HEICO is a company that offers electronics-related products and services. It operates through two business segments: the Flight Support Group (FSG) and the Electronic Technologies Group (ESG). The FSG segment designs, manufactures, repairs, overhauls, and distributes aircraft and engine components, provides support services for military and commercial aviation, and produces specialized parts and systems. The ESG segment provides electronic, electro-optical, microwave, and power-related components and solutions. The company caters to the aerospace, defense, commercial, and industrial markets.