Seiko Group Corporation（別窓で開く）
Management and control of its consolidated subsidiary companies which are engaged in the following business domains:
watches; devices solutions; systems solutions; clocks; high end apparel, fashion accessories and system clocks etc.

Seiko Watch Corporation（別窓で開く）
Planning, development and manufacturing of watches and other products and domestic and overseas sales
Product planning and sales of clocks—including wall clocks, desk clocks, and alarm clocks–for both domestic and international markets

Seiko Instruments Inc.（別窓で開く）
Development, manufacturing and sales of electronic components, precision components and printing devices

Seiko Solutions Inc.（別窓で開く）
Development, manufacturing, sales, maintenance, services and consultations for the hardware and the software relating with information systems and network services

Seiko Time Creation Inc.（別窓で開く）
Development, manufacturing, and sales of facility clocks, sports timing systems, digital signage, and large-scale display boards, including related installation services and timekeeping support for sporting events

WAKO CO.,LTD.（別窓で開く）
Sales of watches, jewelry, accessories, interior supplies, art goods and crafts, glasses and foodstuffs

Seiko NPC Corporation（別窓で開く）
Design, development, manufacturing, and sales of semiconductor products

Seiko Future Creation Inc.（別窓で開く）
Group-wide R&D and production technology development, plus provision of FA systems and Provision of analytical instrumentation and microfabrication services