WE’RE HERE TO SERVE & PROTECT BUILDING SECURITY YOU CAN TRUST. Indemnity Security & Investigations, Inc. (ISI) is a licensed and insured South Florida-based private security and investigation agency with proficiency in security services, consulting and investigations. ISI is committed to providing tailored and customizable security solutions to fit our customer’s needs and serve our community with integrity and attentiveness. With over 30+ years of combined experience, ISI is dedicated to putting safety and security first.