France’s smallest programmatic media company
Big ambitions for the Open Web.
GreyFox Ads is built around one person: Max Legrand. A programmatic advertising expert, one dedicated point of contact, and one conviction: high-quality French Open Web inventory can deliver real value for advertisers.
Stay small.
Deliver tailored solutions.
GreyFox Ads is not trying to become another large, generalist media sales house. The goal is to remain independent, highly specialised, and close to our clients.
No management layers. No off-the-shelf sales pitch: the person presenting the solution is also the one who understands your brief, designs the activation, and oversees its execution.
A small company does not mean limited capabilities: curation technology provides access to a wide range of inventory and targeting options.
1 expert.
1 point of contact.
Tailor-made solutions.
One speciality: selecting and unlocking the value of quality Open Web inventory for brands. A lean organisation built for agility, responsiveness, and cost control.
Read the article: “France’s smallest programmatic media company” (in French)
Why work with an independent programmatic partner?
🎯 Focused expertise
One mission: make Open Web programmatic investment more efficient, simpler, and more transparent.
🤝 Direct access
One dedicated contact for strategy, execution, consulting, and campaign follow-up.
🧩 Truly tailored solutions
No one-size-fits-all solution: every activation is designed around the client’s needs.
⚡ Agility
Fast decisions and the flexibility to adapt without corporate bureaucracy.
🔎 Transparency
Clear explanations of technical choices, supply paths, and the full cost chain.
🌍 A vision for the Open Web
Support quality publishers and environments rather than practices that undermine the medium.
Max Legrand.
Over 15 years in digital advertising.
Before founding GreyFox Ads in 2024, Max worked on both sides of the advertising ecosystem: first on the buy side at agencies, then with publishers and monetisation platforms.
At Starcom, he managed programmatic campaigns for advertisers. At ESV Digital, he led the programmatic division. Then, for over six years at Alliance Gravity, he supported publishers, developed programmatic operations, and worked on yield management and SSP technology.
That combined buy-side and sell-side experience underpins one belief: a good programmatic solution must deliver value to advertisers without overlooking the publishers who create the content.
IPG Mediabrands and Marco Vasco: paid search, paid social, and acquisition.
Programmatic campaign strategy, activation, and optimisation.
Led the programmatic offering and operations.
Publisher partnerships, programmatic operations, and yield management.
Independent programmatic media services and curation consulting.
Because the Open Web deserves better.
Digital advertising is increasingly concentrated around large platforms. Meanwhile, certain programmatic practices—too many intermediaries, low-quality inventory, and opaque costs—are eroding buyers’ trust.
Yet French Open Web publishers create content, attract audiences, and offer brands environments that deserve greater recognition and investment.
GreyFox Ads was founded to put this belief into practice: curated supply, MFA exclusions, supply path optimisation, cookieless-ready targeting, attention signals, and transparent costs.
The Master Deal GreyFox Ads turns that approach into a straightforward activation for media traders. Ourcuration consulting services also help publishers, media sales houses, and AdTech companies tackle their own challenges.
First, we had to earn trust.
At launch, GreyFox Ads had the expertise and the product, but limited brand recognition. The first months of outreach made one thing clear: a strong technical solution alone is not enough to earn a media buyer’s trust and budget.
The answer was to keep improving the Master Deal while also sharing programmatic insights openly, using clear explanations, humour, and illustrations.
That led to a series of LinkedIn posts: unpacking complex topics, challenging assumptions, and contributing to the debate about the Open Web.
After seven months, the initiative had generated over 300,000 impressions across 100+ posts. Beyond the numbers, it showed a genuine appetite for clarity in our industry.
cumulative LinkedIn impressions after seven months of publishing.
posts explaining and debating programmatic advertising.
Sharing expertise beyond campaigns.
Through analysis, trade publications, and conversations with industry peers, GreyFox Ads contributes to the discussion about the future of the Open Web and programmatic advertising.
Grow in expertise, not complexity.
GreyFox Ads does not aspire to become another generalist media sales house. Our ambition is to remain a small, independent, expert, and approachable business, able to build tailored solutions for clients.
Fewer generic promises. More listening, technical expertise, and measurable results.
Would you rather work with David than Goliath?
Whether you are an agency, advertiser, publisher, or AdTech company, let’s talk about your programmatic challenges—without the unnecessary jargon.
Contact GreyFox AdsContact form currently available in French.