Gregory Marine Insurance Gregory Marine Insurance is one of the most knowledgeable and reliable mid size insurance agencies in the state of Florida. Founded in the mid 90's, Gregory Marine Insurance with the sole purpose to assist our clients find the most affordable coverages for their personal and commercial interests. We strive for value-oriented pricing without sacrificing our exceptional client service. Our goal is to provide peace of mind for our clients. Gregory Marine Insurance Gregory Insurance Group are dedicated to obtaining the maximum amount of coverage per premium dollar spent by our clients.