| 2H Offshore Engineering Ltd (Covered by Acteon Group Ltd - United Kingdom) | United Kingdom | Oil and Gas |
| 3 Shires Welding Supplies Ltd (Covered by BOC Ltd - United Kingdom) | United Kingdom | Equipment Consumables and Materials |
| 3-Phase Measurements AS | Norway | Oil and Gas |
| AACE Pty Ltd (Covered by MCA Australia Group - Australia) | Australia | Construction |
| AAR Mobility Systems | United States | Aerospace |
| ABB Automation Ltd, Water & Industrial Business Unit | United Kingdom | Electronics and Sensors |
| ABRO (Covered by Ministry of Defence - United Kingdom) | United Kingdom | Construction |
| Abu Dhabi Co for Onshore Oil Operations (ADCO) | United Arab Emirates | Oil and Gas |
| Abu Dhabi Gas Industries Ltd (GASCO) | United Arab Emirates | Oil and Gas |
| Abu Dhabi Marine Operating Co (ADMA-OPCO) | United Arab Emirates | Oil and Gas |
| Abu Dhabi Oil Refining Co (TAKREER) | United Arab Emirates | Oil and Gas |
| ACAL Energy Ltd | United Kingdom | Power |
| ACB | France | Aerospace |
| Access Design & Engineering | United Kingdom | Construction |
| Acteon Group Ltd | United Kingdom | Oil and Gas |
| Adlens Ltd | United Kingdom | Medical |
| Advanced Bionics Corp (Covered by Boston Scientific Corporation - United States) | United States | Medical |
| Advanced Fusion Processes Ltd (Covered by Electron Beam Processes Ltd - United Kingdom) | United Kingdom | Equipment Consumables and Materials |
| Advanced Joining Technologies Inc | United States | Aerospace |
| Advanced Metal Products Inc | United States | Equipment Consumables and Materials |
| AECL CANDU (Covered by Atomic Energy of Canada Ltd - Canada) | Canada | Power |
| Aera Energy LLC (Covered by Shell UK Ltd - United Kingdom) | United States | Oil and Gas |
| Aero Engine Controls Ltd (Covered by Rolls-Royce plc - United Kingdom) | United Kingdom | Aerospace |
| AEROLIA (Covered by European Aeronautic Defence and Space Company NV - Germany) | France | Aerospace |
| AEROLIA MÉAULTE (Covered by European Aeronautic Defence and Space Company NV - Germany) | France | Aerospace |
| AGA AS (Covered by Linde Group - Germany) | Norway | Equipment Consumables and Materials |
| AGA Gas AB (Covered by Linde Group - Germany) | Sweden | Equipment Consumables and Materials |
| AGA Gas Inc (Covered by Linde Group - Germany) | United States | Equipment Consumables and Materials |
| AGA SA (Covered by Linde Group - Germany) | Uruguay | Equipment Consumables and Materials |
| AGA-Rayburn | United Kingdom | Construction |
| Agip (UK) (Covered by ENI SpA - Exploration & Production Division - Italy) | United Kingdom | Oil and Gas |
| Agip KCO (Covered by ENI SpA - Exploration & Production Division - Italy) | United Kingdom | Oil and Gas |
| AGIP SpA Serv Nost (Covered by ENI SpA - Exploration & Production Division - Italy) | Italy | Oil and Gas |
| Air Accidents Investigation Branch (Covered by Department for Transport (DfT) - United Kingdom) | United Kingdom | Aerospace |
| Air BP Ltd (Covered by BP plc - United Kingdom) | United Kingdom | Equipment Consumables and Materials |
| Air Liquide | France | Equipment Consumables and Materials |
| Air Liquide - CEPIA (Covered by Air Liquide - France) | France | Equipment Consumables and Materials |
| Air Liquide (Pty) Ltd (Covered by Air Liquide - France) | South Africa | Equipment Consumables and Materials |
| Air Liquide America Corp (Covered by Air Liquide - France) | United States | Equipment Consumables and Materials |
| Air Liquide Argentina SA (Covered by Air Liquide - France) | Argentina | Equipment Consumables and Materials |
| Air Liquide Australia Ltd (Covered by Air Liquide - France) | Australia | Equipment Consumables and Materials |
| Air Liquide Belge SA (Covered by Air Liquide - France) | Belgium | Equipment Consumables and Materials |
| Air Liquide Brasil (Covered by Air Liquide - France) | Brazil | Equipment Consumables and Materials |
| Air Liquide Canada (Covered by Air Liquide - France) | Canada | Equipment Consumables and Materials |
| Air Liquide Espana SA (Covered by Air Liquide - France) | Spain | Equipment Consumables and Materials |
| Air Liquide Gas AB (Covered by Air Liquide - France) | Sweden | Equipment Consumables and Materials |
| Air Liquide GmbH (Covered by Air Liquide - France) | Germany | Equipment Consumables and Materials |
| Air Liquide Hellas SA (Covered by Air Liquide - France) | Greece | Equipment Consumables and Materials |
| Air Liquide India Holdings Pvt Ltd (Covered by Air Liquide - France) | India | Equipment Consumables and Materials |
| Air Liquide Indonesie (Covered by Air Liquide - France) | Indonesia | Equipment Consumables and Materials |
| Air Liquide Italia Service Srl (Covered by Air Liquide - France) | Italy | Equipment Consumables and Materials |
| Air Liquide Italia Srl (Covered by Air Liquide - France) | Italy | Equipment Consumables and Materials |
