Company Profile

Company Profile

Date of
December 24th, 1978
Main Operation
・Design and construction of landscape gardening, civil engineering and construction projects
・Design and construction of EPS works and MCB works (side slope reinforcement of expanded polystyrene)
・Environment maintenance management of green spaces and public facilities
・Design and construction of wall and rooftop greening projects, production and sales of landscape gardening trees and tropical foliage trees, house agent
Share capital 30 million yen
Main Banks Mizuho Bank/Jiyugaoka Branch
Mitsui Sumitomo Banking Corporation/Jiyugaoka Branch
The Bank of Mitsubishi Tokyo UFJ, Ltd./Meguro Branch
Tokyo Tomin Bank/Gakugeidaigaku Ekimae Branch
The Bank of Yokohama, Ltd./Gotanda Ekimae Branch, etc.
Head Office:4-14-17, Megurohoncho, Meguro-ku, Tokyo MAP
TEL:+81-3-5722-4128 (main) FAX:+81-3-5722-2811
Hachijojima Branch:7725, Ookagou, Hachijo-cho, Hachijojima, Tokyo
TEL:+81-4996-9-5970 FAX:+81-4996-9-5971
Executives Chairman/Naotake Nishihama
President/Toshitaka Sugimura
Director,Construction Department Manager/Toshiro Kojima
Director/Yasuhiko Sugimura
Organizational Chart
General Affairs Department

License and Registration

・Governor License of Tokyo Metropolitan Special Construction Specific 26-28114

Landscaping and Gardening/Civil Engineering/Architectural and Construction/Paving/Steel Structure/
Waterproofing/Carpentry/Plastering/Roofing/Steel Reinforcement/Scaffolding/Excavation/Plumbing/
Dredging/Tiling, Roof Tiling and Block/Glazing/Interior Finishing/Heat Insulation/Cabinetmaking/
Sheet Metal

License and Registration Date of License
・Governor License of Tokyo Metropolitan
 House Agent (1) No.83750
October 29th, 2004
・Governor License of Tokyo Metropolitan
 Specially-controlled Industrial Waste Transport Business No.13-54-124164
July 31st, 2006
・Governor License of Kawasaki City
  Industrial Waste Transport Business No.5700124164
January 1st, 2006
・Governor License of Tokyo Metropolitan
 Industrial Waste Transport Business No.13-00-124164
January 16th, 2011
Technician (qualified personnel in our company)
List of Main Customers


April, 1973 Naotake Nishihama (current chairman)started a landscape gardening business
December, 1973 OCEAN GREEN GARDEN Co., Ltd. was established with a capital of 2 million yen
November, 1984 The share capital was increased to 4 million yen
May, 1991 The share capital was increased to 20 million yen
August, 1996 Adopting the EPS Construction Method
April, 1998 The share capital was increased to 30 million yen
January, 2003 The Company name was changed to OCEAN Co., Ltd.
Toshitaka Sugimura became president
Naotake Nishihama became chairman
October, 2007 Female only fitness club "Curves" was newly opened in front of Gakugei-daigaku Station
March, 2008 Female only fitness club "Curves" was newly opened in front of Yoga Station
May, 2012 Hachijo-jima Branch was established in Hachijo-jima, Tokyo
February, 2014 Moved to the current location