Sephora Customer Service Phone Numbers Customer service: 1-877-737-4672 TTY: 1-888-866-9845   Sephora Headquarters Info, Email, Phone number, Website and live chat Information Founded: 14 August 1969; 48 years ago Founder: Dominique Mandonnaud Headquarters: Paris, France Areas served: Worldwide   Sephora is a French-founded chain of personal care stores that operate multi-nationally founded in Paris in 1969.