Affiliated Companies
DKK-TOA Yamagata Corporation

As our main production base, DKK-TOA Yamagata Corporation manufactures basic process measuring instruments, water and sewer analyzers, environmental air measuring devices, etc., in the field of environment and process analytical instruments.
711-109 Fukudayama, Fukuda Aza, Oaza, Shinjo city, Yamagata-ken 996−0053
DKK-TOA Iwate Corporation

As our production base, DKK-TOA Iwate Corporation manufactures electrodes that require skilled glass processing technology.
9-9-3 Misazaki, Ayaori-cho, Tono city, Iwate-ken 028-0534
Bionics Instrument Co., Ltd.

Bionics Instrument Co., Ltd. is engaged in manufacturing, sales and maintenance & after-service for alarm devices that detect leaks of flammable / toxic gases and gases used in semiconductor manufacturing processes.
6-1254-2 Shimizu, Higashi Yamato city, Tokyo 207-0004
DKK-TOA Service Corporation
We provide maintenance and services for our measuring instruments
2−214 Sakuragaoka, Higashi Yamato city, Tokyo 207−0022
DKK Service Ibaraki Corporation
We provide maintenance and service for our measuring devices.
1-1-4 Shitte Chuo, Kamisu-shi, Ibaraki 314-0112