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So who's left in lead scoring/predictive space?
Luckily this space is very crowded and I predict that everyone is CRM, Sales Automation, Sales Enablement, Sales Acceleration -- no to mention all the marketing systems -- will all have some sort of big, predictive data play at some point.
The most popular players at the moment are:
Check out reviews at G2Crowd: https://www.g2crowd.com/products/infer/competitors/alternatives
I should mention that lead scoring has been happening for a while through marketing automation systems like Marketo, Pardot, Hubspot, etc.