Ef Advisory©
Paris • New York

Creative Projects
Direct-to-Consumer
All Partners

ABOUT

(The studio)


Ef Advisory is a brand growth studio based in New York, working with brands across the US and Europe at the crossroads of culture, community and technology. We combine social media and CRM strategy, campaign design and AI-powered creative production to help brands build a community they own and turn it into lasting growth.
Social platforms are rented land. Algorithms change, reach drops, and followers rarely become customers on their own. We help fashion, lifestyle, sports and entertainment brands build direct, meaningful relationships with their audience, and design campaigns that capture, engage and convert: product launches, drops, collaborations, activations and drive-to-store moments.
Our approach covers the full journey, from strategy and campaign mechanics to content, acquisition, re-engagement and performance. Creativity sits at the heart of everything we do, and generative AI lets us concept and produce at the speed of culture without compromising on quality.



BIOGRAPHY




Behind Ef Advisory is Erwan Ferriere, a French entrepreneur and strategist based in New York, who has spent more than 10 years building brands at the intersection of creativity, community and technology.

Erwan started his career as a founder. He co-founded N.D.G Studio and grew it organically from zero to $2M in annual revenue, with no outside funding for growth. The brand was carried by some of the best stores in the world and worn by the people who set the tone in fashion. That experience taught him what really drives a brand: a clear identity, a loyal community, and an audience that feels personally connected to it.

He then brought that founder's instinct to tech. As employee #3 at Drop, a pioneer in social CRM, Erwan helped shape a new category: turning social media audiences into owned, one-to-one customer relationships at scale. There, he built partnerships and designed campaigns for brands such as PSG, Givenchy, Decathlon, Nespresso, Courir, American Vintage, Universal Music, Hot Topic and Paris Basketball, across Europe and North America.

Creativity has always been part of how he works. As generative AI emerged, Erwan naturally brought it into his process, using it to concept and produce content for brands and to push campaigns further, faster.

Founder, strategist and creative, Erwan has always stayed ahead of how brands connect with people. Today he brings all three together to help brands grow with the same energy, precision and cultural sense he built his own on.


@ererwan
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