| Company name | 
Sankosha Corporation | 
| Founding | 
April 1930 | 
| Establishment | 
June 1939 | 
| Capital | 
97.5 million yen | 
| Representative | 
President and CEO Masayoshi Ito | 
| Number of group companies | 
13 companies in Japan 
8 overseas companies  | 
| Number of employees (whole group) | 
1,038 | 
| head office | 
18F Osaki Wiz Tower,2-11-1,Osaki,Shinagawa-ku,Tokyo,Japan 141-0032 
TEL: +81-3-3491-7181 (representative) 
FAX: +81-3-3494-7574  | 
| Industry | 
Telecommunications machinery manufacturing and sales | 
| Membership of professional institutions | 
Japan Lightning Protection System Industrial Association (JLPA) 
Information and Communication Network Industry Association (CIAJ)  | 
| Main business | 
	- Investigation, research and consulting on lightning damage
 
- Manufacture and sales of power supply, communication protectors and lightning transformers
 
- Manufacture and sale of general electric appliances
 
- Manufacture and sale of measurement and test equipment
 
- Manufacture and sales of grounding systems
 
- Manufacture and sale of containment shelters, seismic isolation devices, seismic frames, and free access floors
 
- Facilities construction such as telecommunications, grounding, earthquake-resistant building
 
- Manufacture and sales of communication terminal boards, wiring boards, and distribution boards
 
- Manufacture and sales of optical fiber network related equipment
 
- Lightning, weather information collection, analysis, and forecasting services
 
- Development and sales of computer hardware and software associated with lightning and weather information services
 
- Development, production and sales of lightning and meteorological observation equipment
 
  | 
| Construction industry permission | 
[Specific construction industry] Minister of Land, Infrastructure, Transport and Tourism (Special -27) No. 4025 
			
[General Construction Industry] Minister of Land, Infrastructure, Transport and Tourism (General-27) No. 4025 
			
	- Building construction business
 
- Carpenter business
 
- Roofing business
 
- Steel structure construction business
 
- Tile, brick and block business
 
- Interior finishing business
 
- Telecommunications business
 
  | 
| Sales system | 
	- Lightning protection sales department
 
- Government Office Sales Department
 
- Aviation Light / External Lightning Sales Department
 
- Communication Network Equipment Sales Department
 
- Energy Equipment Sales Department
 
- Thunder Observation System Sales Department
 
- Railway Sales Department
 
  |