Best B2B GEO Agencies in France in 2026: Our Ranking

In B2B, a buyer no longer simply types a query into Google: they ask ChatGPT which is the best supplier, query Perplexity on their sector’s solutions, compare names cited by Gemini. If your company does not appear in these responses, it is absent from the purchasing decision, even before the first commercial contact.

This is the whole challenge of GEO, Generative Engine Optimization, and it is particularly critical in B2B, where decision cycles are long and perceived credibility carries great weight. You still need to choose an agency that truly masters the subject, not just the word. We have compared five, specialised or recognised in AI search for businesses.

Here is the ranking, the specialities of each and the criteria for deciding for yourself.

Key takeaways from this article

• B2B GEO aims to have your company cited in the responses of ChatGPT, Perplexity, Gemini and Claude.
• Five French agencies compared on their actual GEO offer and their relevance for B2B.
• A credible GEO agency must know how to measure your citations in AI engines.
• GEO does not replace SEO: in B2B, authority and perceived reliability are determining factors.
• No serious agency guarantees a position in generative responses.

What is a B2B GEO Agency?

A GEO agency optimises your visibility in the generative engines based on artificial intelligence. Whereas an SEO agency seeks to rank you in a list of links, a GEO agency seeks to make your content a source that AI selects and cites. In B2B, this changes the game: your prospects make heavy use of ChatGPT to frame their supplier searches, often before speaking to a salesperson.

The work covers content structure, structured data, brand entity consistency and authority signals. It relies on a solid SEO SEO foundation: without it, no AI will find your pages. The B2B specificity lies in the nature of the valued content — white papers, expert guides, case studies — which builds trust in the models.

Definition: GEO

GEO (Generative Engine Optimization) encompasses the practices aimed at having a brand cited in AI-generated responses: ChatGPT, Perplexity, Gemini, Claude or Google’s AI Overviews. It complements traditional SEO by adapting to conversational search, where the user expects a direct response citing its sources.

The Ranking of the Best B2B GEO Agencies in France

1. Doko: B2B GEO Backed by Certified Google Expertise

Based in La Mulatière, on the doorstep of Lyon, but operating throughout France, Doko has been supporting its clients since 2013. The agency is Google Partner Premier, a distinction reserved for the top 3% of Google partners, and has built a structured GEO offer, with dedicated variants for B2B GEO and ChatGPT search ranking.

Its distinguishing feature for businesses: Doko handles SEO, GEO and GEA, advertising in AI engines, which few agencies master. Everything rests on a complete technical foundation, from on-site SEO to expert content production, with a dedicated consultant per project and a systematic audit before any recommendation. Ideal for SMEs and B2B players who want an integrated approach rather than an isolated GEO service.

2. Webconversion: The Most Developed B2B GEO Offer

Based in Lyon and operating nationally, Webconversion is one of the pioneering GEO agencies in France, with a dedicated offer structured as early as 2025. Its method covers a wide range of engines, from ChatGPT, Perplexity and Gemini through to Claude and Copilot, and explicitly targets B2B companies in the SaaS, industry, IT, consulting and telecoms sectors. GEO audit, GEO netlinking and performance measurement: a very serious competitor, arguably the most B2B-specialised in this selection.

3. Triaina: Pure AI Specialisation

Triaina, a Paris-based agency, is one of the rare structures to define itself first by AI optimisation, which it calls GSO (Generative Search Optimization). Its positioning is clear: organic search and visibility in generative engines, with audit and strategy. A good choice for a B2B company that favours a 100% AI-focused agency, operating remotely.

4. Optimize 360: National Coverage and the 360 Approach

Founded in 2012, Optimize 360 presents itself as a 360-degree visibility agency, a GEO pioneer in France since 2023, with more than 500 clients and eight offices in France and Switzerland. It covers SEO, GEO, SEA, social media and e-reputation in-house, with a senior consultant per client. Its strength is scale and territorial presence; its holistic approach suits businesses that want to centralise all their channels, beyond GEO alone.

5. Luneos: GEO Integrated into a Growth Logic

A growth-oriented digital agency, Luneos integrates GEO into a search strategy focused on performance and conversion. It carries out an enriched GEO audit, structures pages for LLMs and relies on in-house developers for the technical side. Its growth profile targets businesses, both e-commerce and B2B, that want to capitalise on their organic traffic by combining SEO and generative engines.

Comparison Table of B2B GEO Agencies

The Criteria That Separate a Real GEO Agency from an Opportunist

GEO is so recent that any agency can claim it overnight. In B2B, where the financial stakes of a contract are high, choosing the wrong provider is costly. To establish this ranking, we set aside declarations of intent in favour of verifiable signals. Three questions allow you to sort quickly.

• Does the agency actually test AI visibility? querying ChatGPT, Perplexity and Gemini on target queries, measuring the share of citations: without this practice, there is no steering, only convictions.
• Does it know how to structure content to be cited? sourcing, perceived reliability, structured data, response format. This is an editorial and technical skill, not simple window dressing.
• Does it master the SEO foundation? generative engines draw from the indexed web. An agency that promises GEO without mentioning indexing or technique is selling a facade.

We also looked at longevity, B2B specialisation, coverage of different engines and public client reviews. A necessary transparency: this article is published by Doko, which therefore appears at the top as the publisher. The criteria above are stated before the ranking and anyone can compare them against the cited agencies’ websites. This is precisely what we recommend doing.

How to Choose Your B2B GEO Agency?

Beyond the ranking, a few reflexes avoid poor choices in a B2B context.

• Request an AI visibility audit: where is your brand cited today, on which business queries, against which competitors?
• Check sector expertise: the GEO of a SaaS publisher is not the same as that of an industrial company. Understanding your market matters.
• Ask about measurement: how do they track your citations over time? The answer reveals their actual maturity.
• Avoid position promises: there is no first place in a generative response. Any guarantee of this type is a warning sign.
• Compare like for like: our benchmark on the cost of SEO helps decode quotes.

Doko, Your B2B GEO Partner

If our approach resonates with you, let’s talk. We start by measuring your current presence in AI responses on your business queries, then we identify the content to transform into citable references, treating search engine optimisation in the AI era and SEO together. In B2B, the two cannot be managed separately.

We work on real data, we document every intervention and we measure its impact, without promising miracles. Want to be cited when your prospects query AI? Request a quote and compare us with others.

FAQ: B2B GEO Agencies in France

Why is GEO Particularly Important in B2B?

Because B2B buyers make heavy use of AI to frame their supplier searches, often before any commercial contact. Being cited in these responses places your company in the list of solutions under consideration from the outset.

Does GEO Replace SEO in B2B?

No, it complements it. Generative engines draw from the indexed web, so a solid SEO foundation remains indispensable. In B2B, authority and perceived reliability, nourished by expert content, are particularly determining.

Should You Choose an Agency Specialised in Your Sector?

It is a real advantage in B2B. The GEO of a SaaS publisher, an industrial company or a consulting firm does not mobilise the same content or the same queries. An agency that knows your market will go faster and more accurately.

Can You Guarantee Being Cited by ChatGPT?

No. No agency controls language models, and responses vary from one query to another. An honest agency commits to a method, optimisations and citation tracking, never to a position.

How Much Does a B2B GEO Service Cost?

Budgets are close to those of SEO, with monthly packages often starting at around €1,000 depending on the size of the site and the market. An AI visibility audit can be invoiced separately. Always compare like for like.