# The 49 largest chemical companies in Japan

Tamtam tracks 51 chemical companies headquartered in Japan. This list ranks the 49 largest by number of employees on LinkedIn, led by SUMITOMO ELECTRIC INTERCON'T PROD (M) SB, Asahi Kasei and AGC Group. Their median headcount is 950. Half of them were founded in 1928 or later. The most common headquarters are Tokyo (10) and Osaka (2).

This selection of Japanese companies consists primarily of large established firms in the chemical and manufacturing sectors. Many were founded in the early to mid-20th century. Notable examples include Sumitomo Electric Intercon't Prod, a global network of 414 companies, Asahi Kasei, providing healthcare products and advanced materials, AGC Group, a supplier of various types of glass and chemicals, and Toray Industries, Inc., developing fibers, textiles, and performance chemicals.

A significant cluster of these companies, such as Asahi Kasei, AGC Group, JSP, Kurita Group, and Fujifilm Group, are headquartered in Tokyo, indicating a concentration of these industries in the capital city. The companies demonstrate a broad application of chemical and manufacturing expertise across diverse fields, from automotive and electronics to healthcare and environmental solutions.

🇯🇵 Japan · 49 companies · Updated Nov 12, 2026

| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [SUMITOMO ELECTRIC INTERCON'T PROD (M) SB](https://www.tamtam.ai/c/sumitomo-electric) (sumitomoelectric.com)<br>A global network of 414 companies in 40 countries, originally focused on copper wire production, now diversified into automotive, infocommunications, electronics, environment, energy, and industrial materials | Manufacturing | 🇯🇵 Osaka | 289,000 | 1897 |
| 2 | [Asahi Kasei](https://www.tamtam.ai/c/asahi-kasei) (asahi-kasei.com)<br>Global company providing healthcare products, residential solutions, and advanced materials to improve life quality and support sustainable development worldwide. | Chemical Manufacturing | 🇯🇵 Tokyo | 10,369 | 1922 |
| 3 | [AGC Group](https://www.tamtam.ai/c/agc-group) (agc.com)<br>supplier of flat, automotive, display glass, chemicals, ceramics, and high-tech materials with global operations and strong innovation focus | Glass, Ceramics and Concrete Manufacturing | 🇯🇵 Tokyo | 4,786 |  |
| 4 | [NSG Group](https://www.tamtam.ai/c/nsg-group) (nsg.com)<br>Manufactures glass and glazing products for architectural, automotive, and technical sectors with global operations and diverse product applications. | Glass, Ceramics and Concrete Manufacturing | 🇯🇵 Minato-ku | 4,624 | 1918 |
| 5 | [KYOCERA Global](https://www.tamtam.ai/c/kyocera-global) (global.kyocera.com)<br>Development of fine ceramics, semiconductor components, electronic devices, AI, IoT systems, and document solutions addressing critical global issues. | Appliances, Electrical, and Electronics Manufacturing | 🇯🇵 Kyoto City | 4,375 |  |
| 6 | [JGC](https://www.tamtam.ai/c/jgc) (jgc.com)<br>A global group operating in Total Engineering and Functional Materials Manufacturing, contributing to economic growth and industrial development in various countries | Oil and Gas | 🇯🇵 Minato Mirai | 4,235 | 1928 |
| 7 | [Toray Industries, Inc.](https://www.tamtam.ai/c/toray-industries-inc) (toray.com)<br>Development of fibers, textiles, performance chemicals, carbon fiber composites, environment engineering, pharmaceuticals, and medical products using advanced chemical technologies worldwide. | Chemical Manufacturing | 🇯🇵 Chuo-ku | 3,225 | 1926 |
| 8 | [Kuraray](https://www.tamtam.ai/c/kuraray) (kuraray.com)<br>A global specialty chemical company, focusing on fibers, resins, chemicals, and other products for various industries, committed to innovation and addressing social issues | Chemical Manufacturing | 🇯🇵 Chiyoda-ku | 2,833 | 1926 |
| 9 | [Mitsui Chemicals Group](https://www.tamtam.ai/c/mitsui-chemicals-group) (mitsuichemicals.com)<br>A multinational chemical company, listed on the Tokyo Stock Exchange, that develops environmentally friendly materials for various industries globally | Chemical Manufacturing | 🇯🇵 Chuo | 2,715 | 1997 |
| 10 | [JSP](https://www.tamtam.ai/c/jsp) (jsp.com)<br>Global provider of innovative high function, high value impact energy management materials for automotive, HVAC, packaging, sports, and consumer goods markets | Plastics Manufacturing | 🇯🇵 Tokyo | 2,380 | 1962 |
