The first EAS Systems were installed over 30 years ago.  Now there are several worldwide companies, and many more local companies, all serving a market that includes more than 90 Countries.

There are approximately 1 Million detection systems and 1.5 Billion tags installed worldwide and the current estimated annual market is worth $1000M including the sales of over 5 Billion disposable labels

There are currently four main technology groups:

Different suppliers may focus on different technologies, and there is no universal "best" system, as each has advantages in different types of applications or installations.