By customer
- An automobile manufacturer
- An automotive consumer website
- A navigation system manufacturer
- ANCAP
- ANCIS
- andagon
- Anderson University
- An energy company
- An information services agency
- An insurance company in Canada
- An insurance company
- An insurance provider
- An International Biopharmaceutical Company
- An international financing institution
- An Italian transportation company
- Anna Aluminium
- An oil company
- An online baby care retailer
- An online grocer
- An online retailer in the United Kingdom
- Anonymous
- A northern European city
- A/O Bayer
- AP7
- Apache Corporation
- A passenger and vehicle ferry service
- Aperity
- APIS IT
- APN News & Media
- A postal services provider in Europe
- Apotek 1
- A power company
- Apple Vacations
- A public safety organization
- A publishing powerhouse
- Aqualia
- ARBURG
- ArcelorMittal Gent
- ARC Resources Ltd.
- Area Travel Agency
- A regional government
- A resort and casino
- A retail mortgage lending firm
- Argility
- Argos Risk LLC
- Arizona Public Service
- Arkansas Tech University
- Arla Foods
- Armstrong World Industries
- Arnold Jäger Holding
- Aéroport Nice Côte d’Azur
- ARTE
- arvato services
- Arver Lastbilar
- Asahi Glass Company
- Asamer Holding AG
- ASG Worldwide
- Ashfield In2Focus
- Ashurst Australia
- Asian Energy Exchange
- Asian Paints
- ASKO BV
- A software company
- A South American Retail Chain
- A sports website
- Assess Systems
- Assurant Solutions
- Astaro – a Sophos company
- A*STAR
- A state agency
- Astra Infotech Pvt Ltd
- A technology institute in the Asia Pacific region
- A Telecommunication Client
- Athletes' Performance
- ATK
