Gatekeeper Systems is a global leader in loss prevention technology for retailers, founded in 1998. The company offers a suite of intelligent solutions including pushout theft prevention, violence prevention, business intelligence gathering, and shopping trolley management systems. Their patented technology protects over ten million trolleys worldwide and helps retailers improve safety, reduce merchandise loss, and increase profits. Gatekeeper Systems would be a good referral for retail businesses looking to tackle theft, enhance store safety, or improve their understanding of customer behaviour.