Payments company Square has raised $100 million in new funding at a valuation of nearly $6 billion, according to an article by Fortune.

Founded 2009, Square is revolutionizing millions of everyday transactions between buyers and sellers with its free credit card reader for the iPhone, iPad, and Android devices, allowing anyone to accept credit cards anywhere, anytime. Square Register serves as a full point-of-sale system for businesses to accept payments, track inventory, and share menu and location information. Pay with Square is the most seamless way to pay, enabling individuals to pay with their names at their favorite local merchants, discover nearby businesses, explore menu listings, and store receipts.