AWS has grown fast because its services are cheap, relatively easy to use and can be shut off or ramped up quickly, depending on companies' needs. Evercore analyst Ken Sena expects AWS revenue to jump 45 percent a year, from about $2 billion this year to $20 billion in 2018.
The division has traditionally been used by start-up tech companies and other smaller businesses. Large corporations, known as enterprises in the tech world, have dabbled with AWS, but most shun cloud-based services for mission critical applications. Jassy said on Wednesday that is changing.