Marken
- A+K
- ABBYY
- ABSEN
- ABUS
- AcBel
- Acctim
- ACCURATUS
- Acer
- Acronis
- ACS
- act
- Adaptec
- ADATA
- ADDIMAT
- ADDIS
- AddOn Networks
- Adobe
- Adonit
- ADVANTECH
- AEG
- AERO
- AeroCool
- AF
- Affenzahn
- AG neovo
- AgfaPhoto
- Agfeo
- AGILENT
- Air Wick
- Airtame
- AIS
- Aixcase
- AKS-ANKER
- Alassio
- Alba
- Alcasa
- Alcatel
- Alcatel-Lucent Enterprise
- Allied Telesis
- Alogic
- Alumaxx
- Amazon
- AMD
- AMEWI
- amphenol
- AMTECH