FeSL

AcronymDefinition
FeSLFedora Security Layer (software)
FeSLFundamental Evangelical Softball League (Pennsylvania)
FeSLFoxglove Energy Supply Limited (UK)
FeSLFlint Energy Services LTD
FeSLFoi, Espérance, Service a Dieu et Liberté (French: Faith, Hope, Service to God and Freedom)
FeSLFoothills Energy Services, Ltd. (Sylvan Lake, Alberta, Canada)