The Auctane family of companies (and their countries of organization) include:

• Stamps.com Inc. (United States)
• Auctane LLC (United States)
• PSI Systems, Inc. (United States)
• Interapptive Inc. (United States)
• ShippingEasy, Inc. (United States)
• ParcelGuard Insurance Services, Inc. (United States)
• PhotoStamps Inc. (United States)
• Abol Software, Inc. (United States)
• Stamps Com Global Solutions Limited (Ireland)
• Metapack Limited (United Kingdom)
• MetaPack Poland Sp. z.o.o. (Poland)
• MetaPack Germany GmbH (Germany)
• ShipStation Limited (United Kingdom)
• Packlink Shipping S.L.U. (Spain)