public Company Search
| Company | Country | Capital IQ Industry |
| Ogawa World Berhad | Malaysia | Healthcare Equipment/Supplies |
| OGE Energy Corp. | United States | Utilities |
| Ogen Yielding Real Estate Ltd | Israel | Real Estate |
| Ogrev | Serbia | Wholesale and Distribution |
| Ogura Clutch Co.,Ltd. | Japan | Auto Parts |
| OGX Petróleo e Gás Participações SA | Brazil | Energy |
| Ohana Pacific Bank | United States | Banks and Thrifts |
| Ohara Inc. | Japan | Computers and Electronic Equipment |
| Ohashi Technica, Inc. | Japan | Auto Parts |
| OHB AG | Germany | Aerospace and Defense |
| Ohba Co., Ltd. | Japan | Engineering and Construction Services |
| Ohio Art Co. | United States | Restaurants and Leisure |
| Ohio Legacy Corp. | United States | Banks and Thrifts |
| Ohio State Bancshares Inc. | United States | Banks and Thrifts |
| Ohio Valley Banc Corp. | United States | Banks and Thrifts |
| Ohishi Sangyo Co., Ltd. | Japan | Packaging and Containers |
| Ohizumi Mfg. Co., Ltd. | Japan | Computers and Electronic Equipment |
| Ohki Co., Ltd. | Japan | Healthcare Services |
| OHL Mexico SAB De CV | Mexico | Transportation Infrastructure |
| Ohmori Co.,Ltd. | Japan | Engineering and Construction Services |
| Ohmoriya Co., Ltd. | Japan | Food & Beverages |
| Ohmoto Gumi Co., Ltd. | Japan | Engineering and Construction Services |
| Ohmura Shigyo Co. Ltd. | Japan | Packaging and Containers |
| Ohnami Corp. | Japan | Transportation Infrastructure |
| Ohr Pharmaceutical, Inc. | United States | Pharmaceuticals and Biotechnology |
| Ohsho Food Service Corporation | Japan | Restaurants and Leisure |
| OHTL Public Company Limited | Thailand | Restaurants and Leisure |
| Oi Electric Co., Ltd. | Japan | Computers and Electronic Equipment |
| Oidon Co., Ltd. | United States | Software and Technology Services |
| Oie Sangyo Co., Ltd. | Japan | Miscellaneous Commercial Services and Supplies |
| Oil and Gas Development Co., Ltd. | Pakistan | Energy |
| Oil and Gas Exploration and Production AD-Sofia | Bulgaria | Energy |
| Oil and Natural Gas Corp. Ltd. | India | Energy |
| Oil Basins Limited | Australia | Energy |
| Oil Country Tubular Limited | India | Energy |
| Oil India Limited | India | Energy |
| Oil Optimization Inc. | Thailand | Energy |
| Oil Refineries Ltd. | Israel | Energy |
| Oil Search Limited | Papua New Guinea | Energy |
| Oil States International Inc. | United States | Energy |
| Oil Terminal S.A. | Romania | Energy |
| Oil-Dri Corp. of America | United States | Misc. Consumer Products |
| Oiles Corporation | Japan | Heavy Machinery |
| Oilex Ltd. | Australia | Energy |
| Oiltanking Partners, L.P. | United States | Energy |
| Oishi Group Public Company Limited | Thailand | Restaurants and Leisure |
| Oisix Inc. | Japan | Retail |
| OIZUMI Corporation | Japan | Computers and Electronic Equipment |
| Ojai Community Bank | United States | Banks and Thrifts |
| Oji Holdings Corporation | Japan | Paper & Forest Products |
| OJSC "Bank Saint Petersburg" | Russia | Banks and Thrifts |
| OJSC "llylch Iron and Steel Works of Mariupol" | Ukraine | Metals & Mining |
| OJSC Abakanvagonmash | Russia | Heavy Machinery |
| OJSC Apatit | Russia | Metals & Mining |
| OJSC Blackbern | Russia | Miscellaneous Commercial Services and Supplies |
| OJSC Buryatzoloto | Russia | Metals & Mining |
| OJSC CCB Shkhuna | Ukraine | Heavy Machinery |
| OJSC ChelindBank | Russia | Banks and Thrifts |
| OJSC Cherkizovo Group | Russia | Food & Beverages |
