Buttermilk

Founded in 2016 and based in London, Buttermilk Agency runs influencer marketing and content campaigns with a clear focus on fashion, beauty, and luxury brands. The agency builds what it calls multi-tiered creator programmes, typically combining nano and micro creators with brand fans to generate UGC, drive awareness, and sustain always-on community activity across social platforms. Clients include Armani Beauty, Estée Lauder, Prada Beauty, Marc Jacobs, Gap, Moschino, Mugler, and Primark. A Primark campaign to support newly opened US stores activated 480 creators, exceeded content output targets by 173%, and won Gold for best always-on influencer campaign at the Partnership Awards. For Armani Beauty, creator posts from Alix Earle and Kate Holmes Peterson generated 20 million and 22 million views respectively. The agency reports activating more than 20,000 creators annually across its client base.