The Be Found need is for businesses that have a well known name in the community, but are not easily found online within seconds. Most companies spend thousands branding their name--- but how is the customer going to find and contact you?
The Convert need is for businesses that have great brand recognition, high website traffic, but customers are not taking the actions desired- whether it's making a phone call, submitting a lead form, making a purchase, registering for an event, etc.
The Analyze need is for businesses to measure what is or isn't working in their own individual sales funnel. 90% of all marketing budgets go toward gaining customers, but only 10% goes towards analyzing and optimizing.