3,688Companies and economic data 3,688 companies · 8 countriesSee all →
O'Reilly Auto Partsbusiness, public company
O'Sheascasino
Oakland Motor Car Companyautomobile manufacturer
Oakley, Inc.business, subsidiary company, enterprise
Oberheim Electronicsbusiness
Oberlin Collegeliberal arts college, college, private not-for-profit educational institution, school, private university
Obsidian Entertainmentvideo game publisher, video game developer, business
Occidental Collegeprivate not-for-profit educational institution, organization, private university
Occidental Petroleumbusiness, public company
Ocean Casino Resorthotel
OceanGate, Inc.business
OCLC, Inc.nonprofit organization, cooperative, libraryOOdyssey Marine Explorationbusiness, public company
Office Depotbusiness, retail chain, enterprise, public company
OfficeMaxbusiness, retail chain
Ogilvypublic relations agency, advertising agency
Ohio State Universitypublic educational institution of the United States, land-grant university, public research university
Ohio Universitypublic educational institution of the United States, public university
Ohio Valley Wrestlingbusiness, enterprise, professional wrestling promotion
Ohio Wesleyan Universityliberal arts college, Colleges That Change Lives, private not-for-profit educational institutionOOikos Universityuniversity
OkCupidsocial networking service, online dating service
Oklahoma State Universitypublic educational institution of the United States, land-grant university, public research university, sun grant institution
Oktasoftware company, organization, public company
Old Dominion Universitysea grant institution, public educational institution of the United States, university
Old Navybusiness
Oldsmobilecar brand, division, automobile manufacturer
Olin Corporationbusiness, enterprise, public companyOOlmsted Brothersarchitectural firm, landscape architectural firm
Omega Aerial Refueling Servicesairline
Omni Air Internationalairline
Omnicom Groupadvertising agency, business, public company
On2 TechnologiesbusinessOOne America News Networknews website, television channel, organization, subscription television, cable news in the United States
ONErpmrecord label, music distributor, business
Oneworldairline alliance, business
Onsemibusiness, enterprise, public company
Open Invention Networkbusiness, enterprise
Open Librarydigital libraryOOpen Road Flimsfilm production company, film distributor
OpenAIenterprise
OpenDNSservice on Internet, public recursive name server, business
OpenTablebusiness
Opticaassociation, open-access publisher, scientific society, academic publisher
OQObusiness, enterprise
Oracle Corporationbusiness, public company
Oral Roberts Universitychurch college, private not-for-profit educational institution, university
Orange Juliusrestaurant chain
Orbcommbusiness, public company
Orbital ATKlaunch service provider, former entity, defense contractor, aerospace manufacturerOOrbital Sciences Corporationlaunch service provider, enterprise, public company, aerospace manufacturer
Oregon Health and Science Universitypublic educational institution of the United States, public university
Oregon Institute of Technologyuniversity of technology, public educational institution of the United States
Oregon State Universityresearch university, sea grant institution, space grant institution, public educational institution of the United States, land-grant university, public research university, sun grant institution, public university
Organon & Co.organization, business, public companyOOrigin Systemsvideo game publisher, video game developer
Original Filmfilm production company
Orion Picturesfilm production company, business
Orpheum Theatretheatre building, movie theater, music venue
Oscar Mayerbusiness
Oshkosh Corporationbusiness, enterprise, public company
OTC Markets Groupinter-dealer quotation system, stock exchange, public companyOOTCBBstock exchange, business
Otis Worldwide Corporationbusiness, public company
Outerbanks Entertainmenttelevision production company, film production company
Ovation Guitar CompanybusinessOOverbrook Entertainmentbusiness
Ovintivpublic company
Owens Corningbusiness, public company
Owens-Illinoisorganization, business, enterprise, public company
O’Reilly Mediabook publisher, publishing house