Abbreviations beginning with O

ONSCOzark Natural Science Center (Huntsville, AR)
Academic & Science

ONSCObligaciones Negociables Subordinadas Convertibles (Spanish: Convertible Subordinated Notes; Argentina)
Business

ONSCOld North State Council
Community » Scouting

ONSCOffice of National Security Coordination (Departmet of Homeland Security / FEMA)
Governmental

ONSCOficina Nacional de Servicio Civil (Spanish: National Civil Service Office; Uraguay)
Governmental

ONSCOld North State Council
Governmental » Council

ONSCOficina Nacional del Servicio Civil
International » Spanish

ONSCOld North State Council (Boy Scouts of America; North Carolina)
Miscellaneous

ONSCOlde North State Cruisers
Miscellaneous » Automotive

ONSCOlde North State Cruisers
Miscellaneous » Unclassified

ONSCOzark Natural Science Center
Regional » States

ONSDOptic Nerve Sheath Decompression (ophthalmology)
Academic & Science

ONSDOptional Network Specific Digit
Computing » IT

ONSDoptic nerve sheath diameter
Medical

ONSDOrder of Nova Scotia Druids
Miscellaneous

ONSDSOld North State Dental Society (Goldsboro, NC)
Academic & Science

ONSEOnSite Energy Corporation
Business » NASDAQ Symbols

ONSEOffice of Neighborhood Safety and Engagement
Miscellaneous » Unclassified