In addition to supply the heat of the hot water supply and heating the dwelling unit in a stable manner for 24 hours, to measure the lifetime of the plant energy-handling equipment and terminal equipment.

Centralized Monitoring System

Energy plants in residential building is automatic operation at all computer, operating conditions, fault condition has become a 24-hour service is sent to the monitoring center in real time over the internet.

Energy Services

We adjusted the support of business accounting and centralized management of energy, it also proposed system of cheap energy supply system.


We have opened a new homepage. The new homepage also supports browsing from smartphones and tablet devices....

Osaka Technocrat Co., Ltd. (Headquarters: Sakai City, Osaka Prefecture, President Yoshitsugu parsnal name Mine) has signed a contract to transfer all ...

Maintenance Performance

This article is a hit. Osaka technocrats, offers energy-saving central heating cooling system in its own state-of-the-art technology. It is an engineering company with providing optimal energy supply plan friendly to people and the environment that suits your needs, is to respond to responsible for the design, construction, and maintenance in general.

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Company Information

Residential building central heating system (Varme-24) was completed after delivery affiliates Co., Ltd. Osaka technocrats, Inc. Insight Energy residential building maintenance to perform the operation efficiently without day-to-day problems, and 24-hour monitoring it has been the energy service to.

Company Name In-site Energy Co.,Ltd
Establishment July 2003
Capital ¥10,000,000
Location ●Osaka Head Office
Osaka Prefecture, Sakai City,
Sakai-ku, Shijo-dori 1-3
TEL 072-224-7117
FAX 072-228-7832

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  ●Sapporo Office
Hokkaido, Sapporo, Higashi-ku,
north east 20, 22-1-1
TEL 011-786-5111
FAX 011-786-5050

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  ●Tokyo Office
Tokyo, Chiyoda-ku, Kajicho 1-6-15
Ido Kanda Station Building 8th Floor
TEL 03-5256-8261
FAX 03-5256-8260

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Main Customers ● Daiwa Service Co., Ltd.
● Marimo Co., Ltd.
● Sumitomo Realty & Development Building Service Co., Ltd.
● Daiwa Living Co., Ltd.
● Tokyu Kominiti Co., Ltd.
● Northern Gas Construction Co., Ltd.
Bank SMBC Sakai branch

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☎ Contact us by telephone:
●Osaka Head Office 072-224-7117 (9am 〜 5pm)
●Sapporo Office 011-786-5111 (9am 〜 5pm)