What are the 5 best GEO agencies in France in 2026?

Two years ago, almost no one was talking about GEO. Today, most SEO agencies have added a "visibility in AI" line to their offerings, and new agencies are being created solely around this topic. For a company that wants to appear in responses from ChatGPT, Perplexity, or Gemini, the choice is vast, and the differences in methodology are significant.

We have selected five French agencies that offer a real GEO service, described on their website, with identifiable methods and deliverables. Growth Room tops the list: it is our agency, and we explain below what sets us apart. The other four agencies are serious players, each with a different profile.

Key takeaways

• Our 2026 selection: Growth Room, Noiise, SEO Monkey, Agence Onze, and SEO.fr.
• A good GEO agency works on brand entity, structured data, content, and prompt tracking.
• The priority KPI to track: your brand's share of presence in your market's prompts.
• Public rates hover around €500 to €650 excluding tax per consultant day.
• GEO complements SEO: no serious agency will ask you to choose one or the other.

What is a GEO agency?

A GEO agency (Generative Engine Optimization) helps a brand be understood, referenced, and cited by answer engines: ChatGPT, Perplexity, Gemini, Claude, or Google's AI Overviews. SEO aims for a spot in a list of links. GEO aims for a mention within the response itself.

The work is based on four pillars:

• the consistency of thebrand entity across the web (website, listings, profiles, external mentions);
• tagging with structured data, so that AIs know who you are and what you sell;
• content written to be extracted: direct answers, tables, FAQs, and sourced figures;
• monitoring a panel of prompts, to measure if and how AIs talk about you.

How did we choose these GEO agencies?

We only selected French agencies that meet the following criteria:

1. An explicit GEO offering on their website, with a described methodology.
2. Identifiable deliverables: audits, optimization, and monitoring.
3. Client references or published results.
4. Sufficient public information for you to verify what we have written.

All information was gathered from the agencies' official websites in September 2026. To evaluate the technical aspect of a proposal, our article on structured data to prioritize for AI indexing lists what a GEO agency should be able to implement.

What is the comparison of the 5 best GEO agencies in France?

What are the best GEO agencies in France in 2026?

1. Growth Room: GEO linked to Ads and CRM

At Growth Room, GEO is part of a three-pronged acquisition stack: Ads (including ChatGPT Ads), GEO, and Sales Ops connected to the CRM. We do not sell GEO as an isolated project, because a mention in ChatGPT only has value if it ultimately generates leads.

Our GEO method makes your brand readable, verifiable, and citable by answer engines :

• a consistent entity across the entire web;
• structured data on the pages that matter;
• content formulated to be extracted by AI;
• a measured presence on prompts within your category, using a core metric: share of presence.

We apply this method to our own site and invite our prospects to verify the results by asking ChatGPT themselves.

Our difference lies in measurement. We track visibility in AI all the way to the CRM, just as we do for all our channels. For Airties, an international telecom company, we launched Google Ads and LinkedIn Ads, then overhauled their HubSpot reporting to link every marketing action to its commercial impact: 150 leads in 3 months for Airties, including 30 MQLs, with a cost per MQL 9 times lower than the target in the final month. At Headn, the HubSpot CRM we built manages over 31,000 contacts and 2,500 leads per month, with 15 dashboards. We apply this same rigor to GEO.

• Clients: Devialet, Toyota, Poiscaille, IonQ, Quantinuum, Le Fooding, Figaro Classifieds.
• For whom: SMEs, startups, and scale-ups that want GEO to drive acquisition, not just brand awareness.

2. Noiise: the agency awarded for its GEO campaign

Founded in 1999, Noiise has approximately 125 consultants spread across Paris, Lyon, Marseille, Nantes, Lille, Aix-les-Bains, and Montpellier. The agency covers SEO, SEA, social media, content, website creation, and PR.

Its GEO offering includes an audit, strategy, and tracking tools. Noiise was awarded for the best GEO campaign in 2026, following previous awards for its SEA (2024) and SEO (2022) campaigns, and holds a 4.9/5 rating on Google.

• Clients: Club Med, Leroy Merlin, Les Arcs, Vertbaudet, Valrhona.
• Best for: B2C brands and major accounts looking for a multichannel agency with a regional presence.

3. SEO Monkey: GEO billed by time spent

SEO Monkey has supported over 400 companies and has offices in Paris, Lille, Lyon, Marseille, and Montpellier. Their GEO offering is summarized as: "We get your brand referenced in artificial intelligence responses."

The method follows three steps: content audit, semantic structuring and tagging, and prompt testing to measure impact. Pricing is transparent: €500 per day, adjusted based on content volume. The agency reports measurable initial results within 1 to 2 months.

• Other expertise: SEO, paid media (Google, Meta, Amazon, TikTok, etc.), creative studio, and data.
• Best for: E-commerce, SaaS, and lead generation sites looking for clear, predictable budgets.

4. Agence Onze: GEO by senior SEO consultants

With offices in Paris, Lyon, and Lille, Agence Onze operates with a small team of exclusively senior SEO consultants. Their "GEO & AI Search" offering focuses on positioning on LLMs like ChatGPT and Perplexity as an extension of core SEO work.

The agency relies on over 10 internally developed tools, charges a daily rate of €650 for its senior profiles, and guarantees "0% AI slop," meaning no mass-produced AI content.

• Clients: Superprof, Sortlist, Heytens, Amphibee.
• Best for: High-stakes SEO sites looking to evolve their strategy toward GEO with seasoned experts.

5. SEO.fr: A six-step GEO method

Based in Guyancourt, near Paris, SEO.fr highlights its dual expertise in SEO and AI. Their GEO support follows six steps: audit and diagnosis, brand mention strategy, content optimization for citations, authority building, technical optimization, and monitoring.

For monitoring, the agency uses its own tool, the AI Visibility Checker. In addition to GEO, they offer SEO, Google Ads, SXO, analytics, hosting, and website creation.

• Best for: SMEs looking for a single provider for their website, SEO, and AI visibility.

Which GEO agency should you choose based on your profile?

How much does a GEO agency cost in France?

Two agencies in this ranking publish their rates: SEO Monkey charges €500 per day, and Agence Onze charges €650 per day for its senior consultants. The others provide quotes based on the project scope.

The budget primarily depends on three factors:

• the scope of the initial audit (number of pages, brands, and markets);
• the volume of content to be produced or rewritten;
• the frequency and extent of monitoring (number of prompts, AI engines, and languages).

A GEO audit alone takes a few days of work. A full-service engagement, including content production and monthly monitoring, spans several months. The most important thing is knowing what you receive each month and how the results are measured.

What questions should you ask a GEO agency before signing?

• Which prompts will you track, on which AI engines, and how often?
• How do you measure my brand's share of voice, and with what tool?
• What exactly do I receive in the first month?
• Will you produce the content, or just provide recommendations?
• How do you connect AI visibility to my leads and CRM?
• Can you show me an actual report, even if it's anonymized?

Be wary of promises of a "first-place ranking on ChatGPT": AI responses vary based on the user and context, so no one can guarantee a specific spot.

The GEO that matters is the one that ends up in your pipeline

Being cited by ChatGPT is nice. Knowing how many meetings that citation brought you is more useful. That is why we treat GEO with the same tools as our paid campaigns: a panel of prompts tracked every month, data connected to HubSpot, and decisions based on leads rather than screenshots. If you want to know what AIs are saying about your brand today, we can conduct this initial assessment with you as part of our AI marketing consulting.