Aerospace Engineering Spectrum (AES) is a Joint Venture founded in 1995 as a consortium of four partner companies with a unique CAGE code, and qualifying under NAICS 541710. AES functions as a single legal and business entity, with each of the four partner companies forming one of four Divisions within our organizational structure. Current operations include commercial and defense contracts for local, national, and international customers. Select Engineering Services (SES) is one of the four AES Partners, and as such, is considered a Small Business DESP-II Prime contractor.