GEOSTR headquarters details
- Street address
- 1-4-1 Koishikawa
- City
- Tokyo
- State / region
- Tokyo Prefecture
- ZIP / postal code
- 112-0002
- Country
- Japan
- Phone
- +81 3 5844 1200
- Founded
- 1970
- Website
- geostr.co.jp
- Stock
- JPX: 5282
- linkedin.com/company/27074743
Location map
Open in Google MapsAll GEOSTR office locations
| City | State / region | Country | Type |
|---|---|---|---|
| Tokyo HQ | Tokyo Prefecture | Japan | Headquarters |
Showing the headquarters of 7 recorded locations. See every location in GraphIQ →
About GEOSTR
GEOSTR (JPX: 5282) is headquartered in Tokyo, Tokyo Prefecture, Japan. Founded in 1970, the company has 7 recorded locations across 2+ countries and employs approximately 465 people worldwide.
Where is GEOSTR's main office?
GEOSTR's main headquarters office is located at 1-4-1 Koishikawa, Tokyo, Tokyo Prefecture 112-0002, Japan. This is the company's primary corporate address.
GEOSTR regional offices
Beyond its headquarters in Tokyo, GEOSTR has recorded locations in Japan and United States.
GEOSTR contact information
The main switchboard for GEOSTR headquarters can be reached at +81 3 5844 1200. Official website: geostr.co.jp.
What does GEOSTR do?
GEOSTR Corporation manufactures civil engineering products using RC (reinforced concrete) segment. The Company specializes in tunnel structural materials for subways, waterworks, and sewerage. GEOSTR also manufactures and sells PC (precast concrete) housing materials and provides construction work services.
Frequently asked questions
Where is GEOSTR headquarters?
GEOSTR's headquarters is located at 1-4-1 Koishikawa, Tokyo, Tokyo Prefecture 112-0002, Japan.
How many offices does GEOSTR have?
GraphIQ records 7 locations for GEOSTR across 2+ countries, as of October 2026.
What is GEOSTR's corporate address?
The corporate headquarters address is 1-4-1 Koishikawa, Tokyo, Tokyo Prefecture 112-0002, Japan.
When was GEOSTR founded?
GEOSTR was founded in 1970 and employs approximately 465 people.
What is GEOSTR's phone number?
The main phone number for GEOSTR headquarters is +81 3 5844 1200.
How many employees does GEOSTR have?
GEOSTR has approximately 465 employees (GraphIQ estimate, 2026).
Is GEOSTR a public company?
Yes. GEOSTR is publicly traded on JPX under the ticker 5282.