All Air Serv flight and aircraft maintenance operations are performed by the organization's wholly owned Ugandan subsidiary, Air Serv Limited (ASL). With a maintenance and flight operations base at Entebbe International Airport, ASL currently operates a fleet of six Cessna Caravans. In addition to humanitarian flying, ASL offers general commercial air charter, aircraft maintenance, and facility services.
Air Serv's fleet of Cessna Caravans currently serves United Nations World Food Program (WFP) and Medecins Sans Frontieres (MSF) operations in the Democratic Republic of the Congo and Republic of Chad. Flown on behalf of the United Nations Humanitarian Air Service (UNHAS), Air Serv is transporting humanitarian aid workers and supplies from a wide variety of NGOs - World Vision, Oxfam, CARE, UNHCR, UNICEF, International Committee of the Red Cross, Across, Food for the Hungry, SNV, Save the Children, and Concern, to name a few - to and from their remote work sites.