Software as a service (SaaS) refers to a business model in which a company sells cloud-based software (accessed via a browser or mobile app) at a monthly or annual fee. SaaS businesses are typically asset-lite, have high gross-margins, and are highly scalable. Examples of SaaS businesses include: Hubspot, Salesforce, Cloudflare, and Meta (Facebook). Most businesses that have a SaaS business model are a perfect fit for revenue based financing.