Demandbase - Bizo
Dynamic Yield - Personalization & customer experience management
6sense - 6sense is a B2B predictive intelligence engine for marketing and sales.
Optimizely - A/B testing you'll actually use.
HubSpot ABM Software - HubSpot ABM Software is a smart enterprise-based tool for dealing with accounts and sales marketing to bring all the accounts collaborations on one centralized platform.
AB Tasty - AB Tasty is an all-inclusive platform for conversion rate optimization, personalization, customer activation, and testing.