Introduction: Surveillance Investigation Services (SIS) is a professional investigative firm headquartered in Connecticut, providing a wide-range of investigative services from child custody, marital, family domestic, corporate, insurance, legal to financial communities.
Our aim is to provide the best possible service to our clients in an efficient, cost-effective, and practical manner, while at the same time preserving the elements of a personalized traditional client relationship. Our seasoned private investigators have years of experience.