Our Services

Delta Sierra Group (DSG) provides expert armed and unarmed security services across Suffolk County, Nassau County, and New York City. We specialize in tailored security solutions for businesses, financial institutions, events, and private properties, ensuring the safety of staff, clients, and assets.

Our team is trained to handle a wide range of security challenges, from theft and vandalism prevention to emergency response and risk mitigation. We combine a visible, professional presence with advanced monitoring, reporting, and communication systems to protect your operations while maintaining a calm, welcoming environment.

All DSG personnel are rigorously screened, licensed, and continuously trained to meet the highest standards of professionalism, discretion, and accountability. Whether you manage a corporate office, retail location, event, or residential property, we design custom security plans to fit your specific needs.

With a focus on operational excellence, legal compliance, and risk reduction, Delta Sierra Group is the trusted choice for organizations and individuals seeking reliable, professional security services. Protect your people, property, and reputation with DSG—where expertise, experience, and discretion meet.