Meet the London duo building a new kind of luxury resale

Known Source’s founders want to elevate secondhand fashion and streetwear to feel like curated retail. Scaling up a side hustle isn’t easy.
Image may contain Adult Person Curly Hair Hair Face Happy Head and Smile
Photo: Known Source

Sign up to receive the Vogue Business newsletter for the latest luxury news and insights, plus exclusive membership discounts.

University friends Theo El-Kattan and Henry McNeill-Njoku were playing football one night in 2019 when they got to scheming about something unrelated to sports. Both experienced thrifters, they envisioned a fashion resale startup that was as curated and elevated as first-hand retail. Soon after, they quit their high-flying careers in medicine and finance to launch Known Source.