Are there any searchers here looking for SAAS companies?

Hey Everyone,
Just wondering if there are searchers here looking for SAAS companies, and if so can you please clarify:

A. what makes a SAAS company a SAAS company vs a service company. For instance if it's a combination of tech and not tech how would you know what to classify it as?

B. For SAAS companies, are you looking at revenue multipliers (instead of profit multipliers)?

Thanks!