| 11 | [KONICA MINOLTA, INC.](https://www.tamtam.ai/c/konica-minolta-inc) (konicaminolta.us)<br>Development manufacturing sales multifunctional peripherals printers healthcare systems measuring instruments electronic materials optical products functional films | Appliances, Electrical, and Electronics Manufacturing | 🇯🇵 Chiyoda-ku | 2,344 | 1936 |
| 12 | [Mitsubishi Chemical Group](https://www.tamtam.ai/c/mitsubishi-chemical-group) (mcgc.com)<br>Leading innovative solutions in mobility, digital, medical, and food sectors to enhance well-being of people and the planet. | Chemical Manufacturing | 🇯🇵 Chiyoda-ku | 1,904 |  |
| 13 | [Teijin Limited](https://www.tamtam.ai/c/teijin-limited) (teijin.com)<br>Innovative global group specializing in materials, healthcare, and IT solutions, focused on environmental value, safety, and health consciousness | Chemical Manufacturing | 🇯🇵 Chiyoda-ku | 1,882 |  |
| 14 | [Kurita Group](https://www.tamtam.ai/c/kurita-group) (kurita.co.jp)<br>A global leader in water treatment solutions, offering chemicals, facilities, and services worldwide to create new value for customers and society | Environmental Services | 🇯🇵 Tokyo | 1,754 | 1949 |
| 15 | [Fujifilm Group](https://www.tamtam.ai/c/fujifilm-group) (holdings.fujifilm.com)<br>A holding company overseeing FUJIFILM Group's diverse businesses, adapting to digitalization by expanding into multiple growth fields beyond traditional photography materials | Chemical Manufacturing | 🇯🇵 Minato-ku | 1,715 | 1934 |
| 16 | [Resonac](https://www.tamtam.ai/c/resonac) (resonac.com)<br>This company specializes in cutting-edge functional materials technologies and aims to co-create a better society through innovative solutions in the chemical industry | Chemical Manufacturing | 🇯🇵 Minato-ku | 1,691 | 1939 |
| 17 | [Sumitomo Chemical](https://www.tamtam.ai/c/sumitomo-chemical) (sumitomo-chem.co.jp)<br>A company originally addressing air pollution from copper smelting, now focuses on diverse businesses driven by technological innovation to benefit society | Chemical Manufacturing | 🇯🇵 Chuo-ku | 1,636 | 1913 |
| 18 | [Takasago International Corporation](https://www.tamtam.ai/c/takasago-international-corporation) (takasago.com)<br>A global leader in flavor, fragrance, and aroma ingredients, specializing in developing innovative products for food, beverage, and personal care industries worldwide | Chemical Manufacturing | 🇯🇵 Nissey Aroma Square 17F 5-37-1 Kamata | 1,626 | 1920 |
| 19 | [SAKATA INX CORPORATION](https://www.tamtam.ai/c/sakata-inx-corporation) (inx.co.jp)<br>Specializing in manufacturing printing inks and functional materials, we innovate with earth-friendly technology to enhance life with color and happiness | Chemical Manufacturing | 🇯🇵 Osaka-shi | 1,567 | 1896 |
| 20 | [Ajinomoto Co., Inc.](https://www.tamtam.ai/c/ajinomoto-co-inc) (ajinomoto.com)<br>Global food and amino acid business, uses bioscience and fine chemical technologies to support healthy lives through sustainable solutions. | Food and Beverage Services | 🇯🇵 Chuo-ku | 1,523 |  |
| 21 | [SEKISUI CHEMICAL](https://www.tamtam.ai/c/sekisui-chemical) (sekisui.co.jp)<br>Global chemical manufacturer established in 1947, operating in housing, social infrastructure, high-performance materials, and life sciences for a sustainable society. | Chemical Manufacturing | 🇯🇵 | 1,455 | 1947 |
| 22 | [Nagase & Co., Ltd.](https://www.tamtam.ai/c/nagase-and-co-ltd) (nagase.com)<br>A company with nearly 200 years of expertise in various industries helping partners identify, develop, and expand new business opportunities through innovative solutions | Chemical Manufacturing | 🇯🇵 Chiyoda-ku | 1,175 |  |
| 23 | [Nitto Denko Corporation](https://www.tamtam.ai/c/nitto-denko-corporation) (nitto.com)<br>Development and supply of diverse products for electronics, automobiles, housing, infrastructure, environment, and medical fields worldwide with innovation focus. | Chemical Manufacturing | 🇯🇵 Osaka | 1,174 | 1918 |
| 24 | [ENEOS](https://www.tamtam.ai/c/eneos-group) (hd.eneos.co.jp)<br>Leading energy and materials group in Asia, focusing on low carbon solutions and advanced product development in collaboration with top Japanese automotive manufacturers | Oil and Gas | 🇯🇵 Tokyo | 1,120 | 1888 |
