Poshmark corporate office address is 203 Redwood Shores Pkwy, 8th Floor, Redwood City, California 94065, United States. There are other offices in India, Canada, and Australia. For users in India, the address is KRM Plaza, South Wing 2 Harrington Rd., 6th Floor, Chennai, India 600 031. The Poshmark corporate office addresses in Canada and Australia are 312-151 W Hastings St, Vancouver, British Columbia V6B 1H4, Canada and 223 Liverpool St, Darlinghurst, New South Wales 2010, Australia.