| OJSC Chernigivgas | Ukraine | Utilities |
| OJSC Concern Galnaftogaz | Ukraine | Retail |
| OJSC Dubnovantazhavtotrans | Ukraine | Food & Beverages |
| OJSC Gai Mining and processing Co. | Russia | Metals & Mining |
| OJSC Krymgaz | Ukraine | Utilities |
| OJSC Kubanenergo | Russia | Utilities |
| OJSC LSR Group | Russia | Real Estate |
| OJSC Luganskshakhtoprokhodka | Ukraine | Engineering and Construction Services |
| OJSC Novolipetsk Steel | Russia | Metals & Mining |
| OJSC Pava | Russia | Food & Beverages |
| OJSC Pharmstandard | Russia | Pharmaceuticals and Biotechnology |
| OJSC Power Machines | Russia | Electrical Equipment |
| OJSC RAZGULAY Group | Russia | Food & Beverages |
| OJSC RBC | Russia | Media |
| OJSC Rusgrain Holding | Russia | Food & Beverages |
| OJSC Russian Sea Group | Russia | Food & Beverages |
| OJSC Territorial Generating Company No. 14 | Russia | Utilities |
| OJSC Varyoganneftegaz | Russia | Energy |
| OK Biotech Co., Ltd. | Taiwan | Healthcare Equipment/Supplies |
| OK Food Industry Co., Ltd. | Japan | Food & Beverages |
| OK Play India Limited | India | Heavy Machinery |
| OK Zimbabwe Limited | Zimbabwe | Retail |
| Oka Corp. Bhd | Malaysia | Building Products & Construction Materials |
| Okabe Co., Ltd. | Japan | Building Products & Construction Materials |
| Okada Aiyon Corporation | Japan | Heavy Machinery |
| Okamoto Glass Co., Ltd. | Japan | Computers and Electronic Equipment |
| Okamoto Industries Inc. | Japan | Chemicals |
| Okamoto Machine Tool Works Ltd. | Japan | Heavy Machinery |
| Okamura Corp. | Japan | Miscellaneous Commercial Services and Supplies |
| Okano Valve Mfg. Co. | Japan | Heavy Machinery |
| Okasan Securities Group Inc. | Japan | Miscellaneous Financial Services |
| Okato Holdings, Inc. | Japan | Miscellaneous Financial Services |
| Okaya & Co. Ltd. | Japan | Wholesale and Distribution |
| Okaya Electric Industries Co., Ltd. | Japan | Computers and Electronic Equipment |
| Okayama Paper Industries Co., Ltd. | Japan | Packaging and Containers |
| Okayamaken Freight Transportation Co., Ltd. | Japan | Railroads and Trucking Services |
| Oki Electric Cable Co. Ltd. | Japan | Electrical Equipment |
| Oki Electric Industry Co. Ltd. | Japan | Computers and Electronic Equipment |
| Okinawa Cellular Telephone Company | Japan | Communication Services |
| Okk Corporation | Japan | Heavy Machinery |
| Oklo Resources Limited | Australia | Energy |
| Okmetic Oyj | Finland | Semiconductors |
| Okong Corp. | South Korea | Chemicals |
| OKP Holdings Ltd. | Singapore | Engineering and Construction Services |
| Okuma Corporation | Japan | Heavy Machinery |
| Okumura Corp. | Japan | Engineering and Construction Services |
| Okura Industrial Co., Ltd. | Japan | Chemicals |
| OKUWA Co., Ltd. | Japan | Retail |
| OKWave | Japan | Software and Technology Services |
| Olam International Limited | Singapore | Miscellaneous Commercial Services and Supplies |
| Olav Thon Eiendomsselskap ASA | Norway | Real Estate |
| Old Dominion Freight Line Inc. | United States | Railroads and Trucking Services |
| Old Harbor Bank | United States | Banks and Thrifts |
| Old Line Bancshares Inc. | United States | Banks and Thrifts |
| Old Mutual plc | United Kingdom | Insurance |
| Old National Bancorp. | United States | Banks and Thrifts |
| Old Point Financial Corporation | United States | Banks and Thrifts |
| Old Republic International Corporation | United States | Insurance |
