What the agency covers

Specialties, industries served, and platforms mastered.

Specialties

GEO
Custom web development
AI integration
Technical audits
Content production

Industries served

Small businesses
SMEs
Media
B2B

Platforms supported

Laravel
PHP
Node.js
Nuxt.js

The Developr method

The stages the agency takes you through to grow your AI visibility, from diagnostic to ongoing monitoring.

01

GEO pre-audit

Developr analyses your visibility on ChatGPT through 5 targeted prompts and tells you exactly where you stand against your competitors. Outcome: 3 concrete recommendations to start acting on, for free.

02

Full GEO audit

Developr pinpoints exactly why your competitors appear in ChatGPT's answers instead of you and delivers a complete site diagnostic. You walk away with two actionable roadmaps, technical and content, to turn the tide.

03

Execution

Two distinct blocks to execute the strategies coming out of the audit, purchasable separately depending on your priorities. Developr turns technical recommendations into implementation-ready specifications for your team, and produces 10 GEO-optimised articles in a week. Technical or content, you choose what you need now.

04

Monthly monitoring

Developr tracks your GEO visibility every month, adapts the strategy as ChatGPT evolves and produces content on every opportunity identified. Reddit actions and backlink work are integrated to keep reinforcing your authority with AI engines over time. Your share of voice grows every month, with no commitment.

Developr, in brief

What the team does, how they work, who they're for.

Developr is a web agency with 3 complementary expertises for your projects: custom development, AI integration and GEO. They support small businesses, SMEs and media outlets with a pragmatic, needs-driven approach.

How Developr uses Mentionable

Developr uses Mentionable as the measurement layer for its GEO engagements. The platform tells the team where a brand is cited (and where it is not) on ChatGPT, Gemini, Perplexity and Claude, prompt by prompt. Instead of guessing which topics to write about, the agency starts every project from the questions a brand should be ranking on and works backwards into a technical and editorial plan.

The principle behind the work is simple: AI engines do not cite the best-ranked URLs on Google, they cite the brands they consider trustworthy. Mentionable provides the signal Developr needs to know whether trust is being built, where competitors are pulling ahead, and which new prompts are entering the conversation.

A web agency first, a GEO agency second

Developr is not a pure-play GEO shop. The team is, at its core, a custom web development agency working on PHP/Laravel, Node.js and Nuxt.js, with France Num Activator status. That foundation matters for GEO: most visibility problems are technical before they are editorial. Slow pages, missing structured data, a broken site architecture or an inaccessible content tree will keep an LLM from understanding (and therefore citing) a brand, no matter how good the content is.

Because Developr builds the underlying platforms it optimises for, the agency can fix what it diagnoses rather than handing a list of recommendations to another team.

Beyond GEO

Beyond GEO, Developr has shipped custom platforms for clients including MesOpinions (high-traffic civic platform), LSDJ (independent media), Esteka Data (custom extranet) and Fondation AnBer (custom intranet). That portfolio matters for a GEO partner because performance and structured data at scale are exactly what makes a site citable by an LLM today.

Who they're a fit for

Small businesses, SMEs and media outlets that want to add AI visibility as a real channel and depend on organic traffic. Organisations that already have a sound technical base and want to layer GEO on top, or that need to rebuild the platform itself before content work makes sense. Developr operates in French and English, mainly with French and European clients out of Lille.

What an engagement looks like

Engagements typically start with the free pre-audit, move into a full audit when the client wants to commit, then split into an execution pack and a monthly monitoring contract. The agency can work inside the client's Mentionable account or its own, and contact runs directly through Rémy at [email protected].