Top AI SEO agencies: five teams that change different parts of the work

A demand generation lead asks an AI assistant to describe their own product category. The answer that comes back names four competitors, describes the category in terms they would never use, and does not mention their company at all. Searches for top AI SEO agencies usually start right about there. What comes back is another wall of lists, mostly the same names in a different order. Almost none of them say which part of the work an agency actually changes once you sign.

Most agencies lean harder on one of three layers

The five agencies below sit at different points on that scale. In practice, AI visibility work moves three things:

• the content itself, so a model can lift a clean answer out of it
• the technical layer, so crawlers and renderers can read the page at all
• the off-page layer, the mentions and references elsewhere that tell a model who your brand is

Most agencies touch all three. Where the weight falls is what separates them, and that is easier to check than a ranking.

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Seeders

Seeders runs SEO, GEO, link building, digital PR and advertising, and works across 50+ markets. Its GEO service leans toward the off-page side, with brand mention acquisition, structured data on platforms such as Wikidata and Crunchbase, and entity building. Its SEO and link building work is also sold white label to other agencies. For a category that assistants keep getting wrong, the GEO work at seeders.com starts with an audit of how those tools describe the brand.

Croud

At Croud, the AI search work belongs to a wider organic performance offer. The agency combines 600+ in-house digital experts with a global on-demand network of 2,900 marketing specialists, working from London, Shrewsbury, New York, Atlanta and Dubai. Its own tool, BrandCI, measures how a brand comes back in the answers that large language models give. Technical SEO, content built for answer engines and digital PR amplification all fall under the same offer.

Peak Ace

From Berlin, Paris and Nantes, Peak Ace delivers work in 25+ languages. LLM consulting is listed as a separate service alongside SEO, content, digital PR and paid media. The agency analyzes where a brand shows up in LLM responses and where it does not. Content is then structured with schema markup and answer-first formats so those systems can cite it. Brand monitoring across AI assistants runs in parallel, and a third strand covers data analysis and content production.

Impression

Four service areas make up the GEO offer at Impression: brand building, content strategy, technical GEO and LLM visibility reporting. The technical part is spelled out in most detail. It covers crawlability, indexing, rendering, semantic HTML and Core Web Vitals, so generative models can parse the page. Reporting tracks citations, mentions and sentiment across ChatGPT, Perplexity and Gemini. Nottingham is where the agency started, and there are teams in London, Manchester and New York.

TUYA Digital

TUYA Digital works out of Bucharest and is an SEO and GEO agency. Its definition of generative engine optimization sits on the content layer, optimizing text so that AI picks it up in generative results and answers. The agency says it was the first in Europe to offer the service. Content writing, web design, conversion rate optimization and paid search surround it. The company reports more than a decade in business.

Build the shortlist around the layer you are weakest in

A shortlist works better when it starts from your own site than from a ranking. Ask an assistant to describe your category, then note why the answer misses you. Your pages may say nothing quotable, they may not be crawlable, or nobody outside your domain may mention you. That answer tells you which of the three layers to buy first. Then ask each agency on the list who does that layer in house, in which languages, and how they will show you it moved. An agency that has a straight answer to all three belongs on the shortlist.