OKI Worldwide

Group companies in Japan

Listed alphabetically. For companies beginning with OKI, the name thereafter is used.


OKI Adtech Support
6-16-20, Ueno, Taitou-ku, Tokyo 110-0005, Japan
Phone: +81-3-5846-3610
< Sales and maintenance of computers and peripherals >
OKI Alestech
3-2-12 Kaigan, Minato-Ku, Tokyo, 108-0022, Japan
Phone: +81-3-5427-5751
< Design, construction, and maintenance of Electrical, Firefighting facilities, Telecommunications, Network and Social system >
Tokyo Fashion Town Bldg. West Wing, 3-4-10, Ariake, Koto-ku, Tokyo 135-8072, Japan
Phone: +81-3-6426-0851
< Sales, development, system integration, maintenance and managed operation outsourcing of financial institutions branch systems >
OKI Circuit Technology
1-15-68 Takarada, Tsuruoka, Yamagata 997-0011, Japan
Phone: +81-235-24-3451
< Design, manufacture, assembly and sale of printed circuit boards, electronic devices and electronic components >
OKI Com-Echoes
681-1 Azamihara, Ozuwa, Numazu, Shizuoka 410-0873, Japan
Phone: +81-55-923-2381 Fax: +81-55-923-5279
< Design, development, manufacture,sales and maintenance of telecom, acoustic under water, radiowave applications, various sensors ,measurement and control equipments >
< Measurement, survey, testing and consulting for oceans, lakes, rivers >
OKI Comtec
1-16-8, Chuo, Warabi, Saitama, 335-8510, Japan
Phone: +81-48-420-7141 Fax: +81-48-420-7156
< Hardware development, design, and maintenance support for telecommunications carrier network systems >
OKI Consulting Solutions
4-10-16, Shibaura, Minato-ku, Tokyo 108-8551, Japan
Phone: +81-3-5635-8294 Fax: +81-3-3452-7814
< Proposition of consulting services for "New Business Development", "Digitalization", "Security Management" and "Financial Business" >
< Provision of ICT system solutions >
OKI Crosstech
Harumi Triton Square Y-26F, 1-8-11 Harumi, Chuo-ku, Tokyo 104-6126, Japan
Phone: +81-3-6381-2400
< Electrical work, electrical communication,construction of facilities such as fire extinguishing, engineering and maintenance >
< Maintenance, management, and technical support for info-telecom products and sales of related supply products >
1-1, Tatsuta, Syono, Fukushima, Fukushima 960-2196, Japan
Phone: +81-24-594-2270
< Printer manufacture, maintenance, and recycling >
OKI Electric Cable
3344-1 Sakaiiyoku, Isesaki-shi, Gunma 370-0105, Japan
Phone: +81-44-754-4369 Fax: +81-3-5635-8339
< Manufacture and sales of wires, electronic parts, metals and processed goods made of synthetic resin >
OKI Engineering
3-20-16 Hikawadai, Nerima-ku, Tokyo 179-0084, Japan
Phone: +81-3-5920-2300 Fax: +81-3-5920-2310
< Reliability testing/failure analysis/device characteristics/ESD evaluation/environmental measurement/green procurement support; telecom device development; EMC testing; instrument calibration >


OKI High-Technologies
965-3 Mimitori, Komoro, Nagano 384-0084, Japan
Phone: +81-267-22-1865
< Implementation and assembly of printed circuit board >
< Manufacture of electronic devices >
3-1 Futaba-cho, Takasaki, Gunma 370-8585, Japan
Phone: +81-27-323-2813
< Development, design, sales and consulting of firmware/hardware for multimedia (video, audio, communication) , development of industrial/medical equipment >
4-1-1, Kojimaminami, Honjyo, Saitama 367-8686, Japan
Phone: +81-495-25-1333
< Assembly of boards and equipments in EMS business >
Japan Business Operations
LUCID SQUARE TOYOCHO, 2-7-5, Minamisuna, Koto-ku, Tokyo 136-0076, Japan
Phone: +81-3-5621-3171 Fax: +81-3-5621-3217
< ATM operational status monitoring, operational support for fund projections, maintenance management outsourcing >


OKI Micro Engineering
10 Jumonji, Shibukawa, Nihonmatsu, Fukushima 969-1403, Japan
Phone: +81-243-61-3001 Fax: +81-243-61-3002
< Development, manufacture, and sales of precision compact motors >
OKI Nextech
1 Kamiyamaguchi, Tokorozawa, Saitama 359-1153, Japan
Phone: +81-4-2922-0211 Fax: +81-4-2922-0218
< Design, manufacture, sale and maintenance of info-telecom equipment, industrial electronic equipment, medical electronic equipment and other electronic equipment, and electronic components >


OKI Proserve
4-10-16, Shibaura, Minato-ku, Tokyo 108-8551, Japan
Phone: +81-3-5635-8292 Fax: +81-3-3798-7636
< Shared services of common business for OKI group companies; Facility(real estate, design/construction, building maintenance), Humane resources, General affairs, Accounting, Engineering support, etc. >
OKI Software
1-16-8, Chuo, Warabi, Saitama, 335-8510, Japan
Phone: +81-48-420-5200 Fax: +81-48-420-5201
< Software development, design, and production >
< Development and sales of software and systems involving info-telecom processes >
< Planning, development, maintenance, management, and consulting for IT systems >
OKI Software Expert Service
1-16-8, Chuo, Warabi, Saitama, 335-8510, Japan
Phone: +81-48-420-5290 Fax: +81-48-420-5201
< Systems operating services for information processing and various support services >
OKI Sympho-Tech
1 Tate, Sasakino, Fukushima, Fukushima, 960-8057, Japan
Phone: +81-24-555-2105 Fax: +81-24-555-2114
< Design, development, manufacture, production and sales of machinery parts, enclosure, power devices and Unit assenmbly >
1 Kamiyamaguchi, Tokorozawa, Saitama, 359-1153, Japan
Phone: +81-4-2928-5320
< Mounting and assembly of printed circuit boards, adjustment and inspection of products >
OKI TOMIOKA Manufacturing
1256-1, Tomioka, Tomioka, Gunma 370-2316, Japan
Phone: +81-274-70-2877
< Assembly of equipments for mechatronics system business >
OKI Trustech
1 Fukuda-cho, Joetsu, Niigata, 942-0032, Japan
Phone: +81-25-544-5470
< Manufacture of printed circuit boards >


OKI WorkWel
4-10-16, Shibaura, Minato-ku, Tokyo 108-8551, Japan
Phone: +81-3-5445-6805 Fax: +81-3-3798-7085
< website design, design production, creation of business cards etc. >

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