DiscoverOrg - DiscoverOrg is an IT sales intelligence platform providing technology marketers access to data, IT org charts, and real time projects.
Optmyzr - Optmyzr AdWords Tools. Optimization Solutions, Quality Score Tracker, Landing Page Checker, and more. Free Trial Available.
6sense - 6sense is a B2B predictive intelligence engine for marketing and sales.
Crazy Egg - Through Crazy Egg's heat map and scroll map reports you can get an understanding of how your visitors engage with your website so you can boost your conversion rates.
PureB2B - Flexibile and scalable lead generation solutions that positively impact sales and marketing ROI.
Freshmarketer - An all-in-one CRO suite.