Amot
Amphenol
Analytec
Analytic Jena
Angst-Pfister
Anritsu
Aplisens
Apollo
Aprimatic
ARCA
ARDETEM
Aron
Arrow Pneumatics
Ascon
Stübbe
ATI Industrial Automation
Atlantic
Atorn
Atos
Automation Direct
Broadcom (Avago Technologies)
Avs Römer
Axiomatic Technologies Corp.
Ayvaz
Bachofen
Backer
Badger Meter
Baelz
Bahco
Bailey-Mackey