General Info: Evergreen has matched machines to missions since 1960. As technology has advanced so have we. Evergreen Unmanned Systems ( EUS ) a division of Evergreen Helicopters, Inc, is an Unmanned Aircraft System ( UAS ) service provider.Because Evergreen is not a manufacturer but a service provider, we provide an unbiased and objective evaluation of the industry's top unmanned aircraft. Evergreen's independence from manufacturing allows our clients the ability to trust us with delivering the correct answers and right platform to achieve best mission results.EUS is always researching new and innovative Unmanned Aircraft System ( UAS ) platforms to expand our fleet's versatility. Evergreen concentrates on commercial, unmanned aerial surveillance with both maritime and land-based ground stations.