I've found Crunchbase really useful for getting a quick overview of companies without having to visit several different websites. I like being able to see who founded a company, how much funding they've raised, who invested in them, and how they've grown over time. I mainly use it for business research and checking companies before reaching out Review collected by and hosted on G2.com.

Some profiles are outdated, and you need a paid subscription to access certain information. Overall, it's a useful tool that makes company research much easier. Review collected by and hosted on G2.com.