| Old Second Bancorp Inc. | United States | Banks and Thrifts |
| Old Stone Corp. | United States | Miscellaneous Financial Services |
| Oldenburgische Landesbank AG | Germany | Banks and Thrifts |
| Oldfields Holdings Limited | Australia | Wholesale and Distribution |
| OldTown Berhad | Malaysia | Food & Beverages |
| Oldwebsites.Com, Inc. | United States | Software and Technology Services |
| Olfactory Biosciences Corp. | United States | Pharmaceuticals and Biotechnology |
| Olidata SpA | Italy | Computers and Electronic Equipment |
| Olie, Inc. | Canada | Media |
| Olin Corp. | United States | Chemicals |
| Oliver Corporation | Japan | Miscellaneous Commercial Services and Supplies |
| Olivut Resources Ltd. | Canada | Metals & Mining |
| Olmix Société Anonyme | France | Food & Beverages |
| Olmuksa International Paper Sabanci Ambalaj Sanayi ve Ticaret AS | Turkey | Packaging and Containers |
| Olvi Oyj | Finland | Food & Beverages |
| Olympia Capital Corporation | Botswana | Building Products & Construction Materials |
| Olympia Capital Holdings Ltd. | Kenya | Building Products & Construction Materials |
| Olympia Financial Group Inc. | Canada | Miscellaneous Financial Services |
| Olympia Industries Berhad | Malaysia | Restaurants and Leisure |
| Olympia Industries Ltd. | India | Clothing, Textiles and Accessories |
| Olympia Spinning & Weaving Mills Ltd | Pakistan | Clothing, Textiles and Accessories |
| Olympic Cards Limited | India | Miscellaneous Commercial Services and Supplies |
| Olympic Corporation | Japan | Retail |
| Olympic Entertainment Group AS | Estonia | Restaurants and Leisure |
| Olympic Industries Limited | Bangladesh | Conglomerates |
| Olympic Resources Ltd. | Canada | Miscellaneous Financial Services |
| Olympic Steel Inc. | United States | Metals & Mining |
| Olympique Lyonnais Groupe SA | France | Media |
| Olympus Corporation | Japan | Healthcare Equipment/Supplies |
| OM Group Inc. | United States | Chemicals |
| OM Holdings Limited | Singapore | Metals & Mining |
| OM Metals Infraprojects Ltd. | India | Engineering and Construction Services |
| OM2Network Co.,Ltd. | Japan | Retail |
| Omagine, Inc. | United States | Real Estate |
| Oman & Emirates Investment Holding Company SAOG | United Arab Emirates | Miscellaneous Financial Services |
| Oman Agricultural Development | Oman | Food & Beverages |
| Oman Cables Industry SAOG | Oman | Electrical Equipment |
| Oman Cement Company(s.a.o.g) | Oman | Building Products & Construction Materials |
| Oman Ceramics Company SAOG | Oman | Building Products & Construction Materials |
| Oman Chlorine S.A.O.G. | Oman | Chemicals |
| Oman Chromite Company SAOG | Oman | Metals & Mining |
| Oman Education & Training Investment Company SAOG | Oman | Diversified Services |
| Oman Fiber Optic Co. S.A.O.G. | Oman | Electrical Equipment |
| Oman Filters Industry Company SAOG | Oman | Auto Parts |
| Oman Fisheries Company S.A.O.G. | Oman | Food & Beverages |
| Oman Flour Mills Company (SAOG) | Oman | Food & Beverages |
| Oman Foods International S.A.O.G. | Oman | Food & Beverages |
| Oman Holdings International Company SAOG | Oman | Conglomerates |
| Oman Insurance Company (P.S.C.) | United Arab Emirates | Insurance |
| Oman International Development and Investment Company SAOG | Oman | Banks and Thrifts |
| Oman Investment & Finance Company SAOG | Oman | Miscellaneous Commercial Services and Supplies |
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