Idemitsu Kosan Overview
- Year Founded
-
1940
- Status
-
Public
- Employees
-
19,531
- Stock Symbol
-
5019
- Investments
-
72
- Share Price
-
$8.10
- (As of Friday Closing)
Idemitsu Kosan General Information
Description
Idemitsu Kosan Co Ltd engages in a variety of activities globally that include petroleum products, oil exploration and production, coal, and other businesses. The company operates through five segments. The Basic Chemicals segment makes and sells olefins and aroma products. Electricity/Renewable Energy covers thermal, solar, and wind power generation, electricity sales, and solar business. Fuel Oil handles production, trading, and import/export of refined petroleum. The Highly Functional Materials segment includes lubricants, chemicals, electronic materials, paving materials, and agri-bio. The Resource segment explores, develops, and sells crude oil, natural gas, and coal. Others cover insurance and intra-group services. It generates the majority of its revenue from the Fuel oil segment.
Contact Information
Website
www.idemitsu.comCorporate Office
- 1-2-1 Otemachi
- Chiyoda-ku
- Tokyo, 100-8321
- Japan
Corporate Office
- 1-2-1 Otemachi
- Chiyoda-ku
- Tokyo, 100-8321
- Japan
Idemitsu Kosan Stock Performance
As of 13-Nov-2026, Idemitsu Kosan’s stock price is $8.10. Its current market cap is $9.7B with 1.2B shares.
(As of Friday Closing)
| Stock Price | Previous Close | 52 wk Range | Market Cap | Shares | Average Volume | EPS |
|---|---|---|---|---|---|---|
| $8.10 | $8.23 | $7.09 - $11.12 | $9.7B | 1.2B | 5.08M | $2.27 |
Idemitsu Kosan Financials Summary
As of 30-Sep-2026, Idemitsu Kosan has a trailing 12-month revenue of $59.6B.
|
In Thousands, USD |
TTM 30-Sep-2026 | FY 2026 31-Mar-2026 | FY 2025 31-Mar-2025 | FY 2024 31-Mar-2024 |
|---|---|---|---|---|
| EV | 23,823,708 | 20,530,326 | 16,874,198 | 17,788,745 |
| Revenue | 59,576,887 | 53,779,369 | 60,264,514 | 60,344,736 |
| EBITDA | 4,575,217 | 2,166,656 | 1,725,143 | 3,041,986 |
| Net Income | 2,748,974 | 1,140,581 | 682,336 | 1,581,551 |
| Total Assets | 39,711,825 | 33,334,535 | 31,913,331 | 33,117,246 |
| Total Debt | 15,185,298 | 8,521,807 | 7,994,889 | 8,579,069 |
Idemitsu Kosan Valuation & Funding
| Deal Type | Date | Amount | Valuation/ EBITDA |
Post-Val | Status | Debt |
|---|
Idemitsu Kosan Comparisons
Industry
Financing
Details
Idemitsu Kosan Competitors (3)
One of Idemitsu Kosan’s 3 competitors is Japan Petroleum Exploration, a Corporation company based in Tokyo, Japan.
| Company Name | Financing Status | Location | Employees | Total Raised | Last Financing Date/Type | Last Financing Amount |
|---|---|---|---|---|---|---|
| Japan Petroleum Exploration | Corporation | Tokyo, Japan | ||||
| ENEOS Holdings | Corporation | Tokyo, Japan | ||||
| Motul | Corporation | Aubervilliers, France |
Idemitsu Kosan Patents
Idemitsu Kosan Recent Patent Activity
| Publication ID | Patent Title | Status | First Filing Date | Technology (CPC) | Citations |
|---|---|---|---|---|---|
| JP-2026123065-A | Styrene-based resin composition and molded article | Pending | 16-Apr-2026 | ||
| JP-7931337-B1 | Lubricating oil composition | Active | 01-Apr-2026 | ||
| JP-7909675-B1 | Refrigerating machine oil composition and mixture for refrigerators | Active | 07-Nov-2025 | ||
| JP-7909676-B1 | Refrigerating machine oil composition and mixture for refrigerators | Active | 07-Nov-2025 | ||
| JP-7829789-B1 | Lubricant composition for internal combustion engines | Active | 30-Sep-2025 |
Idemitsu Kosan Signals
Growth Rate
Growth
Size Multiple
Key Data Points
Similarweb Unique Visitors
Majestic Referring Domains
Idemitsu Kosan Investors
| Investor Name | Investor Type | Holding | Investor Since | Participating Rounds | Contact Info |
|---|
Idemitsu Kosan Investments & Acquisitions (72)
Idemitsu Kosan’s most recent deal was a Early Stage VC with Jet Zero for . The deal was made on 07-Sep-2026.
