Advanced Composites Solutions ("ACS") is an engineering company specialized in composite materials technology, mainly their application to the development and construction of light aircraft. Founded by professionals with vast accumulated experience in the international aeronautic industry, the company is located in the city of Sao Jose dos Campos in the Brazilian aeronautic cluster.

Besides engineering services the main current activity of ACS is the production of the ACS-100 Sora, a two seat light sport aircraft.

ACS is also involved in the development and integration of Unmanned Aircraft Systems through its subsidiary Flight Solutions.