| Name | Country | Market Cap (US$) |
|---|
| "UNIKRISTALL" Produktions- und Vertriebs-GmbH | Austria | Private |
| 15 Big Pond Road, Inc. | United States | Private |
| 20 MICRONS LIMITED | India | Private |
| 3F CHIMICA SPA | Italy | Private |
| 3v Sigma Spa | Italy | Private |
| A C M A Ltd | United Kingdom | Private |
| Abello Linde, S.A. | Spain | Private |
| Acrilonitrila do Nordeste (ACRINOR) | Brazil | Private |
| Actacorp Holdings Bhd | Malaysia | Private |
| Ad Productions B.V. | Netherlands | Private |
| ADCHEM (AUSTRALIA) PTY. LTD. | Australia | Private |
| Advachem SA | Belgium | Private |
| Advance Research Chemicals, Inc. | United States | Private |
| ADVANCE SURFACTANTS INDIA LIMITED | India | Private |
| ADVANCED MATERIAL RESOURCES (EUROPE) LTD. | United Kingdom | Private |
| AEKHK OAO | Russia | Private |
| Aekyung (Ningbo) Chemical Co., Ltd. | China | Private |
| Aerospace Propulsion Products (A. P.P.) B.V. | Netherlands | Private |
| AGC SEIMI CHEMICAL CO.,LTD. | Japan | Private |
| AGC SI-TECH CO., LTD. | Japan | Private |
| Aikoh Co., Ltd. | Japan | Private |
| Air Liquide Danmark A/S | Denmark | Private |
| AIR LIQUIDE IMPIANTI GASSIFICAZIONE SRL | Italy | Private |
| Air Liquide Italia Srl | Italy | Private |
| Air Products And Chemicals (Changzhou) Co., Ltd. | China | Private |
| Air Products Polymers, L.L P. | United States | Private |
| Airgas Carbonic Inc | United States | Private |
| AKCA KIMYEVI MADDELER NAKLIYAT TICARET VE SANAYI A S | Turkey | Private |
| Akcros Chemicals Ltd | United Kingdom | Private |
| Akrilat OAO | Russia | Private |
| AKULU-MARCHON (PTY) LTD | South Africa | Private |
| Akzo Nobel Amides Co., Ltd. | South Korea | Private |
| Akzo Nobel Base Chemicals Gmbh | Germany | Private |
| Akzo Nobel Chemicals S.A. | Belgium | Private |
| Akzo Nobel Cross-Linking Peroxides (Ningbo) Co., Ltd. | China | Private |
| Akzo Nobel Industrial Chemicals AB | Sweden | Private |
| Akzo Nobel Polymer Chemicals Llc | United States | Private |
| Akzo Nobel Surface Chemistry AB | Sweden | Private |
| Akzonobel Crosslinking Proxides (Ningbo) Co., Ltd. | China | Private |
| Albemarle Catalysts Company, Lp | United States | Private |
| Albemarle Corporation | United States | Private |
| Alcavis International, Inc. | United States | Private |
| Aldoro Indústria de Pós e Pigmentos Metálicos Ltda. | Brazil | Private |
| Alexandria Carbon Black S.A.E. | Egypt | Private |
| Algol Oyj | Finland | Private |
| Allied Corporation | United States | Private |
| Almatis B.V. | Netherlands | Private |
| Almatis, Inc. | United States | Private |
| ALPA AZIENDA LAVORAZIONE PRODOTTI AUSILIARI SPA | Italy | Private |
| Alpha Galvano Química Brasileira Ltda. | Brazil | Private |
| AlphaGary Corporation | United States | Private |
| ALTAIR CHIMICA SPA | Italy | Private |
| Aluminium & Chemie Rotterdam B.V. | Netherlands | Private |
| Alzofert Spa | Algeria | Private |
| AMBROGIO PAGANI SPA | Italy | Private |
| Amerchol Corporation | United States | Private |
| American Chemet Corporation | United States | Private |
| American Metal Chemical Corporation | United States | Private |
| American Synthetic Rubber Corporation | United States | Private |
| Americhem, Inc. | United States | Private |
| Amersham Holding Inc. | United States | Private |
| AMGAL CHEMICALS MANUFACTURING (1989) LTD. | Israel | Private |
| AMIA CO., LTD. | Taiwan | Private |
| AMITT, UAB | Lithuania | Private |
| Ampacet Canada Company | Canada | Private |
| AMPACET ITALIA SRL | Italy | Private |
| Angarski zavod polimerov OAO | Russia | Private |
| Anglo United plc | United Kingdom | Private |
| Angus Chemical Company | United States | Private |
| Anhidridos y Derivados de Colombia S.A. | Colombia | Private |
| Anhui Chloro-Alkali Chemical Group Co., Ltd. | China | Private |
| Anhui Huatai Chemical Industry Co., Ltd. | China | Private |
| Anyang Xingya Washing Products Co., Ltd. | China | Private |
| AP Resinas S.A de C.V. | Mexico | Private |
| APPLIED AUSTRALIA PTY LTD | Australia | Private |
| Aqua Process, Inc | United States | Private |
| Aqualab Química Industrial Ltda | Brazil | Private |
| Aqualon Company | United States | Private |
| AR Zinc S.A. | Argentina | Private |
| Ara Química S/A. | Brazil | Private |
| Arboris, Llc | United States | Private |
| Arch UK Biocides Limited | United Kingdom | Private |
| ARCH WATER PRODUCTS FRANCE | France | Private |
| ARCHIMICA CHEMICALS LTD | United Kingdom | Private |
| ARCO Chemical Company | United States | Private |
| AREVA NC | France | Private |
| Arizona Chemical AB | Sweden | Private |
| ARIZONA CHEMICAL LTD | United Kingdom | Private |
| Arkema (Changshu) Fluorochemical Co., Ltd. | China | Private |
| Arkema Canada Inc | Canada | Private |
| Arkema Delaware Inc. | United States | Private |
| ARKEMA Hydrogen Peroxide Co., Ltd. | China | Private |
| Armtec Countermeasures Co | United States | Private |
| ARTENIUS TURKPET KIMYEVI MADDELER PET AMBALAJ MALZ SAN A S | Turkey | Private |
| ASADA KAGAKU KOGYO K.K. | Japan | Private |
| ASAHI ROKAZAI K.K. | Japan | Private |
| ASH RESOURCES LTD | United Kingdom | Private |
| Ashland Specialty Chemical Company | United States | Private |
| ASHTA Chemicals, Inc. | United States | Private |
| ASIA LITHARGE SDN BHD | Malaysia | Private |
|
