Southwest Airlines

United Airlines, Inc. is a major American airline headquartered at the Willis Tower in Chicago, Illinois. United operates an extensive domestic and international route network across the United States and all six inhabited continents primarily out of its eight hubs, with ChicagoO'Hare having the largest number of daily flights and Denver carrying the most passengers in 2023. Regional service is operated by independent carriers under the brand name United Express.

Established in 1974, Helicopter Applicators Inc. is equipped with 12 helicopters and four hangars in Delaware, Mississippi and Florida. The firm offers an array of services, such as infrared surveys, aerial video, hyperspectral surveys, agricultural spraying, right-of-way surveys/spraying, gypsy moth control, mosquito/black fly control, dry seeding/fertilizer, forestry fertilizing/seeding/spraying, hydro seeding, as well as aquatic herbicide applications. Located in Gettysburg, Pa., Helicopter Applicators Inc. operates its charter operations under authorization from the FAA (Federal Aviation Administration).