UOP LLC operates as a supplier and technology licensor for the petroleum refining, gas processing and petrochemical production. Its products include catalysts and adsorbents. The firm offers design, commissioning, ongoing operations, and optimization services. The company was founded on June 17, 1914 and is headquartered in Des Plaines, IL.

Standard Oil Co. explores and produces crude oil and natural gas. The company is headquartered in Cleveland, OH.

BP Plc operates as an integrated oil and gas company. It operates through the following segments: Upstream, Downstream and Rosneft. The Upstream segment engages in the oil and natural gas exploration, field development and production, midstream transportation, storage and processing, and marketing and trade of natural gas, including liquefied natural gas and power, and natural gas liquids. The Downstream segment refines, manufactures, markets, transports, supplies, and trades crude oil, petroleum, petrochemicals products and related services to wholesale and retail customers. The Rosneft segment engages in investment activities. The company was founded by William Knox D'Arcy on April 14, 1909 and is headquartered in London, the United Kingdom.

Imperial Chemical Industries (ICI) was a British chemical company and was, for much of its history, the largest manufacturer in Britain. It was formed by the merger of leading British chemical companies in 1926. Its headquarters were at Millbank in London, and it was a constituent of the FT 30 and later the FTSE 100 indices.

AlliedSignal, Stratford, CT is a Delivery company.

Union Carbide Corporation is an American manufacturer of chemicals, petrochemicals, and related products. It focuses on the manufacture of building-block chemicals such as ethylene and propylene, which are converted into widely used plastics resins, primarily polyethylene. It is also a producer of ethylene oxide and ethylene glycol used to make polyester fibers and antifreeze, respectively. Union Carbide makes solvents and intermediates (oxo aldehydes and esters), vinyl acetate monomer, water-soluble polymers, and polyolefin-based compounds. Union Carbide Corporation was formed in 1917 from the combination of four companies: Union Carbide Co. (incorporated 1898), Linde Air Products Co. (incorporated 1907), National Carbon Co., Inc. (incorporated 1899), and Prest-O-Lite Co., Inc. (incorporated 1913).

Manufactures and sells chemicals

The Monsanto Company (/mɒnˈsæntoʊ/) was an American agrochemical and agricultural biotechnology corporation founded in 1901. In 2018, it was acquired by Bayer as part of its crop science division. It was headquartered in Creve Coeur, Missouri. Monsanto developed Roundup, a glyphosate-based herbicide, in the 1970s, and became a major producer of genetically engineered crops.

BASF AB supplies raw materials to paper, chemicals, and construction industries. Its products include construction chemical, crop protection products, dispersions and pigments, plastics, polyurethane systems and coating products. The company was founded in 1953 and is headquartered in Göteborg, Sweden.

Siemens AG is a technology company, which engages in the areas of automation and digitalization in the process and manufacturing industries, infrastructure for buildings and energy systems, mobility solutions for rail transport, and medical technology and digital healthcare services. It operates through the following segments: Digital Industries, Smart Infrastructure, Mobility, Siemens Healthineers, and Siemens Financial Services. The Digital Industries segment offers a product portfolio and system solutions for automation used in discrete and process industries. The Smart Infrastructure segment includes products, systems, solutions, services and software to support a transition from fossil to renewable energy sources. The Mobility segment combines all Siemens businesses in the area of passenger and freight transportation. The Siemens Healthineers segment develops, manufactures, and sells diagnostic and therapeutic products, and services to healthcare providers. The Siemens Financial Services segment focuses on financing solutions for Siemens’ customers as well as other companies in the form of debt and equity investments. The company was founded by Johann Georg Halske and Werner von Siemens on October 12, 1847 and is headquartered in Munich, Germany.

Rohm and Haas Company is a manufacturer of speciality chemicals for end use markets such as building and construction, electronic devices, packaging, household and personal care products. Headquartered in Philadelphia, the company is organised into three business groups of Specialty Materials, Performance Materials and Electronic Materials, and also has two stand-alone businesses of Powder Coatings and Salt. Formerly a Fortune 500 Company, Rohm and Haas employs more than 17,000 people in 27 countries, with its last sales revenue reported as an independent company at US$8.9 billion. Dow Chemical Company bought Rohm and Haas for $15 billion in 2009.

OHCERA Co. Ltd. engages in the research, development, manufacturing, sale, import and export of ceramic products. Its products include recoxit, recotherm, carbon fiber and composite materials. The company was founded on May 1, 1990 and is headquartered in Osaka, Japan.

SABIC (Saudi Basic Industries Corporation) is a diversified manufacturing company, active in chemicals and intermediates, industrial polymers, fertilizers and metals. It is the largest public company in Saudi Arabia, as listed in Tadawul, but the Saudi government still owns 70% of its shares. SABIC is also the largest company in the Middle East. Private shareholders are from Saudi Arabia and other countries of the six-nation Gulf Cooperation Council (GCC). SABIC is currently the second largest global ethylene glycol producer and is expected to top the list after the introduction of new projects. SABIC is the third largest polyethylene manufacturer, the fourth largest polyolefins manufacturer, and the fourth largest polypropylene manufacturer. SABIC is also the world’s largest producer of mono-ethylene glycol, MTBE, granular urea, polycarbonate, polyphenylene and polyether imide. In 2008, SABIC was ranked fourth in the world by Fortune Global 500. By 2009, SABIC also improved its position to become the world’s 186th largest corporation. In 2010, SABIC grew to be the second largest diversified chemical company, or first when measured only by asset value. Measured over all its branches, it became (as of 2014) the world's 94th largest corporation on the Forbes Global 2000 ranking, with sales revenues of $50.4 billion, profits of $6.6 billion and assets standing at $90.2 billion.

Amedeo Nappi SpA operates as a chemical company. It specializes in production of waxes, paraffins, microcristalline, emulsions, and special blends. The company was founded in 1967 and is headquartered in Liveri, Italy.

Dow manufactures and sells chemicals, plastic materials, and agricultural services. They deliver products and services to customers in electronics, water, energy, coatings, and agriculture. They specialize in materials science to deliver solutions for customers in packaging, infrastructure, and consumer care.

Solutia uses world-class skills in applied chemistry to create value-added solutions for customers, whose products improve the lives of consumers every day. Solutia is a world leader in performance films for laminated safety glass and after-market applications; process development and scale-up services for pharmaceutical fine chemicals; specialties such as water treatment chemicals, heat transfer fluids and aviation hydraulic fluid and an integrated family of nylon products including high-performance polymers and fibers.

Snamprogetti SpA designs and executes large scale onshore plants. The firm offers design and implementation of projects for the production and treatment of hydrocarbons, to the conversion and upgrading of the bottom of the barrel from conventional and unconventional crude oils, petrochemicals and chemicals, pipelines and sealines, environmental activities and infrastructures. The company is headquartered in San Donato Milanese, Italy.