Clearbit - Clearbit provides Business Intelligence APIs
Pipedrive - Sales pipeline software that gets you organized. Helps you focus on the right deals, so easy to use that salespeople just love it. Great for small teams.
ZoomInfo - ZoomInfo is a B2B database providing detailed business information on people and companies.
Vipor CRM - Relationship management. Redesigned.
InsideView - InsideView aggregates and curates all the company and contact data, news and social insights, and professional connections you need to do business better.
Upcall - Upcall enables you to crowdsource your outbound calls. Collaborate with 1000+ on-demand callers worldwide for sales, marketing and customer support calls. Free trial.