- Academic Competition Federation , a non-profit organization that promotes academic quiz tournaments in the United States
- Action Contre La Faim , an international non-profit, non-governmental organization that fights against hunger
- Administration For Children And Families , an operating unit of United States Department Of Health And Human Services
- Advanced Communication Function , software that gives resource-sharing and distributed-processing capabilities to Network Architecture ] networks
- African Conservation Foundation , an organization that works towards the protection and conservation of Africa's endangered wildlife and their habitats
- American Car And Foundry Company , a manufacturer of railroad rolling stock since 1899, now known as ACF Industries
- American Checker Federation , a non-profit organization that governs the game of American Checkers in the United States
- Army Cadet Force , a British youth organisation that offers progressive military training to boys and girls aged 12 to 18
- Australian Conservation Foundation , an Australian non-profit organization that promotoes ecologically sustainability
|
