Stamps.com, Inc. engages in the provision of Internet-based mailing and shipping solutions. It operates through the following segments: Stamps.com and MetaPack. The Stamps.com segment offers postage online and shipping software solutions offered to consumers, small businesses, e-commerce shippers, enterprise mailers, and high volume shippers. The MetaPack segment focuses in multi-carrier enterprise-level shipping software solutions to large e-commerce retailers and brands. The company was founded by James Alastair Campbell McDermott, Jeff Green and Air R. Engelberg in September 1996 and is headquartered in El Segundo, CA.