The Masso Detective Agency in Philadelphia, Pennsylvania, was founded by President Mike Masso in 1969, and we have maintained a reputation for excellence and a dedication to satisfying your needs ever since. Trust on us for quality 24-hour security services and a range of other services. Our agency and patrol company takes pride in offering the most effective and reliable services in the industry. The licensed, insured, and bonded team at our agency has kept local homes and businesses safe for more than 40 years. We offer a vast array of services and security services to ensure you get the protection you deserve.