- Acorda Therapeutics Inc
- ACS
- Actelion Ltd
- Activision Blizzard, Inc.
- Acuity Brands Inc.
- Adamas Pharmaceuticals Inc
- Adamis Pharmaceuticals Corp
- Adaptimmune Therapeutics Plc
- Adecco Group AG
- Adecoagro S.A.
- Adidas AG
- ADMA Biologics Inc
- Admiral Group
- ADO Properties SA
- Adobe Systems Inc
- ADT Inc.
- Adtalem Global Education Inc
- Advance Auto Parts Inc
- Advanced Micro Devices Inc
- Adverum Biotechnologies Inc
- Adyen NV
- AECOM
- Aedifica SA
- Aegon NV
- Aena SME
- AerCap Holdings NV
- Aerojet Rocketdyne Holdings Inc
- AeroVironment Inc.
- Aerpio Pharmaceuticals Inc
- AES Corp
- Aeterna Zentaris Inc
- Aetna Inc
- Affiliated Managers Group
- Affirm
- Aflac Inc
- A.G. Barr PLC
- AG Mortgage Investment Trust Inc
- AGCO Corp
- AgEagle Aerial Systems Inc
- Ageas NV
- Agenus Inc
- Aggreko
- Agile Therapeutics Inc
- Agilent Technologies Inc
- AGNC Investment Corp
- Agnico Eagle Mines Ltd
- Agora Inc
- Agree Realty Corp
- Agricultural Bank of China
- AIA Group Ltd