Companies catalogue
- O'okayama Elementary School, Meguro-ku
- OOT.TOKYO, Adachi-ku
- ORIX, Akashi-shi
- OSHO 英語学院, Matsudo-shi
- Oamishirasato Shiritsu Oami Elementary School, Ōamishirasato-shi
- Oamishirasatocho Daiichi Bike Locker, Ōamishirasato-shi
- Oamishirasatocho Town Hall Administration Division Fire Fighting Disaster Prevention Team, Ōamishirasato-shi
- Oamishirasatochoritsumasuhokita Elementary School, Ōamishirasato-shi
- Oana Elementary School, Funabashi-shi
- Oanakita Elementary School, Funabashi-shi
- Oda Elementary School, Kawasaki-shi
- Odaiba Ultra Park, Kōtō-ku
- Ogashiwaseikatsukaizen Center, Moriya-shi
- Ogi Elementary School, Adachi-ku
- Ogu Dairoku Elementary School, Arakawa-ku
- Ogu Fire Department, Arakawa-ku
- Ogu Miyamae Elementary School, Arakawa-ku
- Ogu Nishi Elementary School, Arakawa-ku
- Oguradai Elementary School, Inzai
- Ogurihara Elementary School, Funabashi-shi
- Oi Fire Department, Shinagawa-ku
- Oi Fire Department Takioji Branch, Shinagawa-ku
- Oi Fire Department Yashio Branch, Shinagawa-ku
- Oi Shobo-Dan Dai 1 Branch Fire Fighting Equipment Warehouse, Shinagawa-ku
- Oji Daini Elementary School, Kita-ku
- Oji Daisan Elementary School, Kita-ku
- Oji Elementary School, Kita, Kita-ku
- Ojidai Elementary School, Sakura
- Okudo Elementary School, Katsushika-ku
- Omachi Elementary School, Ichikawa-shi
- Omitamashi Fire Department Hq Fire Toiawase, Omitama-shi
- Omitamashi Fire Department Hq Ogawa Fire Department, Omitama-shi
- Omitamashi Fire Department Hq Tamari Fire Department, Omitama-shi
- Omitamashishoubohonbuminori Fire Department, Omitama-shi
- Omori Daigo Elementary School, Ōta-ku
- Omori Daiichi Elementary School, Ōta-ku
- Omori Daisan Elementary School, Ōta-ku
- Omori Fire Department, Ōta-ku
- Omori Fire Department Ichinokura Branch, Ōta-ku
- Omori Fire Department Magome Branch, Ōta-ku
- Omorihigashi Elementary School, Ōta-ku
- Onagigawa Elementary School, Kōtō-ku
- Onazuka Elementary School, Ōta-ku
- Osawa Auto Body Ltd., Koganei-shi
- Oshito Shobo-Dan Station, Tsuchiura-shi
- Oshukumachi Daihachi Branch, Onjuku-machi
- Ota Kuritsu Shimoda Elementary School, Ōta-ku
- Otake Strawberry Gardens, Kimitsu-shi
- Otakicho Ritsunishi Junior High School, Ōtaki-machi
- Otakicho Ritsunishihata Elementary School, Ōtaki-machi
- Otakicho Shobo-Dan Dai 12 Branch Fire-Fighting Device Yard, Ōtaki-machi
- Otakicho Shobo-Dan Dai 15 Branch Fire-Fighting Device Yard, Ōtaki-machi
- Otakicho Shobo-Dan Dai 18 Branch Fire-Fighting Device Yard, Ōtaki-machi
- Otakicho Shobo-Dan Dai 19 Branch Fire-Fighting Device Yard, Ōtaki-machi
- Otakicho Shobo-Dan Dai 22 Branch Fire-Fighting Device Yard, Ōtaki-machi
- Otakicho Shobo-Dan Dai 23 Branch Fire-Fighting Device Yard, Ōtaki-machi
- Otakicho Shobo-Dan Dai 3 Branch Fire-Fighting Device Yard, Ōtaki-machi
- Otakicho Shobo-Dan Dai 4 Branch Fire-Fighting Device Yard, Ōtaki-machi
- Otakicho Shobo-Dan Dai 5 Branch Fire Fighting Equipment Yard, Ōtaki-machi
- Otakicho Shobo-Dan Dai 7 Branch Fire-Fighting Device Yard, Ōtaki-machi
- Otakicho Shobo-Dan Dai 9 Branch Fire-Fighting Device Yard, Ōtaki-machi
- Otakichotachi Otaki Elementary School, Ōtaki-machi
- Otakimachi Motor Driving School, Ōtaki-machi
- Otsu Internal Medicine Clinic, Omitama-shi
- Otsugaoka Daini Elementary School, Kashiwa-shi
- Owadashuraku Center, Isumi-shi
- Oz Berry Farm(鬼沢いちご園), Hokota-shi
- Ozeki Dermatology, Toride-shi