NA Systems, Inc. (NASI) is a company based in Cebu City, Philippines that provides electrical engineering services. These services include electrical design, estimates, installation, consultancy, and maintenance. Since 1993, it completed numerous successful projects in both the Visayas and Mindanao.

With several years of experience in electrical construction work, NASI has become one of the leading electrical contractors in the nation.

Quality Policy: N. A. Systems Inc. is committed to implementing a continually improving Quality Management System that instantly assesses, develops, and executes in order to deliver quality electrical construction service that fully satisfies our clients' requirements in terms of technical specifications, budget, and time allocations while conforming to statutory and regulatory requirements.