Stefani O’Sullivan is the Founder & CEO of SOS Consulting Group, a strategic consultancy dedicated to elevating female-founded brands through data-driven marketing, business strategy, and operational excellence. With over 13 years of leadership experience spanning luxury, fashion, and e-commerce, Stefani has spearheaded growth initiatives at Chanel, Moda Operandi, Savage X Fenty, STAUD, Meshki, and The Mayfair Group, transforming brand presence and revenue performance. Leveraging her deep expertise in marketing technology, consumer acquisition, retention, and organizational development, she builds high-performing teams and implements scalable solutions that drive sustainable business growth.
Recognizing a gap in the market—where many small businesses overspend on digital agencies without achieving real results—Stefani founded SOS Consulting Group to bridge this divide. By offering cross-functional leadership expertise in marketing, growth, finance, and product strategy, her team helps brands scale efficiently while optimizing operations for long-term success. Her ability to identify business challenges, ask the right questions, and execute practical solutions makes her a sought-after advisor for both emerging and established brands navigating today’s competitive landscape.