WordStream - WordStream offers a suite of products to help companies with their SEO and SEM initiatives.
Clearbit - Clearbit provides Business Intelligence APIs
Marin Software - Optimize your Search, Social & Display ads across channels and devices. Marin Software, the leading cross-channel performance advertising platform.
ZoomInfo - ZoomInfo is a B2B database providing detailed business information on people and companies.
Kenshoo - Kenshoo provides marketing software and empower marketers with technology to build brands and generate demand across all media.
InsideView - InsideView aggregates and curates all the company and contact data, news and social insights, and professional connections you need to do business better.