Salesforce brought CRM to the cloud before "SaaSSoftware as a Service — applications delivered over the internet on a subscription basis." was mainstream: accounts, contacts, opportunities, and reports in a browser with no on-prem install. Apex and the AppExchange later turned it into a platform; HerokuA platform-as-a-service for deploying web applications — popular for Ruby, Node, and early cloud apps., MuleSoft, and SlackA team messaging app — channels, integrations, and the default chat layer for many companies. acquisitions expanded the ecosystem. It defined how enterprise software could be sold and extended online.

Salesforce proved large business apps could run entirely in the browser as multi-tenant SaaSSoftware as a Service — applications delivered over the internet on a subscription basis..

It pioneered subscription CRM and platform marketplaces that AWSAmazon Web Services — the dominant cloud platform for compute, storage, and managed infrastructure.-era startups copied.