| | | | | | | | |
| Subsidiary | | Location |
| Wayfair LLC | | United States |
| CastleGate Logistics Inc. | | United States |
| CastleGate Trade Services LLC | | United States |
| SK Retail, Inc. | | United States |
| Wayfair Maine LLC | | United States |
| Wayfair Transportation LLC | | United States |
| Wayfair Securities Corporation | | United States |
| Fariway Insurance Inc. | | United States |
| Wayfair Illinois LLC | | United States |
| Wayfair Trade LLC | | United States |
| Wayfair (BVI) Ltd. | | British Virgin Islands |
| CastleGate Logistics Canada Inc. | | Canada |
| Wayfair Canada ULC | | Canada |
| Wayfair Shanghai Ltd. | | China |
| Wayfair Deutschland Ltd. & Co. KG | | Germany |
| CastleGate Logistics Hong Kong Limited | | Hong Kong |
| Wayfair Poland sp. z o.o. | | Poland |
| Wayfair Deutschland GP Ltd. | | Republic of Ireland |
| Wayfair Europe Operations Limited | | Republic of Ireland |
| Wayfair Europe Support Services Limited | | Republic of Ireland |
| WDN Europe Limited | | Republic of Ireland |
| Wayfair Stores Limited | | Republic of Ireland |
| Wayfair (UK) Limited | | United Kingdom |