Ask HN: Best CRM/BD-mgmt product for 4-person startup?

HN:

We are three engineers and one sales. We are new and small - and need to start capturing our market, leads, vendors, etc - in something more complex than excel.

What tool would you recommend (freemium at this point preferred) - or should we just continue to use excel?

What tools are you using to track your market, contacts, leads, prospects etc that isn't a tool that is trying to service only Big Co.?

Any advice apreciated.