| 25 | [Toyo Seikan Group](https://www.tamtam.ai/c/toyo-seikan-group) (tskg-hd.com)<br>A global packaging manufacturer that produces containers from metal, plastic, paper, and glass, aiming to create new societal value | Packaging and Containers Manufacturing | 🇯🇵 Shinagawa | 950 | 1917 |
| 26 | [DIC Corporation](https://www.tamtam.ai/c/dic-corporation) (dic-global.com)<br>Established in 1908, the company specializes in manufacturing printing inks, organic pigments, and synthetic resins, offering solutions for various industries worldwide | Chemical Manufacturing | 🇯🇵 Chuo-ku | 831 | 1908 |
| 27 | [Nippon Steel Corporation](https://www.tamtam.ai/c/nippon-steel-corporation) (nipponsteel.com)<br>A global steelmaker based in Japan focused on technology, cost efficiency, and global presence, striving to become the best in the industry | Machinery Manufacturing | 🇯🇵 Tokyo | 734 | 1950 |
| 28 | [NIPPON SHOKUBAI](https://www.tamtam.ai/c/nippon-shokubai) (shokubai.co.jp)<br>A global chemical company since 1941, specializing in unique catalyst technology and supplying products like ethylene oxide, acrylic acid, and superabsorbent polymer | Chemical Manufacturing | 🇯🇵 Chuo-ku | 715 | 1941 |
| 29 | [FURUKAWA ELECTRIC GROUP](https://www.tamtam.ai/c/furukawa-electric-group) (furukawa.co.jp)<br>A global leader in developing advanced materials and technologies for telecommunications, energy, automotive, and electronics industries to enable a sustainable society | Appliances, Electrical, and Electronics Manufacturing | 🇯🇵 Chiyoda | 633 | 1884 |
| 30 | [Sumitomo Chemical](https://www.tamtam.ai/c/sumitomo-chemical-924163) (sumitomo-chem.co.jp)<br>Global provider of plant protection chemicals including insecticides, fungicides, herbicides, and plant growth regulators sold in over 110 countries worldwide | Chemicals | 🇯🇵 | 529 |  |
| 31 | [Polyplastics](https://www.tamtam.ai/c/polyplastics) (polyplastics-global.com)<br>Specialized manufacturer of high performance resins, offering engineering polymer solutions for automotive, home appliances, and various industries worldwide | Plastics Manufacturing | 🇯🇵 Minato-ku | 503 | 1962 |
| 32 | [artience group (former Toyo Ink Group)](https://www.tamtam.ai/c/artience-group-former-toyo-ink-group) (artiencegroup.com)<br>A Japan-based innovator providing diverse fine chemical products globally, using core technologies in coatings, dispersions, polymers, and color materials | Chemical Manufacturing | 🇯🇵 Tokyo | 460 | 1896 |
| 33 | [JFE Steel Corporation](https://www.tamtam.ai/c/jfe-steel-corporation) (jfe-steel.co.jp)<br>A steelmaker using innovative technology to produce steel products from iron ore, while also developing environmentally friendly ironmaking processes and steel materials | Industrial Machinery Manufacturing | 🇯🇵 Chiyoda-ku | 453 | 2003 |
| 34 | [Nippon Electric Glass / NEG](https://www.tamtam.ai/c/nippon-electric-glass-neg) (neg.co.jp)<br>Manufacture and sale of specialty glass products and glassmaking machinery, focusing on advanced creative manufacturing and environmental sustainability. | Glass, Ceramics and Concrete Manufacturing | 🇯🇵 Otsu | 446 | 1949 |
| 35 | [Tamura Corporation](https://www.tamtam.ai/c/tamura-corporation) (tamuracorp.com)<br>Manufacture and supply of electronic components, chemical mounting, and information equipment supporting industries, energy, and social infrastructure sectors. | Appliances, Electrical, and Electronics Manufacturing | 🇯🇵 Tokyo | 384 | 1924 |
| 36 | [JSR Corporation](https://www.tamtam.ai/c/jsr-corporation) (jsr.co.jp)<br>Development and supply of innovative chemical materials aimed at creating new value and contributing to societal advancement and future generations. | Chemical Manufacturing | 🇯🇵 Minato | 376 | 1957 |
| 37 | [SHINAGAWA REFRA CO., LTD.](https://www.tamtam.ai/c/shinagawa-refra-co-ltd) (shinagawa.co.jp)<br>Established in 1875, pioneers in manufacturing refractory bricks supporting key industries and contributing to society's progress and development | Glass, Ceramics and Concrete Manufacturing | 🇯🇵 Chiyoda | 355 | 1875 |
