Producers
- A.B.A.
- ABA
- Abakus
- ABE
- Abro
- A.B.S.
- ABT
- Accel
- AC Delco
- Achr
- Ackojap
- Ac Rolcar
- ACS
- AD
- ADE
- Adrenaline
- Adriauto
- Advics
- AE
- AFAM
- AG Autoparts
- AGC
- A-Gist
- AIC
- Airkraft
- Airline
- Airtech
- Airtex
- Aisin
- Ajusa
- Akai
- Akebono
- Akitaka
- Akkussan
- AKRON (Malo)
- AKS Dasis
- Akusan
- Akyoto
- Alanko
- Alca
- Alco Filter
- Aled
- Alkar
- AL-KO
- All Balls Racing
- Allied Nippon
- Allis Chalmers
- Alloid
- Allpin
- Alon
- Alpha Filter
- Alpina
- Alpinestars
- Alutechnik
- AMC
- AMC Filters
- AMD
- AM Gears
- Amiwa
- AMK
- AMP (Malaysia)
- AMT
- AND
- Andrmax
- Andtech (Andac)
- A-N Parts
- Anschler
- Apec Braking
- API
- Applus
- Approved Green
- APR
- AquaPlus
- Aral
- Arco
- Ariete
- Arirang
- Armer
- Armoplate
- Arnott
- Aroma Car
- Arteb
- Asam
- Ashika
- Ashok Leyland
- Ashuki
- Asia360
- Asimco
- Asin
- ASL
- ASM
- Asmet
- AS Metal
- Aspar
- AS-PL
- AS S.L.U.
- Asso
- Asva
- AT
- AT Autoteile
- ATC Qingdao
- Ate
- A-Tech
- Atek
- ATG
- Athena
- Auarita
- Auger
- Aurora
- Autex
- Autlog
- Auto Extra
- Autofamily NovLine
- Autofren
- Autogamma
- Auto-Gur
- Autokit
- Autoland
- Automega
- Automotor France
- Autoteam
- Autotechteile
- Autowelt
- Ava
- Avantech
- AV Autotechnik
- Avista (Pennasol)
- AVS
- Avtech
- Avtodizel (YAMZ)
- Avto-Gumm
- Axut
- Axxis
- AYD
- Ayfar
- Aywiparts