Gazelle - Buy and Sell your used cell phones and electronics. Sell your iPhone, Samsung Galaxy, iPad and more for cash, or buy used iPhones, iPads and other cell phones. More than one million customers trust Gazelle.
Clearbit - Clearbit provides Business Intelligence APIs
Swappa - Swappa is, in fact, an e-commerce website working as a platform for dealing with used smartphones, tablets, and mobile phones related accessories as well.
ZoomInfo - ZoomInfo is a B2B database providing detailed business information on people and companies.
Quicko - Quicko is an online DIY Tax planning, preparing and filing platform for Individuals and Businesses in India.
InsideView - InsideView aggregates and curates all the company and contact data, news and social insights, and professional connections you need to do business better.