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ChatGPT Ads starts at a €2,500 monthly media budget; GEO and AI Sales Ops are quoted following a mapping of your AI presence. Our team is a certified Google Partner, Meta Business Partner, HubSpot Platinum, LinkedIn Ads, and Klaviyo partner.
AI marketing isn't about "putting AI everywhere." It's about adapting your acquisition to three specific shifts in your customers' behavior.

A growing share of purchasing decisions begins with a question to ChatGPT, Perplexity, or Gemini: "what tool for...", "which agency for...", "how does X compare to Y". If your brand doesn't appear in or under the response, you don't exist at that moment.

Answer engines don't rank pages; they choose entities: brands that are consistent, verifiable, and documented across the web. Since August 2026, ChatGPT has also been displaying ads below its responses. Being cited and being recommended are two distinct levers that must be worked on together.

AI agents can research an account, detect a buying signal, draft and follow up on personalized outreach, and push it all into your CRM. They cannot decide on your target, judge a message, or close a deal. That is where the human element remains.

"100% automated" acquisition, leads "generated while you sleep," a guaranteed spot in ChatGPT responses. No one can promise that, and those who do lack tracking. What we do promise: a connected, measurable stack, with decisions based on hard data.
Three levers, three Growth Room departments already in motion, and one single pipeline in your CRM. Activate one, two, or all three depending on your stage of growth.
We create and manage your ChatGPT Ads campaigns within OpenAI Ads Manager (conversational targeting, pixel, Conversions API), and we leverage AI from traditional ad platforms (Performance Max, Advantage+, Smart Bidding) with the discipline they require: clean conversion signals. Our goal: to make your brand the one recommended under the response, at the lowest cost per conversion.

GEO makes your brand readable, verifiable, and citable by answer engines: a consistent entity across the web, structured data, content formulated for extraction, and a measured presence in the prompts that matter. Growth Room applies this method to its own site: put it to the test on ChatGPT.

We design your prospecting as a system: targeting and scraping, enrichment, and AI agents that research every account, detect signals (funding rounds, hiring, tech stack changes), and draft personalized email and LinkedIn sequences, all orchestrated and connected to HubSpot. Your sales team receives qualified meetings, not just lists.

Goal: acquisition that follows your customers wherever they are today. Based on data, not intuition.
Rose and Pauline define each AI stack with you, supported by Growth Room's GEO and Outbound departments.
We aren't magicians. We simply harness the power of data multiplied by our expertise in Growth Marketing. Here is what sets us apart:
With an AI stack, this is even more critical: an agent or bidding algorithm fed with incorrect signals will quickly optimize toward poor results.
Our four departments (Ads, SEO & GEO, Outbound, HubSpot) work on the same accounts, making a 360-degree approach possible without juggling multiple providers.
"It's better to be a big fish in a small pond than a small fish in a big one." Growth Room is currently in the sweet spot: experienced enough to provide top-tier expertise and excellent service (communication, processes, project management, meeting deadlines), yet still small enough to be agile. Every company we support is treated as the one that keeps the agency running. You'll see, the team's responsiveness and flexibility in advertising support are second to none.

While we wait for the first full AI stack case studies (ChatGPT Ads campaigns and prospecting agents are currently in progress), here is what our method delivers across every channel.
No fake testimonials, nothing more authentic than a view in our inbox to know what our companies think of the Growth Room team.

An AI Marketing agency adapts your acquisition strategy to how AI has changed the buyer's journey: your customers ask ChatGPT or Perplexity for advice, answer engines choose who to cite, and prospecting can be orchestrated by agents. Growth Room covers all three dimensions with a stack connected to your CRM: AI Ads, GEO, and AI Sales Ops.
Growth marketing is the method: test, measure, scale. AI marketing is the application of this method to channels and tools born from AI. At Growth Room, the AI stack is managed with the same tracking and testing discipline as our Google Ads or LinkedIn Ads campaigns.
Three levers that can be activated separately or together: advertising on and via AI (ChatGPT Ads, Google and Meta's AI ad platforms), GEO to be cited in AI search engine responses, and AI Sales Ops (prospecting agents connected to HubSpot). Growth Room sets up the tracking, orchestrates the tools, and manages the entire process based on cost per opportunity.
An agent receives a target and signals to monitor, researches each account, writes a personalized outreach message, sends it via email or LinkedIn, and follows up. Every interaction is logged in your CRM. Growth Room designs the target, the guardrails, and the sequences; the agents execute; your sales team receives qualified appointments.
No, it complements it. SEO remains essential for Google; GEO works on how answer engines understand and cite your brand. Growth Room handles both with the same team. See our GEO agency page.
No. We first map out your AI presence and the state of your CRM, then we activate what makes sense for your sales cycle: an e-commerce business often starts with ChatGPT Ads, while a B2B scale-up typically begins with GEO and agent-based prospecting.
It depends on the levers activated. For ChatGPT Ads, Growth Room recommends a minimum media budget of €2,500 per month. For GEO and AI Sales Ops, costs involve fees and tools, which are calculated after an initial assessment.
Four criteria: true mastery of tracking and CRM, hands-on experience with intent-based ad platforms, a demonstrable GEO method showcased on the agency's own website, and transparency regarding what is automated and what is not. Growth Room, a Growth Marketing agency in Paris, brings these four pillars together and offers an AI acquisition stack connected to HubSpot.