Clearip - Clearip provides the IP intelligence and fraud detection API in the market.
Clearbit - Clearbit provides Business Intelligence APIs
Near - Near is a Location-aware Data Platform that helps you Unify & Enrich your data, Take action and Measure Results.
ZoomInfo - ZoomInfo is a B2B database providing detailed business information on people and companies.
ipstack - ipstack is a free, real-time IP address to location JSON API and database service supporting IPv4 and IPv6 lookup.
InsideView - InsideView aggregates and curates all the company and contact data, news and social insights, and professional connections you need to do business better.