Gemellaro Systems Integration®IT service provider profile · Troy, MI

In their own wordsGemellaro Systems Integration (GSI) is a leader in physical security systems and network infrastructure solutions based in Southeast Michigan. With over 30 years of experience, GSI operates from key locations in Troy and Ann Arbor, delivering comprehensive services both nationally and globally. The company focuses on building long-term relationships with clients, integrating seamlessly as an extension of their security and IT teams. GSI offers a range of specialized services, including the design, installation, and maintenance of security systems, managed services for security operations, and support for IT network infrastructure. Their expertise extends to systems integration for security command centers, ensuring tailored solutions that meet the unique needs of diverse environments. GSI emphasizes innovation and reliability, positioning its services for scalability from regional projects to international deployments.

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“We are proven leaders with over 30 years’ experience in hi-level security and network systems, and it’s with great teamwork that we’re able to provide customers with the protection of a trusted quality brand.”

“Top Workplace GSI awarded top workplaces 2022, 2023, 2024, and 2025 by detroit free press We are committed to providing the best working environment for our people.”