Which company is the leading provider?
NXP Semiconductors is the leading provider of Near Field Communication (NFC) ICs used in NFC transponders. These chips are utilized in tags made by a wide variety of companies. Which one is the best buy is difficult to say. It depends on whether you just want the cheapest transponder or are looking for a combination of price, quality, reliability and other factors. I would contact NXP, and also reach out to Avery Dennison, Smartrac Technologies and Invengo, which make high-quality NFC products and can deliver them in large quantities.
—Mark Roberti, Founder and Editor, RFID Journal