What Is a GEO Agency?
A GEO agency specializes in Generative Engine Optimization — the discipline of improving how a brand appears inside AI-generated answers. Where a traditional SEO agency optimizes for Google's ranked links, a GEO agency optimizes for citations and recommendations in conversational AI. For a full definition of the field, see our guide on what Generative Engine Optimization is.
The terms GEO agency, AEO (Answer Engine Optimization) agency, and AIO agency are used almost interchangeably. They all describe the same goal: making sure that when a buyer asks an AI assistant a question in your category, your brand is the one that gets named.
What a GEO Agency Actually Does
A credible GEO agency runs a repeatable loop of measurement and action:
- Measure visibility. It quantifies how often the brand is mentioned in AI answers, across which assistants, and against which competitors.
- Map the sources. It identifies the publications, forums, and review sites AI assistants cite for the brand's category (source intelligence).
- Find the gaps. It compares the sources competitors are present on against the ones the brand is missing from.
- Act. It earns presence on those trusted sources and restructures owned content and product data so LLMs can quote it.
- Report. It tracks citation rate and share of voice over time so progress is visible to non-technical stakeholders.
Deliverables to Expect
A serious engagement produces concrete, recurring deliverables — not a one-off slide deck:
| Deliverable | What it answers |
|---|---|
| GEO audit | Where do we stand in AI answers today? |
| Source gap analysis | Which sources does AI trust that we're missing from? |
| Prioritized action plan | What should we do first for the biggest impact? |
| Monthly SOV report | Is our share of voice growing vs competitors? |
| Content & PR roadmap | What to publish, and where, to earn citations. |
How Much Does a GEO Agency Cost?
In France and Europe in 2026, GEO engagements typically range from a few thousand euros for a one-time audit to monthly retainers of €2,000–€8,000+ for ongoing measurement, content, and PR. Pricing depends on the number of categories tracked, the depth of source work, and whether the agency includes its own monitoring tooling or bills it separately. Always confirm what is and isn't included before signing.
The GEO Agency Market in France (2026)
The GEO agency market in France is nascent but fast-moving. Community discussions on forums like r/AskMarketing highlight several agencies already positioning around Generative Engine Optimization: Stafe (positioning as a pioneer with roots in AI SaaS), Eskimoz (transitioning from SEO to GEO), Genn (a "pure player" focused 100% on GEO), and Redd Agency. The community consensus: GEO is currently "artisanal" — harder to measure than traditional SEO because AI systems don't have fixed positions like search result pages.
This measurement challenge is exactly why an independent platform matters: before engaging any agency, you need a credible baseline. Without one, there is no reliable way to evaluate whether an agency's work is actually moving the needle.
Agency vs In-House: Which Is Right for You?
An agency makes sense when you need outside content and PR capacity or lack internal time. But the measurement and action layers are now productized: with a dedicated platform such as Estran, an in-house marketing team can run the same loop — multi-LLM tracking, source intelligence, competitor share of voice, and a ranked action plan — without a retainer. Many brands combine both: the platform for measurement, an agency for execution.
If you're evaluating providers, read our independent comparison of the top GEO agencies in France before you commit.
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Guillaume Orset-Prelet
Co-founder, Estran
Building the GEO/AEO platform for product brands. Helping marketing and commerce teams measure and improve how their brand is cited in ChatGPT, Gemini, and Perplexity.