Today’s Smart Solutions. Dependably Made Under One Roof: NAPCO Security Technologies, comprising, Napco Security/Fire & Napco Access’ Alarm Lock, Marks USA & Continental has been designing and manufacturing the security, fire, access control & locking systems, that businesses, schools, residential properties, institutions, and government have come to rely on for 50+ years. While times and technologies change, the commitment and adherence to the highest industry standards for quality, durability, & customer care should not. Know, that although we make solutions for every security application and budget, our entire company is dedicated to just one thing: Keeping yours secure.