| 38 | [UBE Corporation](https://www.tamtam.ai/c/ube-corporation) (ube.com)<br>Manufacturing technologies delivering safe, environmentally friendly chemical products addressing global environmental issues and contributing to health and enriched society. | Chemical Manufacturing | 🇯🇵 Minato-ku | 346 | 1897 |
| 39 | [住友化学（株）](https://www.tamtam.ai/c/company-33427818) (sumitomo-chem.co.jp)<br>A chemicals company based in Tokyo, Japan, specializing in the manufacture and distribution of various chemical products | Chemical Manufacturing | 🇯🇵 Chuo | 337 |  |
| 40 | [Niterra Co., Ltd.](https://www.tamtam.ai/c/niterra-co-ltd) (niterragroup.com)<br>A manufacturer specializing in fine ceramics, offering comprehensive products and services | Glass, Ceramics and Concrete Manufacturing | 🇯🇵 | 335 | 1936 |
| 41 | [Nissha](https://www.tamtam.ai/c/nissha) (nissha.com)<br>Global company creating technology & economic value through core technologies like Laminating, Coating, Molding, and Printing in 4 diverse segments | Manufacturing | 🇯🇵 Nakagyo-ku | 324 | 1929 |
| 42 | [Idemitsu Kosan Co.,Ltd.](https://www.tamtam.ai/c/idemitsu-kosan-co-ltd) (idemitsu.com)<br>Engages in global oil, fuel, and chemical distribution. Specializes in lubricants, performance chemicals, engineering plastics, and electronic materials, alongside resource businesses like coal and uranium. | Oil and Gas | 🇯🇵 | 314 |  |
| 43 | [Kao Asia & Oceania](https://www.tamtam.ai/c/kao-asia-and-oceania) (kao.com)<br>A global consumer product company focusing on beauty care, health care, fabric & home care, and chemical products with a customer-centric approach | Manufacturing | 🇯🇵 Tokyo | 288 | 1887 |
| 44 | [Lion Corporation Japan](https://www.tamtam.ai/c/lion-corporation-japan) (lion.co.jp)<br>A leading Japanese company established in 1891, producing and marketing a wide range of consumer products and high-performance chemicals for various industries | Consumer Goods | 🇯🇵 Tokyo | 278 | 1891 |
| 45 | [SEKISUI S-LEC](https://www.tamtam.ai/c/sekisui-s-lec) (s-lecfilm.com)<br>A global leader in PVB interlayer technology for laminated glass, providing solutions for safety, security, design, UV blocking, sound acoustic, and more | Chemical Manufacturing | 🇯🇵 Tokyo | 269 | 1958 |
| 46 | [The Yokohama Rubber Co., Ltd.](https://www.tamtam.ai/c/the-yokohama-rubber-co-ltd) (y-yokohama.com)<br>Manufactures and sells a wide range of tires, rubber products, conveyor belts, marine equipment, and other products for various industries | Chemical Manufacturing | 🇯🇵 Tokyo | 216 | 1917 |
| 47 | [Tosoh Corporation](https://www.tamtam.ai/c/tosoh-corporation) (tosoh.com)<br>Global chemical company supplying specialty and commodity chemicals to industries including automotive, electronics, bioscience, construction, and environmental sectors. | Chemical Manufacturing | 🇯🇵 Chuo-ku | 188 | 1935 |
| 48 | [Nikkei MC Aluminium Co., Ltd.](https://www.tamtam.ai/c/nikkei-mc-aluminium-co-ltd) (nmca.jp)<br>Specializing in aluminum alloys, the company focuses on developing new alloys, expanding overseas, and producing environmentally friendly recycled alloys for automotive and electrical industries worldwide | Mining | 🇯🇵 Tokyo | 24 | 2007 |
| 49 | [Tras Ltd.](https://www.tamtam.ai/c/tras-ltd) (tras.co.jp)<br>Specializing in advanced composite materials production, including carbon fibers and natural fibers for various applications | Motor Vehicle Manufacturing | 🇯🇵 Mishima | 10 | 1990 |

## How this list is built

Every company on this list has a Tamtam company profile. The industry is the one the company gives on LinkedIn; categories such as SaaS or fintech are classified by Tamtam's AI from the company's website and LinkedIn page; and the headquarters city must match the company's own address. Companies are ranked by the number of employees on LinkedIn, and the list is refreshed every night. Classifications can be wrong, so treat the list as a starting point rather than an official ranking. Last updated Nov 12, 2026.

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## The same list elsewhere

- [Chemical companies in the world](https://www.tamtam.ai/l/chemical-companies-in-the-world) (6,503)
- [Chemical companies in Asia](https://www.tamtam.ai/l/chemical-companies-in-asia) (971)

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Source: https://www.tamtam.ai/l/chemical-companies-japan