Barneys Warehouse is an American fashion retailer headquartered in New York City. Barneys Warehouse is owned by Barneys New York and began in 1970 as a semi annual sale that offered large discounts on designer clothing. Barneys Warehouse now has 11 brick and mortar stores and launched an e commerce web site in 2013.there is a rich collection in Marni, Derek Lam, Proenza Schouler, Rag & Bone, Chloé, Isabel Marant, John Varvatos, 3.1 Phillip Lim, and Marc by Marc Jacobs.Barneys Warehouse is an American fashion retailer headquartered in New York City. Barneys Warehouse is owned by Barneys New York and began in 1970 as a semi annual sale that offered large discounts on designer clothing. Barneys Warehouse now has 11 brick and mortar stores and launched an e commerce web site in 2013.there is a rich collection in Marni, Derek Lam, Proenza Schouler, Rag & Bone, Chloé, Isabel Marant, John Varvatos, 3.1 Phillip Lim, and Marc by Marc Jacobs.