| Company Name | Deal Date | Deal Type | Deal Size | Industry | Lead Partner |
|---|---|---|---|---|---|
| Jet Zero | 07-Sep-2026 | Early Stage VC | Energy Production | ||
| Quaise Energy | 27-Aug-2026 | Later Stage VC | Energy Production | ||
| NLM Photonics | 26-Aug-2026 | Later Stage VC | Application Specific Semiconductors | ||
| Thea Energy | 18-Aug-2026 | Early Stage VC | Alternative Energy Equipment | ||
| FLNG2 | 15-Jul-2026 | Buyout/LBO | Other Energy |
Idemitsu Kosan ESG
Risk Overview
Risk Rating
Updated November, 04, 2026
39.89 | High Risk
Risk Scale
A lower score indicates better sustainability
Negl
0-10
Low
10-20
Med
20-30
High
30-40
Severe
40+
Exposure
Exposure refers to the extent to which a company is exposed to different material ESG issues
Management
Management is related to actions taken to manage ESG issues
Peers Analysis
Peer performance insights compare the company’s ESG performance to the performance of selected peers to help inform future ESG decisions and drive internal performance improvements.
Global
Covered Companies
of 13,585
Rank
Percentile
Refiners & Pipelines
Industry
of 147
Rank
Percentile
Oil & Gas Refining and Marketing
Subindustry
of 76
Rank
Percentile
Idemitsu Kosan Exits (5)
Idemitsu Kosan’s most recent exit was on 11-Apr-2022 from SmartScan (Decision/Risk Analysis). The exit was categorized as with 8 buyers.
| Company Name | Exit Date | Exit Type | Exit Size | Status | Buyers |
|---|---|---|---|---|---|
| SmartScan (Decision/Risk Analysis) | 11-Apr-2022 | Completed |
|
||
| Qlc Produce | 01-Jan-2021 | Completed |
|
||
| Trende | 25-Sep-2018 | Completed |
|
||
| Oyasu Geothermal Power | 13-Sep-2018 | Completed |
|
||
| Idemitsu Petroleum UK | 30-Nov-2009 | Merger/Acquisition | Completed |
Idemitsu Kosan Affiliates
Subsidiaries (9)
| Name | Industry | Location | Year Founded |
|---|---|---|---|
| Apollolink | Tokyo, Japan | 2020 | |
| Idemitsu Renewables America Development | San Francisco, CA | 2015 | |
| Idemitsu Chemicals Usa Corporation | Novi, MI | 1986 | |
| Idemitsu Apollo Corporation | Sacramento, CA | 1976 | |
| SDS Biotech | Tokyo, Japan | 1968 |
Idemitsu Kosan FAQs
-
When was Idemitsu Kosan founded?
Idemitsu Kosan was founded in 1940.
-
Where is Idemitsu Kosan headquartered?
Idemitsu Kosan is headquartered in Tokyo, Japan.
-
What is the size of Idemitsu Kosan?
Idemitsu Kosan has 19,531 total employees.
-
What industry is Idemitsu Kosan in?
Idemitsu Kosan’s primary industry is Energy Exploration.
-
Is Idemitsu Kosan a private or public company?
Idemitsu Kosan is a Public company.
-
What is Idemitsu Kosan’s stock symbol?
The ticker symbol for Idemitsu Kosan is 5019.
-
What is the current stock price of Idemitsu Kosan?
As of 13-Nov-2026 the stock price of Idemitsu Kosan is $8.10.
-
What is the current market cap of Idemitsu Kosan?
The current market capitalization of Idemitsu Kosan is $9.7B.
-
What is Idemitsu Kosan’s current revenue?
The trailing twelve month revenue for Idemitsu Kosan is $59.6B.
-
Who are Idemitsu Kosan’s competitors?
Japan Petroleum Exploration, ENEOS Holdings, and Motul are competitors of Idemitsu Kosan.
-
What is Idemitsu Kosan’s annual earnings per share (EPS)?
Idemitsu Kosan’s EPS for 12 months was $2.27.
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