| Air Liquide Japan (Covered by Air Liquide - France) | Japan | Equipment Consumables and Materials |
| Air Liquide Philippines (Covered by Air Liquide - France) | Philippines | Equipment Consumables and Materials |
| Air Liquide Portugal (Covered by Air Liquide - France) | Portugal | Equipment Consumables and Materials |
| Air Liquide Taiwan (Covered by Air Liquide - France) | Peoples Republic of China - Taiwan | Equipment Consumables and Materials |
| Air Liquide UK Limited (Covered by Air Liquide - France) | United Kingdom | Equipment Consumables and Materials |
| Air Liquide Welding (Covered by Air Liquide - France) | France | Equipment Consumables and Materials |
| Air Liquide Welding Italy (Covered by Air Liquide - France) | Italy | Equipment Consumables and Materials |
| Air Liquide Welding Limited (Covered by Air Liquide - France) | United Kingdom | Equipment Consumables and Materials |
| Air Liquide/CTAS (Covered by Air Liquide - France) | France | Equipment Consumables and Materials |
| Air Liquido (Covered by Air Liquide - France) | Portugal | Equipment Consumables and Materials |
| Air Products & Chemicals Inc | United States | Equipment Consumables and Materials |
| Air Products (Covered by Air Products & Chemicals Inc - United States) | France | Equipment Consumables and Materials |
| Air Products (Middle East) FZE (Covered by Air Products & Chemicals Inc - United States) | United Arab Emirates | Equipment Consumables and Materials |
| Air Products Asia (Covered by Air Products & Chemicals Inc - United States) | Singapore | Equipment Consumables and Materials |
| Air Products China (Covered by Air Products & Chemicals Inc - United States) | China | Equipment Consumables and Materials |
| Air Products Eastern (Covered by Air Products & Chemicals Inc - United States) | United States | Equipment Consumables and Materials |
| Air Products Nederland BV (Covered by Air Products & Chemicals Inc - United States) | Netherlands | Equipment Consumables and Materials |
| Air Products NV/SA (Covered by Air Products & Chemicals Inc - United States) | Belgium | Equipment Consumables and Materials |
| Air Products Permea Divn (Covered by Air Products & Chemicals Inc - United States) | United States | Equipment Consumables and Materials |
| Air Products plc (Covered by Air Products & Chemicals Inc - United States) | United Kingdom | Equipment Consumables and Materials |
| Air Products South Africa Pty Ltd (Covered by Air Products & Chemicals Inc - United States) | South Africa | Equipment Consumables and Materials |
| Airbags International Ltd (Covered by Autoliv Inc - Sweden) | United Kingdom | Automotive |
| Airbus Filton (Covered by European Aeronautic Defence and Space Company NV - Germany) | United Kingdom | Aerospace |
| Airbus Operations GmbH (Covered by European Aeronautic Defence and Space Company NV - Germany) | Germany | Aerospace |
| Airbus Operations Limited (Covered by European Aeronautic Defence and Space Company NV - Germany) | United Kingdom | Aerospace |
| Airbus Operations SAS (Covered by European Aeronautic Defence and Space Company NV - Germany) | France | Aerospace |
| Airbus Operations SL (Covered by European Aeronautic Defence and Space Company NV - Germany) | Spain | Aerospace |
| Airbus SAS (Covered by European Aeronautic Defence and Space Company NV - Germany) | France | Aerospace |
| Aircelle Ltd (Covered by SAFRAN GROUP - France) | United Kingdom | Aerospace |
| Aisin Europe Manufacturing (UK) Ltd (Covered by Aisin Seiki Co Ltd - Japan) | United Kingdom | Automotive |
| Aisin Europe SA (Covered by Aisin Seiki Co Ltd - Japan) | Belgium | Automotive |
| Aisin Seiki Co Ltd | Japan | Automotive |
| Aisin World Corp of America (Covered by Aisin Seiki Co Ltd - Japan) | United States | Automotive |
| AIXTRON Ltd | United Kingdom | Electronics and Sensors |
| Aker Solutions Woodfield Systems Ltd | United Kingdom | Oil and Gas |
| Aker Solutions Workover Systems | Norway | Oil and Gas |
| Aker Subsea AS - Drilling Risers (Fornebu) | Norway | Oil and Gas |
| Aker Subsea Ltd - Subsea Field Development | United Kingdom | Oil and Gas |
| Al Air Liquide SA (Covered by Air Liquide - France) | Spain | Automotive |
| Albea Group - Colchester | United Kingdom | Equipment Consumables and Materials |
| Alcotec Wire Company (Covered by ESAB AB - Sweden) | United States | Equipment Consumables and Materials |
| Aleris Aluminium | Belgium | Equipment Consumables and Materials |
| Aleris Aluminium Duffel B V B A (Covered by Aleris Aluminium - Belgium) | Belgium | Equipment Consumables and Materials |
| Aleris Aluminum Koblenz GmbH (Covered by Aleris Aluminium - Belgium) | Germany | Equipment Consumables and Materials |
| Aleva Neurotherapeutics SA | Switzerland | Medical |
| Alfa Laval AB | Sweden | Construction |
| Alfa Laval Kolding (Covered by Alfa Laval AB - Sweden) | Sweden | Construction |
| Alfa Laval Lund AB (Covered by Alfa Laval AB - Sweden) | Sweden | Construction |
