INPEX Headquarters & Office Locations

Oil/gas exploration company. Headquarters: Chiyoda, Tokyo 107-6332, Japan.

Headquarters
Chiyoda, Tokyo
Total locations · 9+ countries
22
Employees · est. 2026
2,146

Identity graph

INPEX headquarters, locations and relationships

HeadquartersChiyoda, Tokyo 107-6332, JapanOpen in Google Maps
Legal name
INPEX Corporation
Industry
Oil And Gas Exploration And Production
Founded
1966
Ticker
JPX: 1605

INPEX office locations

22 total · 9+ countries
INPEX office locations: headquarters and key locations
CityState / regionCountryType
ChiyodaTokyoJapanHeadquarters
——AustraliaOffice
MontgeronÎle-de-FranceFranceOffice
JakartaJakartaIndonesiaOffice
AkasakaTokyoJapanOffice
NaganoNaganoJapanOffice
See all 22 locations
Parent company
No parent company recorded in GraphIQ.ai.
Competitors
INPEX competes with 4 organizations in the GraphIQ.ai identity graph.

Verified from public filings, company websites and news · Methodology

Open in GraphIQ.ai

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    Subsidiaries, people and lookalike companies.

Who uses the INPEX entity

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    Government
  • Private equity and investors

    Corporate family, comparable companies and deal sourcing.

    Private equity
  • Revenue and GTM teams

    Territories, enrichment and account expansion on one resolved account.

    RevOps Sales & marketing
  • Developers and AI agents

    The entity and its relationships through the REST API and MCP server.

    Developers

About INPEX

INPEX (JPX: 1605) is headquartered in Chiyoda, Tokyo, Japan. Founded in 1966, the company has 22 recorded locations across 9+ countries and employs approximately 2,146 people worldwide.

Where is INPEX's main office?

INPEX's main headquarters office is located at Chiyoda, Tokyo 107-6332, Japan. This is the company's primary corporate address.

INPEX regional offices

Beyond its headquarters in Chiyoda, INPEX has recorded locations in Japan, Australia, France, Indonesia, Norway, The Netherlands, United Arab Emirates, United Kingdom and 1 other country.

INPEX contact information

The main switchboard for INPEX headquarters can be reached at +81 3 5572 0200. Official website: inpex.co.jp.

What does INPEX do?

INPEX Corporation operates oil and gas production. The Company explores, produces, and sells crude oils, natural gas, and others. INPEX markets its products throughout Japan.

One entity, every stage

Put INPEX to work across your revenue bowtie

All use cases
  1. Target Define the market Build the account list from companies shaped like your best customers, INPEX included. Fingerprint search 
  2. Cover Plan territories INPEX's 22 locations roll up to one account, so it lands in one territory, once. Territory planning 
  3. Engage Act on timing Leadership changes, funding and M&A arrive linked to the account, not a loose headline. Signal monitoring 
  4. Convert Close on a resolved record Inbound and closed-won attach to one CRM record, with no duplicates to merge. CRM enrichment 
  5. Retain Ground every answer Customer teams and AI agents answer from the same entity, with a source and a date. AI agent data layer 
  6. Expand Find the next buyer inside Follow subsidiaries and divisions to the next team that can buy. Account expansion 

About the source

What is GraphIQ.ai?

A B2B identity graph. It resolves each organization into one verified entity and maps its parent and subsidiaries, employees, competitors and news signals. Revenue teams use it in the product; AI agents query it through the REST API and MCP server.

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INPEX: frequently asked questions

Where is INPEX headquarters?

Chiyoda, Tokyo 107-6332, Japan.

What is INPEX's phone number?

+81 3 5572 0200 (headquarters).

When was INPEX founded?

1966.

How many employees does INPEX have?

About 2,146, as of October 2026 (GraphIQ.ai estimate).

How many offices does INPEX have?

22 locations across 9+ countries, including Montgeron, Jakarta, Akasaka, Nagano.

Is INPEX a public company?

Yes. INPEX trades on JPX under the ticker 1605.

Questions about GraphIQ.ai

Is GraphIQ.ai a list of companies like a spreadsheet?

No. Each organization resolves to one verified entity linked to its parent, subsidiaries, people and signals, so INPEX here is the same INPEX in your CRM, territory plan and agent answers.

Where does this INPEX data come from?

Public filings, company websites and news, resolved to one entity and continuously updated.

Find more info on INPEX using GraphIQ

Revenue teams waste hours stitching together data from a dozen tools before a single rep can make a meaningful touch. GraphIQ fixes that. Whether you're building target account lists, routing inbound leads, or keeping your CRM clean as INPEX's structure evolves, GraphIQ gives you verified company, people and location data in one place.

From territory planning and lead scoring to handoff workflows and pipeline hygiene, our platform connects the data your GTM engine needs to run without friction. Sign up today and see how GraphIQ helps your revenue team spend less time finding information and more time acting on it.

287MOrganizations resolved
393MEmployees
2B+News and events