online. Instead of scrolling through ten blue links, users increasingly rely on AI-generated answers from ChatGPT, Google AI Overviews, Gemini, and Perplexity. Alphabet reported that Google AI Overviews reached more than two billion monthly users across 200 countries by the end of 2025, while the Gemini app surpassed 750 million monthly active users. These platforms have become an important part of B2B research, software comparisons, and purchase decisions.
This shift creates a new challenge for marketing teams. A potential customer may never visit a company’s homepage before reading an AI-generated summary about the brand. If that summary is incomplete, outdated, or inaccurate, the first impression is already formed. Traditional SEO alone is no longer enough. Brands now need clear entities, structured content, trusted citations, and authoritative digital footprints that large language models can understand.
That demand has given rise to a new generation of agencies focused on Generative Engine Optimization (GEO). The firms below have invested in research, published methodologies, measurable client outcomes, and practical frameworks rather than simply renaming traditional SEO services.
How We Evaluated These Agencies
1. We looked for agencies that publicly explain how LLMs interpret entities, structured data, citations, and content instead of presenting GEO as another SEO buzzword.
2. Client results mattered. Agencies demonstrating improvements in AI Overviews, ChatGPT citations, or measurable AI-driven visibility received stronger consideration.
3. We evaluated investment in research, proprietary frameworks, experiments, or tools that advance industry understanding of AI search.
4. We considered whether GEO is integrated with technical SEO, digital PR, content strategy, and schema implementation rather than treated as a standalone service.
Finally, we prioritized agencies with credible enterprise or mid-market client portfolios and publicly available case studies.
Several strong B2B SaaS SEO agencies were excluded because their published work remains focused primarily on traditional organic search rather than AI visibility. Agencies with limited client evidence, no documented methodology, or less than two years of proven experience in this space were also left out.
1. Rampiq
The B2B GEO specialist building visibility into pipeline.
Founded in 2016 in Arlington, Virginia, Rampiq was one of the earliest agencies to publicly invest in Generative Engine Optimization before the category became widely discussed. Its AI Search and Visibility Program begins with an audit across ChatGPT, Google AI Overviews, Perplexity, and Microsoft Copilot before improving entity clarity, structured data, citations, technical SEO, and content organization.
The agency has published impressive client outcomes, including more than 850 keywords appearing in AI Overviews, 145% growth in top-three rankings, 367% organic traffic growth for an enterprise IT company, and long-term partnerships lasting more than six years. Rampiq also connects AI visibility directly with pipeline generation through LinkedIn demand generation and attribution reporting. For B2B and SaaS companies that want AI visibility tied to measurable revenue, Rampiq remains one of the strongest specialists in the market.
2. R/GA
The digital experience pioneer building AI-native brand work.
R/GA has spent decades designing digital experiences for global brands including Nike, Google, Verizon, and Beats by Dre. Rather than offering GEO as a standalone service, the agency approaches AI visibility through information architecture, content organization, and customer experience design.
Its leadership regularly publishes research on AI-powered customer interactions and the future of owned media. This makes R/GA particularly attractive for organizations undergoing large digital transformation projects where AI search visibility becomes the natural outcome of stronger digital experiences rather than a separate marketing initiative.
3. VML
WPP’s integrated creative and technology powerhouse.
Created through the merger of VMLY&R and Wunderman Thompson, VML operates across more than 60 markets with thousands of specialists. Its GEO capabilities are deeply connected with commerce, customer experience, creative production, and multilingual content delivery.
VML is especially valuable for enterprise organizations launching AI visibility programs across several countries simultaneously. Its global delivery network allows brands to maintain consistent messaging across multiple languages while integrating AI search into broader marketing and commerce strategies.
4. Publicis Sapient
Enterprise transformation with engineering depth.
Publicis Sapient approaches GEO from a product and engineering perspective rather than purely content marketing. As the digital transformation business within Publicis Groupe, it helps companies improve structured data, APIs, product information, and digital platforms that feed reliable information into AI systems.
Supported by Publicis’ broader creative, media, and AI investments, including Marcel, the agency serves brands such as Mercedes-Benz, Marriott, and McDonald’s. It is particularly well suited for organizations where AI visibility depends on complex digital products rather than traditional websites.
5. Brainlabs
Performance marketing meets AI search.
Brainlabs has become one of the industry’s most vocal agencies discussing AI search behavior and Search Everywhere Optimization. Through its research team, the agency regularly publishes experiments examining prompt behavior, citation patterns, and how AI platforms select information.
Its biggest advantage is integrating GEO with paid media, analytics, and organic search reporting. Brands gain a complete understanding of how AI visibility influences customer acquisition rather than viewing GEO in isolation. This makes Brainlabs an excellent partner for data-driven marketing teams.
6. Tinuiti
Performance media expertise expanding into AI search.
As the largest independent performance marketing agency in the United States, Tinuiti manages billions of dollars in advertising while supporting leading consumer brands including Etsy, Nestlé, and Poshmark.
The agency’s GEO strategy focuses on how AI Overviews influence click-through rates, paid search performance, and retail media. With strong expertise across Amazon, Walmart Connect, Google Ads, and Meta, Tinuiti helps retailers understand how AI search fits within broader commerce ecosystems.
7. Croud
Global multilingual expertise for AI visibility.
Croud combines a central strategy team with a worldwide network of specialists who provide native expertise across different markets. That operating model creates a meaningful advantage for multilingual GEO campaigns.
The agency has published research on AI Overview performance across languages and regions while supporting brands in travel, B2B SaaS, and consumer industries. Organizations expanding internationally benefit from Croud’s ability to adapt entity optimization and content strategies for different markets instead of relying solely on English-language assets.
8. Code and Theory
Editorial expertise applied to AI search.
Code and Theory built its reputation through digital publishing, editorial design, and content strategy before expanding into broader brand transformation. Its experience working with major publishers gives the agency a unique understanding of how information architecture influences AI-generated answers.
Instead of focusing only on rankings, Code and Theory emphasizes structured content, semantic organization, metadata, and editorial quality that large language models naturally understand. This makes the agency an excellent choice for brands that depend heavily on owned media, publishing, and long-term authority.
Picking the Right Partner for the AI Search Era
The agencies leading this category share one important characteristic: they have invested in research, documented methodologies, and measurable client outcomes instead of simply relabeling traditional SEO services.
Global enterprise transformation programs are best suited to agencies such as VML and R/GA. Publicis Sapient stands out for organizations whose AI visibility depends on digital products and engineering. Brainlabs and Tinuiti combine GEO with performance marketing and analytics, making them ideal for consumer-focused businesses. Croud excels in multilingual campaigns spanning multiple regions, while Code and Theory brings exceptional editorial expertise to brands investing in owned media.
For B2B and SaaS organizations seeking measurable pipeline growth alongside stronger AI visibility, Rampiq offers one of the most focused and mature GEO programs available today.
As AI search continues to reshape online discovery, the strongest agencies will be those that can demonstrate how a brand’s representation inside ChatGPT, Google AI Overviews, Gemini, and Perplexity improved through citation tracking, AI visibility reporting, and measurable business outcomes rather than rankings alone.
To read more content like this, explore The Brand Hopper
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