Mainstream Data is a multi-line technology and services company with three principal lines of business:
1) Media management and content operations software for publishers, photo/news agencies, and media-heavy organizations (digital asset management, licensing/monetization, file transfer, editorial workflows, metadata automation).
2) Satellite communications services providing IP connectivity for backup and high-reliability use cases.
3) IT technical services (SmartHands / data center services) focused on mission-sensitive environments.
In practice, the offering is a portfolio of solutions, some of which are services-led and custom-scoped rather than a single, standardized SaaS product.